Results 31 to 40 of about 705 (160)

Whole-body dose and energy measurements in radiotherapy by a combination of LiF:Mg,Cu,P and LiF:Mg,Ti

Zeitschrift für Medizinische Physik, 2018
Long-term survivors of cancer who were treated with radiotherapy are at risk of a radiation-induced tumor. Hence, it is important to model the out-of-field dose resulting from a cancer treatment. These models have to be verified with measurements, due to the small size, the high sensitivity to ionizing radiation and the tissue-equivalent composition ...
Hauri P, Schneider U
openaire   +3 more sources

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

Medical 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, Kevin Liu, Julie Colnot, Nitish Chopra, Denae Neill, Luke Connell, Brett Velasquez, Albert C. Koong, Steven H. Lin, Peter Balter, Ramesh Tailor, Charlotte Robert, Jean‐François Germond, Patrik Gonçalves Jorge, Reiner Geyer, Sam Beddar, Raphael Moeckli, Emil Schüler   +17 more
wiley   +1 more source

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

Journal 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, Ryan L. Smith, Jeremy Millar, Max Esser, Michael L. Taylor, Peta Lonski, Tomas Kron, Rick D. Franich   +7 more
wiley   +1 more source

Effect of reconstruction methods and x‐ray tube current–time product on nodule detection in an anthropomorphic thorax phantom: A crossed‐modality JAFROC observer study

Medical Physics, Volume 43, Issue 3, Page 1265-1274, March 2016., 2016
Purpose: To evaluate nodule detection in an anthropomorphic chest phantom in computed tomography (CT) images reconstructed with adaptive iterative dose reduction 3D (AIDR3D) and filtered back projection (FBP) over a range of tube current–time product (mAs).
J. D. Thompson, D. P. Chakraborty, K. Szczepura, A. K. Tootell, I. Vamvakas, D. J. Manning, P. Hogg   +6 more
wiley   +1 more source

Assessment of energy and angular dependence of LiF:Mg,Ti dosimeters irradiated in the quantity Hp(0.07)

, 2023
Radiation dosimetry has the purpose of quantifying the dose received by the occupationally exposed individual. The device used in this process is called a dosimeter, the dosimeter can be used in different situations, for example, the dosimeter used to ...
G. G. Nascimento, L. L. Campos, C. R. Silva, V. P. Campos   +3 more
core   +2 more sources

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

Advanced 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, Henk Vrielinck, Luiz G. Jacobsohn, Philippe F. Smet, Dirk Poelman   +4 more
wiley   +1 more source

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

Medical 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, Kes Hoenen, Matthias Bauwens, Daniëlle B. P. Eekers, Cécile R. L. P. N. Jeukens, Roel Wierts   +5 more
wiley   +1 more source

Respuesta Termoluminiscente de LiF:Mg,Ti [PDF]

, 2013
En el presente trabajo se muestran las características Termoluminiscentes (TL) del LiF:Mg,Ti, a los polvos obtenidos se les dio diferentes tratamientos térmicos determinando el optimo tratamiento.Articulo en extenso de memoria de SimposioInstituto ...
Lozano Rojas, I, Rivera Montalvo, T, Gonzalez Martinez, P R   +2 more
core  

Characterization and calibration of thermoluminescent dosimeters of LiF:Mg, Ti in the quantity Hp(0.07)

, 2022
The extremity dosimeters are devices used to quantifying the radiation dose that the occupationally exposed individual receives in specific regions of the body during the work time.
Vicente Campos, Leticia Lucente, Gabriel Nascimento   +2 more
core   +2 more sources

Keunggulan dan kelemahan TLD-100 (LiF:Mg,Ti) dan TLD-100H (LiF:Mg,Cu,P) dalam aplikasi medis dosis rendah [PDF]

, 2018
Penelitian mengenai keunggulan dan kelemahan TLD-100 dan TLD-100H dalam aplikasi medis dosis rendah telah dilakukan. Dosimeter Termoluminisensi (TLD) menyerupai dosimeter film badge, detektor yang digunakan ini adalah kristal anorganik termoluminisensi ...
Permana, Risma Tresna
core