Results 151 to 160 of about 1,847,375 (374)

Design and validation of a novel dosimetry phantom for motion management audits

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background We present a novel phantom design for conducting end‐to‐end dosimetry audits for respiratory motion management of two anatomical treatment sites. The design enables radiochromic film measurements of the dose administered to the target throughout the respiratory cycle (motion‐included) and the dose delivered to the time‐averaged ...
Alex Burton, Sabeena Beveridge, Nicholas Hardcastle, Silvio Malfitana, Janaka Madamperuma, Rick Franich   +5 more
wiley   +1 more source

A Python package for fast GPU‐based proton pencil beam dose calculation

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Open‐source GPU‐based Monte Carlo (MC) proton dose calculation algorithms provide high speed and unparalleled accuracy but can be complex to integrate with new applications and remain slower than GPU‐based pencil beam (PB) methods, which sacrifice some physical accuracy for sub‐second plan calculation.
Mahasweta Bhattacharya, Calin Reamy, Heng Li, Junghoon Lee, William T. Hrinivich   +4 more
wiley   +1 more source

Distributed Fiber Optics Strain Measurements for Monitoring Geotechnical Structures [PDF]

, 2008
Recent advances in strain measurement using optical fibers provide new opportunities for monitoring the performance of geotechnical structures during and after construction.
Bennett, Peter J., Mohamad, Hisham, Soga, Kenichi   +2 more
core   +1 more source

High-Fidelity Optical Monitoring of Laser Powder Bed Fusion via Aperture Division Multiplexing [PDF]

arXiv
Qualification of high-performance metal components produced by laser powder bed fusion (LPBF) must identify process-induced porous defects that reduce ductility and nucleate fatigue cracking. Detecting such defects via optical monitoring of LPBF provides a path towards in-process quality control without downstream testing such as by computed tomography.
arxiv  

Optical performance monitoring using lifelong learning with confrontational knowledge distillation in 7-core fiber for elastic optical networks

, 2022
Xu Zhu, Bo Liu, Jianxin Ren, Xiaorong Zhu, Yaya Mao, Xiangyu Wu, Ying Li, Yongfeng Wu, Lilong Zhao, Tingting Sun, Rahat Ullah, Yunyun Chen   +11 more
openalex   +1 more source

Clinical validation of myOSLchip: A beryllium oxide optically stimulated luminescent dosimeter (OSLD) system in radiotherapy dosimetry

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract In radiation oncology, inter‐fractional dosimetry using optically stimulated luminescent detectors (OSLDs) ensures accurate plan delivery and patient safety. RadPro International GmbH's myOLSchip system, featuring a beryllium oxide (BeO) OSL dosimeter, reader, and eraser, was characterized and calibrated with a Varian Truebeam for in‐vivo ...
Heath Davis, Jeffrey V. Siebers, Krishni Wijesooriya, Matt Mistro   +3 more
wiley   +1 more source

Water system virus detection [PDF]

, 1978
The performance of a waste water reclamation system is monitored by introducing a non-pathogenic marker virus, bacteriophage F2, into the waste-water prior to treatment and, thereafter, testing the reclaimed water for the presence of the marker virus.
Fraser, A. S., Tenoso, H. J., Wells, A. F.   +2 more
core   +1 more source

Functionality Enhancement of Industrialized Optical Fiber Sensors and System Developed for Full-Scale Pavement Monitoring

Sensors, 2014
Pavements always play a predominant role in transportation. Health monitoring of pavements is becoming more and more significant, as frequently suffering from cracks, rutting, and slippage renders them prematurely out of service.
Huaping Wang, Wanqiu Liu, Jianping He, Xiaoying Xing, Dandan Cao, Xipeng Gao, Xiaowei Hao, Hongwei Cheng, Zhi Zhou   +8 more
doaj   +1 more source

Optical performance monitoring based on 2-D phase portrait generated by single-channel sampling technique [PDF]

, 2016
Changyuan Yu, Yi Yu, Xiaodong Fu
openalex   +1 more source

Evaluation of internal target volume of abdominal tumors using cine‐MRI

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction The detailed anatomy visualization with magnetic resonance (MR)‐guided radiotherapy is particularly attractive for abdominal treatments, but patient respiratory motion can compromise image quality. The “navigator technique” produces high‐quality 3D images, triggered by diaphragm displacement, in exhale phase only.
Jessica Lye, Reza Alinaghi‐Zadeh, Sandie Fisher, Nikki Shelton, Glenn Cahoon, Leah McDermott, Richard Khor, Kym Rykers, Sweet Ping Ng   +8 more
wiley   +1 more source