Charge Stripper Ring for RIKEN RI Beam Factory

Imao, H.

doi:10.1088/1748-0221/15/12/p12036

Cited by 3 publications

(7 citation statements)

References 21 publications

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“…The concept, design, and basic calculations of CSRs have already been described in detail in the previous article [32]. Here we briefly review the design of CSR1 and show recent progresses.…”

Section: Design Of Charge Stripper Ring 1 21 Design View and Transver...mentioning

confidence: 99%

“…Figure 12 shows a schematic of a charge stripping cycle in CSR1, where the average charge states after 𝑁 2 and He strippers are about 55+ and 63+, respectively; since the charge state distribution after passing the 𝑁 2 stripper is close to charge state equilibrium, these values are almost independent of the number of cycles. We note that beam transport calculations within CSRs considering emittance growth at the stripper and energy recovery in the acceleration cavity, as well as design calculations of the beam transport system among RRC-CSR1-fRC can be found in the previous article [32].…”

Section: Two-stage Gas Strippersmentioning

confidence: 99%

“…The major bottleneck for increasing the intensity of uranium beams is the low charge stripping efficiency. In this paper, we present recent progress on a charge stripper ring (CSR) [30][31][32][33], which is being…”

Section: Introductionmentioning

confidence: 99%

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Status update of the Charge Stripper Rings project

Imao

2023

J. Inst.

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The RIKEN RI (radioactive isotope) Beam Factory (RIBF) provides the world's most intense heavy ion beams exceeding 345 MeV/u and is the primary facility for in-flight RI beam generation. The RIBF has steadily improved its performance. In particular, the intensity of the uranium beam, which is critical for producing in-flight fission RI beams, has been dramatically increased by a factor of 240 compared to 2008. To further increase the intensity of the uranium beam, a new acceleration scheme using charge stripper rings (CSRs) has been proposed as a cost-effective way to increase charge stripping efficiency. In this paper, we discuss the key design issues of CSR and required upgrades of existing ring cyclotrons with the introduction of CSR and space-charge effects.

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Section: Design Of Charge Stripper Ring 1 21 Design View and Transver...mentioning

confidence: 99%

Section: Two-stage Gas Strippersmentioning

confidence: 99%

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Status update of the Charge Stripper Rings project

Imao

2023

J. Inst.

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“…This case is instructive as the tunes and energy limits can be found analytically. Many cyclotrons exist that are based on this design: the PSI Injector 2 [36], the two separated sector GANIL cyclotrons [23], and the four cyclotrons of RIBF [20], and others.…”

Section: Cyclotron Typesmentioning

confidence: 99%

Cyclotrons: Why/how are their dynamics different?

Baartman

2023

J. Inst.

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For this issue, papers on the topic of cyclotron beam physics have been solicited and chosen to highlight the main areas both of historic interest and of active research. I take the opportunity to outline the differences and similarities between cyclotron dynamics as compared to other accelerator types. As well, I try to introduce the major areas of interest, referring to papers in this issue, as appropriate.

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“…The inset photograph in Fig. 9 shows the differential pumping section (DPS), -gas-jet curtain [ 47 ], target chamber, and Q1 magnet of GARIS-III from left- to-right. The DPS and target chamber designs are the same as those in GARIS-II.…”

Section: Construction and Installation Of Garis-iiimentioning

confidence: 99%

Facility upgrade for superheavy-element research at RIKEN

et al. 2022

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The RIKEN Nishina Center (RNC) executed an accelerator upgrade project for the heavy-ion linac (called RILAC). A superconducting RIKEN linear accelerator (SRILAC) and a new superconducting electron-cyclotron-resonance ion source (SC-ECRIS) to boost the final energy and intensity were constructed, aimed at synthesizing a new superheavy element, 119, through a hot fusion reaction. The project included the construction of a gas-filled recoil ion separator (GARIS-III) suitable for detecting the residues of the hot-fusion reaction. To avoid research interruption during the SRILAC construction period (2017–2019) and gain experience in hot-fusion reaction processes, GARIS-II located in the GARIS experimental hall in LINAC building was moved to the E6 experimental hall in Nishina building. Certain exploratory measurements were performed employing the beams accelerated by RILAC2 and the RIKEN ring cyclotron (RRC), which is a part of the existing accelerator complex of the radioactive isotope beam factory (RIBF). Further, commissioning experiments with the upgraded facility (SRILAC and GARIS-III) were performed. The upgrade project and its commissioning results are chronologically described in this article.

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Charge Stripper Ring for RIKEN RI Beam Factory

Cited by 3 publications

References 21 publications

Status update of the Charge Stripper Rings project

Status update of the Charge Stripper Rings project

Cyclotrons: Why/how are their dynamics different?

Facility upgrade for superheavy-element research at RIKEN

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