Authors

R. M. Gaume; S. Lam; M. Gascon; W. Setyawan; S. Curtarolo;R. S. Feigelson

Comments

Authors: contact us about adding a copy of your work at [email protected]

Abbreviated Journal Title

Rev. Sci. Instrum.

Keywords

TRAPPED EXCITON LUMINESCENCE; ELECTRONIC BAND-STRUCTURES; HYDROSTATIC-PRESSURE; NON-PROPORTIONALITY; ENERGY RESOLUTION; UNIAXIAL-STRESS; TEMPERATURE; NONPROPORTIONALITY; NAI(TL); BGO; Instruments & Instrumentation; Physics, Applied

Abstract

We describe the design and operation of a unique hydraulic press for the study of scintillator materials under isostatic pressure. This press, capable of developing a pressure of a gigapascal, consists of a large sample chamber pressurized by a two-stage hydraulic amplifier. The optical detection of the scintillation light emitted by the sample is performed, through a large aperture optical port, by a photodetector located outside the pressure vessel. In addition to providing essential pressure-dependent studies on the emission characteristics of radioluminescent materials, this apparatus is being developed to elucidate the mechanisms behind the recently observed dependency of light-yield nonproportionality on electronic band structure. The variation of the light output of a Tl:CsI crystal under 511-keV gamma excitation and hydrostatic pressure is given as an example.

Journal Title

Review of Scientific Instruments

Volume

84

Issue/Number

1

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

6

WOS Identifier

WOS:000314729100068

ISSN

0034-6748

Download

Share

COinS
 

Accessibility Statement

This item was created or digitized prior to April 24, 2027, or is a reproduction of legacy media created before that date. It is preserved in its original, unmodified state specifically for research, reference, or historical recordkeeping. In accordance with the ADA Title II Final Rule, the University Libraries provides accessible versions of archival materials upon request. To request an accommodation for this item, please submit an accessibility request form.