On 2006-08-14, Brad wrote:
Hi,

I bought a used "Radiological Meter" (gamma radiation detector)
recently. Note: I am an electronic service technician. The instrument is in
good condition, but I have no way of knowing if it actually can detect gamma
radiation without a source.

I know some smoke detectors use a radio active "particle". Could this
"particle" be a good source for gamma radiation?

AIUI those sources produce mostly alpha.

If you want gamma try potassium, eg: potassium chloride "No Salt(tm)"
or potash fertiliser etc...

Bye.
Jasen