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Post by squawkinggoose on Jan 26, 2014 4:58:11 GMT
Below is an example of a Rad Chart of our station which is feeding the NETC.com system. There are nine different charts all fed by the data from our Geiger Muller Counter (GQ GMC-300E) which costs about $140. Chart Membership is another $19.95/year. Notice the sample chart at bottom, radiation spiking at the center. Our reading was 3111 CPM on January 18, 2014 at exactly 8:20:26 PM MST. Looking at the weather for our area the winds were 16MPH gusting to 32MPH from the west (270 degrees). There are other radiation spikes shown on the same chart at a later date. The question I pose is what happened to my radiation spike? Where did it go? It stayed around for about four hours and then pffffft.......gone. Not that I am unhappy that its gone, but ionized radiation particles can take years, decades to decay. Now the GMC monitors read and record all radiation (Alpha, Beta, Gamma) If the monitor was only reading Gamma radiation from a passing airmass and high winds then maybe stations to the east of us will receive the spikes too. After an airmass containing radiation passes over our station here, our CPM's go back to normal....about 25 CPM. Feel free to comment.....
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Post by Ex_Nuke_Troop on Jan 26, 2014 6:19:21 GMT
SG there are already some resources to help get you on your way to understanding what your meter is reading in this section. fukushimatruths.freeforums.net/board/32/nuclear-knowledge-basicsI'm not pointing you there to blow you off, but it's a process of learning to gain the information you need and nobody is going to be able to dig into it for you at the level of your present understanding and need to know like you will. It can be a daunting task to learn for some folks, and I'm NOT satisfied that I know enough about it to be able to explain it to someone yet. I'm also finding that my personal knowledge base is not only rusted, most of my knowledge base is actually outdated, so some of my difficulty with this stuff is unlearning and then learning anew. If in your search you uncover resources that help YOU understand what you need to know, PLEASE SHARE ... others doubtless will want to know at some point.
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Post by Ex_Nuke_Troop on Jan 26, 2014 6:21:50 GMT
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Post by vicky13 on Jan 27, 2014 3:02:17 GMT
Hi squawkinggose,,
Those are very strange spikes you are getting. Are you running via a PI to NETC, or running their software on a PC?
If you are running on a PC via software,, go to the NETC site and get the latest version, they reported earlier versions had bugs.
I have a GMC-320 and had strange CPM counts on the old software, but got my PI and a 2nd GC the 300E, so didn't need to run it anymore. Wanted to have 2 GC's (now 3, LOL), so I could use the 320 for field work, and to verify readings of my 300E.
It could also be the GM tube in your GMC300E that is flakey. I suggest contacting Harlan at the NETC forum and post the same there.
Is the GC near anything that gives high counts? I looked back at your charts and you spiked for awhile but now it's leveled off. Did you power off/reset your GC?
A 3k plus cpm count could come from something like Fiesta Ware,, or even vaseline beads, might want to scan the area/environment around your GMC300E.
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