Zobrazeno 1 - 10
of 46
pro vyhledávání: '"R W John"'
Autor:
R. W. John
Publikováno v:
Laser and Particle Beams. 16:115-127
In the Compton backscattering of laser light from a high-energy electron beam, the scattered photons are, as is well known, much harder than the incident photons. In connection with the inverse Compton effect, the spectral brightness, the brilliance
Publikováno v:
Plasma Physics and Controlled Fusion. 34:263-271
The authors have numerically simulated previously-reported experiments first demonstrating soft-X-ray gain in the 3 to 2 transition in hydrogenic sodium ions at 54.2 AA and find a good agreement with the measured time evolution of this gain. Addition
Autor:
R. W. John, W. Brunner
Publikováno v:
Laser and Particle Beams. 9:817-828
To investigate the influence of radiation reabsorption on the level populations of ions in an expanding laser-produced plasma of intermediate density, we start with the system of rate equations for the population densities coupled with the line-radia
Publikováno v:
Applied Physics B Photophysics and Laser Chemistry. 50:291-296
We investigate from a theoretical point of view the basic possibilities for the effect of ionizing radiation on the X-ray gain in recombining laser-produced plasmas, in particular with regard to recently performed experiments in which targets consist
Autor:
W. Brunner, R. W. John
Publikováno v:
Laser Interaction and Related Plasma Phenomena ISBN: 9781461364641
In optimizing X-ray laser schemes based on laser-produced plasmas, a precise prediction of the amount of radiation trapping and its influence on the gain is of current interest (cf. 1, 2 | ). The re-absorption of resonance radiation from the lower la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::861fdb796f265b0408f91d378d67ef12
https://doi.org/10.1007/978-1-4615-3324-5_11
https://doi.org/10.1007/978-1-4615-3324-5_11
Autor:
R. W. John
Publikováno v:
Astronomische Nachrichten: A Journal on all Fields of Astronomy. 308:9-26
Zunachst wird die mathematisch-physikalische Bedeutung kovarianter Greenscher Funktionen im relativistischen Gravitationsfeld-gemas EINSTEIN: auf gekrummter Raum-Zeit-in Verbindung mit ihrer Konstruktion nach HADAMARD erortert. Sodann werden fur den
Autor:
H. J. Haubold, R. W. John
Publikováno v:
Astronomische Nachrichten. 300:63-75
The central problem in the theory of stellar nucleosynthesis (and in reaction theory of controlled thermonuclear fusion as well) is the determination of thermonuclear reaction rates. Continuing our preceding paper on closed-form evaluation of nonreso
Autor:
H. J. Haubold, R. W. John
Publikováno v:
Astronomische Nachrichten. 303:161-187
Wir schlagen vor, die Integrationstheorie spezieller Funktionen zur analytischen Auswertung von Reaktionsraten auszunutzen, und zeigen fur den speziellen Fall thermonuklearer Reaktionen in einem nichtentarteten nichtrelativistischen Plasma, das sich
Publikováno v:
Il Nuovo Cimento B. 99:67-75
A quantum system is considered in the gravitational field of a rotating massive body. In the weak-field approximation, it is shown that even then if the rotation-generated part of the space-time curvature is localized to a region inaccessible to the
Autor:
R. W. John
Publikováno v:
Astronomische Nachrichten. 301:277-283
A scalar wave equation is considered on the background of some Bianchi-type I universe with regard to which its time-symmetric Green's function can be obtained exactly (NARIAI 1977). THE EXPLICITLY KNOWN GREEN'S FUNCTION CONSTITUENTS ARE EXPANDED UP