本工作研究了用于就地测量的可携式HPGeγ谱仪的刻度及应用。所用谱仪的探测器为P型准圆柱形HPGe晶体,其活性区直径为45—50mm,长56mm,对~(60)Co的1332keVγ射线的相对探测效率为19.6%,能量分辨率为2.3keV。采用1986年发表的衰变分支比数据,计算了刻度就地谱仪所必需的两个因子 This work examined the calibration and application of a portable HPGe gamma spectrometer for in-situ measurements. The detector of the spectrometer used is a P-type quasi-cylindrical HPGe crystal whose active region has a diameter of 45-50 mm and a length of 56 mm, a relative detection efficiency of 19.6% for 1332 keV gamma rays of ~ (60) Co and an energy resolution of 2.3 keV . Using the decay branch ratio data published in 1986, two factors necessary for the on-line spectrometer to be calibrated