Results 11 to 20 of about 2,866 (238)

Evaluation of SrAl₂ O₄ :Eu, Dy phosphor for potential applications in thermoluminescent dosimetry. [PDF]

J Appl Clin Med Phys, 2021
Purpose To evaluate the use of commercial‐grade strontium aluminate phosphorescent powder as a thermoluminescent (TL) dosimeter for clinical radiotherapy beams.
Tang X, Ehler ED, Brost E, Mathew DC.
europepmc   +2 more sources

Quantitative Assessment of the Effects of Scatter Radiation on Image Quality During Extremity Radiography at a Leading Tertiary Hospital in Ghana: An Experimental Pilot Study. [PDF]

Health Sci Rep
ABSTRACT Background and Aims There is a potential increase in scatter radiation during extremity radiography, where radiographers may divide the detector to obtain multiple images on one film. This study assesses the impact of scatter radiation on image quality (IQ) during the dividing receptor technique in extremity radiography at the Korle‐Bu ...
Domi EM, Ago JL, Antwi WK, Sule DS, Acquah G, Gagoh GY, Otsiwah OA.   +6 more
europepmc   +2 more sources

Commissioning and clinical implementation of Monaco treatment planning system on a compact pencil beam scanning proton therapy system. [PDF]

J Appl Clin Med Phys
Abstract Background Treatment planning system (TPS) requires comprehensive commissioning and validation prior to clinical use to ensure accurate dose calculation and safe clinical implementation. Purpose To enable clinical use of the Monaco proton TPS, we commissioned it on a single‐room compact proton therapy system and implemented a clinically ...
Xu X, Cong X, Liang J, Qin A, Chen S, Li X, Zheng W, Liu P, Dalfsen R, Dolan J, Soukup M, Stevens C, Deraniyagala R, Ding X.   +13 more
europepmc   +2 more sources

Occupational radiation exposure from handheld dental x-ray devices: A quantitative dosimetric study. [PDF]

J Appl Clin Med Phys
Abstract Background Occupational radiation exposure from handheld dental radiographic devices may pose potential health risks. This study aims to quantitatively evaluate the occupational radiation dose from handheld dental radiographic devices, UAX‐01 (Device A), HyperLight‐G (Device B), and EzRay Air P (Device C) to the operator's critical anatomical ...
Abubakr RI, Hajee SI.
europepmc   +2 more sources

Dosimetry for FLASH Radiotherapy: A review of dosimetric systems

Brazilian Journal of Radiation Sciences
FLASH radiotherapy (FLASH-RT) is a promising approach to cancer treatment, characterized by the delivery of high doses of radiation in a short period of time, within fractions of seconds.
Karoline Feitoza Suzart, Maria da Penha Albuquerque Potiens   +1 more
doaj   +2 more sources

Small dose monitor based on silicon-carbide diodes for FLASH radiotherapy. [PDF]

Med Phys
Abstract Background The FLASH biological effect in radiotherapy has been observed to appear at ultra‐high dose rates UHDR (>$>$40 Gy/s), where the accurate dosimetry at such high rates is still a challenge. Purpose A new 4 ×$\times$ 4 array of SiC‐based detectors (1 mm diameter, 2.2 mm pitch) is proposed for dosimetry in UHDR, as well as the ...
Lopez Paz I, Fleta C, Henao Á, Heinrich S, Guardiola C.   +4 more
europepmc   +2 more sources

Thermoluminescent composites of sintered synthetic-topaz/in situ corundum for dosimetry by a novel reversible process

Heliyon
Topaz (Al2F1·44(OH)0·56SiO4)/corundum (Al2O3) composites were prepared by a facile and novel reversible process from the sintering of synthetic topaz and AlF3 powders, with corundum formed in situ into the topaz matrix.
S.A. Sinclair, M.I. Pech-Canul, M.C. Acosta-Enríquez, R. Meléndrez Amavizca, Alejandro Sala Crist, J. Marcazzó   +5 more
doaj   +2 more sources

Evaluation of 3D Printed Anthropomorphic Head Phantom for Calibration of TLD in Eye Lens Dosimeter [PDF]

Journal of Biomedical Physics and Engineering, 2023
Background: Calibration of Thermo Luminescent Dosimetry (TLD) in eye lens dosimeter requires a standard phantom. The use of anthropomorphic phantoms in calibration needs evaluation.   Objective: This study aimed to analyze the angular response of the TLD
Endarko Endarko, Anthonia Wahyu Pitaloka, Amalia Alik Inayah, Fakhrusy Rizqy Ramadhan, Kardianto Kardianto, Betty Rahayuningsih   +5 more
doaj   +1 more source

Structural and luminescence properties of Y2O3:Ho3+ phosphor: Potential applications in plant cultivation LEDs and thermoluminescent dosimetry

Chemical Physics Impact
Current research on Y2O3:Ho3+ phosphors highlight their promising luminescence properties, but often lacks an environmentally friendly synthesis method and comprehensive analysis of their applications. In this study, we address these gaps by successfully
Swati Gajbhiye, Yatish R. Parauha, Naumov G. Nikolay, S.J. Dhoble   +3 more
doaj   +2 more sources

Workplace monitoring in the Radiation Physics and Metrology Laboratory (LAF-RAM)

Brazilian Journal of Radiation Sciences, 2022
The values of environmental equivalent dose H*(10) using thermoluminescent dosimeters (TLD) in the Radiation Physics and Metrology Laboratory (LAF-RAM) from 2019 to 2021 are presented.
Andrea Castillo, Josselyn Mendoza, Norma Roas   +2 more
doaj   +1 more source