Method of Determining Heat Flows to Elements of Cooled Radiation Detectors

This article examines "volume" and "weight" methods of measuring heat flows from the environment to the structural elements of cooled radiation detectors. The sources and ranges of errors made in the determination of heat flow by these two methods are determined. A theoretical-empirical method is proposed to determine heat flow for a specified ambient temperature and a specified level of the liquid phase of the coolant (including the zero level).[PUBLICATION ABSTRACT]