Search found 2 matches
- Wed Dec 21, 2011 5:16 pm
- Forum: Geiger Counter
- Topic: SBM-20 and X-Rays
- Replies: 5
- Views: 14883
Re: SBM-20 and X-Rays
Does the count change if you put a piece of shielding material in between the TV and the geiger counter? Maybe a thin sheet of metal? I've tried hand holding (not grounded) a large sheet of thin aluminium (approx 15" square). It stops the count. The static charge on the face of the tube was st...
- Wed Dec 21, 2011 11:29 am
- Forum: Geiger Counter
- Topic: SBM-20 and X-Rays
- Replies: 5
- Views: 14883
SBM-20 and X-Rays
While wandering around with my recently completed Geiger kit I held it in front of a CRT based TV (Sony Trinitron 27" flat screen). With the TV on there is a definite increase in counts. Turning the TV off returns the count to normal background instantly. I was assuming that any X-Rays from the...