ibis_isgr_deadtime

The executable ibis_isgr_deadtime calculates dead times resulting from count rates in ISGRI modules, taking into account the instrument configuration.

ISGRI dead time is due to the combined effect of:

• Instrument count rate,
• Veto count rate (from the lateral, or lateral+bottom (according to IC file) shielding),
• Calibration count rate,
• Compton coincidences, if Compton mode is on.

Note that the problem of the VETO swapping on-board is corrected almost every time through IC file: IBIS-VETO-MOD. VETO also sometimes has a wrong level; this will be corrected in the future. The 3 cases when it happened are in the IC file GNRL-INTL-BTI with the BTI_TYPE: ISGRI_VETO_LEVEL.

Table: ibis_isgr_deadtime parameters included into the main script.

Name	Name	Type	Description
(in the main script)	(executable)
SCW1_veto_mod	icDOL	string	DOL of the IC file for VETO model and width of Compton window default `` ''