日盲型光电倍增管的制备及性能研究

Preparation and properties of solar-blind photomultiplier tube

采用Te-Cs为光电阴极,石英玻璃为玻壳材质,使用日盲专用双光源烘箱,成功制备出日盲型光电倍增管(型号:CR340)。对该管进行性能测试,结果表明,该管具有优良的日盲特性,光谱响应截止波长为320nm,阳极输出灵敏度可达到5×10^5A/W(250nm),增益可达到1.3×10^7,寿命1000h以上。提供给国内多家分析仪器厂家(包括北京普析通用仪器有限责任公司,北京海光仪器有限公司等)进行评价试用,均反馈良好。

The photocathode of solar-blind photomultiplier tube is Te-Cs,and the glass tube is synthetic quartz.We use special oven with two lights to prepare solar-blind photomultiplier tube.We test the performance of solar-blind photomultiplier tubes.Results show that CR340 has good solar-blind characteristic,cut-off wavelength at 320 nm,and output sensitivity can reach 5×10^5 A/W(250 nm),and gain can reach 1.3×10^7,and life is more than 1000 h.Solar-blind photomultiplier tubes are evaluated by several domestic analytical instruments manufacturers,all feedback are very good.