Article
Engineering, Biomedical
Erika Kollitz, Haegin Han, Chan Hyeong Kim, Marco Pinto, Marco Schwarz, Marco Riboldi, Florian Kamp, Claus Belka, Wayne Newhauser, George Dedes, Katia Parodi
Summary: The objective of this study was to investigate the late effects of radiation therapy and develop a hybrid human body model for estimating the overall organ dose without the need for a full-body CT scan. The results showed that the hybrid model provided higher accuracy in dose calculations compared to other models, which is significant for personalized assessment of late effects and optimization of treatment plans.
PHYSICS IN MEDICINE AND BIOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Mehdi Shojaei, Somayeh Rashedi, Ali Nabipour Chakoli, Amir Hossein Karimi, Ghazale Geraily
Summary: This study aims to evaluate the effects of secondary radiation from radiotherapy on the thyroid, chiasm, and lenses, specifically in terms of fast neutron equivalent dose and secondary cancer risk. The results showed significant fast neutron doses and secondary cancer risks in out-of-field organs.
APPLIED RADIATION AND ISOTOPES
(2022)
Article
Nuclear Science & Technology
Kuo-Yuan Chu, Weng-Sheng Kuo, How-Ming Lee, Yiin-Kuen Fuh
Summary: This study developed a quasi-monoenergetic neutron source (QMN) for the semiconductor device's soft error rate test (SER). Quasi-monoenergetic neutrons are generated by 9Be(p, n)9B nuclear reaction with a 1 mm beryllium target and 30 MeV protons from a cyclotron. The neutron spectra simulated by MCNP showed that the peak energy was around 26.5 MeV. The heat flow and mechanical properties are numerically analyzed, and the safe operating conditions are therefore determined.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2023)
Article
Instruments & Instrumentation
Y. Q. Wang, J. L. Du, H. Lin, X. Ch. Zhou, C. Lin, J. Qiu, J. Y. Li, X. C. Guan, L. Gu
Summary: This article proposes a design of beam shaping assembly (BSA) for an accelerator-based BNCT (AB-BNCT) epithermal neutron source facility using 7Li(p,n)7Be reaction, and the results show that all parameters of BSA meet the recommended values of International Atomic Energy Agency (IAEA). The dose distribution and parameters in the Snyder head phantom are calculated using the Monte Carlo simulations to evaluate the performance of the epithermal neutron beam.
JOURNAL OF INSTRUMENTATION
(2023)
Article
Nuclear Science & Technology
Naonori Hu, Hiroki Tanaka, Kazuhiko Akita, Ryo Kakino, Teruhito Aihara, Keiji Nihei, Koji Ono
Summary: The world's first accelerator-based epithermal neutron source for clinical BNCT has been developed and received medical device approval in Japan, allowing it to be used for the treatment of head and neck tumors.
JOURNAL OF NEUTRON RESEARCH
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Josue Esteves, Odran Pivot, Julien Ribouton, Patrice Jalade, Abdelaali Zouaoui, Laurent Desbat, Simon Rit, Frederic Blanc, Guido Haefeli, Plamen Hopchev, Jean-Marc Galvan, Guo-Neng Lu, Patrick Pittet
Summary: This study aims to develop a novel instrument for real-time quality assurance in radiotherapy. The proposed system utilizes high-resolution scintillating fiber ribbons to monitor the two-dimensional dose distributions of small fields. Through a two-step signal processing method, the dose can be accurately reconstructed. The results of testing show that the system performs well with high accuracy and resolution. It has the potential to be an alternative approach to film dosimetry for small-field quality assurance.
Article
Pharmacology & Pharmacy
Jamie L. Young, Matthew C. Cave, Qian Xu, Maiying Kong, Jianxiang Xu, Qian Lin, Yi Tan, Lu Cai
Summary: Nonalcoholic fatty liver disease (NAFLD) is a major global public health concern, and this study explored the effects of early-life cadmium (Cd) exposure on diet-induced NAFLD. The results showed that different concentrations of Cd exposure altered the adverse health effects associated with a high-fat diet, including liver injury and lipid deposition. These findings contribute to a better understanding of the development of NAFLD.
