@article{oai:repo.qst.go.jp:00047122, author = {Sakurai, Hiroshi and itoh, Fumitake and Hirano, Yoshiyuki and Nitta, Munetaka and Suzuki, Kosuke and Kato, Daisuke and Yoshida, Eiji and Nishikido, Fumihiko and Wakizaka, Hidekatsu and Kanai, Tatsuaki and Yamaya, Taiga and 櫻井 浩 and 平野 祥之 and 新田 宗孝 and 吉田 英治 and 錦戸 文彦 and 脇坂 秀克 and 金井 達明 and 山谷 泰賀}, issue = {22}, journal = {Physics in medicine and biology}, month = {Oct}, note = {Positron annihilation spectroscopy (PAS) spectra of biological tissue in 11C irradiation are reported and spatial resolution coefficient of positron emission tomography (PET) obtained from the PAS spectrum is discussed for 11C irradiation. A PAS spectrum of the biological tissue with water is the same as that of the water pool phantom in 11C irradiation. However, a PAS spectrum of the biological tissue with less water differs from that of the water pool phantom. The PET spatial resolution coefficient depends on the kind of biological tissue. However, the PET spatial resolution coefficient, 0.00243 ± 0.00014, can be used as a common value of maximum limit.}, pages = {7031--7038}, title = {Positron annihilation spectroscopy of biological tissue in 11C irradiation}, volume = {59}, year = {2014} }