@article{oai:repo.qst.go.jp:00046724,
 author = {Hirano, Yoshiyuki and Nitta, Munetaka and Inadama, Naoko and Nishikido, Fumihiko and Yoshida, Eiji and Murayama, Hideo and Yamaya, Taiga and 平野 祥之 and 新田 宗孝 and 稲玉 直子 and 錦戸 文彦 and 吉田 英治 and 村山 秀雄 and 山谷 泰賀},
 issue = {1},
 journal = {Radiological physics and technology},
 month = {Aug},
 note = {Our purpose in this work was to evaluate the performance of a 4-layer depth-of-interaction (DOI) detector composed of GSO crystals by use of a position-sensitive photomultiplier tube (PMT) with a super-bialkali photocathode (SBA) by comparing it with a standard bialkali photocathode (BA) regarding the ability to identify the scintillating crystals, energy resolution, and timing resolution. The 4-layer DOI detector was composed of a 16 × 16 array of 2.9 × 2.9 × 7.5 mm(3) GSO crystals for each layer and an 8 × 8 multi-anode array type position-sensitive PMT. The DOI was achieved by a reflector control method, and the Anger method was used for calculating interacting points. The energy resolution in full width at half-maximum (FWHM) at 511 keV energy for the top layer (the farthest from the PMT) was improved and was 12.0 % for the SBA compared with the energy resolution of 12.7 % for the BA. As indicators of crystal identification ability, the peak-to-valley ratio and distance-to-width ratio were calculated; the latter was defined as the average of the distance between peaks per the average of the peak width. For both metrics, improvement of several percent was obtained; for example, the peak-to-valley ratio was increased from 1.78 (BA) to 1.86 (SBA), and the distance-to-width ratio was increased from 1.47 (BA) to 1.57 (SBA). The timing resolution (FWHM) in the bottom layer was improved slightly and was 2.4 ns (SBA) compared with 2.5 ns (BA). Better performance of the DOI detector is expected by use of a super bialkali photocathode.},
 pages = {57--66},
 title = {Performance evaluation of a depth-of-interaction detector by use of position-sensitive PMT with a super-bialkali photocathode.},
 volume = {7},
 year = {2013}
}