X-ray spectroscopy—a new method to investigate field emission in superconducting accelerating cavities

Autor: Achim Richter, M. Gopych, Andreas Zilges, J. Hasper, W. Bayer, Ralf Eichhorn, Hans-Dieter Gräf

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 575:321-327

We report on a study of field emission accompanied by emission of visible light and by emission of characteristic X-rays in a 5 and a 20 cell superconducting niobium 3 GHz accelerating cavity of the S-DALINAC injector. The nearly absorption free meas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0fd37d340c165a13737427201e51e27b
https://doi.org/10.1016/j.nima.2007.02.103

Analysis of the surface resistance of the superconducting accelerating cavities of the S-DALINAC

Autor: Achim Richter, Thomas Weiland, Ulrich Laier, Hans-Dieter Gräf, Wolfgang Franz Otto Müller, S. Watzlawik, M. Platz, M. Gopych, M. Brunken

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 564:94-99

The quality factors of the 20 cell, 3 GHz niobium cavities of the S-DALINAC are smaller by almost a factor of three compared to their design value. Combined with the limited cryogenic power of the helium refrigerator in use, this restricts the maximu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e58e634f25ec6eb47da2e666c02e46d9
https://doi.org/10.1016/j.nima.2006.04.053

Thinking Machines versus Thinking Organisms

Autor: Petro M. Gopych

Publikováno v: Engineering Applications of Neural Networks ISBN: 9783642410123
EANN (1)

The recent hypothesis of concurrent infinity and a phenomenology formalization based on it allow us to mathematically define meaning, subjectivity and super-Turing machines that implement them. Using these results, in this paper, at mathematical leve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48a9c5067661564730a9f794ec80ce23
https://doi.org/10.1007/978-3-642-41013-0_8

BSDT Multi-valued Coding in Discrete Spaces

Autor: Petro M. Gopych

Publikováno v: Proceedings of the International Workshop on Computational Intelligence in Security for Information Systems CISIS’08 ISBN: 9783540881803
CISIS

Recent binary signal detection theory (BSDT) employs a ’replacing’ binary noise (RBN). In this paper it has been demonstrated that RBN generates some related N-dimensional discrete vector spaces, transforming to each other under different network

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0ddc99f1c43cd9db0106d355986952d4
https://doi.org/10.1007/978-3-540-88181-0_33

Investigation of dark current in a S-Dalinac superconducting cavity

Autor: Thomas Weiland, Ulrich Laier, H.-D. Grg, S. Wazlawik, Achim Richter, A. Stascheck, M. Gopych, M. Platz, Stefan Setzer

Publikováno v: Proceedings of the 2003 Particle Accelerator Conference.

During the operation of the S-DALINAC, light emission associated with field emission on the surface from a 20 cell 3 GHz superconducting niobium rf cavity has been observed. The optical spectrum of the light spots has been measured by a photomultipli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3db4702f0c1cbe1db6165b485f4081ff
https://doi.org/10.1109/pac.2003.1289984