Study of a Large NaI(Tl) Crystal

TL;DR

This study investigates how a large NaI(Tl) crystal responds to a positron beam, revealing that nuclear interactions create additional features in the energy spectrum's low-energy tail.

Contribution

It provides experimental data on the response of a large NaI(Tl) crystal to positrons, highlighting the impact of nuclear interactions on the energy spectrum.

Findings

Nuclear interactions cause additional peaks in the low energy tail.

The response of the crystal was characterized using a narrow band positron beam.

The study enhances understanding of detector response for high-resolution scintillation detectors.

Abstract

Using a narrow band positron beam, the response of a large high-resolution NaI(Tl) crystal to an incident positron beam was measured. It was found that nuclear interactions cause the appearance of additional peaks in the low energy tail of the deposited energy spectrum.