随着石油测井技术的发展,井下仪器也不断更新,对耐高温光电倍增管的需求与日俱增。GDB-30型光电倍增管就是一种耐高温的具有半透明SbKNa端面窗光电阴极的光电倍增管。其光电阴极有效直径为23mm,光谱响应范围为3000—6500A,峰值波长4000A,有11级铜铍材料的盒栅型倍增极,管子外径为28mm,总长度为120mm。GDB-30型高温光电倍增管高温性能稳定,结构牢固,耐振动冲击性能良好,是一种较 With the development of oil logging technology, downhole instruments are constantly updated, and the demand for high temperature photomultiplier tubes is increasing day by day. The GDB-30 photomultiplier tube is a high-temperature photomultiplier tube with a translucent SbKNa window-face photocathode. The photocathode has an effective diameter of 23 mm, a spectral response range of 3000-6500 A, a peak wavelength of 4000 A, and a cascade dynode of eleven-grade beryllium copper with an outer diameter of 28 mm and a total length of 120 mm. GDB-30-type high temperature photomultiplier tube high temperature performance and stability, solid structure, good vibration and impact resistance, is a more