Results 31 to 40 of about 256 (114)

On the acceptance, commissioning, and quality assurance of electron FLASH units

open access: yesMedical Physics, Volume 52, Issue 2, Page 1207-1223, February 2025.
Abstract Background and purpose FLASH or ultra‐high dose rate (UHDR) radiation therapy (RT) has gained attention in recent years for its ability to spare normal tissues relative to conventional dose rate (CDR) RT in various preclinical trials. However, clinical implementation of this promising treatment option has been limited because of the lack of ...
Allison Palmiero   +17 more
wiley   +1 more source

Activation of hip prostheses in high energy radiotherapy and resultant dose to nearby tissue

open access: yesJournal of Applied Clinical Medical Physics, Volume 18, Issue 2, Page 100-105, March 2017., 2017
Abstract High energy radiotherapy can produce contaminant neutrons through the photonuclear effect. Patients receiving external beam radiation therapy to the pelvis may have high‐density hip prostheses. Metallic materials such as those in hip prostheses, often have high cross‐sections for neutron interaction.
Stephanie Keehan   +7 more
wiley   +1 more source

On the role of magnesium in a LiF:Mg,Ti thermoluminescent dosimeter [PDF]

open access: yesJournal of Physics: Condensed Matter, 2018
LiF doped with Mg and Ti is the most widely used thermoluminescent (TL) dosimeter for a large variety of applications. It has been argued that the Mg dopant is the most important defect in the TL process. Besides the common F-centre defects in LiF, optical absorption measurements have suggested the presence of Mg-related absorption bands at 380 nm (3 ...
Guerda Massillon-JL   +2 more
openaire   +3 more sources

Passive Dosimeters for Radiation Dosimetry: Materials, Mechanisms, and Applications

open access: yesAdvanced Functional Materials, Volume 34, Issue 41, October 8, 2024.
An insightful overview of different types of passive dosimeters classified according to the response signal, namely electron paramagnetic resonance, electrical, and optical, is presented. The fundamental requirements of dosimeters, the general dosimetry procedure, the working mechanism, the design concept as well as applications of each type of ...
Zetian Yang   +4 more
wiley   +1 more source

Dose rate conversion coefficients for ocular contamination in nuclear medicine: A Monte Carlo simulation with experimental validation

open access: yesMedical Physics, Volume 51, Issue 8, Page 5645-5653, August 2024.
Abstract Background Since 2011, the International Commission on Radiological Protection (ICRP) has recommended an annual eye lens dose limit of 20 mSv for radiation workers, averaged over 5 years, with no year exceeding 50 mSv. However, limited research has been conducted on dose rate conversion coefficients (DCCs) for direct contamination of the eye ...
Eva J. I. Hoeijmakers   +5 more
wiley   +1 more source

A comparison of TLD dosimeters: LiF:Mg,Ti and LiF:Mg,Cu,P for measurement of radiation therapy doses [PDF]

open access: yesMedical Physics, 2003
TLDs (thermoLuminescent dosimeters) are used in radiation therapy to verify the radiation dose cancer patients receive. University of Virginia Radiation Oncology clinic TLD results must be fully trustworthy so physicians can confidently monitor and determine a patient's treatment.
openaire   +1 more source

CHARACTERISTICS OF THERMOLUMINESCENCE LiF:Mg,Cu,Ag NANOPHOSPHOR

open access: yesRadiation Protection Dosimetry, 2018
A nanophosphor of LiF:Mg,Cu,Ag was prepared by planetary ball milling for the first time in the laboratory. The size and shape of the nanophosphor were confirmed by XRD and SEM, which showed that it was cubic in shape and ~53 nm in size. The thermoluminescence (TL) characteristics of this nanophosphor were then investigated.
A, Yahyaabadi   +2 more
openaire   +2 more sources

Creation of waterproof, TLD probes for dose measurements to validate image-based radiopharmaceutical therapy dosimetry workflow. [PDF]

open access: yesBiomed Phys Eng Express, 2023
Adam DP   +7 more
europepmc   +1 more source

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