A Radiation Tolerant Light Pulser for Particle Physics Applications

TL;DR

This paper presents a radiation-tolerant LED pulser designed for particle physics detector calibration, demonstrating robustness against high levels of proton and gamma radiation.

Contribution

The development and testing of a radiation-hardened LED pulser suitable for use in high-radiation environments in particle physics experiments.

Findings

The pulser remains functional after exposure to 6.7×10^{13} protons/cm^2.

It withstands gamma doses up to 5 Mrad without performance degradation.

Component characteristics are compared before and after irradiation.

Abstract

A light emitting diode (LED) pulser has been developed that can be used for tests or calibration of timing and amplitude sensitivity of particle physics detectors. A comparative study is performed on the components and pulser output characteristics before and after application of 800 MeV protons and cobalt-60 gammas. This device is demonstrated to be tolerant to fluences up to 6.7 $\times$ 10$^{13}$ 800-MeV-p/cm2 and gamma doses up to 5 Mrad.