Results 71 to 80 of about 5,051 (266)

放射線エネルギーの違いによる喉頭癌における吸収線量の影響 [PDF]

, 2002
We investigated the usefulness of Gafchromic MD-55 film (Nuclear Associates, Inc.) for measuring the radiation doses on the radiotherapy of laryngeal cancers. Since larynx has thin wedge-shaped structure in anterior neck adjacent to airway, the radiation
Aoyama, Hideki, Hiraki, Yoshio, Inamura, Keiji, Inoue, Mitsuhiro, Morioka, Yasuki, Nakagiri, Yoshitada, Tahara, Seiji, Uno, Hirofumi   +7 more
core   +1 more source

First experience with third‐party validations: A robust calibration and QA procedure for proton FLASH delivery

Journal of Applied Clinical Medical Physics, Volume 26, Issue 10, October 2025.
Abstract Background Proton FLASH radiotherapy, delivering ultra‐high dose rates, shows promise in reducing normal tissue toxicity while maintaining tumor control. However, accurate dosimetry and quality assurance (QA) for FLASH remain challenging due to the extreme dose rates involved.
Chih‐Chiang Chang, Balaji Selvaraj, Xingyi Zhao, Jacob Rembish, Paige A. Taylor, Alexander Bookbinder, Chingyun Cheng, J. Isabelle Choi, Charles B. Simone II, Haibo Lin, Minglei Kang   +10 more
wiley   +1 more source

Karakteristik Thermoluminescent Dosimeters untuk Dosimetri In Vivo pada Radioterapi Eksterna [PDF]

, 2014
The Characteristics of Thermoluminescent Dosimeters (TLD) for in vivo dosimetry in external radiotherapy have been examined. The research was intended to determine the TLD calibration factor and TLD correction factors to various radiation doses, source ...
Muhlisin, Z. (Zaenul), Mursiyatun, M. (Mursiyatun), Setiawati, E. (Evi)   +2 more
core  

Local DRLs and automated risk estimation in paediatric interventional cardiology [PDF]

, 2019
Introduction : Cardiac catheterization procedures result in high radiation doses and often multiple procedures are necessary for congenital heart disease patients. However, diagnostic reference levels (DRL) remain scarce.
Bacher, Klaus, Buytaert, Dimitri, De Wolf, Daniël, PANZER, JOSEPH, Rubbens, Lukas, Vandekerckhove, Kristof   +5 more
core   +2 more sources

A case study on SSD to SAD linear accelerator calibration transition

Journal of Applied Clinical Medical Physics, Volume 26, Issue 10, October 2025.
Abstract Purpose Modifying calibration conditions of linear accelerators is infrequent and potentially a high‐risk procedure. This study outlines a systematic approach used to transition a linear accelerator's calibration condition in an active clinical environment from source‐to‐surface (SSD) to source‐to‐axis (SAD), while maintaining treatment ...
Sharareh Koufigar, Eric Ford, Yulun He, Soren Olsen, Jessica M. Fagerstrom   +4 more
wiley   +1 more source

A combined TLD/emulsion method of sampling dosimetry applied to Apollo missions [PDF]

A system which simplifies the complex monitoring methods used to measure the astronaut's radiation exposure in space is proposed. The excess dose equivalents of trapped protons and secondary neutrons, protons, and alpha particles from local nuclear ...
Schaefer, H. J.
core   +1 more source

Comprehensive characterization and validation of a fast‐resolving (1000 Hz) plastic scintillator for ultra‐high dose rate electron dosimetry

Medical Physics, Volume 52, Issue 10, October 2025.
Abstract Background The normal tissue sparing effect of ultra‐high dose rate irradiation (≥40 Gy/s, UHDR), as compared to conventional dose rate (CONV), has attracted significant research interest for FLASH radiotherapy (RT). Accurate, dose rate independent, fast‐responding dosimeters capable of resolving the spatiotemporal characteristics of UHDR ...
Lixiang Guo, Banghao Zhou, Yi‐Chun Tsai, Kai Jiang, Viktor Iakovenko, Ken Kang‐Hsin Wang   +5 more
wiley   +1 more source

Synthesis and Study of Kinetic Parameters of Nanophosphor LiB3O5: Al

مجله دانشکده پزشکی اصفهان, 2019
Background: Thermoluminescence dosimeters are the most widely used inactive in vivo dosimeters. Nanoparticles have more suitable dosimetry properties than similar bulk materials.
Parvin Kaviani, Daryoush Shahbazi-Gahrouei, Akbar Abdisaray, Jamshid Khorsandi   +3 more
doaj   +1 more source

Randomized comparison of operator radiation exposure comparing transradial and transfemoral approach for percutaneous coronary procedures: Rationale and design of the minimizing adverse haemorrhagic events by TRansradial access site and systemic implementation of angioX - RAdiation Dose study (RAD-MATRIX) [PDF]

, 2014
Background: Radiation absorbed by interventional cardiologists is a frequently under-evaluated important issue. Aim is to compare radiation dose absorbed by interventional cardiologists during percutaneous coronary procedures for acute coronary syndromes
Calabrò, A. (Anna), Cortese, B. (Bernardo), Gagnor, A. (Andrea), Limbruno, U. (Ugo), Rigattieri, S. (Stefano), Rubartelli, P. (Paolo), Sarandrea, A. (Alessandro), Sardella, G. (Gennaro), Sciahbasi, A. (Alessandro), Tebaldi, M. (Matteo), Tomassini, F. (Francesco), Valgimigli, M. (Marco), Zavalloni, D. (Dennis), Zingarelli, A. (Antonio)   +13 more
core   +1 more source

Towards quantitative ionizing radiation acoustic imaging (iRAI) for radiation dose measurement: Validation from simulations to experiments

Medical Physics, Volume 52, Issue 9, September 2025.
Abstract Background In clinical radiation therapy (RT), accurately quantifying the delivered radiation dose to the targeted tumors and surrounding tissues is essential for evaluating treatment outcomes. Ionizing radiation acoustic imaging (iRAI), a novel passive and non‐invasive imaging technique, has the potential to provide real‐time in vivo ...
Yaocai Huang, Lise Wei, Dale Litzenberg, Borui Li, Chenshuo Ma, Hyeonwoo Kim, Yiming Liu, Claire Zhang, Paul L. Carson, Issam El Naqa, Wei Zhang, Xueding Wang   +11 more
wiley   +1 more source