Calibration of diamond detectors for dosimetry in beam-loss monitoring

TL;DR

This paper details the calibration and testing procedures for diamond-based detectors used in beam-loss monitoring at high-radiation environments, emphasizing their stability and uniformity.

Contribution

It introduces a comprehensive calibration protocol for diamond detectors and evaluates their performance in a collider setting.

Findings

28 detectors tested with consistent response

Detectors demonstrate stable performance over time

Uniformity of detector response confirmed

Abstract

Artificially-grown diamond crystals have unique properties that make them suitable as solid-state particle detectors and dosimeters in high-radiation environments. We have been using sensors based on single-crystal diamond grown by chemical vapour deposition for dosimetry and beam-loss monitoring at the SuperKEKB collider. Here we describe the assembly and the suite of test and calibration procedures adopted to characterise the diamond-based detectors of this monitoring system. We report the results obtained on 28 detectors and assess the stability and uniformity of response of these devices.