Results 61 to 70 of about 1,914,697 (336)

Multi-Lane Mirror for Broadband Applications of the Betatron X-ray Source

Photonics, 2021
A new generation of small-scale ultrafast X-ray sources is rapidly emerging. Laser-driven betatron radiation represents an important class of such ultrafast X-ray sources. With the sources driving towards maturity, many important applications in material
Marek Raclavský, Krishna P. Khakurel, Uddhab Chaulagain, Marcel Lamač, Jaroslav Nejdl   +4 more
doaj   +1 more source

Enhanced analysis of gating latency in 0.35T MR‐linac through innovative time synchronization of a motion phantom and plastic scintillation detector

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to evaluate how different gantry angles, breathing rates (BPM), cine image speeds, and tracking algorithms affect beam on/off latency and the subsequent impact on target dose for a 0.35T MR‐Linac with a 6 MV FFF beam.
Mateb Al Khalifa, Tianjun Ma, Haya Aljuaid, Siyong Kim, William Y. Song   +4 more
wiley   +1 more source

Optics for Nano-Satellite X-Ray Monitor

Open Astronomy, 2015
The Schmidt lobster eye design for a grazing incidence X-ray optics provides a field of view of the order of many degrees, for this reason it can be a convenient approach for the construction of space X-ray monitors.
Tichý Vladimír, Burrows David N., Prieskorn Zachary, Hudec René   +3 more
doaj   +1 more source

X-ray and optical wave mixing

Nature, 2012
Light-matter interactions are ubiquitous, and underpin a wide range of basic research fields and applied technologies. Although optical interactions have been intensively studied, their microscopic details are often poorly understood and have so far not been directly measurable. X-ray and optical wave mixing was proposed nearly half a century ago as an
Thornton E. Glover, Matthias Fuchs, Yiping Feng, Ryan Coffee, Sinisa Coh, Sinisa Coh, David A. Reis, David A. Reis, Diling Zhu, Marco Cammarata, David Fritz, Thomas K. Allison, Sharon Shwartz, Jerome B. Hastings, Stephen E. Harris, Henrik T. Lemke, Jie Chen, Jie Chen, Jan M. Feldkamp, Shambhu Ghimire   +19 more
openaire   +4 more sources

AAPM medical physics practice guideline 13.a: HDR brachytherapy, part B

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract The goal of this report is to assist the clinical medical physicist in assuring that key quality standards and practice considerations are met to ensure safe, reliable, and reproducible high dose rate (HDR) brachytherapy (BT) treatment. This guideline has been developed to provide appropriate minimum standards for such services.
Susan L. Richardson, Arjit K. Baghwala, Gil'ad N. Cohen, Claire Dempsey, Bruce Libby, Christopher S. Melhus, Robin A. Miller, Daniel J. Scanderbeg, Samantha J. Simiele   +8 more
wiley   +1 more source

Radiotherapy medical physics in the Philippines: A contemporary overview

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose With cancer ranking as the third leading cause of death in the Philippines and a disparity in healthcare resources across regions, this research aimed to assess the state of radiotherapy medical physics in the country. Methodology The study utilized a comprehensive online survey with 94 structured questions answered by 19 clinics ...
John Paul C. Cabahug, Ramon Carlo Cruzpero, Luis E. Fong de los Santos, Eric C. Ford, Afua A. Yorke   +4 more
wiley   +1 more source

Advanced environmental control as a key component in the development of ultrahigh accuracy ex situ metrology for x-ray optics

, 2015
. The advent of fully coherent free-electron laser and diffraction-limited synchrotron radiation storage ring sources of x-rays is catalyzing the development of new ultrahigh accuracy metrology methods.
V. Yashchuk, N. Artemiev, I. Lacey, W. McKinney, H. Padmore   +4 more
semanticscholar   +1 more source

Accuracy and reproducibility of a single‐pose image‐to‐robot registration method for mobile C‐arm cone beam CT guided histotripsy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Histotripsy is a focal tumor therapy that utilizes focused ultrasound (US) to mechanically destroy tissue. To overcome visualization limitations of diagnostic US‐guidance, C‐arm cone beam CT (CBCT)‐guided histotripsy is being developed, for which a mobile C‐arm could increase accessibility. CBCT‐guided histotripsy uses a phantom with a
Grace M. Minesinger, Paul F. Laeseke, Katrina L. Falk, Claire E. Hennen, Michael A. Speidel, Martin G. Wagner   +5 more
wiley   +1 more source

Dynamics of the Bloch point in an asymmetric permalloy disk

Nature Communications, 2019
The intrinsic nature and dynamics of a Bloch point has not been verified so far. Here, Im et al. report the realization and dynamical character of steady-state Bloch points in the magnetic vortex cores in asymmetrically shaped Ni80Fe20 nanodisks.
Mi-Young Im, Hee-Sung Han, Min-Seung Jung, Young-Sang Yu, Sooseok Lee, Seongsoo Yoon, Weilun Chao, Peter Fischer, Jung-Il Hong, Ki-Suk Lee   +9 more
doaj   +1 more source

SARS‐CoV‐2 Is Linked to Brain Volume Loss in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The impact of SARS‐CoV‐2 infection on brain and spinal cord pathology in patients with multiple sclerosis (pwMS) remains unclear. We aimed to describe changes in brain lesion activity and brain and spinal cord volumes following SARS‐CoV‐2 infection.
Tomas Uher, Dominika Stastna, Ingrid Menkyova, Vaclav Capek, Jiri Lindner, Petra Nytrova, Jan Krasensky, Eliza Varju, Miguel D'haeseleer, Eva Kubala Havrdova, Dana Horakova, Manuela Vaneckova, Niels Bergsland   +12 more
wiley   +1 more source