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InFOCuS

InFOCuS Characteristics

MIRRORS
Focal length
Energy bandpass
Number & diameter
Effective area (on-axis
  point source)
Field-of-view (FWHM)
Angular resolution (FWHM)
Point spread function (FWHM)
8 m
20 to 40 keV
1, 40 cm
~100 cm
2

10 arcmin
< 2 arcmin
< 4 mm

65 to 80 keV
3, 30 cm
~150 cm
2

2 to 3 arcmin
0.5 to 1 arcmin
1 to 2 mm
DETECTORS
Subsystems
Detector material
Detector active area
Pixel pitch
Active shielding
Collimator FO
Energy bands
Energy resolution (FWHM)
Efficiency
Background inside the
  PSF (cnts/s)
3-sigma spectral sensitivity
  (mCrabs in 12 hours)
LDB sensitivity (mCrabs
  in 21 day flight)
4 detector/shield units
CdZnTe (CZT)
2.43 x 2.43 x 0.2 cm
380 microns or 10 arcsec
3 cm CsI
10
0 FWHM
20 to 40 keV
< 2 keV
100%
7.8 x 10
-4

~100

20







65 to 80 keV
< 5 keV
> 95%
3.4 x 10
-4

700

90

GONDOLA
Pointing mechanism

Pointing stability
Pointing accuracy
Pointing knowledge
Mirror to detector alignment
  knowledge (realtime)
Power
Weight
3 gyros & momentum
  wheels
±5 arcsec RMS
< ±15 arcsec
~1 arcsec
40 microns (1 arcsec)

300 Watts
1500 kg


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NASA Official: Takashi Okajima
Last Updated: Thursday, 09-Jul-2015 09:50:00 EDT