Results 21 to 30 of about 1,038,073 (282)
Biology, 2023 Radiation-induced bystander response (RIBR) is a response induced in non-irradiated cells that receive bystander signals from directly irradiated cells. X-ray microbeams are useful tools for elucidating the mechanisms underlying RIBR. However, previous X-
Masanori Tomita +3 more
doaj +1 more source
Sources of X-rays from galaxies [PDF]
, 2011 Galactic X-ray emission is a manifestation of various high-energy phenomena and processes. The brightest X-ray sources are typically accretion-powered objects: active galactic nuclei and low- or high-mass X-ray binaries.
Liu +10 more
core +1 more source
European Radiology Experimental, 2023 Background Chest x-ray is commonly used for pulmonary abnormality screening. However, since the image characteristics of x-rays highly depend on the machine specifications, an artificial intelligence (AI) model developed for specific equipment usually ...
Heejun Shin +9 more
doaj +1 more source
Simultaneous optical polarimetry and X-ray observations of the magnetic CV CP Tuc (AX J2315--592) [PDF]
, 1999 CP Tuc (AX J2315--592) shows a dip in X-rays which lasts for approximately half the binary orbit and is deeper in soft X-rays compared with hard X-rays. It has been proposed that this dip is due to the accretion stream obscuring the accretion region from
Buckley, David +3 more
core +3 more sources
X-ray Observations at Gaisberg Tower
Atmosphere, 2018 We report the occurrence of X-rays at ground level due to cloud-to-ground flashes of upward-initiated lightning from Gaisberg Tower, in Austria, which is located at an altitude of 1300 m.
Pasan Hettiarachchi +5 more
doaj +1 more source
Dose-Response, 2020 Background: We aimed to reveal if low dose X-rays would induce harmful or beneficial effect or dual response on biological cells and whether there are conditions the radiation can enhance gene transfer efficiency and promote cell growth but without ...
Zhuo Wang, Ming-Yue Lv, Yao-Xiong Huang
doaj +1 more source
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 +4 more
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Two-chicane compressed harmonic generation of soft x rays
Physical Review Special Topics. Accelerators and Beams, 2011 Seeding an electron bunch prior to compression simultaneously shifts the laser modulation to shorter wavelengths while decreasing the required modulation amplitude. The final x-ray wavelength is then tunable by controlling the compression factor with the
Daniel Ratner, Alex Chao, Zhirong Huang
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The rate of X-ray-induced DNA double-strand break repair in the embryonic mouse brain is unaff ected by exposure to 50 Hz magnetic fi elds [PDF]
, 2015 Following in utero exposure to low dose radiation (10 – 200 mGy), we recently observed a linear induction of DNA double-strand breaks (DSB) and activation of apoptosis in the embryonic neuronal stem/progenitor cell compartment.
Ahlbom IC +30 more
core +2 more sources
Photonic band gap and x-ray optics in warm dense matter
, 2010 Photonic band gaps for the soft x-rays, formed in the periodic structures of solids or dense plasmas, are theoretically investigated. Optical manipulation mechanisms for the soft x-rays, which are based on these band gaps, are computationally ...
Joannopoulos J. D. +4 more
core +1 more source