Zobrazeno 1 - 10
of 110
pro vyhledávání: '"H.L. Bay"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 15:49-53
Concentration profiles of 4He implanted with energies of 0.25–80 keV in silicon have been measured. The method employed-ion beam sputter erosion in conjunction with the mass spectrometric detection of sputter released He atoms-offers several advant
Publikováno v:
Applied Physics A Solids and Surfaces. 43:147-151
Sputtering investigations of an Al/Li alloy containing 9.1 at-% of lithium have been performed for 6 keV helium ion bombardment. Absolute particle densities and velocity distributions of the sputtered neutral lithium atoms were measured with laserind
Autor:
P. Leismann, Friedrich Aumayr, E. Hintz, R.P. Schorn, B. Schweer, Y.T. Lit, H.L. Bay, A. Pospieszczyk, D. Rusbüldt, G.G. Ross, Hannspeter Winter
Publikováno v:
Journal of Nuclear Materials. :574-581
Li-atom beams with velocities of 1.5 × 105 cm/s and 1× 106 cm/s have been used to measure ne profiles in the density range 1011–1013 cm−3 from the Li line emission with a spatial resolution of about 1 mm. Injecting in addition a different type
Autor:
J. Bohdansky, H.L. Bay
Publikováno v:
Applied Physics. 19:421-426
The sputtering yield of Ni, Mo, and Au have been measured at oblique angles of incidence for H+-, D+-, and4He+-ion irradiation in the energy region from 1 to 8 keV. The yields were determined from the weight loss of the targets. For Ni and Mo the dep
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 5:1194-1197
Sputtered neutral mass spectrometry is shown to be a very sensitive, depth‐differential technique for the analysis of helium in solids. Detection limits in nickel are some 10 ppm for near‐surface He distributions and can be lowered to a few ppm i
Publikováno v:
Journal of Nuclear Materials. :163-167
The sputtering yields of graphite, B4 C, SiC and TiC have been measured at normal incidence for H, D and 4He ions in the energy range between 100 and 8 keV. The yields are energy dependent and display a maximum for all target-ion combinations in the
Publikováno v:
Journal of Nuclear Materials. :674-680
The density and pressure of He in small bubbles (diameter d ≳ 1 nm ) were investigated by electron energy loss spectroscopy (EELS) and transmission electron microscopy (TEM). Thin films (50–100 nm) of Al and Ni were homogeneously implanted with H
Autor:
L. H. Wei, H. Conrads, P. Wienhold, F. Hoenen, H.L. Bay, U. Samm, J. Schlüter, M Korten, G. Waidmann, B. Schweer, G. H. Wolf, H. Soltwisch, G. Bertschinger, A. Kaleck, A. Pospieszczyk, K.H. Dippel, L. Könen, B Giesen, Nobuaki Noda, J. Winter, P. Bogen, M Lochter, E. Graffmann, Francois Waelbroeck, E. Hintz, H. Gerhauser, G. Fuchs
Publikováno v:
Plasma Physics and Controlled Fusion. 26:23-35
The paper summarizes the main results obtained during the first six months of experimental work on TEXTOR with ohmically heated plasmas. The machine(R = 175 cm; a = 45-50 cm) was operated at wall temperatures up to 303 oC with hydrogen gas, a toroida
Autor:
P. Bogen, H. Hartwig, G.G. Ross, E. Hintz, D. Rusbüldt, B. Schweer, U. Samm, A. Pospieszczyk, H.L. Bay, K. Höthker, Y T Lie
Publikováno v:
Plasma Physics and Controlled Fusion. 29:1321-1332
The relations between plasma wall interaction and plasma core properties are studied by spectroscopic methods applied to the emission of neutral particles at the plasma boundary. The interdependence between the structure of the scrape-off layer (SOL)
Publikováno v:
Journal of Nuclear Materials. :396-401
Beam analysis of a 10 keV hydrogen and helium beam produced by a duopigatron source were carried out by sampling the contaminants in successive shots in a pyrolytic carbon probe. The subsequent analysis of the probe by Auger electron spectroscopy and