论文标题
SIPM阅读气态TPC的前端电气,用于中微子双β衰减搜索
Front-end-Electronics for the SiPM-readout gaseous TPC for neutrinoless double beta decay search
论文作者
论文摘要
我们已经开发了一个专用的前端电子板,用于高压Xenon气体时间投影室,用于中微子双β衰变。通过使用SIPM检测电致发光光子来读取电离信号。董事会通过DC耦合从56〜SIPM读取信号,并以5 ms/s的速度记录波形,其动态范围高达7,000个光子/200 ns。 SIPM偏置电压由板提供,可以针对每个SIPM进行调整。为了校准和监视SIPM增益,额外的辅助ADC测量1个光子等效的暗电流。获得的性能满足了中性s中性双β衰减搜索的要求。
We have developed a dedicated front-end-electronics board for a high-pressure xenon gas time projection chamber for a neutrinoless double-beta decay search. The ionization signal is readout by detecting electroluminescence photons with SiPM's. The board readout the signal from 56~SiPM's through the DC-coupling and record the waveforms at 5 MS/s with a wide dynamic range up to 7,000 photons/200 ns. The SiPM bias voltages are provided by the board and can be adjusted for each SiPM. In order to calibrate and monitor the SiPM gain, additional auxiliary ADC measures 1 photon-equivalent dark current. The obtained performance satisfies the requirement for a neutrinoless double-beta decay search.