Hi all,

A group of us are currently doing a project designing a satellite. On the satellite there will be an X-Ray Imaging camera instrument.

The instrument has the followings specs:

Energy Range - 5 - 200 keV

Energy Res - 3 - 5 keV

Field of View - 20deg x 40 deg

Energy, time and pos - 8 bits resolution

Angular res - 2 degrees

Spatial res - 20km at 550 km altitude

max count rate 10^5 counts/sec

Array - 40 x 10 CZT detectors

Measurement period - 10 secs before and after event.

Image mode/Energy Mode - 1second

Mass - 32.3kg

Envelope - 30 x 50 x 50cm

Power - 14W

Basically i need to find what storage is needed if this camera is continuously on for 45 minutes. I am a bit confused about some of the terms. What is 40 x 10 CZT detectors? Does it mean we have 10 detectors of 40 width each or one detector of 40 x 10?

How can i relate the counts per second to the number and area of detectors and then the resolution.

If someone coudl shed some ligth that would be great.

Thanks