New method to remove the electronic noise for absolutely calibrating low gain photomultiplier tubes with a higher precision

作者：Zhang Xiaodong^*; Hayward Jason P; Laubach Mitchell A

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2014, 755: 32-37.

DOI：10.1010/j.nima.2014.04.018

• Single photon calibration
• Digitizer
• Photomultiplier tube

A new method to remove the electronic noise in order to absolutely calibrate low gain photomultiplier tubes with a higher precision is proposed and validated with experiments using a digitizer-based data acquisition system. This method utilizes the fall time difference between the electronic noise (about 0.5 ns) and the real PMT signal (about 2.4 ns for Hamamatsu H10570 PMT assembly). Using this technique along with a convolution algorithm, the electronic noise and the real signals are separated very well, even including the very small signals heavily influenced by the electronic noise. One application that this method allows is for us to explore the energy relationship for gamma sensing in Cherenkov radiators while maintaining the fastest possible timing performance and high dynamic range.

• 出版日期2014-8-11