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strax_interface.py
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strax_interface.py
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from copy import deepcopy
from immutabledict import immutabledict
import logging
import numpy as np
import pandas as pd
from scipy.interpolate import interp1d
import uproot
import typing as ty
import strax
import straxen
import wfsim
from strax.utils import tqdm
export, __all__ = strax.exporter()
logging.basicConfig(handlers=[logging.StreamHandler()])
log = logging.getLogger('wfsim.interface')
log.setLevel('WARNING')
__all__ += ['instruction_dtype', 'optical_extra_dtype', 'truth_extra_dtype']
_cached_wavelength_to_qe_arr = {}
instruction_dtype = [(('Waveform simulator event number.', 'event_number'), np.int32),
(('Quanta type (S1 photons or S2 electrons)', 'type'), np.int8),
(('Time of the interaction [ns]', 'time'), np.int64),
(('X position of the cluster [cm]', 'x'), np.float32),
(('Y position of the cluster [cm]', 'y'), np.float32),
(('Z position of the cluster [cm]', 'z'), np.float32),
(('Number of quanta', 'amp'), np.int32),
(('Recoil type of interaction.', 'recoil'), np.int8),
(('Energy deposit of interaction', 'e_dep'), np.float32),
(('Eventid like in geant4 output rootfile', 'g4id'), np.int32),
(('Volume id giving the detector subvolume', 'vol_id'), np.int32),
(('Local field [ V / cm ]', 'local_field'), np.float64),
(('Number of excitons', 'n_excitons'), np.int32),
(('X position of the primary particle [cm]', 'x_pri'), np.float32),
(('Y position of the primary particle [cm]', 'y_pri'), np.float32),
(('Z position of the primary particle [cm]', 'z_pri'), np.float32),
]
optical_extra_dtype = [(('first optical input index', '_first'), np.int32),
(('last optical input index +1', '_last'), np.int32)]
truth_extra_dtype = [
(('End time of the interaction [ns]', 'endtime'), np.int64),
(('Number of simulated electrons', 'n_electron'), np.int32),
(('Number of photons reaching PMT', 'n_photon'), np.int32),
(('Number of photons + dpe passing', 'n_pe'), np.int32),
(('Number of photons passing trigger', 'n_photon_trigger'), np.int32),
(('Number of photons + dpe passing trigger', 'n_pe_trigger'), np.int32),
(('Raw area in pe', 'raw_area'), np.float64),
(('Raw area in pe passing trigger', 'raw_area_trigger'), np.float64),
(('Number of photons reaching PMT (bottom)', 'n_photon_bottom'), np.int32),
(('Number of photons + dpe passing (bottom)', 'n_pe_bottom'), np.int32),
(('Number of photons passing trigger (bottom)', 'n_photon_trigger_bottom'), np.int32),
(('Number of photons + dpe passing trigger (bottom)', 'n_pe_trigger_bottom'), np.int32),
(('Raw area in pe (bottom)', 'raw_area_bottom'), np.float64),
(('Raw area in pe passing trigger (bottom)', 'raw_area_trigger_bottom'), np.float64),
(('Arrival time of the first photon [ns]', 't_first_photon'), np.float64),
(('Arrival time of the last photon [ns]', 't_last_photon'), np.float64),
(('Mean time of the photons [ns]', 't_mean_photon'), np.float64),
(('Standard deviation of photon arrival times [ns]', 't_sigma_photon'), np.float64),
(('X field-distorted mean position of the electrons [cm]', 'x_mean_electron'), np.float32),
(('Y field-distorted mean position of the electrons [cm]', 'y_mean_electron'), np.float32),
(('Arrival time of the first electron [ns]', 't_first_electron'), np.float64),
(('Arrival time of the last electron [ns]', 't_last_electron'), np.float64),
(('Mean time of the electrons [ns]', 't_mean_electron'), np.float64),
(('Standard deviation of electron arrival times [ns]', 't_sigma_electron'), np.float64),]
@export
def extra_truth_dtype_per_pmt(n_pmt: ty.Union[bool, int]) -> ty.List[tuple]:
"""
Generate the extra - truth dtype output
Return total/bottom seperation from truth_extra_dtype if n_pmt is False
:param n_pmt: Number of PMTs, when false (no PMTs, use total/bottom separation)
:return: dtype list
"""
if not n_pmt:
return truth_extra_dtype
return [
(('End time of the interaction [ns]', 'endtime'), np.int64),
(('Number of simulated electrons', 'n_electron'), np.int32),
# Per PMT fields
(('Number of photons reaching PMT', 'n_photon_per_pmt'), (np.int32, n_pmt)),
(('Number of photons + dpe passing', 'n_pe_per_pmt'), (np.int32, n_pmt)),
(('Number of photons passing trigger', 'n_photon_trigger_per_pmt'), (np.int32, n_pmt)),
(('Number of photons + dpe passing trigger', 'n_pe_trigger_per_pmt'), (np.int32, n_pmt)),
(('Raw area in pe', 'raw_area_per_pmt'), (np.float64, n_pmt)),
(('Raw area in pe passing trigger', 'raw_area_trigger_per_pmt'), (np.float64, n_pmt)),
# Aggregate (total) fields
(('Number of photons reaching PMT (total)', 'n_photon'), np.int32),
(('Number of photons + dpe passing (total)', 'n_pe'), np.int32),
(('Number of photons passing trigger (total)', 'n_photon_trigger'), np.int32),
(('Number of photons + dpe passing trigger (total)', 'n_pe_trigger'), np.int32),
(('Raw area in pe (total)', 'raw_area'), np.float64),
(('Raw area in pe passing trigger (total)', 'raw_area_trigger'), np.float64),
# General fields
(('Arrival time of the first photon [ns]', 't_first_photon'), np.float64),
(('Arrival time of the last photon [ns]', 't_last_photon'), np.float64),
(('Mean time of the photons [ns]', 't_mean_photon'), np.float64),
(('Standard deviation of photon arrival times [ns]', 't_sigma_photon'), np.float64),
(('X field-distorted mean position of the electrons [cm]', 'x_mean_electron'), np.float32),
(('Y field-distorted mean position of the electrons [cm]', 'y_mean_electron'), np.float32),
(('Arrival time of the first electron [ns]', 't_first_electron'), np.float64),
(('Arrival time of the last electron [ns]', 't_last_electron'), np.float64),
(('Mean time of the electrons [ns]', 't_mean_electron'), np.float64),
(('Standard deviation of electron arrival times [ns]', 't_sigma_electron'), np.float64),
]
def rand_instructions(c):
"""Random instruction generator function. This will be called by wfsim if you do not specify
specific instructions.
