Zobrazeno 1 - 10
of 89
pro vyhledávání: '"K. Hohmuth"'
Autor:
B. Rauschenbach, K. Hohmuth
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 46:276-283
Polycrystalline superconducting thin films of Y-Ba-Cu oxides have been prepared by vapour deposition of alternate layers of Y, Ba and Cu, followed by oxygen or xenon ion beam induced mixing and short-term post-annealing at temperatures up to 800 ° C
Autor:
B. Rauschenbach, K. Hohmuth
Publikováno v:
Materials Science Forum. :223-224
Publikováno v:
Radiation Effects. 63:67-71
In the system of boron and carbon, the formation of boron carbide was investigated after ion implantation of 25 keV B ions into carbon or of 25 keV C ions into boron and subsequent annealing. TEM and electron diffraction studies showed that the cryst
Publikováno v:
Materials Science and Engineering. 69:191-201
The effect of metalloid ion implantation on the fatigue behaviour and wear of nickel and two steels has been investigated. These metals were implanted with boron, carbon and nitrogen ions at energies from 30 to 60 keV and with doses from 1 × 1016 to
Autor:
K Hohmuth, B Rauschenbach
Publikováno v:
Materials Science and Engineering. 69:489-499
Polycrystalline targets of titanium were implanted with nitrogen ions at energies from 30 to 60 ke V and with doses as high as 1 × 1018 N+ ions cm−2 at room temperature. The distributions of nitrogen and carbon were determined by Auger electron sp
Publikováno v:
Nuclear Instruments and Methods in Physics Research. 191:373-378
The 12 C(p , γ) 13 N reaction near the 457 keV, Γ = 36 keV resonance was used to investigate simultaneously carbon layers on the surface and at the interfaces of solids. The large resonance width and depth dependent proton energy within a thick tar
Autor:
B. Rauschenbach, K. Hohmuth
Publikováno v:
Physica Status Solidi (a). 79:395-401
Experimental investigations show that under heavy ion bombardment the sputtering yield is significantly higher than predicted by linear cascade theory. A shock wave model is applied to explain the sputtering yield on heavy target materials. On this b
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 23:316-322
Surface compositions and microstructures of iron implanted with nitrogen ions to high fluences between 1×10 17 and 1×10 18 N + -ions/cm 2 at the temperature of liquid nitrogen have been examined by Auger electron spectroscopy, high-voltage electron
Autor:
B. Rauschenbach, K. Hohmuth
Publikováno v:
Annalen der Physik. 498:233-242
Die Ionenstrahl-induzierte Mischung der Dunnfilm-Systeme CuAg und CrFe nach Bestrahlung mit energiereichen Xe-und Ar-Ionen bei Raumtemperatur wurde untersucht. Die Praparation der Multischicht-Systeme, die aus dunnen Filmen der beiden Elemente besteh
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 273:904-907
A positron tomograph for radiopharmaceutical and medical research is under construction. In its final stage it will cover six high-density avalanche chambers (HIDAC) in a hexagonal arrangement. Each detector with a sensitive area of 50 × 28 cm 2 wil