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REPORT ABUSIVE REPLY
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Message Subject
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Any GLPers own or have access to CDV-715 Geiger Meter? People in Spain are measuring high levels of ionizing radiation with this apparatus.
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Poster Handle
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Anonymous Coward |
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Post Content
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There are several cheap ($100) geiger counters that are the size of a small cell phone, are able to give readings in CPM, uSv/hr, or mR/hr and keep records of readings at any time. Those old Civil Defense bulky yellow monsters that work on one D cell battery won't register any Beta at all, just gamma and x-ray.
Most of those CD 715 measure only in r/hr---takes a very high level of radiation to move the dial much.
Quoting: MarPep Well, thanks for your input, but I think you are missing the entire point of this thread. I am not an expert in radiological survey but I know very well the difference between a Geiger counter and the CDV-715 models, and other models that I have seen showing high readings in the Roentgen/hour range. This is precisely what is intriguing, that there are people in Spain, and now we have one of our own GLP family, that are using these gamma ray detectors, and finding readings of above 0,5 and up to 8 Roentgen/hour, without any discernible source of radiation. If this were one odd guy with and old and battered meter, one could shrug it off, but now there are at least 6 of these old CDV-715 and other models giving high readings, at least that I know of. This is extremely intriguing, to say the least. That's because they're all broken, obsolete pieces of crap. Seriously, anyone standing around near 0.5 - 8 R/hr wouldn't be alive long enough to upload the YouTube video. Those doses are life threatening. I agree the doses would be lethal, no doubts about that, but the question remains, what can trigger a meter of this kind, some of the owners claim they bought them with a recent certificate of calibration, so it means these things aren't broken, but they are reacting to something else. This is what keeps me intrigued. Could be RFI. Don't know how well shielded the internals are, particularly to some of the modern frequencies that were not in use at the time these meters were designed. Microwave and mm wave signals were not present everywhere at the time these were made.
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