Selected Topics in Ultra-Low Emissivity Alpha-Particle Detection

作者：Gordon Michael S^*; Rodbell Kenneth P; Tang Henry H K; Yashchin Emmanuel; Cascio Ethan W; McNally Brendan D

来源：IEEE Transactions on Nuclear Science, 2013, 60(6): 4265-4274.

DOI：10.1109/TNS.2013.2287459

• Alpha particles
• ionization detectors
• low-background
• Poisson statistics
• protons
• terrestrial neutrons

In an effort to better understand the contribution of terrestrial protons to the counter background, we have developed a model to examine the production of protons, within an ionization counter from the interaction of incident neutrons on the counter material. Results of high energy proton irradiation on an UltraLo-1800 XIA alpha-particle counter are shown which indicate that the active signal discrimination is very effective at rejecting most of the detected events. A Poisson model is described which gives guidance on making appropriate measurement times and acceptance criteria for detectors with a range of backgrounds.

• 出版日期2013-12