Naked Science Forum

General Science => General Science => Topic started by: hasp on 27/01/2006 13:11:06

Title: Satellite Instrumentation
Post by: hasp on 27/01/2006 13:11:06

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

Title: Re: Satellite Instrumentation
Post by: DoctorBeaver on 29/01/2006 10:35:01

Not something I know about but I found this site. It may be helpful.

http://astrophysics.sr.unh.edu/CZT_Home.html