Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Shipman, Nicholas"'
We present a novel design of a FerroElectric Fast Reactive Tuner (FE-FRT) capable of modulating Mega VAR reactive power on a sub-microsecond time scale. We show detailed analytical estimates of the performance of this device and benchmark these estim
Externí odkaz:
http://arxiv.org/abs/2109.06806
The compact linear collider (CLIC) is a leading candidate for the next generation high energy linear collider. As any breakdown would result in a partial or full loss of luminosity for the pulse in which it occurs, obtaining a low breakdown rate in C
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.644481
Akademický článek
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The new High Repetition Rate (HRR) CERN DC Spark System has been used to investigate the current and voltage time structure of a breakdown. Simulations indicate that vacuum breakdowns develop on ns timescales or even less. An experimental benchmark f
Externí odkaz:
http://arxiv.org/abs/1206.0573
Autor:
Shipman, Nicholas, Ben-Zvi, Ilan, Burt, Graeme, Castilla, Alejandro, Coly, Marcel, Gerigk, Frank, Jing, Chunguang, Kanareykin, Alexei, Macpherson, Alick, Stapley, Niall, Timko, Helga
A Ferro-Electric fast Reactive Tuner (FE-FRT) is a novel type of RF cavity tuner containing a low loss ferroelectric material. FE-FRTs have no moving parts and allow cavity frequencies to be changed extremely quickly (on the timescale of 100s of ns o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ada97865e04fd2bceefd27c7b85b26f
http://cds.cern.ch/record/2807269
http://cds.cern.ch/record/2807269
Autor:
Shipman, Nicholas, Bastard, Jeremy, Ben-Zvi, Ilan, Burt, Graeme, Castilla, Alejandro, Coly, Marcel, Gerigk, Frank, Jing, Chunguang, Kanareykin, Alexei, Macpherson, Alick, Nenasheva, Elisaveta, Stapley, Niall
A prototype Fast Reactive Tuner (FRT) for superconducting cavities has been developed, which allows the frequency to be controlled by application of a potential difference across a newly developed ultra-low loss ferro-electric material residing withi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c4703b44bb98e201f9d73b98ab4600d
http://cds.cern.ch/record/2799787
http://cds.cern.ch/record/2799787
Autor:
Stapley, Niall, Bastard, Jeremy, Ben-Zvi, Ilan, Castilla, Alejandro, Coly, Marcel, Hernandez-Chahin, K., Ivanov, Anton, Macpherson, Alick, Shipman, Nicholas, Turaj, Katarzyna, Wartak, Marcin, Zwozniak, Agnieszka
Recent deployment of a digital LLRF system within the cavity testing framework of CERN’s vertical test cryostats has permitted a full revamp of cavity performance validation. With both full continuous and pulse mode operation, steady state a transi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0d761858ed4989cd8b539f1ef01280c
http://cds.cern.ch/record/2712610
http://cds.cern.ch/record/2712610
Autor:
Shipman, Nicholas, Bastard, Jeremy, Ben-Zvi, Ilan, Burt, Graeme, Castilla, Alejandro, Coly, Marcel, Gerigk, Frank, Jing, Chunguang, Kanareykin, Alexei, Kazakov, Sergey, Macpherson, Alick, Nenasheva, Elisaveta, Stapley, Niall
A prototype FerroElectric Fast Reactive Tuner (FE-FRT) for superconducting cavities has been developed, which allows the frequency to be controlled by application of a potential difference across a ferroelectric residing within the tuner. This techni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aefa47bb7d921865fb319644b6bcea34
http://cds.cern.ch/record/2712608
http://cds.cern.ch/record/2712608
Autor:
Mitchell, James, Burt, Graeme, Calaga, Rama, Shipman, Nicholas, Verdú-Andrés, Silvia, Wu, Qiong, Xiao, Binping
As part of the High Luminosity Large Hadron Collider (HL-LHC) project, 16 crab cavities are to be installed in the LHC in 2025. The two crab cavity designs are the Double Quarter Wave (DQW) and Radio Frequency Dipole (RFD). Preliminary beam tests in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b79d4ff273aac88a6c76ff0a559ab9ae
Autor:
Shipman, Nicholas, Ben-Zvi, Ilan, Burt, Graeme, Castilla, Alejandro, Hernández-Chahín, Karim, Macpherson, Alick, Mitchell, James
A four wire measurement was used to measure the bulk RRR on two DQW Crab Cavities. The measurement procedure is explained and the values obtained for each cavity are compared together with the values obtained from Niobium samples of the same stock fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9053c5b8da4693052cf7dbd1beddadce
http://cds.cern.ch/record/2673327
http://cds.cern.ch/record/2673327