TY - GEN
T1 - 4π field of view active collimation imager
AU - Lee, Taewoong
AU - Lee, Wonho
PY - 2012
Y1 - 2012
N2 - Mechanical collimation commonly uses the photoelectric effect to reconstruct the radiation images. Electronic collimation (i.e., Compton camera) using Compton scattering has been developed to reconstruct radiation images without utilizing mechanical collimators. In general, these kinds of instrument for radiation imaging are used individually, or in order to increase the quality of imaging and radiation detection efficiency, the combination method of each imaging from individual instrument is chosen. In this work, however, we developed the active collimation method including 4π field of view (FOV), which is a new collimation technique using two collimation methods simultaneously without additional detection modules. The 4π FOV active collimation detector consisted of a bismuth germanate (BGO) scintillator detector, a mechanical collimator and five detectors composed of CsI(Na) scintillator. The whole detection module formed a cubic pattern to detect radiation from all incident directions. Therefore, the radiation detection efficiency of the developed device was approximately 7∼8-fold higher than that of the previously developed system.
AB - Mechanical collimation commonly uses the photoelectric effect to reconstruct the radiation images. Electronic collimation (i.e., Compton camera) using Compton scattering has been developed to reconstruct radiation images without utilizing mechanical collimators. In general, these kinds of instrument for radiation imaging are used individually, or in order to increase the quality of imaging and radiation detection efficiency, the combination method of each imaging from individual instrument is chosen. In this work, however, we developed the active collimation method including 4π field of view (FOV), which is a new collimation technique using two collimation methods simultaneously without additional detection modules. The 4π FOV active collimation detector consisted of a bismuth germanate (BGO) scintillator detector, a mechanical collimator and five detectors composed of CsI(Na) scintillator. The whole detection module formed a cubic pattern to detect radiation from all incident directions. Therefore, the radiation detection efficiency of the developed device was approximately 7∼8-fold higher than that of the previously developed system.
UR - http://www.scopus.com/inward/record.url?scp=84881578213&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84881578213&partnerID=8YFLogxK
U2 - 10.1109/NSSMIC.2012.6551135
DO - 10.1109/NSSMIC.2012.6551135
M3 - Conference contribution
AN - SCOPUS:84881578213
SN - 9781467320306
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 409
EP - 411
BT - 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
T2 - 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
Y2 - 29 October 2012 through 3 November 2012
ER -