A novel fast response and radiation-resistant scintillator detector for beam loss monitor

TL;DR

This paper presents a new scintillator detector designed for fast response and high radiation resistance, suitable for beam loss monitoring in high luminosity colliders, with promising test results demonstrating its effectiveness.

Contribution

The paper introduces a novel scintillator detector with enhanced radiation resistance and fast response specifically for beam loss monitoring in high luminosity accelerators.

Findings

Good sensitivity to photons from tens of keV to several MeV

Energy resolution of 23% at 60 keV gamma-ray

Successful field test outside an 800 MeV electron storage ring

Abstract

At high luminosity areas, beam loss monitor with fast response and high radiation resistance is crucial for accelerator operation. In this article, we report the design and test results of a fast response and radiation-resistant scintillator detector as the beam loss monitor for high luminosity colliders, especially at low energy regions such as RFQ. The detector consists of a 2 cm*2 cm 0.5 cm LYSO crystal readout by a 6 mm*6 mm Silicon photomultiplier. Test results from various radioactive sources show that the detector has good sensitivity to photons from tens of keV to several MeV with good linearity and energy resolution (23% for 60 keV {\gamma}-ray). For the field test, two such detectors are installed outside of the vacuum chamber shell of an 800 MeV electron storage ring. The details of the test and results are introduced.