A study on the use of lead fluoride for electromagnetic calorimetry

Author

Woody, Craig L. ; Kierstead, J.A. ; Levy, P.W. ; Stoll, S. ; Weingarten, A.B. ; Anderson, D.F. ; Ramberg, E.J. ; Kuno, Y. ; Macdonald, J.A. ; Konaka, A. ; Hutcheon, D.A.

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

Volume

40

Issue

4

fYear

1993

fDate

8/1/1993 12:00:00 AM

Firstpage

546

Lastpage

551

Abstract

The properties of lead fluoride as a Cerenkov material for use in electromagnetic calorimetry were studied. A prototype calorimeter module consisting of a 5×5 array of 2.1-cm×2.1-cm×18.5-cm crystals was built and tested in a test beam. Results are given on energy resolution, shower size, and e/π separation for electrons and pions in the range of 1-4 GeV. The light output was found to give ⩾1000 photoelectrons per MeV in good quality crystals and to provide useful signals down to as low as 32 MeV. Measurements were made on radiation damage in lead fluoride using ⁶⁰Co gamma rays and high energy ionizing particles, as well as on thermoluminescence after irradiation. It was found that only modest damage occurs up to a level of ~30 krad in large, calorimeter size crystals, and that the damage can be easily removed by optical bleaching

Keywords

Cherenkov counters; calorimeters; electron detection and measurement; gamma-ray effects; ion beam effects; lead compounds; luminescence of inorganic solids; meson detection and measurement; thermoluminescence; 1 to 4 GeV; 30×10³ rad; 32 MeV; Cerenkov material; PbF₂; electromagnetic calorimetry; electron/pion separation; energy resolution; gamma rays; ionizing particles; light output; optical bleaching; shower size; thermoluminescence; Calorimetry; Crystalline materials; Crystals; Electrons; Energy measurement; Energy resolution; Mesons; Particle measurements; Prototypes; Testing;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.256613

Filename

256613