- Subject: Re: Spurious TLD results
- Date: Mon, 14 Sep 1998 08:07:40 CDT
- A1-type: DOCUMENT
- Importance: normal
========================================================================== Sandy Perle wrote in part. > > I do not agree that these unexplained doses can be attributed to > non-ionizing radiation. In all of my years, dating back to 1971, I > have never seen a LiF, LiBO, CaF or CaSO TL element respond in > any fashion, to non-ionizing radiation.............. M. Malaxos wrote: I remember a situation about 12 years ago where a significant dose was said to be recorded over a period of about a week using TLD's attached to the front of the picture tube of modern television receivers by some researchers in Bombay. I suspected that this may have been a phantom dose generated by the change in the electrostatic or electric field when the receiver was switched on. Has any one detected this effect with some of the earlier TLD material. ========================================================================= TVs used to have two problems with ionizing radiation. The first was low energy x-rays given off from the high voltage vaccum tubes. The second was low energy x-rays emitted from the face of the picture tube. Both were caused by Bremsstrahlung. Both problems have been pretty well rectified in modern TVs. Ray Carroll carrollrg@lmus.com