An evaluation of the new compact hybrid photodiodes R7110U-07/40 from Hamamatsu in high-speed light detection mode

Authors
Mirzoyan, R Ferenc, D Lorenz, E
Citation
R. Mirzoyan et al., An evaluation of the new compact hybrid photodiodes R7110U-07/40 from Hamamatsu in high-speed light detection mode, NUCL INST A, 442(1-3), 2000, pp. 140-145
Citations number
7
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
442
Issue
1-3
Year of publication
2000
Pages
140 - 145
Database
ISI
SICI code
0168-9002(20000311)442:1-3<140:AEOTNC>2.0.ZU;2-H
Abstract
The main parameters of hybrid photodiodes (HPD) are constantly improving. I n the new 20 mm diameter HPDs from Hamamatsu an avalanche diode (AD) serves as anode. Due to high gain of the used ADs the HPDs show a total gain of 6 -8 x 10(4) at nominal HV. This allows one to use HPDs with very fast low-no ise voltage amplifiers and to detect fast pulses (down to the single photoe lectron level) with very good amplitude resolution. Of special interest are HPDs of the type R7110U-40 with GaAsP photocathode which provide a quantum efficiency of similar to 40% in maximum at similar to 500 nm. Results on t he evaluation of the above-mentioned HPDs and their comparison with HPDs fr om INTEVAC will be presented. (C) 2000 Elsevier Science B.V. All rights res erved.