header image 2

University of Southern California


Publications
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)
 
    website last updated 5/31/2007