James Chadwick (1891–1974): from the neutron discovery to neutron beams for medicine
Authors: Masahiro Endo, Kazuhiro Arai
Content type: Editorial
Published: 17 February 2026 Pages: 1 – 7
Selection of Radiological Physics and Technology Awards 2025
Authors: Nobuyuki Kanematsu, Katsuhiro Ichikawa, et al.
Content type: Editorial
Published: 11 February 2026 Pages: 8 – 9
Correction and utilization of the washout effect in range-verification PET for particle therapy
Authors: Chie Toramatsu, Iwao Kanno, et al.
Content type: Review Article
Open access
Published: 05 January 2026 Pages: 10 – 20
Utilization of extended-reality technologies in the field of medical radiation
Authors: Toshioh Fujibuchi, Reiji Katayama
Content type: Review Article
Published: 02 February 2026 Pages: 21 – 44
Prostate cancer and benign prostatic hyperplasia lesions segmentation using diffusion kurtosis imaging, T2*, and R2* mapping with U-Net++ algorithm
Authors: Hamide Nematollahi, Fariba Alikhani, et al.
Content type: Research Article
Published: 15 October 2025 Pages: 45 – 55
New estimation of S-coefficients for radionuclides C-11, N-13, O-15, and F-18 in male and female computational mesh-type phantom using DoseCalcs code
Authors: Tarik El Ghalbzouri, Randa Yerrou, et al.
Content type: Research Article
Published: 18 October 2025 Pages: 56 – 67
Evaluation of a Monte Carlo-based independent dose calculation system for brain stereotactic radiotherapy using a robotic radiosurgery system
Authors: Kaito Sakai, Yujiro Nakajima, et al.
Content type: Research Article
Published: 16 October 2025 Pages: 68 – 76
Optimizing lens and organ dose evaluation in head CT examinations using monte carlo simulation: influence of gantry tilt and scan range
Authors: Yasushi Katsunuma, Kaoru Sato, et al.
Content type: Research Article
Open access
Published: 15 December 2025 Pages: 77 – 90
Measurement of gamma-ray dose rate distribution at the Kindai university reactor using the thermoluminescent properties of BeO ceramic plates
Authors: Leo Takahashi, Genichiro Wakabayashi, et al.
Content type: Research Article
Open access
Published: 30 October 2025 Pages: 91 – 100
Development of radioprotective side shield attached to radioprotective glasses for reducing eye lens dose of endoscopists during endoscopic retrograde cholangiopancreatography: a phantom study
Authors: Kotaro Fukushima, Kazuhiro Yamaguchi, et al.
Content type: Research Article
Open access
Published: 03 November 2025 Pages: 101 – 113
Estimation of organ and effective doses in High-Resolution Cone-Beam Computed Tomography (HR-CBCT) during cerebral angiography
Authors: Hitoshi Miyazaki, Toshioh Fujibuchi, et al.
Content type: Research Article
Published: 31 October 2025 Pages: 114 – 124
Monte Carlo-based dosimetric comparison of indigenous and commercial 106Ru/106Rh eye plaques using a mathematical eye phantom
Authors: Vandana Shrivastava, Arghya Chattaraj, et al.
Content type: Research Article
Open access
Published: 18 November 2025 Pages: 125 – 135
Deep learning-based support system for alignment classification and correction guidance in postoperative total knee arthroplasty lateral radiographs
Authors: Kazuhiro Ogasawara, Shinya Ohwada, et al.
Content type: Research Article
Published: 25 November 2025 Pages: 136 – 145
Comparison of quantitative angiographic image quality using high kV and low kV technique, a retrospective and phantom study
Authors: Panuwat Pattum, Woranan Kirisattayakul, et al.
Content type: Research Article
Published: 08 December 2025 Pages: 146 – 156
Influence of applicator models on dose distribution in gynecologic high-dose-rate brachytherapy
Authors: Yukako Kishigami, Tomohiro Ono, et al.
Content type: Research Article
Published: 04 December 2025 Pages: 157 – 164
Inter-institutional variability in kidney dosimetry during 177Lu-DOTATATE therapy in Japan
Authors: Noriaki Miyaji, Kenta Miwa, et al.
Content type: Research Article
Published: 09 December 2025 Pages: 165 – 175
The role of cone beam CT in personalization of bladder cancer radiotherapy
Authors: Geanina-Mirela Catona, Loredana G. Marcu
Content type: Research Article
Published: 15 December 2025 Pages: 176 – 189
Investigation of radiation doses to the eyes of patients and medical staff during a videofluoroscopic swallowing study: a phantom study
Authors: Thunyarat Chusin, Naoko Kashihara, et al.
Content type: Research Article
Published: 24 December 2025 Pages: 190 – 196
Effect of deep learning reconstruction on arm-induced artifacts compared with hybrid iterative reconstruction and filtered-backprojection in abdominal CT
Authors: Suppakit Wongvit-olarn, Minchanat Satja, et al.
Content type: Research Article
Published: 24 December 2025 Pages: 197 – 206
Improvement of blooming artifact in coronary CT image using high-resolution kernel and image-based noise reduction
Authors: Masato Shimada, Katsuhiro Ichikawa, et al.
Content type: Research Article
Published: 29 December 2025 Pages: 207 – 216
Evaluation of dose rate and gantry speed variations in volumetric modulated Arc therapy optimization algorithms for a modern linear accelerator
Authors: Venugopal Sundaram, David Khanna, et al.
