Energy calibration of large underwater detectors using stopping muons

TL;DR

This paper introduces a method for calibrating large underwater detectors by using stopping cosmic-ray muons, leveraging their path length to determine energy and validate detector simulations.

Contribution

It proposes a novel calibration technique based on muon stopping points and signal measurements, improving accuracy and simulation validation for underwater detectors.

Findings

Method effectively relates muon energy to path length.

Simulations confirm the method's potential accuracy.

Provides a new calibration approach for large underwater detectors.

Abstract

We propose to use stopping cosmic-ray muons in the energy calibration of planned and deployed large underwater detectors. The method is based on the proportionality between the incident muon energy and the length of the muon path before it stops. Simultaneous measurements of the muon path and the amplitude of the signal from the photomultiplier tubes allow a relation between the energy deposited in the sensitive volume of the detector and the observed signal to be derived, and also provide a test of detector simulations. We describe the proposed method and present the results of simulations.