TOXICOLOGY AND APPLIED PHARMACOLOGY
(2022)
Article
Medicine, General & Internal
Andreas S. Brendlin, Moritz T. Winkelmann, Phuong Linh Do, Vincent Schwarze, Felix Peisen, Haidara Almansour, Malte N. Bongers, Christoph P. Artzner, Jakob Weiss, Jong Hyo Kim, Ahmed E. Othman, Saif Afat
Summary: The study demonstrates that in single-energy WBCT staging, maintaining good subjective image quality, diagnostic confidence, and image noise levels is achievable at dose levels as low as 40% of the original dose when using ADMIRE 3.
Article
Orthopedics
Nathan Huber, Tara Anderson, Andrew Missert, Mark Adkins, Shuai Leng, Joel Fletcher, Cynthia McCollough, Lifeng Yu, Katrina N. Glazebrook
Summary: The study evaluated the clinical utility of a phantom-based convolutional neural network noise reduction framework for whole-body-low-dose CT skeletal surveys. The results suggest that the convolutional neural network can improve visualization of critical structures within CT skeletal surveys and has the potential for dose reduction at 25% dose level. However, the 75% dose reduction condition studied is not currently recommended for clinical implementation.
SKELETAL RADIOLOGY
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Maite Romero-Exposito, Malgorzata Liszka, Athanasia Christou, Iuliana Toma-Dasu, Alexandru Dasu
Summary: The study aims to assess the increase in neutron dose due to the range shifter (RS) in proton pencil-beam scanning (PBS) technique and test an analytical model for neutron production. Results show that in the plan using RS, neutron dose at 40 cm from the edge is 1.2 to 10 times higher compared to plans without RS.
Article
Radiology, Nuclear Medicine & Medical Imaging
Shigeji Ichikawa, Hiroe Muto, Masashi Imao, Takashi Nonaka, Kouji Sakekawa, Yasutaka Sato
Summary: In this study, the function of Slot-scan digital radiography (SSDR) was used to obtain low-dose imaging parameters for whole-spine imaging. By adjusting tube voltage, exposure time, and beam-hardening filters, the optimal parameters were determined through FOM results and visual evaluation. The results showed that whole-spine SSDR could reduce the dose by 79% while maintaining image quality.
BMC MEDICAL IMAGING
(2023)
Review
Oncology
Marek K. Janiak, Mateusz Pociegiel, James S. Welsh
Summary: Clinical trials conducted from the 1930s to the end of the 20th century have shown that total-body ultralow level ionizing radiation treatment can be as effective or even superior to other systemic anti-neoplastic modalities. It is worth reviving interest in and resuming clinical investigations to improve the effectiveness of this treatment.
CRITICAL REVIEWS IN ONCOLOGY HEMATOLOGY
(2021)
Article
Physics, Multidisciplinary
Wu Wen-Bin, Peng Shi-Xiang, Zhang Ai-Lin, Zhou Hai-Jing, Ma Teng-Hao, Jiang Yao-Xiang, Li Kai, Cui Bu-Jian, Guo Zhi-Yu, Chen Jia-Er
Summary: This study investigates the behavior of hydrogen and deuterium plasmas in miniature electron cyclotron resonance (ECR) ion sources. The results show that the discharge processes of the ion source are strongly influenced by gas pressure and microwave power. High power increases the proportion of H+ (D+) ions, while low pressure enhances the ratio of H-2+ (D-2+) ions. Additionally, there is a difference in ion proportion between hydrogen and deuterium discharge, with the proportion of D+ ions being 10%-25% higher due to the higher plasma density of deuterium discharge.
ACTA PHYSICA SINICA
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Amirhossein Sanaat, Isaac Shiri, Hossein Arabi, Ismini Mainta, Rene Nkoulou, Habib Zaidi
Summary: The study aimed to evaluate the performance of synthesizing regular full-dose PET images from fast/low-dose whole-body PET images using deep learning techniques. The results showed that the predicted full-dose images had almost similar performance in terms of lesion detectability, qualitative scores, and quantification bias and variance.
