论文标题
信号数字过滤器的TROITSK NU-MAS探测器读数电子设备的校准
Calibration of Troitsk nu-mass detector readout electronics by signal digital filters
论文作者
论文摘要
我们介绍了信号数字化模式下检测器电子设备的调整和校准的结果。实验的目的是在tritium beta-decay中寻找可能的无菌中微子签名。读出的电子设备在直接示波器模式下起作用，该模式需要以最小化噪声和能量分辨率的目标来优化时间框架。我们使用具有非常低积分电容器的7像素硅漂移检测器（SDD）和CMOS电荷敏感前置放大器。放大器形成缓慢上升的输出形状，并在脉冲序列模式下运行。 125 MHz ADC数字化信号。使用FE55和AM241伽马源的校准数据，我们检查了三角形和梯形数字过滤器，以获得最佳的噪声和能量分辨率性能。我们还在检查区分输出信号的选项。
We present the results of tuning and calibration of the detector electronics in the signal digitization mode. The goal of the experiment is to search for a possible sterile neutrino signature in tritium beta-decay. The read-out electronics work in direct oscilloscope mode, which requires to optimize time frame the with the goal to minimize noise and energy resolution. We use a 7-pixel silicon drift detector (SDD) and a CMOS charge sensitive preamplifier with very low integration capacitor. Amplifier forms a slowly rising output shape and operates in pulse-reset mode. The 125 MHz ADC digitizes the signals. Using calibration data from Fe55 and Am241 gamma sources we check triangular and trapezoid digital filters to obtain the best noise and energy resolution performance. We are also examining the option to differentiate the output signal.
