Letter Re: Test Sources for Radiation Meters–The Cesium Source
James: RE: > I also didn’t buy the use of a smoke detector to test a CDV survey meter so I checked it out. Didn’t show squat since that meter is relatively insensitive. Oh, I also tried a smoke detector with my Digilert-100 from http://www.seintl.com . This detector reads Alpha, Beta, Gamma and X-rays. Nada. BTW, the Digilert has available some neat software that I use to track background radiation on a daily basis. Normal background here in Colorado is between 20 and 39 counts per minute. The unit also has an alarm level that can be set to any …