:params c: wfsim configuration dict"""
log.warning('rand_instructions is deprecated, please use wfsim.random_instructions')
if 'drift_field' not in c:
log.warning('drift field not specified!')
# Do the conversion for now, don't break everything all at once
return _rand_instructions(event_rate=c.get('event_rate', 10),
chunk_size=c.get('chunk_size', 5),
n_chunk=c.get('n_chunk', 2),
energy_range=[1, 100], # keV
drift_field=c.get('drift_field', 100), # V/cm
tpc_radius=c.get('tpc_radius', straxen.tpc_r),
tpc_length=c.get('tpc_length', straxen.tpc_z),
nest_inst_types=[7]
)
def random_instructions(**kwargs) -> np.ndarray:
"""
Generate instructions to run WFSim
:param event_rate: # events per second
:param chunk_size: the size of each chunk
:param n_chunk: the number of chunks
:param drift_field:
:param energy_range: the energy range (in keV) of the recoil type
:param tpc_length: the max depth of the detector
:param tpc_radius: the max radius of the detector
:param nest_inst_types: the nestpy type of the interaction see:
github.com/NESTCollaboration/nestpy/blob/8eb79414e5f834eb6cf6ddba5d6c433c6b0cbc70/src/nestpy/helpers.py#L27
:return: Instruction array that can be used for simulation in wfsim
"""
return _rand_instructions(**kwargs)
def _rand_instructions(
event_rate: int,
chunk_size: int,
n_chunk: int,
drift_field: float,
energy_range: ty.Union[tuple, list, np.ndarray],
tpc_length: float = straxen.tpc_z,
tpc_radius: float = straxen.tpc_r,
nest_inst_types: ty.Union[ty.List[int], ty.Tuple[ty.List], np.ndarray, None] = None,
) -> np.ndarray:
import nestpy
if nest_inst_types is None:
nest_inst_types = [7]
n_events = event_rate * chunk_size * n_chunk
total_time = chunk_size * n_chunk
inst = np.zeros(2 * n_events, dtype=instruction_dtype)
inst[:] = -1
uniform_times = total_time * (np.arange(n_events) + 0.5) / n_events
inst['time'] = np.repeat(uniform_times, 2) * int(1e9)
inst['event_number'] = np.digitize(inst['time'],
1e9 * np.arange(n_chunk) *
chunk_size) - 1
inst['type'] = np.tile([1, 2], n_events)
r = np.sqrt(np.random.uniform(0, tpc_radius ** 2, n_events))
t = np.random.uniform(-np.pi, np.pi, n_events)
inst['x'] = np.repeat(r * np.cos(t), 2)
inst['y'] = np.repeat(r * np.sin(t), 2)
inst['z'] = np.repeat(np.random.uniform(-tpc_length, 0, n_events), 2)
inst['x_pri'] = inst['x']
inst['y_pri'] = inst['y']
inst['z_pri'] = inst['z']
# Here we'll define our XENON-like detector
nest_calc = nestpy.NESTcalc(nestpy.VDetector())
nucleus_A = 131.293
nucleus_Z = 54.
