Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Jens Knobloch"'
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 12, p 123101 (2020)
In order to minimize the surface resistance in superconducting cavities, a deeper understanding of residual resistance due to trapped magnetic flux is necessary. For that purpose, a combined temperature and magnetic field mapping system is employed t
Externí odkaz:
https://doaj.org/article/1557feb3c10a4d59bf508cd72813d7a7
Publikováno v:
The Review of scientific instruments. 92(6)
Test cavities to characterize superconductor samples are of great interest for the development of materials suitable for superconducting radio frequency (SRF) accelerator systems. They can be used to investigate fundamental SRF loss mechanisms and to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c5f63fb9300f2079ea478f71bfa4cf4
https://pubmed.ncbi.nlm.nih.gov/34243532
https://pubmed.ncbi.nlm.nih.gov/34243532
Autor:
Marc Wenskat, Lea Steder, Felix Kramer, Arti Dangwal Pandey, Jens Knobloch, Oliver Kugeler, Jörn Schaffran, Satish Kulkarni, Julia Köszegi, Nicholas Walker, Andreas Stierle, Thomas F. Keller, Christopher Bate, Arno Jeromin, Sven Sievers, Guilherme Dalla Lana Semione, Detlef Reschke
Publikováno v:
Superconductor science and technology 33(11), 115017 (2020). doi:10.1088/1361-6668/abb58c
A first series of nitrogen infusion runs of 1.3 GHz single-cell cavities at DESY resulted in an unexpected and severe deterioration observed during the vertical cold test. To investigate the origin of the deterioration, one of the cavities underwent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a138913e2f9cc66f15320d22474a378
https://depositonce.tu-berlin.de/handle/11303/16378
https://depositonce.tu-berlin.de/handle/11303/16378
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 12, p 123101 (2020)
In order to minimize the surface resistance in superconducting cavities, a deeper understanding of residual resistance due to trapped magnetic flux is necessary. For that purpose, a combined temperature and magnetic field mapping system is employed t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f0b86a3809dcbfa44fc3df4c4f6a5e9
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=102834
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=102834
Autor:
Jens Knobloch, Daniel Hall, Robert Laxdal, T. Buck, Oliver Kugeler, Sam Posen, P. Kolb, Matthias Liepe, Thomas Prokscha, Tobias Junginger, Zaher Salman, Andreas Suter, Sebastian Keckert
Publikováno v:
Superconductor Science and Technology
Nb3Sn is currently the most promising material other than niobium for future superconducting radiofrequency cavities. Critical fields above 120 mT in pulsed operation and about 80 mT in CW have been achieved in cavity tests. This is large compared to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11e4aaed3763943218054658deec96fa
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=99384
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=99384
Publikováno v:
Review of Scientific Instruments. 89:084706
Superconducting radio-frequency (SRF) cavities are one of the most important elements in modern particle accelerators as they are used for beam acceleration, bunch manipulation, bunch focusing and defocusing, etc. Nevertheless, the availability of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f314f25a6bab419afe92106f8e6a265
https://doi.org/10.1063/1.5041079
https://doi.org/10.1063/1.5041079
Publikováno v:
Review of Scientific Instruments. 89:054706
A scalable mapping system for superconducting RF cavities is presented. Currently, it combines local temperature measurement with 3D magnetic field mapping along the outer surface of the resonator. This allows for the observation of dynamic effects t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd642ba31d7f039e7ff168bf9dadc5b0
https://doi.org/10.1063/1.5030509
https://doi.org/10.1063/1.5030509
Autor:
Jens Knobloch, Bettina Kuske, T. Leitner, M. Abo-Bakr, A. Meseck, Kathrin Goldammer, Thorsten Kamps
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 593:6-10
BESSY proposes to build STARS, an FEL to demonstrate cascaded High Gain Harmonic Generation (HGHG). In two HGHG stages, a laser source of 700–900 nm is converted down to a wavelength of 40–70 nm. The STARS facility consists of a normal-conducting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa3e2e62a1ef75b537430c6b7c58b7d6
https://doi.org/10.1016/j.nima.2008.04.052
https://doi.org/10.1016/j.nima.2008.04.052
Autor:
Jens Knobloch, Markus Sauerborn
Publikováno v:
Synchrotron Radiation News. 20:16-19
Femtosecond pulses from linac-based free-electron lasers are unique tools for future time-resolved experiments. In March 2004, BESSY published the Technical Design Report (TDR) for a free-electron-laser user facility that covers the VUV to soft X-ray
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aad6d2c67e186ecd306afd1200bcae7f
https://doi.org/10.1080/08940880701744741
https://doi.org/10.1080/08940880701744741
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 4, p 042001 (2015)
For many new accelerator applications, superconducting radio frequency systems are the enabling technology. In particular for CW applications, much effort is being expended to minimize the power dissipation surface resistance of niobium cavities. Sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30c4a353f0c2f03d1fca4ff7e4c95f26
https://doi.org/10.1103/physrevstab.18.042001
https://doi.org/10.1103/physrevstab.18.042001