测井技术2013，Vol.37Issue(1)：28-30,3.
靶膜对中子管中子产额的影响分析
The Influence of Target Film Properties on the Yield of Neutron Tube
郤方华 1王志全 1陈路 1丁柱 1崔杰1
作者信息
摘要
Abstract
We analyzed three factors influencing the neutron yield of neutron tube which are the materials, thickness and film coating procedures. The target film is generally made of pure titanium or zirconium, the purity of them is required to reach 99. 99%. The higher the purity, the greater adsorptive capacity to the tritium, and the higher probability of deuterium-tritium reaction. The Ti-Mo alloy is a good substitute for one of them as target film. The coating procedure is a key factor. During the coating process, the background vacuum should be higher than 10~4 Pa, the purity of argon should reach 99. 99%. Meanwhile, the target base should be heated to 400 ℃ and supplied with 400 DC voltage so that the absorptive ability of the film enhances and the target surface can not be oxidized. The target film thickness should be 1. 0 - 1. 5 mg/cm2 so that it can not only provide the effect depth for deuterium-tritium reaction, but also economize the usage of deuterium and tritium gas. In practice, selecting the high purity material as target film, a good coating procedure and reasonable film thickness should be given more attention in order to obtain high neutron yield.关键词
中子管/靶膜材料/镀膜工艺/靶膜厚度/中子产额Key words
neutron tube/ target membrane material/ target membrane technique/ target membrane thickness/ neutron yield分类
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郤方华,王志全,陈路,丁柱,崔杰..靶膜对中子管中子产额的影响分析[J].测井技术,2013,37(1):28-30,3.
