医用γ谱仪的稳定性问题

• 作 者: 王乃善
• 出 处: 核电子学与探测技术
• 发表日期: 1981年03期
• 关键词: γ谱仪 稳定性 器件性能 探头 单道分析器 光电倍增管 免疫 温度系数 工作点 较好

FT1901型医用γ谱仪与FT-603型井型γ闪烁探头配合,已被医院普遍用于放射免疫测量。由于其灵敏度高,收到了较好的效果。 对免疫测量最重要的是稳定性问题。影响稳定性的主要原因是元器件性能,但使用调整对稳定性也有重要影响。本文主要讨论一些影响稳定性的因素和改善稳定性的方法,并给出一些部件稳定性数量级的概念,以便仪器操作者正确使用和维修调整。

FT1901 medical gamma spectrometer and FT-603 well-type gamma scintillation probe with the hospital has been widely used for radioimmunoassay. Because of its high sensitivity, received good results. The most important issue with immunoassays is stability. The main reason for the stability is component performance, but the use of adjustments also has a significant impact on stability. This article focuses on some of the factors that affect stability and how to improve stability, and gives some concepts of component stability on the order of magnitude for proper use and maintenance by instrumentation operators.