lxe_density = 2.862 # g/cm^3 #SR1 Value
energy = np.random.uniform(*energy_range, n_events)
quanta = []
exciton = []
recoil = []
e_dep = []
for energy_deposit in tqdm(energy, desc='generating instructions from nest'):
interaction_type = np.random.choice(nest_inst_types)
interaction = nestpy.INTERACTION_TYPE(interaction_type)
y = nest_calc.GetYields(interaction,
energy_deposit,
lxe_density,
drift_field,
nucleus_A,
nucleus_Z,
)
q = nest_calc.GetQuanta(y, lxe_density)
quanta.append(q.photons)
quanta.append(q.electrons)
exciton.append(q.excitons)
exciton.append(0)
# both S1 and S2
recoil += [interaction_type, interaction_type]
e_dep += [energy_deposit, energy_deposit]
inst['amp'] = quanta
inst['local_field'] = drift_field
inst['n_excitons'] = exciton
inst['recoil'] = recoil
inst['e_dep'] = e_dep
for field in inst.dtype.names:
if np.any(inst[field] == -1):
log.warning(f'{field} is not (fully) filled')
return inst
def _read_optical_nveto(config, events, mask):
"""Helper function for nveto to read photon channels and timings from G4 and apply QE's
:params config: dict, wfsim configuration
:params events: g4 root file
:params mask: 1d bool array to select events
returns two flatterned nested arrays of channels and timings,
"""
channels = np.hstack(events["pmthitID"].array(library="np")[mask])
timings = np.hstack(events["pmthitTime"].array(library="np")[mask] * 1e9).astype(np.int64)
constant_hc = 1239.841984 # (eV*nm) to calculate (wavelength lambda) = h * c / energy
wavelengths = np.hstack(constant_hc / events["pmthitEnergy"].array(library="np")[mask])
# Caching a 2d array of interpolated value of (channel, wavelength [every nm])
h = strax.deterministic_hash(config)
nveto_channels = np.arange(config['channel_map']['nveto'][0], config['channel_map']['nveto'][1] + 1)
if h not in _cached_wavelength_to_qe_arr:
resource = wfsim.load_config(config)
if getattr(resource, 'nv_pmt_qe', None) is None:
log.warning('nv pmt qe data not specified all qe default to 100 %')
_cached_wavelength_to_qe_arr[h] = np.ones([len(nveto_channels), 1000]) * 100
else:
qe_data = resource.nv_pmt_qe
wavelength_to_qe_arr = np.zeros([len(nveto_channels), 1000])
for ich, channel in enumerate(nveto_channels):
wavelength_to_qe_arr[ich] = interp1d(qe_data['nv_pmt_qe_wavelength'],
qe_data['nv_pmt_qe'][str(channel)],
bounds_error=False,
kind='linear',
fill_value=(0, 0))(np.arange(1000))
_cached_wavelength_to_qe_arr[h] = wavelength_to_qe_arr
# retrieving qe by index
hit_mask = (channels >= nveto_channels[0]) & (channels <= nveto_channels[-1])
channels[~hit_mask] = nveto_channels[0]
wavelengths[(wavelengths < 0) | (wavelengths >= 999)] = 0
qes = _cached_wavelength_to_qe_arr[h][channels - nveto_channels[0],
np.around(wavelengths).astype(np.int64)]
hit_mask &= np.random.rand(len(qes)) <= qes * config.get('nv_pmt_ce_factor', 1.0) / 100
amplitudes, og_offset = [], 0
for tmp in events["pmthitID"].array(library="np")[mask]:
og_length = len(tmp)
amplitudes.append(hit_mask[og_offset:og_offset + og_length].sum())
og_offset += og_length
return channels[hit_mask], timings[hit_mask], np.array(amplitudes, int)
@export
def read_optical(config):
"""Function will be executed when wfsim in run in optical mode. This function expects c['fax_file']
to be a root file from optical mc
:params config: wfsim configuration dict"""
data = uproot.open(config['fax_file'])
try:
events = data.get('events')
except AttributeError:
raise Exception("Are you using mc version >4?")
# Slightly weird here. Entry_stop is not in the regular config, so if it's not skip this part
g4id = events['eventid'].array(library="np")
if config.get('entry_stop', None) is None:
config['entry_stop'] = np.max(g4id) + 1
mask = ((g4id < config.get('entry_stop', int(2**63-1)))
& (g4id >= config.get('entry_start', 0)))
n_events = len(g4id[mask])
if config['detector'] == 'XENONnT_neutron_veto':
channels, timings, amplitudes = _read_optical_nveto(config, events, mask)
# Still need to shift nveto channel for simulation code to work
channels -= config['channel_map']['nveto'][0]
else:
# TPC
channels = np.hstack(events["pmthitID"].array(library="np")[mask])
timings = np.hstack(events["pmthitTime"].array(library="np")[mask] * 1e9).astype(np.int64)
amplitudes = np.array([len(tmp) for tmp in events["pmthitID"].array(library="np")[mask]])
# Events should be in the TPC
ins = np.zeros(n_events, dtype=instruction_dtype + optical_extra_dtype)
ins['x'] = events["xp_pri"].array(library="np").flatten()[mask] / 10.
ins['y'] = events["yp_pri"].array(library="np").flatten()[mask] / 10.
ins['z'] = events["zp_pri"].array(library="np").flatten()[mask] / 10.
ins['x_pri'] = np.zeros(n_events, np.int64)
ins['y_pri'] = np.zeros(n_events, np.int64)
ins['z_pri'] = np.zeros(n_events, np.int64)
ins['time'] = np.zeros(n_events, np.int64)
ins['event_number'] = np.arange(n_events)
ins['g4id'] = events['eventid'].array(library="np")[mask]
ins['type'] = np.repeat(1, n_events)
ins['recoil'] = np.repeat(1, n_events)
ins['_first'] = np.cumsum(amplitudes) - amplitudes
ins['_last'] = np.cumsum(amplitudes)
# Need to shift the timing and split long pulses
ins = wfsim.optical_adjustment(ins, timings, channels)
return ins, channels, timings
def instruction_from_csv(filename):
"""
Return wfsim instructions from a csv
:param filename: Path to csv file
"""
df = pd.read_csv(filename)
recs = np.zeros(len(df), dtype=instruction_dtype)
for column in df.columns:
recs[column] = df[column]
expected_dtype = np.dtype(instruction_dtype)
assert recs.dtype == expected_dtype, \
f"CSV {filename} produced wrong dtype. Got {recs.dtype}, expected {expected_dtype}."
