? temperature effects on GM tube.
2 months 2 weeks ago #6173 by FSM19
Yesterday and today there has been a significant drop in counts in the late afternoon, and a higher level round midday. Here in Portugal we are experiencing extreme heat and also forest fires. There are two fires burning locally, and temperatures have peaked at 39C both days. Could the temperature be affecting the count?
2 months 1 week ago #6175 by FSM19
2 months 6 days ago #6177 by jnissen
Based on some of the data I have looked at for remote sensors there does not appear to be a trends that would imply heat changes the counts appreciably. I have had my sensor in the heat, in a window sill, cold, etc... and it's still relatively stable on the trend charts.
2 months 5 days ago #6180 by Radslug
1 month 3 weeks ago - 1 month 3 weeks ago #6188 by Bert490
There is good evidence of light affecting certain glass GM tubes, particularly the M4011 tube and J305 that are used for the popular GQ-Electronics detectors. GQ has added blackout material to recent batches, but it remains unclear what the root cause is, due to the tube OEM being opaque in both name and materials (see https://www.gqelectronicsllc.com/forum/topic.asp?TOPIC_ID=9862 and other posts at that site). Even with the blackout covering, some tubes remain light-sensitive.
Last edit: 1 month 3 weeks ago by Bert490.
The following user(s) said Thank You: FSM19
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