[Portable small size X-ray dosimeter DER-01M designed for dose control and its intensity in X-ray diagnostics].

Described in the paper is a portable small-size X-ray dosimeter DER-0.1 M designed by the Research Institute for Introscopy, Research Production Amalgamation "Spectr", for monitoring the dose and its intensity in the manufacturing and exploitation of general-purpose and specialized X-ray units. A flat-parallel ionizing chamber is used in the device as a radiation detector. The related technical characteristics are contained in the paper.