return recs
@export
class ChunkRawRecords(object):
def __init__(self, config, rawdata_generator=wfsim.RawData, **kwargs):
log.debug(f'Starting {self.__class__.__name__}')
self.config = config
log.debug(f'Setting raw data with {rawdata_generator.__name__}')
self.rawdata = rawdata_generator(self.config, **kwargs)
self.record_buffer = np.zeros(5000000,
dtype=strax.raw_record_dtype(samples_per_record=strax.DEFAULT_RECORD_LENGTH))
truth_per_n_pmts = self._n_channels if config.get('per_pmt_truth') else False
self.truth_dtype = extra_truth_dtype_per_pmt(truth_per_n_pmts)
self.truth_buffer = np.zeros(10000, dtype=instruction_dtype + self.truth_dtype + [('fill', bool)])
self.blevel = 0 # buffer_filled_level
def __call__(self, instructions, time_zero=None, **kwargs):
"""
:param instructions: Structured array with instruction dtype in strax_interface module
:param time_zero: Starting time of the first chunk
"""
samples_per_record = strax.DEFAULT_RECORD_LENGTH
if len(instructions) == 0: # Empty
yield from np.array([], dtype=strax.raw_record_dtype(samples_per_record=samples_per_record))
self.rawdata.source_finished = True
return
dt = self.config['sample_duration']
buffer_length = len(self.record_buffer)
rext = int(self.config['right_raw_extension'])
cksz = int(self.config['chunk_size'] * 1e9)
# Save the constants as privates
self.blevel = 0 # buffer_filled_level
self.chunk_time_pre = time_zero - rext if time_zero else np.min(instructions['time']) - rext
self.chunk_time = self.chunk_time_pre + cksz # Starting chunk
self.current_digitized_right = self.last_digitized_right = 0
for channel, left, right, data in self.rawdata(instructions=instructions,
truth_buffer=self.truth_buffer,
**kwargs):
pulse_length = right - left + 1
records_needed = int(np.ceil(pulse_length / samples_per_record))
if self.rawdata.right != self.current_digitized_right:
self.last_digitized_right = self.current_digitized_right
self.current_digitized_right = self.rawdata.right
if self.rawdata.left * dt > self.chunk_time + rext:
next_left_time = self.rawdata.left * dt
log.debug(f'Pause sim loop at {self.chunk_time}, next pulse start at {next_left_time}')
if (self.last_digitized_right + 1) * dt > self.chunk_time:
extend = (self.last_digitized_right + 1) * dt - self.chunk_time
self.chunk_time += extend
log.debug(f'Chunk happenned during event, extending {extend} ns')
yield from self.final_results()
self.chunk_time_pre = self.chunk_time
self.chunk_time += cksz
if self.blevel + records_needed > buffer_length:
log.warning('Chunck size too large, insufficient record buffer \n'
'No longer in sync if simulating nVeto with TPC \n'
'Consider reducing the chunk size')
next_left_time = self.rawdata.left * dt
self.chunk_time = (self.last_digitized_right + 1) * dt
log.debug(f'Pause sim loop at {self.chunk_time}, next pulse start at {next_left_time}')
yield from self.final_results()
self.chunk_time_pre = self.chunk_time
self.chunk_time += cksz
if self.blevel + records_needed > buffer_length:
log.warning('Pulse length too large, insufficient record buffer, skipping pulse')
continue
# WARNING baseline and area fields are zeros before finish_results
s = slice(self.blevel, self.blevel + records_needed)
self.record_buffer[s]['channel'] = channel
self.record_buffer[s]['dt'] = dt
self.record_buffer[s]['time'] = dt * (left + samples_per_record * np.arange(records_needed))
self.record_buffer[s]['length'] = [min(pulse_length, samples_per_record * (i+1))
- samples_per_record * i for i in range(records_needed)]
self.record_buffer[s]['pulse_length'] = pulse_length
self.record_buffer[s]['record_i'] = np.arange(records_needed)
self.record_buffer[s]['data'] = np.pad(data,
(0, records_needed * samples_per_record - pulse_length),
'constant').reshape((-1, samples_per_record))
self.blevel += records_needed
self.last_digitized_right = self.current_digitized_right
self.chunk_time = max((self.last_digitized_right + 1) * dt, self.chunk_time_pre + dt)
yield from self.final_results()
def final_results(self):
records = self.record_buffer[:self.blevel] # No copying the records from buffer
log.debug(f'Yielding chunk from {self.rawdata.__class__.__name__} '
f'between {self.chunk_time_pre} - {self.chunk_time}')
maska = records['time'] <= self.chunk_time
if self.blevel >= 1:
max_r_time = records['time'].max()
log.debug(f'Truncating data at sample time {self.chunk_time}, last record time {max_r_time}')
else:
log.debug(f'Truncating data at sample time {self.chunk_time}, no record is produced')
records = records[maska]
records = strax.sort_by_time(records) # Do NOT remove this line
# Yield an appropriate amount of stuff from the truth buffer
# and mark it as available for writing again
maskb = (
self.truth_buffer['fill'] &
# This condition will always be false if self.truth_buffer['t_first_photon'] == np.nan
((self.truth_buffer['t_first_photon'] <= self.chunk_time) |
# Hence, we need to use this trick to also save these cases (this
# is what we set the end time to for np.nans)
(np.isnan(self.truth_buffer['t_first_photon']) &
(self.truth_buffer['time'] <= self.chunk_time)))
)
truth = self.truth_buffer[maskb] # This is a copy, not a view!
