Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Update of default eta value using empirical high trigger rate data #188

Merged
merged 1 commit into from
Oct 28, 2023
Merged

Update of default eta value using empirical high trigger rate data #188

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 2 additions & 1 deletion stix/idl/processing/livetime/stx_livetime_fraction.pro
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -130,6 +130,7 @@
; 03-dec-2018, ECMD (Graz), change of calculation including eta and tau
; 03-mar-2022, ECMD (Graz), update of eta and tau values and definition tau is now only readout time
; 21-apr-2022, ECMD (Graz), added pileup correction parameter
; 17-oct-2023, ECMD (Graz), update of default eta value using empirical high trigger rate data
;
;-
function stx_livetime_fraction, triggergram, det_select, tau_array = tau_array, eta_array=eta_array, error=error
Expand All @@ -140,7 +141,7 @@ function stx_livetime_fraction, triggergram, det_select, tau_array = tau_array,

ntrig = (size(/dimension, triggergram.triggerdata ))[0]
default, tau_array, 10.1e-6 + fltarr(ntrig) ;10.1 microseconds readout time per event
default, eta_array, 2.63e-6 + fltarr(ntrig) ;2.63 microseconds latency time per event
default, eta_array, 1.10e-6 + fltarr(ntrig) ;1.1 microseconds latency time per event (best fit May 2023)

beta = stx_pileup_corr_parameter() ; get estimate of pileup correction parameter

Expand Down