Results 91 to 100 of about 1,159,598 (181)

Out-of-field doses in radiotherapy treatments of paediatric patients

, 2021
Out-of-field doses are delivery to healthy tissues, which may allow the development of second tumours. Its evaluation with MC methods is essential since these doses are inaccurate when calculated by TPSs. The use of IMRT has been discussed, especially in paediatric patients, as it leads to a "bath" of low doses to large volumes of out-of-field tissue ...
openaire   +1 more source

Assessment of accuracy of out-of-field dose calculations by TiGRT treatment planning system in radiotherapy

Journal of Cancer Research and Therapeutics, 2018
Aim: The objective was to quantify the accuracy of dose calculation for out-of-field regions by the commercially available TiGRT version 1.2 (LinaTech, Sunnyvale, CA, USA) treatment planning system (TPS) for a clinical treatment delivered on a Siemens Primus with the single energy of 6 MV.
Mohammad Taghi, Bahreyni Toossi, Shokouhozaman, Soleymanifard, Bagher, Farhood, Shokoufeh, Mohebbi, David, Davenport   +4 more
openaire   +2 more sources

Editorial: Out-of-field second primary cancer induction: Dosimetry and modelling

Frontiers in Oncology, 2022
Beatriz Sánchez-Nieto, Liliana Stolarczyk, Liliana Stolarczyk, Alexandru Dasu, Alexandru Dasu, Wayne D. Newhauser, Francisco Sánchez-Doblado   +6 more
doaj   +1 more source

A study on out-of-field leakage of an accelerator-based neutron beam for boron neutron capture therapy

Frontiers in Oncology
More and more accelerator-based boron neutron capture therapy (AB-BNCT) facilities are under the construction or commissioning stage, and the neutron beam characteristic measurements at each facility will start soon.
Zhen-Fan You, Chun-Kai Huang, Yen-Wan Hsueh Liu   +2 more
doaj   +1 more source

Photon and Neutron Dose Estimation Using Monte Carlo Simulation in TrueBeam’s Room

Journal of Medical Physics
Purpose: The distribution of neutron ambient dose equivalent within the TrueBeam 10 MV photon chamber was investigated. Materials and Methods: The research used particle and heavy ion transport code system (PHITS) code and JENDL-5.0 to simulate the ...
Soai Dang Quoc, Toshioh Fujibuchi, Hiroyuki Arakawa, Keisuke Hamada   +3 more
doaj   +1 more source

Integral T-Shaped Phantom-Dosimeter System to Measure Transverse and Longitudinal Dose Distributions Simultaneously for Stereotactic Radiosurgery Dosimetry

Sensors, 2012
A T-shaped fiber-optic phantom-dosimeter system was developed using square scintillating optical fibers, a lens system, and a CMOS image camera.
Bongsoo Lee, Byung Gi Park, Jang-Yeon Park, Dayeong Jeon, Ki-Tek Han, Sang Hun Shin, Jinsoo Moon, Kyoung Won Jang, Wook Jae Yoo   +8 more
doaj   +1 more source

Out-of-field dose assessment for a 1.5 T MR-Linac with optically stimulated luminescence dosimeters. [PDF]

Med Phys, 2021
Zhang Y, Yan S, Cui Z, Wang Y, Li Z, Yin Y, Li B, Quan H, Zhu J.   +8 more
europepmc   +1 more source

CT Coronary Angiography with 100kV tube voltage and a low noise reconstruction filter in non-obese patients: evaluation of radiation dose and diagnostic quality of 2D and 3D image reconstructions using open source software (OsiriX) [PDF]

, 2012
INTRODUCTION AND PURPOSE. Computed tomography coronary angiography (CTCA) has seen a dramatic evolution in the last decade owing to the availability of multislice CT scanners with 64 detector rows and beyond.
FAGGIONI, LORENZO
core  

Surface dose measurements in and out of field: Implications for breast radiotherapy with megavoltage photon beams

Zeitschrift für Medizinische Physik, 2017
This study examines the difference in surface dose between flat and flattening filter free (FFF) photon beams in the context of breast radiotherapy. The surface dose was measured for 6MV, 6MV FFF, 10MV, 10MV FFF and 18MV photon beams using a thin window ionisation chamber for various field sizes.
Lonski, Peta, Ramachandran, Prabhakar, Franich, Rick, Kron, Tomas   +3 more
openaire   +3 more sources

Stable topological insulators achieved using high energy electron beams

, 2016
Topological insulators are transformative quantum solids with immune-to-disorder metallic surface states having Dirac band structure. Ubiquitous charged bulk defects, however, pull the Fermi energy into the bulk bands, denying access to surface charge ...
Begliarbekov, Milan, Chen, Zhiyi, Deng, Haiming, Hruban, Andrzej, Konczykowski, Marcin, Korzhovska, Inna, Krusin-Elbaum, Lia, Marsi, Marino, Papalazarou, Evangelos, Perfetti, Luca, Wołoś, Agnieszka, Zhao, Lukas   +11 more
core   +2 more sources