# Careful here: [maskb]['fill'] = ... does not work
# numpy creates a copy of the array on the first index.
# The assignment then goes to the (unused) copy.
# ['fill'][maskb] leads to a view first, then the advanced
# assignment works into the original array as expected.
self.truth_buffer['fill'][maskb] = False
truth.sort(order='time')
# Return truth without 'fill' field
_truth = np.zeros(len(truth), dtype=instruction_dtype + self.truth_dtype)
for name in _truth.dtype.names:
_truth[name] = truth[name]
_truth['time'][~np.isnan(_truth['t_first_photon'])] = \
_truth['t_first_photon'][~np.isnan(_truth['t_first_photon'])].astype(int)
_truth.sort(order='time')
# Oke this will be a bit ugly but it's easy
if self.config['detector'] == 'XENON1T' or self.config['detector'] == 'XENONnT_neutron_veto':
yield dict(raw_records=records,
truth=_truth)
elif self.config['detector'] == 'XENONnT':
yield dict(raw_records=records[records['channel'] < self.config['channel_map']['he'][0]],
raw_records_he=records[(records['channel'] >= self.config['channel_map']['he'][0]) &
(records['channel'] <= self.config['channel_map']['he'][-1])],
raw_records_aqmon=records[records['channel'] == 800],
truth=_truth)
self.record_buffer[:np.sum(~maska)] = self.record_buffer[:self.blevel][~maska]
self.blevel = np.sum(~maska)
def source_finished(self):
return self.rawdata.source_finished
@property
def _n_channels(self):
return len(self.config.get('gains', np.arange(straxen.n_tpc_pmts)))
@strax.takes_config(
strax.Option('detector', default='XENONnT', track=True, infer_type=False),
strax.Option('event_rate', default=1000, track=False, infer_type=False,
help="Average number of events per second"),
strax.Option('chunk_size', default=100, track=False, infer_type=False,
help="Duration of each chunk in seconds"),
strax.Option('n_chunk', default=10, track=False, infer_type=False,
help="Number of chunks to simulate"),
strax.Option('per_pmt_truth', default=False, track=True, type=bool,
help="Store the info per channel in the truth file"),
strax.Option('fax_file', default=None, track=False, infer_type=False,
help="Directory with fax instructions"),
strax.Option('fax_config', default='fax_config_nt_design.json'),
strax.Option('fax_config_override', default=None, infer_type=False,
help="Dictionary with configuration option overrides"),
strax.Option('fax_config_override_from_cmt', default=None, infer_type=False,
help="Dictionary of fax parameter names (key) mapped to CMT config names (value)"
"where the fax parameter values will be replaced by CMT"),
strax.Option('channel_map', track=False, type=immutabledict,
help="immutabledict mapping subdetector to (min, max) "
"channel number. Provided by context"),
strax.Option('n_tpc_pmts', track=False, infer_type=False,
help="Number of pmts in tpc. Provided by context"),
strax.Option('n_top_pmts', track=False, infer_type=False,
help="Number of pmts in top array. Provided by context"),
strax.Option('right_raw_extension', default=100000, infer_type=False),
strax.Option('seed', default=False, track=False, infer_type=False,
help="Option for setting the seed of the random number generator used for"
"generation of the instructions"),
)
class SimulatorPlugin(strax.Plugin):
compressor = 'zstd'
depends_on = tuple()
# Cannot arbitrarily rechunk records inside events
rechunk_on_save = False
# Simulator uses iteration semantics, so the plugin has a state
# this seems avoidable...
parallel = False
# this state is needed for sorting checks,
# but it prevents prevent parallelization
last_chunk_time = -999999999999999
# A very very long input timeout, our simulator takes time
input_timeout = 3600 # as an hour
gain_model_mc = straxen.URLConfig(
default="cmt://to_pe_model?version=ONLINE&run_id=plugin.run_id",
infer_type=False,
help='PMT gain model. Specify as (model_type, model_config).')
def setup(self):
self.set_config()
self.get_instructions()
self.check_instructions()
self._setup()
def set_config(self,):
self.config.update(straxen.get_resource(self.config['fax_config'], fmt='json'))
overrides = self.config['fax_config_override']
if overrides is not None:
self.config.update(overrides)
# backwards compatibility
if 'field_distortion_on' in self.config and not 'field_distortion_model' in self.config:
self.config.update({'field_distortion_model': "inverse_fdc" if self.config['field_distortion_on'] else "none"})
# Update gains to the nT defaults
to_pe = self.gain_model_mc
self.to_pe = to_pe
adc_2_current = (self.config['digitizer_voltage_range']
/ 2 ** (self.config['digitizer_bits'])
/ self.config['pmt_circuit_load_resistor'])
self.config['gains'] = np.divide(adc_2_current,
self.to_pe,
out=np.zeros_like(self.to_pe),
where=self.to_pe != 0)
if self.config['seed']:
np.random.seed(self.config['seed'])
# We hash the config to load resources. Channel map is immutable and cannot be hashed
self.config['channel_map'] = dict(self.config['channel_map'])
self.config['channel_map']['sum_signal'] = 800
self.config['channels_bottom'] = np.arange(self.config['n_top_pmts'], self.config['n_tpc_pmts'])
# Update some values stored in CMT
if self.config['fax_config_override_from_cmt'] is not None:
for fax_field, cmt_option in self.config['fax_config_override_from_cmt'].items():
if (fax_field in ['fdc_3d', 's1_lce_correction_map']
and self.config.get('default_reconstruction_algorithm', False)):
cmt_option = tuple(['suffix',
self.config['default_reconstruction_algorithm'],
*cmt_option])
cmt_value = straxen.get_correction_from_cmt(self.run_id, cmt_option)
log.warning(f'Replacing {fax_field} with CMT option {cmt_option} to {cmt_value}')
self.config[fax_field] = cmt_value
def _setup(self):
# Set in inheriting class
pass
def get_instructions(self):
# Set in inheriting class
pass
def check_instructions(self):
# Set in inheriting class
pass
def _sort_check(self, results):
if not isinstance(results, list):
results = [results]
last_chunk_time = self.last_chunk_time
for result in results:
if len(result) == 0:
continue
if result['time'][0] < self.last_chunk_time + 1000:
raise RuntimeError(
"Simulator returned chunks with insufficient spacing. "
f"Last chunk's max time was {self.last_chunk_time}, "
f"this chunk's first time is {result['time'][0]}.")