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2021)
Article
Physiology
Weizhi Xiong, Xuefeng Liu
Summary: This study aimed to investigate the effect of whole-body vibration training (WBVT) combined with KAATSU training (KT) on lower limb joint muscle strength in older women. The results showed that WBVT and KT increased knee extensor strength, and the combined intervention had better improvements in knee extensor and ankle flexor and extensor strength, as well as hip extension muscle endurance. This has important implications for improving muscle strength in older women.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Oncology
Gen Futamura, Shinji Kawabata, Naosuke Nonoguchi, Ryo Hiramatsu, Taichiro Toho, Hiroki Tanaka, Shin-Ichiro Masunaga, Yoshihide Hattori, Mitsunori Kirihata, Koji Ono, Toshihiko Kuroiwa, Shin-Ichi Miyatake
RADIATION ONCOLOGY
(2017)
Article
Instruments & Instrumentation
H. Tanaka, Y. Sakurai, T. Takata, T. Watanabe, S. Kawabata, M. Suzuki, S. -I. Masunaga, K. Taki, K. Akabori, K. Watanabe, K. Ono
REVIEW OF SCIENTIFIC INSTRUMENTS
(2017)
Article
Clinical Neurology
Koji Takeuchi, Shinji Kawabata, Ryo Hiramatsu, Yoko Matsushita, Hiroki Tanaka, Yoshinori Sakurai, Minoru Suzuki, Koji Ono, Shin-Ichi Miyatake, Toshihiko Kuroiwa
JOURNAL OF NEUROLOGICAL SURGERY PART B-SKULL BASE
(2018)
Article
Nuclear Science & Technology
Ryosuke Kurihara, Akihiro Nohtomi, Genichiro Wakabayashi, Yoshinori Sakurai, Hiroki Tanaka
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
(2019)
Article
Biology
Shin-ichiro Masunaga, Yoshinori Sakurai, Hiroki Tanaka, Takushi Takata, Minoru Suzuki, Yu Sanada, Keizo Tano, Akira Maruhashi, Koji Ono
INTERNATIONAL JOURNAL OF RADIATION BIOLOGY
(2019)
Article
Biology
Koji Ono, Hiroki Tanaka, Yuki Tamari, Tsubasa Watanabe, Minoru Suzuki, Shin-ichiro Masunaga
JOURNAL OF RADIATION RESEARCH
(2019)
Article
Physics, Fluids & Plasmas
Atsushi Sunahara, Takashi Asahina, Hideo Nagatomo, Ryohei Hanayama, Kunioki Mima, Hiroki Tanaka, Yoshiaki Kato, Sadao Nakai
PLASMA PHYSICS AND CONTROLLED FUSION
(2019)
Article
Biology
Takuya Kanemitsu, Shinji Kawabata, Masao Fukumura, Gen Futamura, Ryo Hiramatsu, Naosuke Nonoguchi, Fumiko Nakagawa, Takushi Takata, Hiroki Tanaka, Minoru Suzuki, Shin-Ichiro Masunaga, Koji Ono, Shin-Ichi Miyatake, Hiroyuki Nakamura, Toshihiko Kuroiwa
RADIATION AND ENVIRONMENTAL BIOPHYSICS
(2019)
Article
Instruments & Instrumentation
H. Tanaka, T. Takata, Y. Ishi, T. Uesugi, Y. Kuriyama, T. Watanabe, Y. Sakurai, S. Kawabata, S- Masunag, M. Suzuki
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2019)
Article
Biology
Shin-ichiro Masunaga, Yoshinori Sakurai, Hiroki Tanaka, Takushi Takata, Minoru Suzuki, Yu Sanada, Keizo Tano, Akira Maruhashi, Koji Ono
INTERNATIONAL JOURNAL OF RADIATION BIOLOGY
(2019)
Article
Chemistry, Inorganic & Nuclear
Takahiro Kato, Katsumi Hirose, Hiroki Tanaka, Toshinori Mitsumoto, Tomoaki Motoyanagi, Kazuhiro Arai, Takaomi Harada, Akihiko Takeuchi, Ryohei Kato, Satoru Yajima, Yoshihiro Takai
APPLIED RADIATION AND ISOTOPES
(2020)
Article
Chemistry, Multidisciplinary
Changyuan Qin, Xuan Hou, Thahomina Khan, Nobuhiro Nitta, Masashi Yanagawa, Yuriko Sakurai, Minoru Suzuki, Shin-Ichiro Masunaga, Hiroki Tanaka, Yoshinori Sakurai, Hiroyuki Takahashi, Ichio Aoki, Hironobu Yanagie, Horacio Cabral
Article
Radiology, Nuclear Medicine & Medical Imaging
Hironobu Yanagie, Novriana Dewi, Syushi Higashi, Ichiro Ikushima, Koji Seguchi, Ryoji Mizumachi, Yuji Murata, Yasuyuki Morishita, Atsuko Shinohara, Shoji Mikado, Nakahiro Yasuda, Mitsuteru Fujihara, Yuriko Sakurai, Kikue Mouri, Masashi Yanagawa, Tomoya Iizuka, Minoru Suzuki, Yoshinori Sakurai, Shin-Ichiro Masunaga, Hiroki Tanaka, Takehisa Matsukawa, Kazuhito Yokoyama, Takashi Fujino, Koichi Ogura, Yasumasa Nonaka, Hirotaka Sugiyama, Tetsuya Kajiyama, Sho Yui, Ryohei Nishimura, Koji Ono, Sinichi Takamoto, Jun Nakajima, Minoru Ono, Masazumi Eriguchi, Kenichiro Hasumi, Hiroyuki Takahashi
