Table 1: JEM-X main characteristics. (Quoted sensitivities are actual values for two JEM-X units.)
Mask diameter 535 mm
Detector diameter 250 mm
Mask-detector distance 3 401 mm
Energy-range 3-35 keV
Energy resolution $ \frac{\Delta E}{E} = 0.40\times{\left(\frac{1}{E[{\rm keV}]} + \frac{1}{60}\right)}^{1/2} $
Angular resolution 3.35'
Field of view (diameter) 4.8$^\circ$ Fully coded
  7.5$^\circ$ Half response
  13.2$^\circ$ Zero response
Point source location 15'' (for a 10$\sigma$ source)
Narrow line detection sensitivity $1.9\times 10^{-5}$ phot cm-2 s-1 @ 6 keV
Isolated on-axis source $8.5\times 10^{-5}$ phot cm-2 s-1 @ 30 keV
For a 3$\sigma$ detection in a 106 s observation  
Continuum sensitivity $1.2\times 10^{-5}$ phot cm-2 s-1 keV-1@ 6 keV
Isolated on-axis source $1.3\times 10^{-5}$ phot cm-2 s-1 keV-1 @ 30 keV
For a 3$\sigma$ detection in a 106 s observation  
Time resolution 122 $\mu $s


Source LaTeX | All tables | In the text