if len(result) == 1:
continue
if np.diff(result['time']).min() < 0:
raise RuntimeError("Simulator returned non-sorted records!")
last_chunk_time = max(result['time'].max(), self.last_chunk_time)
self.last_chunk_time = last_chunk_time
def is_ready(self, chunk_i):
"""Overwritten to mimic online input plugin.
Returns False to check source finished;
Returns True to get next chunk.
"""
if 'ready' not in self.__dict__:
self.ready = False
self.ready ^= True # Flip
return self.ready
def source_finished(self):
"""Return whether all instructions has been used."""
return self.sim.source_finished()
@property
def _n_channels(self):
return len(self.config.get('gains', np.arange(straxen.n_tpc_pmts)))
@property
def _truth_dtype(self):
truth_per_n_pmts = self._n_channels if self.config.get('per_pmt_truth') else False
return extra_truth_dtype_per_pmt(truth_per_n_pmts)
@export
class RawRecordsFromFaxNT(SimulatorPlugin):
provides = ('raw_records', 'raw_records_he', 'raw_records_aqmon', 'truth')
data_kind = immutabledict(zip(provides, provides))
def _setup(self):
self.sim = ChunkRawRecords(self.config)
self.sim_iter = self.sim(self.instructions)
def get_instructions(self):
if self.config['fax_file']:
assert not self.config['fax_file'].endswith('root'), 'None optical g4 input is deprecated use EPIX instead'
assert self.config['fax_file'].endswith('csv'), 'Only csv input is supported'
self.instructions = instruction_from_csv(self.config['fax_file'])
else:
self.instructions = rand_instructions(self.config)
def check_instructions(self):
# Let below cathode S1 instructions pass but remove S2 instructions
m = (self.instructions['z'] < - self.config['tpc_length']) & (self.instructions['type'] == 2)
self.instructions = self.instructions[~m]
r_instr = np.sqrt(self.instructions['x']**2 + self.instructions['y']**2)
assert np.all((r_instr<self.config['tpc_radius'])|np.isclose(r_instr,self.config['tpc_radius'])), \
"Interaction is outside the TPC (radius)"
assert np.all(self.instructions['z'] < 0.25), \
"Interaction is outside the TPC (in Z)"
assert np.all(self.instructions['amp'] > 0), \
"Interaction has zero size"
def infer_dtype(self):
dtype = {data_type: strax.raw_record_dtype(samples_per_record=strax.DEFAULT_RECORD_LENGTH)
for data_type in self.provides if data_type != 'truth'}
dtype['truth'] = instruction_dtype + self._truth_dtype
return dtype
def compute(self):
try:
result = next(self.sim_iter)
except StopIteration:
raise RuntimeError("Bug in chunk count computation")
self._sort_check(result[self.provides[0]])
# To accomodate nveto raw records, should be the first in provide.
return {data_type: self.chunk(
start=self.sim.chunk_time_pre,
end=self.sim.chunk_time,
data=result[data_type],
data_type=data_type) for data_type in self.provides}
@export
class RawRecordsFromFax1T(RawRecordsFromFaxNT):
provides = ('raw_records', 'truth')
@export
class RawRecordsFromFaxOpticalNT(RawRecordsFromFaxNT):
def _setup(self):
self.sim = ChunkRawRecords(self.config,
rawdata_generator=wfsim.RawDataOptical,
channels=self.channels,
timings=self.timings,)
self.sim.truth_buffer = np.zeros(10000, dtype=instruction_dtype + optical_extra_dtype
+ self._truth_dtype + [('fill', bool)])
self.sim_iter = self.sim(self.instructions)
def get_instructions(self):
assert self.config['fax_file'].endswith('.root'), 'You need to supply a root file for optical simulation!'
