Brief introduction

HoldUp-55It is an instrument used for measuring the retention of nuclear materials in pipelines and glove boxes in nuclear material production enterprises, reprocessing plants, retired nuclear facilities, etc.HoldUp-55Composed of a telescopic long rod, detector (including collimator), calibration device, data processing terminal, data processing software, etc., as shown in the figure1and2The detector adopts a two inch designNaIThe detector and scale device can simulate point sources, line sources, and surface sources. The data terminal is equipped with a complex and precise measurement model, which ensures measurement accuracy through the combination of the scale device and the calculation model.HoldUp-55The typical measurement spectrum is shown in the figure3Typical measurement accuracy is shown in the table1.