PERFORMANCE OF THE INVERSE-PHOTOEMISSION SPECTROMETER WITH A NEW BANDPASS PHOTON DETECTOR OF NARROW BANDWIDTH AND HIGH-SENSITIVITY

Citation
Y. Ueda et al., PERFORMANCE OF THE INVERSE-PHOTOEMISSION SPECTROMETER WITH A NEW BANDPASS PHOTON DETECTOR OF NARROW BANDWIDTH AND HIGH-SENSITIVITY, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 330(1-2), 1993, pp. 140-143
Citations number
16
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
ISSN journal
01689002
Volume
330
Issue
1-2
Year of publication
1993
Pages
140 - 143
Database
ISI
SICI code
0168-9002(1993)330:1-2<140:POTISW>2.0.ZU;2-O
Abstract
A combination of a SrF2 entrance window and a photomultiplier with the Cu-BeO first dynode coated with KCl film realizes the bandpass photon detector with the FWHM of 0.47 eV centered at 9.43 eV and the sensiti vity improved by about one order of magnitude in comparison with the d etector without the KCl film. The overall energy resolution of the inv erse photoemission spectrometer consisting of an electron gun with a B aO cathode and the new detector has been estimated to be 0.56 eV using polycrystalline Au. Typical counting rate is 10(2)-10(3) counts/(muA s) for unoccupied states near the Fermi level of the Au at an acceptan ce angle of about 0.8pi sr with an Al collecting mirror.