self.instructions, self.channels, self.timings = read_optical(self.config)
@export
@strax.takes_config(
strax.Option('epix_config', track=False, default={}, infer_type=False,
help='Dict with epix configuration'),
strax.Option('entry_start', default=0, track=False, infer_type=False,),
strax.Option('entry_stop', default=None, track=False, infer_type=False,
help='G4 id event number to stop at. If -1 process the entire file'),
strax.Option('fax_config_nveto', default=None, track=True, infer_type=False,),
strax.Option('fax_config_override_nveto', default=None, track=True, infer_type=False,
help='Dictionary with configuration option overrides'),
strax.Option('targets', default=('tpc',), track=False, infer_type=False,
help='tuple with what data to simulate (tpc, nveto or both)')
)
class RawRecordsFromMcChain(SimulatorPlugin):
provides = ('raw_records', 'raw_records_he', 'raw_records_aqmon', 'raw_records_nv', 'truth', 'truth_nv')
data_kind = immutabledict(zip(provides, provides))
gain_model_nv=straxen.URLConfig(
track=True, infer_type=False,
help='nveto gain model, provided by context')
def set_config(self,):
super().set_config()
if 'nveto' in self.config['targets']:
self.config_nveto = deepcopy(self.config)
self.config_nveto.update(straxen.get_resource(self.config_nveto['fax_config_nveto'], fmt='json'))
self.config_nveto['detector'] = 'XENONnT_neutron_veto'
self.config_nveto['channel_map'] = dict(self.config_nveto['channel_map'])
overrides = self.config['fax_config_override_nveto']
if overrides is not None:
self.config_nveto.update(overrides)
to_pe_nv = self.gain_model_nv
self.to_pe_nveto = to_pe_nv
self.config_nveto['gains'] = np.divide((2e-9 * 2 / 2**14) / (1.6e-19 * 1 * 50),
self.to_pe_nveto,
out=np.zeros_like(self.to_pe_nveto),
where=self.to_pe_nveto != 0)
self.config_nveto['channels_bottom'] = np.array([], np.int64)
def get_instructions(self):
"""
Run epix and save instructions as self.instructions_epix
epix_config with all the epix run arguments is passed as a dictionary, where
source_rate must be set to 0 (epix default), since time handling is done outside epix.
epix needs to be imported in here to avoid circle imports
"""
self.g4id = []
if 'tpc' in self.config['targets']:
import epix
epix_config = deepcopy(self.config['epix_config']) # dictionary directly fed to context
epix_config.update({
'detector': self.config['detector'],
'entry_start': self.config['entry_start'],
'entry_stop': self.config['entry_stop'],
'input_file': self.config['fax_file']})
self.instructions_epix = epix.run_epix.main(
epix.run_epix.setup(epix_config),
return_wfsim_instructions=True)
self.g4id.append(self.instructions_epix['g4id'])
log.debug("Epix produced %d instructions in tpc" % (len(self.instructions_epix)))
if 'nveto' in self.config['targets']:
self.instructions_nveto, self.nveto_channels, self.nveto_timings =\
read_optical(self.config_nveto)
if len(self.g4id) > 0:
nv_inst_to_keep = (self.instructions_nveto['_last'] - self.instructions_nveto['_first']) >= 0
self.instructions_nveto = self.instructions_nveto[nv_inst_to_keep]
self.g4id.append(self.instructions_nveto['g4id'])
log.debug("%d instructions were produced in nv" % (len(self.instructions_nveto)))
self.g4id = np.unique(np.concatenate(self.g4id))
self.set_timing()
def set_timing(self,):
"""Set timing information in such a way to synchronize instructions for the TPC and nVeto"""
# If no event_stop is specified set it to the maximum (-1=do all events)
if self.config['entry_stop'] is None:
self.config['entry_start'] = np.min(self.g4id)
self.config['entry_stop'] = np.max(self.g4id) + 1
log.debug('Entry stop set at %d, g4id min %d max %d'
% (self.config['entry_stop'], np.min(self.g4id), np.max(self.g4id)))
# Convert rate from Hz to ns^-1
rate = self.config['event_rate'] / 1e9
# Add half interval to avoid time 0
timings = np.random.uniform((self.config['entry_start'] + 0.5) / rate,
(self.config['entry_stop'] + 0.5) / rate,
self.config['entry_stop'] - self.config['entry_start'])
timings = np.sort(timings).astype(np.int64)
max_time = int((self.config['entry_stop'] + 0.5) / rate)
# For tpc we have multiple instructions per g4id.
if 'tpc' in self.config['targets']:
i_timings = np.searchsorted(np.arange(self.config['entry_start'], self.config['entry_stop']),
self.instructions_epix['g4id'])
self.instructions_epix['time'] += timings[i_timings]
extra_long = self.instructions_epix['time'] > max_time
self.instructions_epix = self.instructions_epix[~extra_long]
log.warning('Found and removing %d epix instructions later than maximum time %d'
% (extra_long.sum(), max_time))
# nveto instruction doesn't carry physical time delay, so the time is overwritten
if 'nveto' in self.config['targets']:
i_timings = np.searchsorted(np.arange(self.config['entry_start'], self.config['entry_stop']),
self.instructions_nveto['g4id'])
self.instructions_nveto['time'] += timings[i_timings]
extra_long = self.instructions_nveto['time'] > max_time
self.instructions_nveto = self.instructions_nveto[~extra_long]
log.warning('Found and removing %d nveto instructions later than maximum time %d'
% (extra_long.sum(), max_time))
def check_instructions(self):
if 'tpc' in self.config['targets']:
