Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Performance of CdTe, HPGe and NaI(Tl) Detectors for Radioactivity Measurements

Published

Author(s)

A Perez-Andujar, Leticia Pibida

Abstract

The characteristics and performances of the NIST High Purity Germanium (HPGe), Sodium Iodide (NaI(Tl)) and Cadmium Telluride (CdTe) gamma-ray detectors were studied. The efficiencies, the minimum detectable activities and the energy resolutions each were measured and compared. The data were analyzed using different software packages. The measurements were performed in a low background radiation environment using calibrated point sources. The CdTe detector showed a higher energy resolution than the NaI(Tl) detector but a lower efficiency than both the HPGe and NaI(Tl) detectors. This makes it a suitable detector only for relatively high activity measurements restricted to the 35 keV to 200 keV energy range.
Citation
Performance of CdTe, HPGe and NaI(Tl) Detectors for Radioactivity Measurements

Keywords

CdTe, gamma-ray detection, HPGe detectors, NaI(T1)

Citation

Perez-Andujar, A. and Pibida, L. (2008), Performance of CdTe, HPGe and NaI(Tl) Detectors for Radioactivity Measurements, Performance of CdTe, HPGe and NaI(Tl) Detectors for Radioactivity Measurements (Accessed February 21, 2024)
Created October 16, 2008