Results 51 to 60 of about 4,518,330 (260)

The Reflection of X-Rays by Crystals

open access: yesNature, 1913
IT is interesting to find that an X-ray bulb having a rhodium antikathode gives off a strong, sharply defined (and therefore very homogeneous) beam which is reflected from the (100) face of rock-salt at a glancing angle of 6.2°.
W. Bragg, W. Bragg
semanticscholar   +1 more source

Photovoltaic effect produced in silicon solar cells by x-rays and gamma rays [PDF]

open access: yes, 1960
The open-circuit voltage and photocurrent produced in a silicon solar cell by X- and gamma rays were measured as a function of exposure dose rate, cell temperature, angle of incidence of radiation, and photon energy.
Scharf, Karl
core   +1 more source

Enhancing the Outcome of Crystallographic Fragment Screening by Choosing the Optimal Protein Crystal Form

open access: yesSmall Science
Improving health and quality of life in our society is a key focus of drug development. Methods for drug discovery are being optimized in multiple ways to reduce costs and timelines.
Tatjana Barthel   +11 more
doaj   +1 more source

Observation of Histone H2AX Phosphorylation by Radiation-Induced Bystander Response Using Titanium Characteristic X-ray Microbeam

open access: yesBiology, 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

The very faint X-ray transient Swift J174610–290018 at the Galactic center

open access: yesAstronomy & Astrophysics
Context. Very faint X-ray transients (VFXTs) are a class of X-ray binary systems that exhibit occasional outbursts with peak X-ray luminosities (LX ≲ 1036 erg s−1) much lower than those of typical X-ray transients.
Stel Giovanni   +19 more
doaj   +1 more source

Content Analysis of General Practitioner Requested Lumbar Spine X-ray Reports [PDF]

open access: yes, 2007
Aims and Background X-rays of patients with low back pain rarely show serious pathology but frequently reveal incidental age-related changes and always expose people to radiation.
Carr, Eloise C.J., Thompson, Paul W.
core   +1 more source

X-ray reflection in a sample of X-ray bright ultraluminous X-ray sources [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2010
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.
Caballero-Garcia, M. D., Fabian, A. C.
openaire   +2 more sources

Use in plant breeding of acute, chronic or fractionated doses of X-rays or fast neutrons as illustrated with leaves of Saintpaulia [PDF]

open access: yes, 1971
The parameters used were survival of irradiated leaves of S. ionantha , production of adventitious plantlets at the base of the petiole and mutation frequency.The differences between unfiltered X-rays from a 250/25 deep therapy apparatus and fast ...
Broertjes, C.
core  

Two-chicane compressed harmonic generation of soft x rays

open access: yesPhysical 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
doaj   +1 more source

Generation of X-Ray Fluctuations in X-Ray Binaries [PDF]

open access: yesInternational Astronomical Union Colloquium, 1996
AbstractShort-term aperiodic fluctuations with 1/f-like power spectral density (PSD), where f is the frequency, are characteristics of X-ray radiation from X-ray binaries. To investigate a mechanism creating fluctuations, we construct a cellular-automaton model for accretion disks based on the concept of self organized criticality (SOC). In this model,
S. Mineshige, M. Takeuchi, H. Negoro
openaire   +1 more source

Home - About - Disclaimer - Privacy