# Let below cathode S1 instructions pass but remove S2 instructions
m = (self.instructions_epix['z'] < - self.config['tpc_length']) & (self.instructions_epix['type'] == 2)
self.instructions_epix = self.instructions_epix[~m]
r_instr = np.sqrt(self.instructions_epix['x']**2 + self.instructions_epix['y']**2)
assert np.all((r_instr<self.config['tpc_radius'])|np.isclose(r_instr,self.config['tpc_radius'])), \
"Interaction is outside the TPC (radius)"
assert np.all(self.instructions_epix['z'] < 0.25), \
"Interaction is outside the TPC (in Z)"
assert np.all(self.instructions_epix['amp'] > 0), \
"Interaction has zero size"
assert all(self.instructions_epix['g4id'] >= self.config['entry_start'])
assert all(self.instructions_epix['g4id'] < self.config['entry_stop'])
if 'nveto' in self.config['targets']:
assert all(self.instructions_nveto['g4id'] >= self.config['entry_start'])
assert all(self.instructions_nveto['g4id'] < self.config['entry_stop'])
def _setup(self):
if 'tpc' in self.config['targets']:
self.sim = ChunkRawRecords(self.config)
self.sim_iter = self.sim(
self.instructions_epix,
time_zero=int((self.config['entry_start'] + 0.5) / self.config['event_rate'] * 1e9),
progress_bar=True)
if 'nveto' in self.config['targets']:
self.sim_nv = ChunkRawRecords(self.config_nveto,
rawdata_generator=wfsim.RawDataOptical,
channels=self.nveto_channels,
timings=self.nveto_timings,)
self.sim_nv.truth_buffer = np.zeros(10000, dtype=instruction_dtype + optical_extra_dtype
+ self._truth_dtype + [('fill', bool)])
assert '_first' in self.instructions_nveto.dtype.names, 'Require indexing info in optical ' \
'instruction see optical extra dtype'
assert all(self.instructions_nveto['type'] == 1), 'Only s1 type ' \
'is supported for generating rawdata from optical input'
self.sim_nv_iter = self.sim_nv(
self.instructions_nveto,
time_zero=int((self.config['entry_start'] + 0.5) / self.config['event_rate'] * 1e9),
progress_bar=True)
def infer_dtype(self):
dtype = dict([(data_type, instruction_dtype + self._truth_dtype) if 'truth' in data_type
else (data_type, strax.raw_record_dtype(samples_per_record=strax.DEFAULT_RECORD_LENGTH))
for data_type in self.provides])
return dtype
def compute(self):
log.debug('Full chain plugin calling compute')
if 'tpc' in self.config['targets']:
try:
result = next(self.sim_iter)
except StopIteration:
if self.sim.source_finished():
log.debug('TPC instructions are already depleted')
result = dict([(data_type, np.zeros(0, self.dtype_for(data_type)))
for data_type in self.provides if 'nv' not in data_type])
num_of_results = sum([len(v) for _, v in result.items()])
if num_of_results != 0:
self.sim.chunk_time = self.sim_nv.chunk_time
self.sim.chunk_time_pre = self.sim_nv.chunk_time_pre
else:
raise RuntimeError("Bug in getting source finished")
if 'nveto' in self.config['targets']:
try:
result_nv = next(self.sim_nv_iter)
result_nv['raw_records']['channel'] += self.config['channel_map']['nveto'][0]
except StopIteration:
if self.sim_nv.source_finished():
log.debug('nVeto instructions are already depleted')
result_nv = dict([(data_type.strip('_nv'), np.zeros(0, self.dtype_for(data_type)))
for data_type in self.provides if 'nv' in data_type])
self.sim_nv.chunk_time = self.sim.chunk_time
self.sim_nv.chunk_time_pre = self.sim.chunk_time_pre
else:
raise RuntimeError("Bug in getting source finished")
exist_tpc_result, exist_nveto_result = False, False
for data_type in self.provides:
if 'nv' in data_type:
if 'nveto' in self.config['targets']:
if len(result_nv[data_type.strip('_nv')]) > 0:
exist_nveto_result = True
else:
if len(result[data_type]) > 0:
exist_tpc_result = True
chunk = {}
for data_type in self.provides:
if 'nv' in data_type:
if exist_nveto_result:
chunk[data_type] = self.chunk(start=self.sim_nv.chunk_time_pre,
end=self.sim_nv.chunk_time,
data=result_nv[data_type.strip('_nv')],
data_type=data_type)
# If nv is not one of the targets just return an empty chunk
# If there is TPC event, set TPC time for the start and end
else:
dummy_dtype = self._truth_dtype if 'truth' in data_type else strax.raw_record_dtype()
if exist_tpc_result:
chunk[data_type] = self.chunk(start=self.sim.chunk_time_pre,
end=self.sim.chunk_time,
data=np.array([], dtype=dummy_dtype),
data_type=data_type)
else:
chunk[data_type] = self.chunk(start=0, end=0, data=np.array([], dtype=dummy_dtype),
data_type=data_type)
else:
if exist_tpc_result:
chunk[data_type] = self.chunk(start=self.sim.chunk_time_pre,
end=self.sim.chunk_time,
data=result[data_type],
data_type=data_type)
else:
dummy_dtype = self._truth_dtype if 'truth' in data_type else strax.raw_record_dtype()
if exist_nveto_result:
chunk[data_type] = self.chunk(start=self.sim_nv.chunk_time_pre,
end=self.sim_nv.chunk_time,
data=np.array([], dtype=dummy_dtype),
data_type=data_type)
else:
chunk[data_type] = self.chunk(start=0, end=0, data=np.array([], dtype=dummy_dtype),
data_type=data_type)
self._sort_check([chunk[data_type].data for data_type in self.provides])
return chunk
def source_finished(self):
"""Return whether all instructions has been used."""
source_finished = True
if 'tpc' in self.config['targets']:
source_finished &= self.sim.source_finished()
if 'nveto' in self.config['targets']:
source_finished &= self.sim_nv.source_finished()
return source_finished