关于临床兆伏级光子和电子束中水热计的稳态漂移条件
On the steady-state drift conditions of a water calorimeter in clinical megavoltage photon and electron beams.
作者信息
Kubo H, Brown D E
出版信息
Med Phys. 1984 May-Jun;11(3):317-20. doi: 10.1118/1.595505.
We have investigated the characteristic behavior of a water calorimeter in a clinical environment where the temperature is not strictly controlled. Since the ambient temperature plays a crucial role in the successful operation of a calorimeter, its effects were closely monitored. The results were compared with theoretical predictions based on a simple model of heat transfer by conduction. They were found useful in analyzing the radiation dose measurements. In particular, a relationship between the absorbed dose and the pre- and postirradiation thermal drifts was examined. Finally, some suggestions are made concerning the desirable conditions under which a water calorimeter may be operated.
我们研究了水热计在温度未严格控制的临床环境中的特性行为。由于环境温度在热计的成功运行中起着关键作用，因此对其影响进行了密切监测。将结果与基于简单传导热传递模型的理论预测进行了比较。发现它们在分析辐射剂量测量方面很有用。特别是，研究了吸收剂量与辐照前后热漂移之间的关系。最后，就水热计运行的理想条件提出了一些建议。
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