Conversion chart for CPM to mSv/h is here: www.mcgill.ca This measurement was made on June 11, 2011 at approx. 1130am PST. It indicates "moderate levels" of radiation. Alert level is considered anything over 100CPM by the radiation network ... www.radiationnetwork.com Radiation background measurement, taken over the course of 10 minutes was 46.4 CPM . ************* statistics Total 10 minute count = 464 = 46.4 CPM Location: Yakima, Washington Coordinates : 46 37 44 N , 120 29 56 W Elevation : 1079 feet Measurement taken: ten mintue long CPM measurement using the "inspector alert" nuclear radiation monitor (geiger counter) from the inspector alert geiger counter manual: "CPM (or CPS) and total counts are the most direct methods of measurement; mR/hr (or uSv/hr) is calculated using a conversion factor optimized for Cesium-137, so this mode is less accurate for other radionuclides, unless you have calibrated the "geiger counter" for a specific radionuclide using an appropriate source. It is more appropriate to measure alpha and beta activity using CPM than using mR/hr. Conversion for alpha and beta emitters is calcuated differently, and the "geiger counters" reading in mR/hr may not be accurate."
Share on del.icio.us
Share on digg
Share on Technorati
Share on reddit
Share on Yahoo!
Share on Facebook