In-orbit background of X-ray microcalorimeters and its effects on observations

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Table 1

Background levels in CCDs, silicon drift detectors and microcalorimeters in different orbits.

Mission	Detector name	Detector type	Orbit	Background
				[cts cm^-2 s^-1]

Suzaku	XIS	CCD (BI)	LEO	0.048
Suzaku	XIS	CCD (FI)	LEO	0.016
Suzaku	XRS	Microcalorimeters	LEO	0.05
Origin	X-IFU	Microcalorimeters	LEO	0.043
Simbol-X	LED^*	Silicon drift	LEO	0.002
XMM	EPIC	pn-CCD (BI)	HEO	0.078
XMM	EPIC	MOS-CCD (FI)	HEO	0.026
SRG	eRosita^*	CCD (BI)^**	L2	0.07
ATHENA	X-IFU	Microcalorimeters	L2	0.31
ATHENA best	X-IFU^*	Microcalorimeters	L2	0.05
IXO	WFI^*	Silicon drift	L2	0.01

Notes. Data in bold are simulated.

^(*)

Detector surrounded by an electron-shielding material.

^(**)

Value obtained without pattern analysis.

Reference. Lotti et al. (2012); Perinati et al. (2011); Lumb et al. (2002); Hauf et al. (2009); Kuntz et al. (2008).

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