Results 61 to 70 of about 7,656,672 (272)
Mallick et al. (2012, https://doi.org/10.1029/2012JD017555) discovered that subsequent‐stroke leaders in natural negative lightning could be more prolific producers of hard X‐rays and gamma rays than the first‐stroke leader in the same flash.
M. D. Tran+3 more
doaj +1 more source
High energy X-rays (115.56 keV) were used to measure the HIPed interface of F82H steel. The X-ray energy spectra of the samples were analyzed focusing on W and Ta fluorescence X-rays, Compton scattering and elastic scattering X-rays.
Hiroshi Sakurai+11 more
doaj +1 more source
Solar X-ray spectrum reproduced in vacuum [PDF]
Desired low energy X rays are produced by modifying commercial ion tubes and combining them with standard power supplies and control circuitry.
Erdman, C. A., Kirchner, L. P.
core +1 more source
This article delves into the generation and modulation process of X-rays as high-energy photon sources. Using the principles of classical electrodynamics, this study enables nonrelativistic short pulse lasers to collide with high-energy electrons while ...
Mingjing Zeng+3 more
doaj +1 more source
X-ray pulsars shine thanks to the conversion of the gravitational energy of accreted material to X-ray radiation. The accretion rate is modulated by geometrical and hydrodynamical effects in the stellar wind of the pulsar companions and/or by instabilities in accretion discs.
Roland Walter, Carlo Ferrigno
openaire +2 more sources
X-ray reflection in a sample of X-ray bright ultraluminous X-ray sources [PDF]
We apply a reflection-based model to the best available XMM-Newton spectra of X-ray bright UltraLuminous X-ray (ULX) sources (NGC 1313 X-1, NGC 1313 X-2, M 81 X-6, Holmberg IX X-1, NGC 5408 X-1 and Holmberg II X-1). A spectral drop is apparent in the data of all the sources at energies 6-7 keV.
Andrew C. Fabian, M. D. Caballero-Garcia
openaire +4 more sources
X-ray source uses interchangeable target anodes to vary X-ray wavelength [PDF]
Compact laboratory X ray tube generates X rays of various wavelengths by using interchangeable target anodes.
Shields, R. A.
core +1 more source
Crystallization of the regulatory and effector domains of the key sporulation response regulator Spo0A [PDF]
The key response-regulator gene of sporulation, spo0A, has been cloned from Bacillus stearothermophilus and the encoded protein purified. The DNA-binding and phospho-acceptor domains of Spo0A have been prepared by tryptic digestion of the intact protein ...
Barak, I+7 more
core +1 more source
X-rays from Radio-Galaxies: BeppoSAX Observations [PDF]
We briefly review BeppoSAX observations of X-ray bright radio-galaxies. Their X-ray spectra are quite varied, and perhaps surprisingly, any similarity between radio-loud AGN and Seyfert galaxies is the exception rather than the rule.
C.M Urry+14 more
core +3 more sources
Solution of a uniqueness problem in the discrete tomography of algebraic Delone sets [PDF]
We consider algebraic Delone sets $\varLambda$ in the Euclidean plane and address the problem of distinguishing convex subsets of $\varLambda$ by X-rays in prescribed $\varLambda$-directions, i.e., directions parallel to nonzero interpoint vectors of ...
Huck, Christian, Spiess, Michael
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