用镭源&gamma;射线标定静电计

用镭源γ射线标定静电计

摘要: 用镭盐溶液标定静电计,操作环节多,并且至少重复三次,三天才能完成。为快速、准确地标定,提出一种新的标定方法。仪器在标定后可立即投入使用。并且,避免了处置放射性废液的问题。文中通过分析静电计标定和测氡的原理,在等游离电流效应的基础上提出'氡当量'原理,确立了新的对比测量法。介绍'氡当量'值的求算,并论证了它的准确性。讨论影响固体镭源标定的因素和标定的准确性。最后,对方法的安全作了论证,并提出防护要求。

Abstract: Calibrating electrometer by a solution of radium salt takes more steps of operation which have to be repeated at least three times.It will take at least three days.For a quick and exact calibration, a new method is provided.By this method the instrument can be put into use as soon as it has been calibrated and a process which deals with waste solution of radioactivity can be avoided.
Finally, we have advanced a 'radon equivalent' orineiple accoreing to the equivalent current of ionization, and a new comparison measurement is established.