The effect of guard ring on leakage current and spectroscopic performance of TlBr planar detectors

Alireza Kargar; Hadong Kim; Leonard Cirignano; Kanai Shah

doi:10.1117/12.2065908

4 September 2014 The effect of guard ring on leakage current and spectroscopic performance of TlBr planar detectors

Alireza Kargar, Hadong Kim, Leonard Cirignano, Kanai Shah

Proceedings Volume 9215, Radiation Detectors: Systems and Applications XV; 92150E (2014) https://doi.org/10.1117/12.2065908
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

Four thallium bromide planar detectors were fabricated from materials grown at RMD Inc. The TlBr samples were prepared to investigate the effect of guard ring on device gamma-ray spectroscopy performance, and to investigate the leakage current through surface and bulk. The devices’ active area in planar configuration were 4.4 × 4.4 × 1.0 mm³. In this report, the detector fabrication process is described and the resulting energy spectra are discussed. It is shown that the guard ring improves device spectroscopic performance by shielding the sensing electrode from the surface leakage current, and by making the electric filed more uniform in the active region of the device.

Citation Download Citation

Alireza Kargar, Hadong Kim, Leonard Cirignano, and Kanai Shah "The effect of guard ring on leakage current and spectroscopic performance of TlBr planar detectors", Proc. SPIE 9215, Radiation Detectors: Systems and Applications XV, 92150E (4 September 2014); https://doi.org/10.1117/12.2065908

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available