Re: [amsat-bb] gamma ray detector

["Don Woodward" <dbwoodw@xxxxxxxxxx>]

William:

Looks like a cool kit. It says it can sense gama waves and high-energy beta
waves - it doesn't mention alpha waves, neutrons or x-rays.

Did you see the additional info on http://www.rentron.com/geiger.htm

> It can be used to determine the radioactivity caused by
> computer monitors, television sets, microwave oven leakage,
> gas furnaces, etc. It can even be used as a lightning detector
> during thunderstorms. It has a resolution of 6.67 microrems/hr
> and has a range of 0 to about 3433 microrems/hr.

> Radiation Levels:
> Low radiation is below 10 urems/hr.
> Normal background radiation is in the range of 10 to 79 urems/hr.
> High background radiation is in the range of 80 to 129 urems/hr.
> Unhealthy background radiation is in the range of 130 to 149 urems/hr.
> Safe only in short term exposure levels are 150 urems/hr to 249 urems/hr.
> Dangerous radiation levels are above 250 urems/hr.

73's

Don Woodward
KD4APP
AMSAT 33535
kd4app@amsat.org
http://kd4app.webhop.org


----- Original Message -----
From: "William Leijenaar" <pe1rah@hotmail.com>
To: <amsat-bb@AMSAT.Org>
Sent: Wednesday, November 27, 2002 04:16
Subject: [amsat-bb] gamma ray detector


Hi AMSATs,

I have here an radioactivity (not ham activity:-) detector what will be
build into an satellite. It is an kit with an little geiger tube.
For info look at: http://www.velleman.be/kits/k2645.htm

I will build it into an metal box to shield it for the alpha and beta
particles, and the gamma rays will be the only rays that can reach the tube
(or not ?)

What I like to know is if this geiger tube can also be triggered by other
kinds of radioation like x-ray (rontgen) or other higher energy particles
from the sun.

How many particle hits per time can be expected in an 800km high orbit
around the earth ?

73 de PE1RAH, William
---





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