Zobrazeno 1 - 10
of 53
pro vyhledávání: '"K. H. Kaiser"'
Autor:
St. Schumann, Kurt Aulenbacher, S. Ratschow, Andreas Jankowiak, Anthony W. Thomas, M. Seidl, H.J. Kreidel, F. Hagenbuck, G. Stephan, M. Negrazus, R. Herr, P. Jennewein, K. H. Kaiser, O. Chubarov, U. Ludwig-Mertin, M. Dehn, H. Euteneuer
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 593:159-170
At the Institut fur Kernphysik of Mainz University a harmonic double-sided microtron (HDSM) has been built to extend the experimental capabilities for nuclear and particle physics experiments to higher excitation energies. This novel microtron varian
Autor:
Reinhard Beck, C. M. Tarbert, A. Reiter, H. J. Arends, M. Unverzagt, W. J. Briscoe, Anthony W. Thomas, V. L. Kashevarov, Steffen Schumann, B. Boillat, D. P. Watts, David Manley, D. I. Glazier, D. Branford, S. N. Prakhov, A. Starostin, S. Lugert, V. S. Bekrenev, D. Mekterovic, M. Martinez-Fabregate, A. Polonski, A. Braghieri, J. C. McGeorge, U. Ludwig-Mertin, A. Jankowiak, D. Hornidge, T. Rostomyan, V. Lisin, M. Lang, M. Dehn, R. Kondratiev, P. Pedroni, S. Cherepnya, F. Zehr, G. Rosner, M. Korolija, R.O. Owens, K. Livingston, E. J. Downie, J. W. Price, D. I. Sober, I. Supek, O. Jahn, D. Krambrich, J. Ahrens, R. Gregor, K. H. Kaiser, A. Nikolaev, Jrm Annand, R. W. Novotny, B. Krusche, L. V. Fil'kov, B. M. K. Nefkens, R. F. B. Codling, I. J. D. MacGregor, M. Rost, Th. Walcher, Volker Metag, E. Heid, J. Brudvik, P. Aguar-Bartolomé, M. Kotulla
Publikováno v:
EUROPEAN PHYSICAL JOURNAL A
A new precise determination of the {\eta} meson mass is presented. It is based on a measurement of the threshold for the {\gamma}p -> p{\eta} reaction using the tagger focal-plane microscope detector at the MAMI-B facility in Mainz. The tagger micros
Autor:
K. Johann, H. Matthay, Werner Lauth, M. Zemter, F. Hagenbuck, C. von Zanthier, H. Euteneuer, N. Clawiter, Hartmut Backe, L. Struder, M. Schutrumpf, Th. Kerschner, R. Stötter, P. Holl, K. H. Kaiser, Th. Walcher, Herbert Koch, G. Kube, J. Kemmer, O. Kettig, A. Wilms, F. Görgen
Publikováno v:
IEEE Transactions on Nuclear Science. 48:843-848
A novel K-edge imaging method has been developed at the Mainz Microtron MAMI aiming at a very efficient use of the transition radiation (TR) flux generated by the external 855-MeV electron beam in a foil stack. A fan-like quasi-monochromatic hard X-r
Autor:
A. Steinhof, H. J. Schöpe, O. Kettig, Hartmut Backe, F. Görgen, Th. Doerk, Werner Lauth, N. Eftekhari, Th. Tonn, Th. Walcher, F. Hagenbuck, K. H. Kaiser, G. Kube, S. Dambach, H. Euteneuer
Publikováno v:
Scopus-Elsevier
A novel interferometer has been developed with which the complex index of refraction of thin self-supporting foils can be measured in the vacuum ultraviolet and soft x-ray region. It consists of two collinear undulators and a grating spectrometer. Ta
Autor:
D. v. Harrach, S. Köbis, K. H. Kaiser, K. Aulenbacher, J. Hoffmann, H. Trautner, H. Fischer, P. Hartmann, M. Steigerwald, Th. Dombo, H. J. Schöpe, K.-H. Steffens, H. Euteneuer, J Langbein, J. Bermuth, S. Plützer, Ch. Nachtigall, M. Petri, P. Jennewein, H. G. Andresen, Th Weis, P. Drescher, E. Reichert, M. Schemies, H. J. Kreidel
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 391:498-506