Content type: Research Article
Published: 05 January 2026 Pages: 217 – 232
Implementation of deep learning with convolutional block attention module for detecting collimator rotation errors in stereotactic radiosurgery quality assurance
Authors: Le Tien Dat, Pham Quang Trung
Content type: Research Article
Published: 05 January 2026 Pages: 233 – 242
Investigation of relative biological effectiveness for protons, carbon and oxygen ion beams by DNA damage calculations in a fractal fibroblast cell geometry
Authors: Z. Ahmadvand, S. Z. Kalantari
Content type: Research Article
Published: 31 January 2026 Pages: 243 – 258
Dual-encoder 3D transformer-based U-Net with temporal attention for non-mass enhancement segmentation in breast dynamic contrast-enhanced MRI
Authors: Tomoki Kosugi, Ryohei Nakayama, et al.
Content type: Research Article
Open access
Published: 08 January 2026 Pages: 259 – 269
Evaluating the utility of simulated respiratory-gated four-dimensional computed tomography in internal-target-volume-based treatment planning for irregular breathing patterns
Authors: Satoki Hinai, Keisuke Usui, et al.
Content type: Research Article
Published: 09 January 2026 Pages: 270 – 283
Impact of the locking function of hybrid inverse planning optimization on the treatment plan quality of intracavitary/interstitial brachytherapy for locally advanced cervical cancer
Authors: Tatsuya Inoue, Kotaro Iijima, et al.
Content type: Research Article
Published: 20 January 2026 Pages: 284 – 292
Regional mammography dosimetry in South India: establishing modality and thickness-specific diagnostic reference levels
Authors: Adhimoolam Saravana Kumar, Sudhir Kumar, et al.
Content type: Research Article
Published: 28 January 2026 Pages: 293 – 302
Clinically relevant effective dose k-factors for brain CT derived from Korean body size phantoms and National CT Dose Index Registry Data
Authors: Izzati Lia Wilda, Ajin Jo, et al.
Content type: Research Article
Published: 27 January 2026 Pages: 303 – 312
Robustness of heart dose against cardiac cycle in breast cancer radiotherapy with deep inspiration breath-hold
Authors: Yuya Yanagi, Hajime Monzen, et al.
Content type: Research Article
Open access
Published: 08 February 2026 Pages: 313 – 320
Enhancement of electron beam conformity in MRI-guided radiotherapy with parallel magnetic fields: a Monte Carlo analysis
Authors: Mohammed Rezzoug, Yassine Oulhouq, et al.
Content type: Research Article
Published: 04 February 2026 Pages: 321 – 333
Investigation of dynamic chest radiography exposure parameters using static chest radiography conditions
Authors: Yukihiro Nawa, Taku Kuramoto, et al.
Content type: Research Article
Published: 05 February 2026 Pages: 334 – 341
Reproducibility of native T1 value measurements across cardiac phases and slice positions using a 1.5T magnetic resonance system
Authors: Isamu Yabata, Junpei Ueda, et al.
Content type: Research Article
Published: 04 February 2026 Pages: 342 – 349
Megavoltage computed tomography image quality assessment in a modern tomotherapy system: a frequency-domain analysis
Authors: Hiroshi Kunitomo, Masato Yamada, et al.
Content type: Research Article
Published: 02 February 2026 Pages: 350 – 358
Automatic measurement of pharyngeal contraction ratio during deglutition using 2D cine MRI with deep learning: A pilot study
Authors: Masato TakahashiNaoka MiyamotoShinji Abe
Content type: Technical Note
Published: 14 November 2025 Pages: 359 – 368
Atlas selection methods for multi-atlas-based segmentation in breast cancer radiotherapy planning
Authors: Anri Minamitake, Ryuji Murakami, et al.
Content type: Technical Note
Published: 20 November 2025 Pages: 369 – 375
Morphological approaches for optimizing lateral knee radiographs in normal knees and knees with osteoarthritis
Authors: Nobutada Suzuki, Hajime Ito, et al.
Content type: Technical Note
Published: 29 November 2025 Pages: 376 – 383
Subtraction-based Stepwise computed tomography post-processing with probabilistically adjusted thresholding for fat–ice demarcation: an in situ study
Authors: Chihiro Itou, Yoshiki Ishihara, et al.
Content type: Technical Note
Published: 15 December 2025 Pages: 384 – 391
Validation of the count-reduction method for planar bone scintigraphy: a phantom study focused on hot-lesion detection
Authors: Akinobu Kita, Yoshihiro Nakamori
Content type: Technical Note
Published: 15 December 2025 Pages: 392 – 398
Contrast dose determination using effective diameter in patients of unknown weight for dynamic computed tomography of the upper abdomen: a feasibility study
Authors: Masaaki Fukunaga, Shota Ichikawa, et al.
Content type: Clinical Technique
Open access
Published: 19 January 2026 Pages: 399 – 408
Influence of standardized breath-holding instruction and practice on craniocaudal misregistration between the arterial and venous phases in preoperative abdominal contrast-enhanced computed tomography
Authors: Ryota Yamanaka, Kazutoshi Tsunou, et al.
Content type: Clinical Technique
Published: 22 January 2026 Pages: 409 – 420
