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M1111型β探测器
The M1111 β detector
M1111型β探测器能够测量低能β射线，因其优异的抗力，能够广泛用于环境检测、精密测量、科研等领域。本公司研发的M1111型β探测器主要由端窗光电倍增管、高压电源模块、信号成形电路、闪烁体等组成。
本产品具有简单方便、可靠性高及探测效率高等优点。在出厂前，已经过各项性能测试，接通电源，将输出端与计数单元连接即可使用。
M1111 β detector can measure low energy β ray, because of its excellent anti-interference ability, can be widely used in environmental detection, precision measurement, scientific research and other fields. The M1111 β detector is mainly composed of photomultiplier, high voltage power supply module, signal forming circuit and scintillator .
The product has the advantages of simplicity, high reliability and high detection efficiency. Before leaving the factory, it has been tested in all aspects, connected to the power supply, the output end can be used with the counting unit.
技术参数
（测试环境温度25℃）
参数 | Min. | Typ. | Max | 单位 | |
输入电压/Input voltage | +11.5~+12.5 | V | |||
输入电流/Input current | 70 | mA | |||
有效窗口直径/Effective area | Φ10 | mm | |||
输出脉冲逻辑/Output pulse logic | 正向TTL | -- | |||
输出脉冲幅度/Output pulse amplitude | 5±0.5 | V | |||
输出脉冲宽度/Output pulse width | 500±100 | ns | |||
本底计数率/Background counting rate | 3 | S-1 | |||
观测计数率1)/Observed counting rate | 225k~280k | S-1 | |||
1小时不稳定性2)/1 hour instability | 0.2 | 0.4 | % | ||
工作环境/ work environment | 温度/Temperature | +5~+40 | ℃ | ||
湿度/Humidity | 90%RH | -- | |||
存放环境/ Storage environment | 温度/Temperature | -20~+50 | ℃ | ||
湿度Humidity | 93%RH | -- | |||
注：
1) 使用60μCi的14C源测试，源距离探测器3mm。
2) 1小时不稳定性测试过程：探测器采集的计数率在10.0±0.5ks-1，设置每个数据采集时间为4min，每组数据累积采集15个数据（1小时），计算每组数据的各个值与均值的偏差的值，连续测试3组（3小时），取3组中的值为1小时工作不稳定性测试值。
产品应用
环境监测 Pollution monitoring
精密测量 Precise measurement
外形尺寸图
