Study of SVOM/ECLAIRs inhomogeneities in the detection plane below 8 keV and their mitigation for the trigger performances

Open Access

Table 3

False-trigger rate resulting from the heat-pipe noise in the image trigger (IMT), the result from a simulation combining the simulated CXB with 1.74 × 10⁵ s of TVAC data.

Timescale (s)	20.48	40.96	81.92	163.84	327.68	655.36	1310.72
4–8 keV	0.091% (8/8750)	0.069% (3/4352)	0.092% (2/2170)	0% (0/ 1084)	2.399% (13 / 542)	60.886% (165/271)	99.259% (134/135)

4–120 keV	0.126% (11/8750)	0% (0/4352)	0%(0/ 2170)	0% (0/ 1084)	0% (0/542)	0% (0/271)	4.444% (6/135)

Notes. The two lines indicate the fraction of intervals showing a trigger (top) and the numbers from which this fraction is calculated (number of intervals with a trigger divided by number of independent intervals during TVAC).

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