Study of position resolution with COPS

Citation
J. Moromisato et al., Study of position resolution with COPS, NUCL INST A, 426(2-3), 1999, pp. 375-384
Citations number
2
Language
INGLESE
art.tipo
Article
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
0168-9002 → ACNP
Volume
426
Issue
2-3
Year of publication
1999
Pages
375 - 384
Database
ISI
SICI code
0168-9002(19990501)426:2-3<375:SOPRWC>2.0.ZU;2-K
Abstract
We describe an optical beam sensing device that can measure transverse disp lacements with accuracy of a few microns. An analog readout prototype with a set of four linear CCD arrays arranged around a square aperture, and illu minated by a cross-hair laser, was built and tested by the authors. Perform ance tests results demonstrate a linearity better than 5 mu m throughout an active transverse range of over 20 mm. The reproducibility of the measurem ents was better than 2 mu m. Long-term stability is 5 mu m. (C) 1999 Elsevi er Science B.V. All rights reserved.