Progress of Cryogenics and Isotopes Separation , ISSN: 1582-2575
2004, Volume 7, Issue 13+14

Tritium Contaminated Surface Monitoring with a Solid-State Device

Abstract

The low energy of betas makes tritium difficult to detect. However, there are several methods used in tritium detection, such as liquid scintillation and ionization chambers. Tritium on or near a surface can be also detected using proportional counter and, recently, solid state devices.
The paper presents our results in the design and achievement of a surface tritium monitor using a PIN photodiode as a solid state charged particle detector to count betas emitted from the surface. That method allows continuous, real-time and non-destructively measuring of tritium.