Results 101 to 110 of about 498,478 (298)

STUDY OF IMPACT CARBON MATTER OF THE KARA ASTROBLEME BY SMALL-ANGLE SCATTERING OF SYNCHROTRON RADIATION [PDF]

Минералогия, 2018
The study of the metamorphosed carbonaceous matter (MCM) of the Kara astrobleme (PayKhoy, Russia) by the methods of small-angle scattering of X-ray synchrotron radiation (SAXS) and high resolution transmission electron microscopy (HRTEM) is described ...
V.V. Ulyashev, A.A. Veligzhanin, T.G. Shumilova, B.A. Kulnitskiy, I.A. Perezhogin, V.D. Blank   +5 more
doaj  

UR‐cycleGAN: Denoising full‐body low‐dose PET images using cycle‐consistent Generative Adversarial Networks

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to develop a CycleGAN based denoising model to enhance the quality of low‐dose PET (LDPET) images, making them as close as possible to standard‐dose PET (SDPET) images. Methods Using a Philips Vereos PET/CT system, whole‐body PET images of fluorine‐18 fluorodeoxyglucose (18F‐FDG) were acquired from 37 patients to ...
Yang Liu, ZhiWu Sun, HaoJia Liu
wiley   +1 more source

Monolithically integrated wide field-of-view metalens by angular dispersionless metasurface

Materials & Design
Meta-lenses, which are made by sub-wavelength metallic or dielectric elements, have attracted widespread attentions due to its unprecedented electromagnetic wave manipulation abilities and novel applications.
Yong-Qiang Liu, Yong Zhu, Yan Wang, Zhongru Ren, Hongcheng Yin, Kainan Qi, Jinhai Sun   +6 more
doaj  

Beam model development and clinical experience with RadCalc for treatment plan quality assurance in online adaptive workflow with an MR‐linac

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The aim of this work was to report on the optimization, commissioning, and validation of a beam model using a commercial independent dose verification software RadCalc version 7.2 (Lifeline Software Inc, Tyler, TX, USA), along with 4 years of experience employing RadCalc for offline and online monitor unit (MU) verification on the ...
Urszula Jelen, Zoë Moutrie, Jack D Aylward, Michael G Jameson   +3 more
wiley   +1 more source

Radiation reaction force induced nonlinear mixing of Raman sidebands of an ultra-intense laser pulse in a plasma

, 2013
Stimulated Raman scattering of an ultra-intense laser pulse in plasmas is studied by perturbatively including the leading order term of the Landau-Lifshitz radiation reaction force in the equation of motion for plasma electrons.
Hatsagortsyan, Karen Z., Keitel, Christoph H., Kumar, Naveen   +2 more
core   +1 more source

Dosimetric evaluation and clinical application of collimated apertures with proton beam line scanning in stereotactic radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Stereotactic radiotherapy (SRT) is a highly effective treatment with precision for small, localized lesions. Proton therapy, characterized by the Bragg peak, offers superior dose conformity compared to photon‐based approaches. However, challenges remain in minimizing lateral penumbra and optimizing dose delivery, particularly for small
Chen‐Yu Chou, Hsiao‐Chieh Huang, Shen‐Hao Lee, Shih‐Ming Hsu   +3 more
wiley   +1 more source

Non Linear Compton Scattering of Strong Laser Radiation on Channeled Particles in a Crystal

, 2001
A version for intense $\gamma $-ray radiation based on the multiphoton scattering of strong laser radiation on relativistic particle beam channeled in a crystal is proposed.
A.K Avetissian, Akhiezer, Andreev, Avetissian, Avetissian, Avetissian, Bazylev, Bazylev, Bazylev, Beloshicky, Beloshicky, G.F Mkrtchian, K.Z Hatsagortsian, Kalman, Kh.V Sedrakian, Kumakhov, Kumakhov, Kurizki, Pantell, Ritus, Ternov, Tulupov, Tulupov, Tulupov, Walker   +24 more
core   +1 more source

Localization accuracy of 6‐second CBCT for lung IGRT with various breathing patterns

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The 6‐second cone beam computed tomography (CBCT) acquisition of the Ethos HyperSight (Varian Medical Systems, Inc. Palo Alto, CA, USA) on‐board imaging system offers benefits, but could be too fast to accurately capture an average target position in a free‐breathing lung cancer patient. This study aimed to ascertain whether a 6‐second
Jihye Koo, Gage Redler, Vladimir Semenenko, Stephen A. Rosenberg, Emily Keit, Jacqueline M. Andreozzi   +5 more
wiley   +1 more source

Scattering of Low-Frequency Radiation by a Gyrating Electron

, 2007
The scattering of electromagnetic radiation by the particle gyrating in an external magnetic field is considered. Particular attention is paid to the low-frequency case, when the frequencies of incident radiation are much less than the electron ...
Arendt, Baring, Beloborodov, Blandford, Blandford, Braude, Börner, Börner, Canuto, Canuto, Daugherty, Daugherty, Fernández, Fussell, Gangadhara, Goldstein, Gonthier, Gradshteyn, Gunn, Harding, Harding, Harding, Harding, Herold, Hibschman, Hibschman, Konovalenko, Landau, Lominadze, Lommen, Luo, Luo, Luo, Lyubarskii, Lyubarskii, Lyubarskii, Lyubarskii, Lyubarskii, Lyutikov, Lyutikov, Melrose, Melrose, Petrova, Petrova, Petrova, Petrova, Rea, Rees, S. A. Petrova, Stappers, Sturner, Sturner, Thompson, Ventura, Wilson, Xia   +55 more
core   +1 more source

The Potential for Extracellular Vesicles in Nanomedicine: A Review of Recent Advancements and Challenges Ahead

Advanced Biology, EarlyView.
Extracellular vesicles (EVs) play a dual role in diagnostics and therapeutics, offering innovative solutions for treating cancer, cardiovascular, neurodegenerative, and orthopedic diseases. This review highlights EVs’ potential to revolutionize personalized medicine through specific applications in disease detection and treatment.
Farbod Ebrahimi, Anjali Kumari, Samaneh Ghadami, Saqer Al Abdullah, Kristen Dellinger   +4 more
wiley   +1 more source