BRITISH JOURNAL OF RADIOLOGY
(2017)
Article
Chemistry, Inorganic & Nuclear
Kenichi Tanaka, Yoshinori Sakurai, Shin-ichiro Hayashi, Tsuyoshi Kajimoto, Ryohei Uchida, Hiroki Tanaka, Takushi Takata, Gerard Bengua, Satoru Endo
APPLIED RADIATION AND ISOTOPES
(2017)
Article
Oncology
Natsuko Kondo, Hiroyuki Michiue, Yoshinori Sakurai, Hiroki Tanaka, Yosuke Nakagawa, Tsubasa Watanabe, Masaru Narabayashi, Yuko Kinashi, Minoru Suzuki, Shin-ichiro Masunaga, Koji Ono
REPORTS OF PRACTICAL ONCOLOGY AND RADIOTHERAPY
(2016)
Article
Chemistry, Inorganic & Nuclear
R. Galea, K. Moore
Summary: In this study, the solution of 225Ac was standardized using the TDCR method. The counting efficiencies were calculated to be approximately 500% for the NRC TDCR system. The relative uncertainty for the activity concentration was determined to be 0.25%. The measured half-life of 225Ac was found to be consistent with previous measurements.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
N. C. Ramirez, S. M. Collins
Summary: In this paper, the authors determined the half-life of 68Ga using ionisation chambers measurements and HPGe gamma-ray spectrometry. They reviewed the current literature and identified possible causes of inconsistency within the dataset. The findings suggest that addressing these issues could lead to a significant improvement in future evaluations of the half-life.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
C. P. Mano, C. Chapelle, Der Mesrobian Kabakian, H. Paradis, O. Delaune, L. Patryl
Summary: CEA/DAM is developing new beta-gamma measurement systems to enhance the reliability of the Comprehensive Nuclear Test Ban Treaty's verification regime. A new spectral unmixing algorithm for full-spectrum analysis was tested to improve analysis methods for nuclear activities with low statistics.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Junyoung Lee, Geunsub Kim, Hyegang Chang, Sangmin Lee, Sung-Joon Ye
Summary: The study applied the convolution/superposition method to calculate the dose distribution of boron neutron capture therapy and compared it with the Monte Carlo method. The results showed that the C/S method has a fast calculation speed and reasonable accuracy.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Victor H. Elvira, Marie-Christine Lepy, Yves Menesguen, Stephanie Melhem
Summary: In this study, a cryogenic electrical-substitution radiometer was utilized for the primary calibration of monochromatic photon beams at a synchrotron facility, in order to determine the intrinsic efficiency and dead layer thickness of an HPGe detector. This calibration method allowed for the calculation of efficiency up to 55 keV, where the active thickness of the detector is not a determining factor. Geometrical efficiency was also determined through measurements of a radioactive source at various distances.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Ali Pashazadeh, Hamid Reza Baghani, Mostafa Robatjazi, Prajit Kadavil
Summary: This study investigated the effect of patch source geometric parameters on the depth dose distribution in skin tissue through Monte Carlo simulation. The results showed that increasing the source-to-skin distance, patch thickness, and patch diameter will reduce the depth dose distribution, with the source-to-skin distance having the most significant impact on dose gradient.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Yueli Song, Fengqun Zhou, Yajuan Hao, Xiaopeng Zhang, Pengfei Ji, Yong Li
Summary: In this study, the cross section values of the 109Ag(n,2n)108mAg reaction at different neutron energies were measured using the activation technique and off-line gamma-ray spectrometry. The results were compared with experimental data, evaluated data from libraries, and theoretical values to validate their accuracy.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhongkai Fan, Tao Hu, Xiangming Cai, Ruomei Xie, Haoxuan Li, Fengdi Qin, Shoukang Qiu, Yanliang Tan, Jian Shan
