TY - GEN
T1 - Thermal neutron imaging with PIN photodiode line scanner and Eu-doped LiCaAlF6 scintillator
AU - Totsuka, D.
AU - Yanagida, T.
AU - Fukuda, K.
AU - Kawaguchi, N.
AU - Fujimoto, Y.
AU - Yokota, Y.
AU - Yoshikawa, A.
PY - 2011/1/1
Y1 - 2011/1/1
N2 - Thermal neutron imaging using Si PIN photodiode line scanner and Eu-doped LiCaAlF6 crystal scintillator has been developed. The pixel dimensions of photodiode are 1.18 mm (width) x 3.8 mm (length) with 0.4 mm gap and the module has 192 channels in linear array. The emission peaks of Eu-doped LiCaAlF6 after thermal neutron excitation are placed at 370 and 590 nm, and the corresponding photon sensitivities of photodiode are 0.04 and 0.34 A/W respectively. Polished scintillator blocks with a size of 1.18 mm (Width) x 3.8 mm (length) x 5.0mm (thickness) were wrapped by several layers of Teflon tapes as a reflector and optically coupled to the photodiodes by silicone grease. JRR-3 MUSASI beam line emitting 13.5 meV thermal neutrons with the flux of 8 x 105 n/cm2s was used for the imaging test. As a subject for imaging, a Cd plate was moved at the speed of 50 mm/s perpendicularly to the thermal neutron beam. Analog integration time was set to be 416.6 μs, then signals were converted by a delta-sigma A/D converter. After the image processing, we successfully obtained moving Cd plate image under thermal neutron irradiation using PIN photodiode line scanner coupled with Eu-doped LiCaAlF6 scintillator.
AB - Thermal neutron imaging using Si PIN photodiode line scanner and Eu-doped LiCaAlF6 crystal scintillator has been developed. The pixel dimensions of photodiode are 1.18 mm (width) x 3.8 mm (length) with 0.4 mm gap and the module has 192 channels in linear array. The emission peaks of Eu-doped LiCaAlF6 after thermal neutron excitation are placed at 370 and 590 nm, and the corresponding photon sensitivities of photodiode are 0.04 and 0.34 A/W respectively. Polished scintillator blocks with a size of 1.18 mm (Width) x 3.8 mm (length) x 5.0mm (thickness) were wrapped by several layers of Teflon tapes as a reflector and optically coupled to the photodiodes by silicone grease. JRR-3 MUSASI beam line emitting 13.5 meV thermal neutrons with the flux of 8 x 105 n/cm2s was used for the imaging test. As a subject for imaging, a Cd plate was moved at the speed of 50 mm/s perpendicularly to the thermal neutron beam. Analog integration time was set to be 416.6 μs, then signals were converted by a delta-sigma A/D converter. After the image processing, we successfully obtained moving Cd plate image under thermal neutron irradiation using PIN photodiode line scanner coupled with Eu-doped LiCaAlF6 scintillator.
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U2 - 10.1109/NSSMIC.2011.6154514
DO - 10.1109/NSSMIC.2011.6154514
M3 - Conference contribution
AN - SCOPUS:84858665710
SN - 9781467301183
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 342
EP - 346
BT - 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
Y2 - 23 October 2011 through 29 October 2011
ER -