The present work describes the source of polarized electrons that is run at the 855 MeV race track microtron MAMI at the Johannes Gutenberg Universitat in Mainz. The source is based on photoelectron emission from (III–V)-semiconductors. Presently s
Autor:
H. J. Hartmann, K.-H. Brenzinger, K. H. Kaiser, H. J. Schöpe, G. Kube, O. Kettig, C. Herberg, K. Johann, S. Dambach, H. Euteneuer, F. Hagenbuck, G. Knies, B. Limburg, Th. Walcher, Werner Lauth, Hartmut Backe
Publikováno v:
Zeitschrift für Physik A Hadrons and Nuclei. 358:107-114
Parametric x-ray Radiation (PXR) in the energy range from 5 to 20 keV produced by 855 MeV electrons using a single Si crystal was studied at the Mainz Microtron MAMI. The production mechanism was investigated by measuring the angular distributions fo
Autor:
T. Hammel, E. M. Kabuß, K. H. Kaiser, E. Reichert, F. E. Maas, K. Grimm, E. Heinen-Konschak, S. Plützer, H. Euteneuer, M. Schemies, H. J. Kreidel, R. Geiges, P. Jennewein, Ch. Nachtigall, I. Altarev, H. G. Andresen, S. Köbis, M. Steigerwald, P. Drescher, H. Fischer, J. Bermuth, K.-H. Steffens, H. Hofmann, D. v. Harrach, J. Hoffmann, K. Aulenbacher, P. Hartmann, H. Trautner, E. Schilling, A. Lopes-Ginja
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 379:15-20
At the Mainz electron accelerator MAMI a facility has been set up that allows the measurement of the bunchlength, the energy spread and the averaged and phase resolved polarization of picosecond electron bunches from a source of polarized electrons f
Autor:
H. J. Kreide, M. Petri, P. Drescher, J. Langbeine, K. H. Kaiser, H. Trautner, H. G. Andresen, M. Schemies, M. Steigerwald, Yu. A. Mamaev, D. A. Vinokurov, M. S. Galaktionov, P. Jennewein, H. J. Schöpe, S. Köbis, D. v. Harrach, O. V. Kovalenkov, B. S. Yavich, S. Plützer, H. Fischerz, Ch. Nachtigall, K.-H. Steffens, E. Reicherte, A. V. Subashiev, Yuri P. Yashin, P. Hartmann, J. Bermuth, Kurt Aulenbacher, H. Euteneuer, J. Hoffmann, Th. Dombol, N. N. Faleev
Publikováno v:
Applied Physics A Materials Science & Processing. 63:203-206
Strained layer GaAs.95P.05 photo cathodes are presented, which emit electron beams spinpolarized to a degree of P = 75% typically. Quantum yields around QE = 0.4% are observed routinely. The figure of merit P2 × QE = 2.3 × 10−3 is comparable to t
Autor:
H. Trautner, M. Steigerwald, P. Hartmann, Yu. A. Mamaev, K. Aulenbacher, S. Köbis, O. V. Kovalenkov, H. G. Andresen, Th. Dombol, K.-H. Steffens, H. Fischerz, J. Langbeine, D. A. Vinokurov, D. v. Harrach, E. Reicherte, H. J. Kreide, M. Petri, Yuri P. Yashin, P. Drescher, A. V. Subashiev, B. S. Yavich, N. N. Faleev, J. Hoffmann, M. S. Galaktionov, H. J. Schöpe, M. Schemies, K. H. Kaiser, S. Plützer, P. Jennewein, J. Bermuth, H. Euteneuer, Ch. Nachtigall
Publikováno v:
Applied Physics A: Materials Science & Processing. 63:203-206
Autor:
B. Krusche, S. Hlaváč, R.O. Owens, K. H. Kaiser, Gisela Anton, I. Anthony, V. Metag, J. Peise, J. Ahrens, R. Beck, H. Ströher, M. Fuchs, A. R. Gabler, A. Schubert, M. Röbig-Landau, R.S. Simon, S.J. Hall, F. Härter, V. Tries, G.J. Miller, J. D. Kellie
Publikováno v:
Zeitschrift für Physik A Hadrons and Nuclei. 351:237-240
Near threshold photoproduction ofη-mesons from the proton has been measured at the MAMI accelerator with the TAPS spectrometer. The mass of theη-meson was deduced from the threshold energy forη-photoproduction. The result of m η =(547.12 ± 0.06