Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
STUDY OF AFTERGLOW IN X-RAY PHOSPHORS FOR USE ON FAST-FRAMING CHARGE-COUPLED-DEVICE DETECTORS
Autore:
SHEPHERD JA; GRUNER SM; TATE MW; TECOTZKY M;
Indirizzi:
HOLOGIC INC WALTHAM MA 02154 PRINCETON UNIV,DEPT PHYS PRINCETON NJ 08544 THOMAS JEFFERSON UNIV,DEPT RADIOL PHILADELPHIA PA 19107
Titolo Testata:
Optical engineering
fascicolo: 11, volume: 36, anno: 1997,
pagine: 3212 - 3222
SICI:
0091-3286(1997)36:11<3212:SOAIXP>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONVERSION; EFFICIENCY; RADIATION;
Keywords:
RARE-EARTH PHOSPHORS; X-RAY IMAGING; AFTERGLOW; CCD DETECTORS; PERSISTENCE; PHOSPHORESCENCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
J.A. Shepherd et al., "STUDY OF AFTERGLOW IN X-RAY PHOSPHORS FOR USE ON FAST-FRAMING CHARGE-COUPLED-DEVICE DETECTORS", Optical engineering, 36(11), 1997, pp. 3212-3222

Abstract

There is a need in the x-ray imaging community for phosphors with short persistence (l/l(o) < 0.1 to 0.01% in less than 0.5 ms). Persistence limits a detector's performance by defining the minimum xray exposure discernible for a given time after a previous exposure, by ghosting of previous images, and by limiting the dynamic range. We characterizethe persistence and relative light output of 25 commercially available and specially synthesized phosphors, five of which are gadolinium oxysulfide (Gd2O2S) with five different activators, The phosphor's ''practical efficiency'' is presented for use with either front-or rear-illuminated CCDs. The persistence of these phosphors is characterized as a function of x-ray intensity, exposure time, and, when possible, impurity concentrations. Each phosphor's usefulness for particular x-ray imaging experiments is also discussed. (C) 1997 Society of Photo-Optical Instrumentation Engineers.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 07:29:02