Results 11 to 20 of about 1,940 (199)

Monte Carlo-calculated perturbation correction factors in clinical proton beams using PHITS [PDF]

Technical Innovations & Patient Support in Radiation Oncology
Background: Accurate absolute dosimetry is essential for achieving high-precision proton beam therapy. Consequently, a comprehensive characterization of the ionization chamber’s response properties is necessary.
Hiromu Ooe, Keisuke Yasui, Yuya Nagake, Kaito Iwase, Yuri Kasugai, Mai Tsutsumi, Yuri Fukuta, Shiyu Hori, Hidetoshi Shimizu, Naoki Hayashi   +9 more
doaj   +3 more sources

Overview of PHITS Ver.3.34 with particular focus on track-structure calculation [PDF]

EPJ Nuclear Sciences & Technologies
This paper presents the latest updates on PHITS, a versatile radiation transport code, focusing specifically on track-structure models. Track structure calculations are methods used to simulate the movement of charged particles while explicitly ...
Ogawa Tatsuhiko, Hirata Yuho, Matsuya Yusuke, Kai Takeshi, Sato Tatsuhiko, Iwamoto Yosuke, Hashimoto Shintaro, Furuta Takuya, Abe Shin-ichiro, Matsuda Norihiro, Sekikawa Takuya, Yao Lan, Tsai Pi-En, Ratliff Hunter N., Iwase Hiroshi, Sakaki Yasuhito, Sugihara Kenta, Shigyo Nobuhiro, Sihver Lembit, Niita Koji   +19 more
doaj   +3 more sources

Influence of forehead gap size on eye protection provided by lead eyewear worn over prescription glasses: A Monte Carlo study [PDF]

Medical Physics, Volume 53, Issue 11, November 2026.
Abstract Background Due to exposure to high levels of scattered ionizing radiation, interventional radiology (IR) physicians have an elevated risk of radiation‐induced eye injuries and cataracts. Previous studies have evaluated the protective effects of regular lead glasses and recommended measures to improve radiation protection for the eyes. However,
Ryota Shindo, Masaki Fujisawa, Keisuke Yamamoto, Kodai Sagehashi, Yohei Inaba, Koichi Chida   +5 more
wiley   +2 more sources

True coincidence summing correction factor for point source geometry with PHITS

Nuclear Engineering and Technology, 2023
In this study, it has been shown that the true coincidence summing correction factor can be obtained for the first time using the PHITS Monte Carlo program.
Esra Uyar
doaj   +2 more sources

Feasibility of convection‐enhanced delivery of unlabeled 225Ac for glioblastoma: Transport, dosimetry, and clonogenic survival modeling [PDF]

Medical Physics, Volume 53, Issue 8, August 2026.
Abstract Background Glioblastoma (GB) is an aggressive primary brain tumor with local recurrence rates exceeding 90% and a five‐year survival rate of approximately 5%. Standard treatments such as surgical resection, external beam radiotherapy (EBRT), and chemotherapy often leave residual tumor cells that are resistant to therapy.
Maram El Sabri, Leyla Moghaddasi, Puthenparampil Wilson, Frank Saran, Eva Bezak   +4 more
wiley   +2 more sources

Integrating measurement and simulation for evaluation of patient‐specific whole‐body dosimetry in clinical BNCT [PDF]

Medical Physics, Volume 53, Issue 5, May 2026.
Abstract Background Boron neutron capture therapy (BNCT) is a treatment modality that utilises high intensity neutron beam in combination with a boron drug to target cancer cells at the cellular level. Despite decades of research in this field, there are very few reports on out‐of‐field patient dose of BNCT.
Ryo Kakino, Naonori Hu, Akinori Sasaki, Mai Nojiri, Yuki Yoshino, Satoshi Takeno, Teruhito Aihara, Nishiki Matsubayashi, Takushi Takata, Hiroki Tanaka, Keiji Nihei, Koji Ono   +11 more
wiley   +2 more sources

Assessing the influence of microdosimetric formalism on calculations of relative biological effectiveness in carbon ion radiotherapy [PDF]

Precis Radiat Oncol
Precision Radiation Oncology, EarlyView.
Shannon Hartzell, Keith M. Furutani, Alessio Parisi, Tatsuhiko Sato, Chris J. Beltran   +4 more
wiley   +2 more sources

Features of accelerator-based neutron source for boron neutron capture therapy calculated by particle and heavy ion transport code system (PHITS)

AIP Advances, 2022
Accelerator-based neutron sources have been developed and installed in recent decades for boron neutron capture therapy (BNCT) in several clinical facilities.
Yusuke Matsuya, Tamon Kusumoto, Yoshie Yachi, Yuho Hirata, Misako Miwa, Masayori Ishikawa, Hiroyuki Date, Yosuke Iwamoto, Shigeo Matsuyama, Hisanori Fukunaga   +9 more
doaj   +2 more sources

Multi‐fidelity Monte Carlo fusion for BNCT dose calculation using a dual‐branch network [PDF]

Medical Physics, Volume 53, Issue 9, September 2026.
Abstract Background Boron neutron capture therapy (BNCT) is a binary radiotherapy that selectively kills tumor cells. Its clinical implementation relies on Monte Carlo (MC)‐based treatment planning systems, which are time‐consuming and limit clinical workflow efficiency.
Leiming Li, Xin Hong, Yongquan Wang, Gan Huang, Zhiqiang Wu, Yingjie Xiao, Hiroki Tanaka, Hiroshi Watabe   +7 more
wiley   +2 more sources

First evaluation of a heteroepitaxial diamond ionization chamber operating at low voltage for diagnostic X‐ray dosimetry [PDF]

Medical Physics, Volume 53, Issue 3, March 2026.
Abstract Background Heteroepitaxial diamond has recently gained attention as a radiation detector material due to its wide bandgap, radiation hardness, and near‐tissue equivalence. Despite these advantages, its use as a solid‐state ionization chamber for diagnostic X‐ray dosimetry has not yet been established.
Kiyomitsu Shinsho, Koji Koyama, Keitaro Hitomi, Mitsuhiro Nogami, Osamu Maida, Toshiyuki Onodera, Kanata Kikkawa, Shimma Hashimoto, Yuta Hirai, Yusuke Koba, Ako Haga, Daiki Maruyama, Seong‐Woo Kim   +12 more
wiley   +2 more sources