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1.
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Negative hydrogen ion sources for particle accelerators: Sustainability issues and recent improvements in long-term operations
/ Welton, Robert (Oak Ridge) ; Bollinger, Dan (Fermilab) ; Dehnel, Morgan (Unlisted, CA) ; Draganic, Ilija (Los Alamos) ; Faircloth, Dan (Rutherford) ; Han, Baoxi (Oak Ridge) ; Lettry, Jacques (CERN) ; Stockli, Martin (Oak Ridge) ; Tarvainen, Olli (Rutherford) ; Ueno, Akira (J-PARC)
High brightness, negative hydrogen ion sources are used extensively in scientific facilities operating worldwide. Negative hydrogen beams have become the preferred means of filling circular accelerators and storage rings as well as enabling efficient extraction from cyclotrons. [...]
FERMILAB-CONF-22-386-AD.-
2022 - 13 p.
- Published in : J. Phys. : Conf. Ser. 2244 (2022) 012045
Fulltext: PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
In : 19th International Conference on Ion Sources (ICIS 2021), Vancouver, BC, Canada, 20 - 24 Sep 2021, pp.012045
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2.
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Numerical study of plasma generation process and internal antenna heat loadings in J-PARC RF negative ion source
/ Shibata, T (J-PARC) ; Nishida, K (Keio U.) ; Mochizuki, S (Keio U.) ; Mattei, S (CERN) ; Lettry, J (CERN) ; Hatayama, A (Keio U.) ; Ueno, A (J-PARC) ; Oguri, H (J-PARC) ; Ohkoshi, K (J-PARC) ; Ikegami, K (J-PARC) et al.
A numerical model of plasma transport and electromagnetic field in the J-PARC (Japan Proton Accelerator Research Complex) radio frequency ion source has been developed to understand the relation between antenna coil heat loadings and plasma production/transport processes. From the calculation, the local plasma density increase is observed in the region close to the antenna coil. [...]
2016 - 3 p.
- Published in : Rev. Sci. Instrum. 87 (2016) 02B128
In : 16th International Conference on Ion Sources, New York, NY, USA, 23 - 28 Aug 2015, pp.02B128
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3.
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Multi-wire Profile Monitor for J-PARC 3GeV RCS
/ Hiroki, S (JAEA, Ibaraki) ; Arakida, Y (KEK, Tsukuba) ; Hayashi, N (JAEA, Ibaraki) ; Kawase, M (JAEA, Ibaraki) ; Lee, S (KEK, Tsukuba) ; Noda, F (JAEA, Ibaraki) ; Saha, P K (JAEA, Ibaraki) ; Sako, Hiroyuki (JAEA, Ibaraki) ; Takahashi, H (JAEA, Ibaraki) ; Toyama, T (KEK, Tsukuba) et al.
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.TUPC036
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4.
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Beam Profile Monitor of the J-PARC 3GeV Rapid Cycling Synchrotron
/ Satou, K (JAEA, Ibaraki) ; Harada, H (ADSM, Hiroshima) ; Hayashi, N (JAEA, Ibaraki) ; Lee, S (JAEA, Ibaraki) ; Saeki, R (JAEA, Ibaraki) ; Tejima, M (KEK, Tsukuba) ; Toyama, T (JAEA, Ibaraki) ; Ueno, A (JAEA, Ibaraki) ; Yamamoto, K (JAEA, Ibaraki)
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.TUPC093
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5.
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Intense Negative Ion Sources
/ Mori, Y ; Takagi, A ; Ikegami, K ; Ueno, A ; Fukumoto, S (KEK, Tsukuba)
1990
- Published in : Part. Accel.: 32 (1990) , pp. 9-14
Published version: PDF;
In : 14th International Conference on High-Energy Accelerators, pt.1-5, Tsukuba, Japan, 22 - 26 Aug 1989, pp.1451
11th Meeting of the International Collaboration on Advanced Neutron Sources, v.1-2, KEK, Tsukuba, Japan, 22 - 26 Oct 1990, pp.247-250 (vol.1)
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6.
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Installation of Beam Monitor Sensors in the LINAC Section of J-PARC
/ Sato, Susumu (JAEA/LINAC, Ibaraki-ken) ; Akikawa, Hisashi (JAEA, Ibaraki-ken) ; Ao, Hiroyuki (JAEA/LINAC, Ibaraki-ken) ; Igarashi, Zenei (KEK, Ibaraki) ; Lee, Seishu (KEK, Ibaraki) ; Tomisawa, Tetsuo (JAEA/LINAC, Ibaraki-ken) ; Ueno, Akira (JAEA/LINAC, Ibaraki-ken)
2006 - 3 p.
External link: Published version from JACoW
In : 10th European Particle Accelerator Conference, Edinburgh, UK, 26 - 30 Jun 2006, pp.1151
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7.
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RF Tuning and Fabrication Status of the First Module for J-PARC ACS
/ Ao, Hiroyuki ; Morishita, Takatoshi ; Ueno, Akira ; Hasegawa, Kazuo ; Yamazaki, Yoshishige ; Ikegami, Masanori ; Paramonov, Valentin
Los Angeles, CA : Calif. Univ. Los Angeles, 2005 - 3 p.
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2684
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8.
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Transverse Tuning Scheme for J-PARC Linac
/ Ikegami, Masanori ; Akikawa, Hisashi ; Ao, Hiroyuki ; Hasegawa, Kazuo ; Igarashi, Zenei ; Kondo, Yasuhiro ; Lee, Seishu ; Ohkawa, Tomohiro ; Sato, Susumu ; Tomisawa, Tetsuo et al.
In a high-intensity linac, precise transverse matching is essential for beam halo mitigation. In this paper, we present the supposed transverse tuning scheme for J-PARC linac and the planned beam diagnostic layout for it. [...]
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2750
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9.
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Developments of the Calibration Tools for Beam Position Monitor at J-PARC Linac
/ Sato, Susumu ; Akikawa, Hisashi ; Igarashi, Zenei ; Ikegami, Masanori ; Kamikubota, Norihiko ; Lee, Seishu ; Tomisawa, Tetsuo ; Toyama, Takeshi ; Ueno, Akira
In the J-PARC LINAC, there are mainly two requirements for the beam based calibration of beam position monitors (BPMs). One is that BPMs need to be calibrated with the accuracy of about a hundred micro-meters to minimize beam loss for the world highest class of proton intensity. [...]
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2777
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10.
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An Alignment of J-PARC Linac
/ Morishita, Takatoshi ; Ao, Hiroyuki ; Hasegawa, Kazuo ; Ikegami, Masanori ; Ito, Takashi ; Kubota, Chikashi ; Naito, Fujio ; Takasaki, Eiichi ; Tanaka, Hirokazu ; Ueno, Akira et al.
J-PARC linear accelerator components are now being installed in the accelerator tunnel, whose total length is more than 400 m including the beam transport line to RCS (Rapid Cycling Synchrotron). A precise alignment of accelerator components is essential for a high quality beam acceleration. [...]
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2851
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