Design and actual performance of J-PARC 3 GeV rapid cycling synchrotron for high-intensity operation

Yamamoto, Kazami; Kinsho, Michikazu; Hayashi, Naoki; Saha, Pranab; Tamura, Fumihiko; Yamamoto, Masanobu; Tani, N.; Takayanagi, Tetsuya; Kamiya, J.; Shobuda, Yoshihiro; Yoshimoto, Masahiro; Harada, Hiroyuki; Takahashi, Hiroki; Watanabe, Yasuhiro; Okabe, Kota; Nomura, Masahiro; Shimada, Taihei; Nakanoya, Takamitsu; Ono, Ayato; Moriya, K.; Yamazaki, Yoichi; Suganuma, K.; Fujirai, Kosuke; Kikuzawa, N.; Meigo, Shin-ichiro; Ooi, Motoki; Hatakeyama, Shuichiro; Togashi, T.; Wada, Kenta; Hotchi, H.; Yoshii, M.; Ohmori, C.; Toyama, T.; Satou, Kenichirou; Irie, Y.; Ueno, T.; Horino, K.; Yanagibashi, Toru; Saeki, Riuji; Satô, Atsushi; Takeda, Osamu; Kawase, M.; Suzuki, Takahiro; Watanabe, Kazuhiko; Ishiyama, T.; Fukuta, Shinpei; Sawabe, Yuki; Itō, Yūichi; Kato, Yuko; Hasegawa, K.; Suzuki, Hiromitsu; Noda, F.

doi:10.1080/00223131.2022.2038301

Cited by 9 publications

(2 citation statements)

References 55 publications

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“…Fig. 39 The first suggested timeline for the installations, aimed at mitigating the operational challenges arising from the required linac upgrade The ring has similarities in terms of size and beam parameters to existing machines in operation, namely, the Proton Synchrotron Booster (PSB) at CERN [132,133], the Rapid Cycling Synchrotron (RCS) at the China Spallation Neutron Source (CSNS) [134], the SNS accumulator ring [135], and the RCS at the J-PARC which provides beam to the Material and Life Science Experimental Facility (MLF) [136]. Table 8 lists selected parameters of comparable rings as a comparison to the ESSνSB accumulator ring.…”

Section: Accumulator Ring Lattice and Opticsmentioning

confidence: 99%

The European Spallation Source neutrino super-beam conceptual design report

Alekou

Baussan

Bhattacharyya

et al. 2022

Eur. Phys. J. Spec. Top.

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A design study, named $${\text {ESS}}\nu {\text {SB}}$$ ESS ν SB for European Spallation Source neutrino Super Beam, has been carried out during the years 2018–2022 of how the 5 MW proton linear accelerator of the European Spallation Source under construction in Lund, Sweden, can be used to produce the world’s most intense long-baseline neutrino beam. The high beam intensity will allow for measuring the neutrino oscillations near the second oscillation maximum at which the CP violation signal is close to three times higher than at the first maximum, where other experiments measure. This will enable CP violation discovery in the leptonic sector for a wider range of values of the CP violating phase $$\delta _{{\mathrm{CP}}}$$ δ CP and, in particular, a higher precision measurement of $$\delta _{{\mathrm{CP}}}$$ δ CP . The present Conceptual Design Report describes the results of the design study of the required upgrade of the ESS linac, of the accumulator ring used to compress the linac pulses from 2.86 ms to 1.2 μs, and of the target station, where the 5 MW proton beam is used to produce the intense neutrino beam. It also presents the design of the near detector, which is used to monitor the neutrino beam as well as to measure neutrino cross sections, and of the large underground far detector located 360 km from ESS, where the magnitude of the oscillation appearance of $$\nu _{e }$$ ν e from $$\nu _{\mu }$$ ν μ is measured. The physics performance of the $${\text {ESS}}\nu {\text {SB}}$$ ESS ν SB research facility has been evaluated demonstrating that after 10 years of data-taking, leptonic CP violation can be detected with more than 5 standard deviation significance over 70% of the range of values that the CP violation phase angle $$\delta _{{\mathrm{CP}}}$$ δ CP can take and that $$\delta _{{\mathrm{CP}}}$$ δ CP can be measured with a standard error less than 8° irrespective of the measured value of $$\delta _{{\mathrm{CP}}}$$ δ CP . These results demonstrate the uniquely high physics performance of the proposed $${\text {ESS}}\nu {\text {SB}}$$ ESS ν SB research facility.

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Section: Accumulator Ring Lattice and Opticsmentioning

confidence: 99%

The European Spallation Source neutrino super-beam conceptual design report

Alekou

Baussan

Bhattacharyya

et al. 2022

Eur. Phys. J. Spec. Top.

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“…This experiment to search for muon-electron conversion, DeeMe, is conducted at J-PARC Materials and Life Science Experimental Facility (MLF) (Figure 1). We use a highpurity pulsed proton beam from the 3-GeV Rapid Cycling Synchrotron (RCS) [1]. The beam is a fast extracted one and the power is currently 830 kW, which is upgraded to 1 MW.…”

Section: Deeme Experimentsmentioning

confidence: 99%

DeeMe—Muon–Electron Conversion Search Experiment

Yamamoto

2023

NuFACT 2022

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Nuclide production cross sections in proton-induced reactions on Bi at GeV energies

et al. 2023

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Proton-induced nuclide production cross sections for Bi at incident energies of 0.4, 1.5, and 3.0 GeV are measured with the activation method using the proton beams accelerated from the Rapid-Cycling Synchrotron of the Japan Proton Accelerator Research Complex (J-PARC). A total of 127 cross-section data are obtained. The measured data are compared with two types of Monte Carlo-based spallation models (i.e. INCL++ coupled with ABLA07 and INCL4.6 coupled with GEM), and the evaluated nuclear data library, JENDL/HE-2007. The result showed that INCL++/ABLA07 overall agrees with the experimental data, whereas INCL4.6/GEM underestimates the production of fission fragments.

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Design and actual performance of J-PARC 3 GeV rapid cycling synchrotron for high-intensity operation

Cited by 9 publications

References 55 publications

The European Spallation Source neutrino super-beam conceptual design report

The European Spallation Source neutrino super-beam conceptual design report

DeeMe—Muon–Electron Conversion Search Experiment

Nuclide production cross sections in proton-induced reactions on Bi at GeV energies

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