Summary: The high-precision measurement of Rn-220 is crucial for assessing and preventing thoron radiological hazards. By adding a ZnS(Ag)-coated clapboard, the issue of reduced Rn-220 concentrations due to decreased air pressure can be addressed, leading to improved detection efficiency. Experimental and simulation results provide valuable references for establishing the Rn-220 calibration factor.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
R. Han, Z. Chen, Y. Nie, B. Liu, G. Tian, X. Zhang, F. Shi, H. Sun, Z. Zhang, Y. Ding, X. Ruan, J. Ren, S. Zhang
Summary: The leakage neutron spectra of Lead samples were measured using a TOF technique, and MCNP simulations with different nuclear data libraries showed that JENDL-5.0 and JEFF-3.3 libraries have better agreement with experimental data. Differences in spectra mainly stem from variations in neutron reaction channels across the libraries, with ENDF/B-VIII.0 and CENDL-3.2 libraries being overestimated in certain energy ranges.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Nissren Tamam, Maryam Al Huwayz, Z. A. Alrowaili, Norah Alwadai, Khadijah Mohammedsaleh Katubi, Mohammed S. Alqahtani, I. O. Olarinoye, M. S. Al-Buriahi
Summary: This study investigates the radiation shielding properties and radiation protection applications of borotellurite glasses. The results show that the addition of TeO2 can enhance the glass's ability to absorb photons and fast neutrons, and effectively suppress photon buildup. These glasses also exhibit exceptional gamma radiation and fast neutron moderating abilities, making them suitable for designing lead-free, transparent, and efficient radiation protection structures.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
S. Chasapoglou, M. Kokkoris, R. Vlastou, M. Diakaki, V. Michalopoulou, A. Kalamara, G. Gkatis, A. Stamatopoulos, M. Axiotis, S. Harissopulos, A. Lagoyannis, M. I. Savva, T. Vasilopoulou, C. Lederer-Woods, N. Patronis, K. Kaperoni
Summary: This study investigated the accuracy and limitations of theoretical corrections in neutron-induced reactions on isotopically enriched Ge targets. Experimental cross-section measurements were conducted on several reactions using Ge-nat and isotopically enriched Ge targets. The results showed that the methodology using isotopically enriched targets provided accurate results without the need for theoretical corrections.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
P. G. Konstantinidis, G. S. Polymeris, E. Tsoutsoumanos, G. Kitis
Summary: This study investigates an altered version of an existing protocol to study the mechanisms and phenomena of stimulated luminescence. The protocol allows for the examination of recombination mechanisms and trapping parameters of the traps, as well as the observation of potential transitions between two different states.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Quanzhi Yu
Summary: This study obtained the broad neutron spectrum of the Atmospheric Neutron Irradiation Spectrometer (ANIS) through Monte Carlo simulation and provided an analytic expression. By calculating the Single Error Rate (SER) and ratio, the reliability of the ANIS neutron spectrum was evaluated.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
D. Glavic Cindro, M. Korun, T. Petrovic, B. Vodenik, B. Zorko
Summary: In gamma-ray spectrometric measurements, the decision threshold is determined by the observed value of the measurand. However, this dependence restricts its application to measurements with non-expressive indications. To address this issue, a recalculation of the decision thresholds based on the peak widths corresponding to expressive indications is proposed.
APPLIED RADIATION AND ISOTOPES
(2024)
