Share Email Print
cover

Proceedings Paper

Edge reclamation in position-sensitive photomultiplier tubes
Author(s): Les Nakae; Klaus Ziock
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We have investigated the performance of a position- sensitive, gamma-ray detector based on a CsI(Na) scintillator coupled to a Hamamatsu R3292 Position-Sensitive Photomultiplier Tube. The R3292 has an active area 10.0 cm in diameter. Utilization of the full active area of the photocathode is a goal that has been previously unrealized due to edge effects. Initial measurements with a 0.75 cm thick CsI(Na) crystal indicate that the performance starts to degrade as one reaches a radius of only 3.5 cm, reducing the active area by 60 percent. Measuring the anode wires we have found that this fall off is not solely due to crystal edge effects, but rather is inherent to the tube crystal system. In this paper we describe the results of our measurements and how good performance can be maintained across a full 10cm of the tube face through the use of a few additional electronics channels.

Paper Details

Date Published: 19 October 1999
PDF: 10 pages
Proc. SPIE 3768, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics, (19 October 1999); doi: 10.1117/12.366581
Show Author Affiliations
Les Nakae, Lawrence Livermore National Lab. (United States)
Klaus Ziock, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 3768:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics
Ralph B. James; Richard C. Schirato, Editor(s)

© SPIE. Terms of Use
Back to Top