Zobrazeno 1 - 10
of 61
pro vyhledávání: '"H.-J. Mundinger"'
Publikováno v:
Vacuum. 43:545-549
Refrigerator cryopumps are gases by condensation and cryosorption on very cold surfaces. Since the gases are accumulated in the cryopump it has to be regenerated from time to time, depending on the gas flow. In many industrial processes, especially i
Autor:
J. Rosenkranz, Z. Zhang, V. W. Hughes, H. Geerds, W. Schäfer, F. Maas, S Koppe, G. zu Putlitz, S Kirches, M. G. Boshier, Klaus-Peter Jungmann, G. Schiff, W. Schwarz, Volker Ebert, H. J. Mundinger
Publikováno v:
Journal of Non-Crystalline Solids. 145:244-249
Muonium atoms have been observed emerging into vacuum from silica aerogel surfaces with a thermal velocity distribution corresponding to a temperature of 298(10) K after stopping positive muons from a subsurface muon beam. Yields up to 2.3(3)% could
Autor:
W. Schäfer, K.-P. Arnold, W. Schwarz, M. Stickel, H. J. Mundinger, J. Rosenkranz, V. W. Hughes, H. Orth, G. zu Putlitz, J. Hofmann, M. Gladisch
Publikováno v:
Annalen der Physik. 502:667-676
To search for a long living 2S1/2 state in the muonic helium ion at helium gas pressures of 14 and 40 atmospheres, radiative muon transitions were registered in a time resolved mode using sodium iodide crystals. Special care was taken to avoid gas im
Publikováno v:
Vacuum. 46:879-881
For the operation of a refrigerator cryopump a roughing pump is necessary to provide a sufficient low starting pressure prior to cool-down. Usually oil lubricated rotary vane pumps are used for that purpose. However, the demand for a fully hydrocarbo
Autor:
U. Timm, S. Schreck, C. Juhnke, M. Mattern-Klosson, H.-U. Häfner, H.-J. Mundinger, H. H. Klein
Publikováno v:
Vacuum. 44:717-719
According to the PNEUROP-acceptance rules for cryopumps the crossover is defined as the maximum amount of nitrogen (mbar I) which can be pumped by the cryopump within a short interval, whereby the temperature of the cryopanels must not exceed 20 K. M
Publikováno v:
Vacuum. 44:693-695
Many manufacturing processes such as sputtering, ion implantation, MBE and others, rely heavily on cryopumping, mainly because of the inherent advantages such as an especially clean vacuum, very high pumping speeds with respect to water vapour and pr
Autor:
Björn Matthias, J. R. Kane, H. J. Mundinger, Vernon W. Hughes, H. Orth, G. zu Putlitz, M. Eckhause, H. R. Schaefer, S. Kettell, H. E. Ahn, A. Badertscher, F. Chmely, M. T. Witkowski, Y. Kuang, Klaus-Peter Jungmann, B. Ni, K. A. Woodle
Publikováno v:
A Festschrift in Honor of Vernon W Hughes ISBN: 9789810207038
To search for spontaneous conversion of muonium to antimuonium with very low background, a new signature was implemented that required the coincident detection of the decay products of the antimuonium atom, the energetic e- and the atomic e+. No conv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4ae8908593b499b7d3cbee992666600
https://doi.org/10.1142/9789814343107_0032
https://doi.org/10.1142/9789814343107_0032
Autor:
J. R. Kane, H. R. Schaefer, A. Badertscher, Klaus-Peter Jungmann, Vernon W. Hughes, F. Chmely, K. A. Woodle, M. T. Witkowski, M. Eckhause, H. E. Ahn, S. Kettell, G. zu Putlitz, Y. Kuang, B. Ni, H. Orth, Björn Matthias, H. J. Mundinger
Publikováno v:
Physical review letters. 66(21)
To search for spontaneous conversion of muonium to antimuonium with very low background, a new signature was implemented that required the coincident detection of the decay products of the antimuonium atom, the energetic e- and the atomic e+. No conv
Autor:
F. Chmely, H. J. Mundinger, M. T. Witkowski, Klaus-Peter Jungmann, K. A. Woodle, M. Echause, S. Kettell, G. zu Putliz, H. R. Schaefer, J. R. Kane, Björn Matthias, H. Orth, V. W. Hughes, A. Badertscher, Y. Kuang, H. E. Ahn, B. Ni
Publikováno v:
Physical Review Letters. 67:932-932
Autor:
M. Schmolz, Alfred Seeger, W. Jacobs, K. Fürderer, N. Haas, M. Gladisch, D. Herlach, H. J. Mundinger, Hans-Eckhardt Schaefer, J. Rosenkranz, K. P. Döring
Publikováno v:
Hyperfine Interactions. 31:217-222
The transverse spin relaxation of positive muons has been measured on an Al single crystal and on polycrystalline In after irradiation with 2 MeV electrons at 9 K or 11 K, sample transfer at 4.2 K, and various subsequent annealing treatments. The Al