Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Th. Krist"'
Autor:
Th. Krist, A. Tennant
Publikováno v:
Neutron News. 25:4-7
In this article we present the results of the major upgrade program at Helmholtz Zentrum Berlin HZB which was successfully conducted from October 2010 to March 2012.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60938a14b2dbfe4b501b03242629bbed
https://doi.org/10.1080/10448632.2014.902673
https://doi.org/10.1080/10448632.2014.902673
Autor:
Suzuki Junichi, Kenichi Oikawa, Th. Krist, Kenji Nakajima, Mitsutaka Nakamura, Ryoichi Kajimoto, Wataru Kambara, Masahide Harada, Fujio Maekawa, Takenao Shinohara, M. Arai, Kazuhiko Ikeuchi, Hiroki Tanaka
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 737:142-147
The efficiency of inelastic neutron scattering measurements using a chopper spectrometer can be markedly improved by utilizing multiple incident energies (Multi- E i method). However, in conventional chopper systems, optimization of the experimental
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eab4d62f4ac0a347aa192bb67aa1df0c
https://doi.org/10.1016/j.nima.2013.11.019
https://doi.org/10.1016/j.nima.2013.11.019
Autor:
Th. Krist, Zs Sánta, Margarita Russina, R.R. Gainov, Ferenc Mezei, János Füzi, Gerrit Günther
Publikováno v:
Journal of Physics: Conference Series. 1316:012008
We present the basic design of the incoming neutron beam polarizer system recently installed at the TOF spectrometer NEAT at HZB and the first experimental test results. The recent upgrade of the instrument resulted in beam flux on the sample, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d499320a3ee7fd9bc3c5ad91323307f
https://doi.org/10.1088/1742-6596/1316/1/012008
https://doi.org/10.1088/1742-6596/1316/1/012008
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 729:334-337
Neutron energy analysing allows to measure at di fferent wavelengths at the same time thus avoiding losses due to monochromatization. We built and tested a refractive energy analysing device made from small prisms, where losses only occur due to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8b9b10ea7ee94bd47b8b7d05bf73f8e
https://doi.org/10.1016/j.nima.2013.07.030
https://doi.org/10.1016/j.nima.2013.07.030
Autor:
E. V. Moskvin, Bela Farago, P. Falus, P.M. Bentley, S. V. Grigoriev, Eddy Lelièvre-Berna, Catherine Pappas, Th. Krist
Publikováno v:
Physica B: Condensed Matter. 404:2578-2581
With the new brilliant neutron sources and the developments of novel optical elements, neutron spin echo (NSE) spectroscopy evolves to tackle new problems and scientific fields. The new developments pave the way to complex experimental set-ups such a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a99fd0f2cb2313c7dcf72f2f5c243382
https://doi.org/10.1016/j.physb.2009.06.026
https://doi.org/10.1016/j.physb.2009.06.026
Autor:
Masatoshi Arai, Ryoichi Kajimoto, Th. Krist, Tetsuya Yokoo, Kenji Nakajima, Mitsutaka Nakamura
Publikováno v:
Journal of Neutron Research. 16:87-92
4SEASONS is designed to utilize the multiple incident energies (MIE) selected by a special Fermi chopper and enhance the measurement efficiency. Chopper opening time determined by a conventional Fermi chopper is inevitably constant, and thus we canno
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::059e6df7994fa6542c4743c0aa6d6093
https://doi.org/10.1080/10238160902819510
https://doi.org/10.1080/10238160902819510
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 586:51-54
Non-magnetic neutron guides are needed where polarized neutrons are to be transmitted. Mirrotron Ltd. is able to produce guides of standard length and width coated with non-magnetic Ni(Mo)/Ti supermirrors. Hot-pressed and vacuum-melted Ni(Mo) targets
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab1f3aa9d3562221db436c3edd2e5089
https://doi.org/10.1016/j.nima.2007.11.034
https://doi.org/10.1016/j.nima.2007.11.034
Publikováno v:
Physica B: Condensed Matter. 356:197-200
A system of a polarizing solid state bender and a collimator was built and tested. The bender consists of a stack of thin silicon wafers coated with polarizing FeCo–Si supermirrors. The stack is deflected in the middle by one wafer thickness. Inser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d7ebe9da668dd9746905a812224d463
https://doi.org/10.1016/j.physb.2004.10.076
https://doi.org/10.1016/j.physb.2004.10.076
Autor:
Th. Krist
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 529:50-53
Neutron optical elements are needed to prepare neutron beams with the phase space volume required for an experiment. In the last years solid state neutron optical devices have been developed in Berlin, especially polarizers and collimators where the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a2f502b3e3be8cdc6189958ceea0600
https://doi.org/10.1016/j.nima.2004.04.175
https://doi.org/10.1016/j.nima.2004.04.175
Autor:
Catherine Pappas, Klaus Lieutenant, Ferenc Mezei, Michael Ohl, Geza Zsigmond, Th. Krist, Michael Monkenbusch, Dieter Richter
Publikováno v:
Physica B: Condensed Matter. 350:147-150
In the near future, the SNS will be the most powerful spallation neutron sources worldwide. The neutron instruments at these sources are being planned and many of them are currently under construction. To cover the domain of ultra-high-resolution spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e94265a9f1fe585ab522978393f3ba68
https://doi.org/10.1016/j.physb.2004.04.014
https://doi.org/10.1016/j.physb.2004.04.014