Zobrazeno 1 - 10
of 49
pro vyhledávání: '"D. Schleussner"'
Publikováno v:
Vacuum. 82:431-434
Current “Non-evaporable getters” (NEGs) are important for the improvement of vacuum by the help of metallic surface sorption of residual gas molecules. High porosity alloys or powder mixtures of Zr, Ti, Al, V, Fe and other metals are the base mat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55b45c2cec7acd538e110b683ddc2339
https://doi.org/10.1016/j.vacuum.2007.07.063
https://doi.org/10.1016/j.vacuum.2007.07.063
Autor:
D. Schleussner, Wolfram Knapp
Publikováno v:
Vacuum. 69:333-338
We investigated Carbon Buckypaper with respect to field emission properties, especially long-term field emission stability and under well-defined stress conditions. The Carbon Buckypaper field emitters showed a threshold field strength of about 1 V
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::202e0ef4c65218df0d047ecbe3ad954e
https://doi.org/10.1016/s0042-207x(02)00354-8
https://doi.org/10.1016/s0042-207x(02)00354-8
Publikováno v:
Vacuum. 69:339-344
Field electron emission from carbon fibres has been investigated. Measured current–voltage characteristics followed the Fowler–Nordheim equation. A cathode ray tube lighting element of a triode vacuum tube was manufactured as an application of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17103172a3e53ea83b3cdd85e929fe91
https://doi.org/10.1016/s0042-207x(02)00355-x
https://doi.org/10.1016/s0042-207x(02)00355-x
Autor:
Ch. Edelmann, Carmen García-Rosales, R. Behrisch, P. Franzen, Wolfram Knapp, James Becker, D. Schleussner, D. Rosler
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 17:2785-2790
An experimental setup that allows quantitative measurements of the temperature programmed desorption of different gases from any sample is described. The samples to be analyzed are uniformly heated to temperatures up to 2100 K by electron bombardment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f58a24407b24d25ba9e1defd7530dbd
https://doi.org/10.1116/1.581945
https://doi.org/10.1116/1.581945
Autor:
D Schleußner, H Maier, P Franzen, R Behrisch, M Balden, null The ASDEX-Upgrade Team, M Perl, W Knapp, Chr Edelmann
Publikováno v:
Journal of Nuclear Materials. :1296-1302
The total hydrogen isotope inventories in the tungsten coated divertor tiles of ASDEX-Upgrade were measured by thermal desorption spectroscopy (TDS) and - in the near surface region - by nuclear reaction analysis (NRA). The highest amounts of deuteri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af779a105708fa4ee4bd48cf732e3ee9
https://doi.org/10.1016/s0022-3115(98)00570-4
https://doi.org/10.1016/s0022-3115(98)00570-4
Autor:
R. Behrisch, D. Schleussner, W. Knapp, Carmen García-Rosales, C. Edelmann, P. Franzen, D. Rosler, James Becker
Publikováno v:
Nuclear Fusion. 37:1375-1393
The hydrogen and deuterium inventories of the ASDEX Upgrade divertor tiles were measured after the experimental period from December 1994 to July 1995 by thermal desorption spectroscopy (TDS) of samples cut out of the divertor tiles. The samples were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b092b1455baa4b0f1ca772d6ed86fb46
https://doi.org/10.1088/0029-5515/37/10/i05
https://doi.org/10.1088/0029-5515/37/10/i05
Autor:
Oliver Kieler, Ralf Behr, F. Muller, Luis Palafox, Johannes Kohlmann, J. Niemeyer, M. F. Beug, Jürgen Schurr, D. Schleussner
Publikováno v:
2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves.
The report describes the most recent PTB developments and applications of large Josephson arrays for the generation of very precise sine waves and arbitrary waveforms. By means of large70 GHz sine-wave-driven binary arrays, AC voltages with frequenci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a68892998662c452449d4bbb86d7a368
https://doi.org/10.1109/msmw.2013.6622163
https://doi.org/10.1109/msmw.2013.6622163
Publikováno v:
Vakuum in Forschung und Praxis. 7:57-62
A system for the measurement of the outgassing rate using the modified throughput method, the so-called difference method, was completed by a sample heater to measure the outgassing of small metal samples at elevated temperatures. It was shown that b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35116469250ada3c7e58b46a0ad4feaf
https://doi.org/10.1002/vipr.19950070111
https://doi.org/10.1002/vipr.19950070111
Publikováno v:
2012 Conference on Precision electromagnetic Measurements.
In this paper the combination of a programmable Josephson voltage standard and a Josephson arbitrary waveform synthesizer is discussed with the aim of generating spectrally pure, quantum based waveforms with amplitudes larger than 1 V. A first proof-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd8305719e6d1fbdef19ab57260b36ba
https://doi.org/10.1109/cpem.2012.6250657
https://doi.org/10.1109/cpem.2012.6250657
Publikováno v:
CPEM 2010.
The Josephson Arbitrary Waveform Synthesizer (JAWS) has been further developed towards a less complex and more easy-to-use system. Distortion free frequency spectra were realized showing a signal-to-noise ratio of more than −120 dBc and providing a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce321abfd86c7179a29478b44332df21
https://doi.org/10.1109/cpem.2010.5544751
https://doi.org/10.1109/cpem.2010.5544751