Results 311 to 320 of about 1,208,682 (349)
Some of the next articles are maybe not open access.

Supersoft x-ray sources

AIP Conference Proceedings, 1994
Objects with temperatures on the order of 30 eV and luminosities around 1038 erg/s have been established as a separate class by the recent ROSAT observations. The prototype supersoft x‐ray source (SSS) is the well‐known x‐ray binary CAL83 in the LMC, which has an orbital period of 1.04d.
openaire   +2 more sources

X-ray sources

1982
X-rays are produced whenever electrons are suddenly brought to rest by colliding with matter. It is necessary therefore, for the following conditions to prevail: 1. a means of producing and sustaining a stream of electrons, i.e. a good vacuum, with a source of electrons which in most modern X-ray tubes is a heated filament; 2.
openaire   +1 more source

Plasma X-Ray Radiation Source

Journal of X-Ray Science and Technology: Clinical Applications of Diagnosis and Therapeutics, 1995
This paper gives the results of studies on a plasma x-ray source, which enables one to obtain a 2.5-krad radiation dose per pulse over an area of 100 cm2 in the quantum energy range from 20 to 500 keV. Pulse duration is 100 ns. Spectral radiation distributions from a diode under various operation conditions of a plasma are obtained.
N F, Popkov   +3 more
openaire   +2 more sources

New sources of X Rays

Uspekhi Fizicheskih Nauk, 1971
CONTENTS 1. Pulsed x-ray sources with field emission 61 2. Generators of high-power pulses of x-ray bremsstrahlung 64 3. Generation of x rays in pulsed discharges in air and other gases 66 4.
V A Tsukerman, L V Tarasova, S I Lobov
openaire   +1 more source

X-Ray Sources

2005
X-ray was the name given by W C Roentgen to the highly penetrating rays which emanated when high-energy lectrons struck a meta ltarget. On 8 November 1895, he noted for the first time this phenomenon and on 28 December 1895, he astonished the scientific world with his preliminary report "Ueber eine neue Artvon Strahlen" (along with experimental ...
openaire   +3 more sources

X-ray variability in transient X-ray sources

Il Nuovo Cimento C, 1990
The X-ray variability of transient X-ray binaries is analyzed in terms of the orbital motion of the neutron star, centrifugal inhibition of accretion and of the variable moss loss rate due to activity of the optical counterpart. The systems A0535+26 and V0332+53 are studied in this respect.
D. de Martino   +3 more
openaire   +1 more source

X-Ray Sources

1992
The study of the X-ray emission from M31 is a young field, having its beginnings in the mid-1970’s. By 1991, however, a fairly good understanding of the various sources is at hand. The importance of these sources is the result of the happy fact that M31 is a normal, high-luminosity galaxy; it therefore provides a good opportunity to study the X-ray ...
openaire   +1 more source

X-ray Sources

1980
The development of more powerful sources plays a major role in the overall improvement of X-ray techniques in general and of topography in particular. In recent years some progress has been made to increase the brightness and also the total photon flux of conventional sealed-off X-ray tubes.
openaire   +1 more source

X-Ray Sources

2003
The development of x-ray sources and their applications is described, with special emphasis on high intensities and on short pulse duration.
openaire   +1 more source

X-ray sources

2006
In this chapter, standard stationary-anode, rotating anode and microfocus X-ray tubes are described and the spectra from these tubes are compared with the output from synchrotron-radiation sources. The choice of beam size, X-ray wavelength, spectral composition, intensity, cross fire and beam stability are discussed and a description is given of the ...
openaire   +1 more source

Home - About - Disclaimer - Privacy