LRO Cosmicwatch muon detectors coincidence mode radioactive test source experiment results 050526-060526

[andrew....@googlemail.com]

I have successfully replicated the experiment in the Comic Watch manual
showing change in rates measured as result of radioactive test source
(radioactive rock from ebay) on top of detectors in coincidence mode with
various amounts of lead between top of top detector and radioactive test
source.

Not sure what was happening at last meeting, where I seemed to be getting
reduced detections with the test source. Possibly that was due to my using a
larger test source and no lead, which, as has been suggested by other
previously, might have swamped the detectors.

Andy

Andrew Thornett
www.astronomy.me.uk