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Database: Current Contents(tm) from ISI
Copyright 1992, 1995 Institute for Scientific Information, all rights reserved.
Author: JUDGE-D-L; DAYBELL-M-D; HOFFMAN-J-R; GRUNTMAN-M-A;
OGAWA-H-S*; SAMSON-J-A-R
Title: AN OPTICS FREE SPECTROMETER FOR THE EXTREME-ULTRAVIOLET
Source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION
A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,
vol. 347, issue 1-3, (AUG 11, 1994) : pp. 472-474.
Abstract: The optics-free spectrometer is a photon spectrometer. It
provides the photon spectrum of a broadband source by converting
energy E into electrons of energy E', according to the Einstein
relation, E' = E - E(i). E(i) is the ionization threshold of the
gas target of interest (any of the rare gases are suitable) and
E is the incoming photon energy. As is evident from the above
equation, only a single order spectrum is produced throughout
the energy range between the first and second ionization
potentials of the rare gas used. Photons with energy above the
second ionization potential produce two groups of electrons, but
they are readily distinguished from each other. This feature
makes this device extremely useful for determining the true
spectrum of a continuum source or a many line source. The
principle of operation and the laboratory results obtained with
a representative configuration of the optics-free spectrometer
are presented.
Authors Abstract: N
English Abstract: Y
Language: eng
Pub. Type: ARTICLE
References: 8
ISSN: 0168-9002
Subject Cat: RY: NUCLEAR SCIENCE AND TECHNOLOGY. UP: PHYSICS, PARTICLES
AND FIELDS. OA: INSTRUMENTS AND INSTRUMENTATION. XQ:
SPECTROSCOPY.
ISI Order #: PD429 (For ordering reprints from ISI) |
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