Summary

French members :
P. Colas, D. Attié, D. Bhattacharya, A. Giganon, I. Giomataris

Japanese members :
K. Fujii, T. Fusayasu, K. Kato, M. Kobayashi, T. Mastuda, O. Nitoh, A. Sugiyama, T. Watanabe

References

website

Summary:
Silicon mulitpliers (or MPPC) are new solid state photodetectors manufactured by Hamamatsu (among others) that provide single photon sensitivity and high timing accuracy (about 100 ps). Coupled to innovative mutli-channel ASICs that provide high accuracy charge and time measurements, they permit new detectors (TOF, calorimeters) in High Energy Physics, Nuclear experiments or societal applications (e.g. PET-MRI medical applications or vulcanology).

French members :
C. de la Taille, S. Callier, G. Martin-Chassard, L. Raux, N. Seguin-Moreau

Japanese members :
I. Nakamura, K. Hanagaki, A. Nagaya, W. Ootani, T. Takeshita, M. Yokoyama, K. Yoshimura

References :
[1] K. Miwa et al., "Test experiment for a performance evaluation of a scattered proton detector system for the Sigma-p scattering experiment E40", KEK/J-PARC-PAC 2013-4, http://j-parc.jp/researcher/Hadron/en/pac_1309/pdf/T54_2013-4.pdf [2] J. Fleury et al., "Petiroc and Citiroc: front-end ASICs for SiPM read-out and ToF applications", JINST 9 (2014) C01049

website

Summary :
This is a proposal to start a new series of R&D on liquid xenon as detectors of the gamma ray applied to PET (Positron Emission Tomography) technology by the SUBATECH Laboratory (http://www-subatech.in2p3.fr/en/research/nuclear-and-health/xenon/about), Ecole des Mines de Nantes, and KEK (http://rd.kek.jp/project/LXe/index_e.html). Recently SUBATECH group has established a technology to measure a small ionization signal in liquid xenon by using a dedicated electronics coupled to readout pads though ceramic feedthough connectors. In parallel in Japan new photo sensors for the use in liquid xenon temperature to measure its scintillation light are being developed with finer segmentations; Avalance Photo diode (APD), SiPM, and multi-anode photomultipliers. These new technologies are supported by developments made in a series of R&D ever performed by the SUBATCH-KEK collaboration. The proposal is addressing concrete tests on prototypes located both at KEK and Suabtech; they will focus on the understanding of liquid xenon properties for medical imaging. In parallel, the groups will prepare the next experiment XEMIS2 which will be installed in 2015 at the Nantes hospital to image small animals

French members :
D. Thers, J_P. Cussonneau, J. Masbou, E. Morteau, L. Scotto-Lavina

Japanese members :
S. Mihara, K. Kasami, S. Tanaka, T. Tauchi, T. Saeki

References

website