Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Design of synchrotron light source and its beamline dedicated to dual-energy x-ray computed tomography
Autore:
Torikoshi, M; Tsunoo, T; Endo, M; Noda, K; Kumada, M; Yamada, S; Soga, F; Hyodo, K;
Indirizzi:
Natl Inst Radiol Sci, Inage Ku, Chiba 2638555, Japan Natl Inst Radiol SciChiba Japan 2638555 Inage Ku, Chiba 2638555, Japan High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan High Energy Accelerator Res Org Tsukuba Ibaraki Japan 3050801 0801, Japan
Titolo Testata:
JOURNAL OF BIOMEDICAL OPTICS
fascicolo: 3, volume: 6, anno: 2001,
pagine: 371 - 377
SICI:
1083-3668(200107)6:3<371:DOSLSA>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
CORONARY ANGIOGRAPHY; RADIATION;
Keywords:
x-ray computed tomography; synchrotron radiation; monochromatic x ray; electron density;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Engineering, Computing & Technology
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Torikoshi, M Natl Inst Radiol Sci, Inage Ku, Anagawa 4-9-1, Chiba 2638555,Japan Natl Inst Radiol Sci Anagawa 4-9-1 Chiba Japan 2638555 Japan
Citazione:
M. Torikoshi et al., "Design of synchrotron light source and its beamline dedicated to dual-energy x-ray computed tomography", J BIOMED OP, 6(3), 2001, pp. 371-377

Abstract

A synchrotron light source dedicated to medical applications has been designed at National Institute of Radiological Sciences. The storage ring, withcircumference of 80 m, is designed for acceleration of 2.3 GeV and a stored current of 420 mA. It is equipped with two multipole wigglers to produce sufficient photon flux in a hard x-ray region required for medical applications. The purposes of the synchrotron light source are clinical performanceof medical diagnoses clinically and research and development relating withmedical applications. One of the most interesting applications for us is dual-energy x-ray computed tomography (CT). It gives the information about electron density of human tissue. The information plays an important role inadvancing heavy-ion radiotherapy of cancers. Electron density can be derived from attenuation coefficients measured by different energy x rays. In this paper, a practical method of the dual-energy x-ray CT with synchrotron radiation is proposed with the theoretical consideration. The primitive experiment using monochromatic x rays emitted from radioisotopes proved the procedure of analysis mentioned here effective to derive electron densities from linear attenuation coefficients for two x rays of a different energy. The beamline dedicated to dual-energy x-ray CT is also proposed. It has a multipole wiggler as a light source and it mainly consists of a dual crystal monochromator and a rotating filter for attenuating photon flux of x rays and two-dimensional detector. (C) 2001 Society of Photo-Optical Instrumentation Engineers.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 15/07/20 alle ore 08:22:19