Re: Light Sensitive GM Tube

[mirolies@nbnet.nb.ca (mirolies)]

 >>>>    Any thoughts as to the cause of the phenomenon.   <<<<

Just a thought:

The UV rays produced inside G-M tubes (following ionization and gas
multiplication events) are leading to the counter's complete discharge;
thus, if you have a breach in light-tightness, the tube will produce counts
when exposed to external UV.   

Regards,

  Miroslav

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  Miroslav Lieskovsky                Health Physics Department
  Health Physicist                           Point Lepreau G.S.
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