A universal slow RI-beam facility at RIKEN RIBF

Journal Article · Thu Nov 02 04:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2398873· OSTI ID:20891757

Wada, M ^[1]; Ishida, Y; Nakamura, T; Lioubimov, V; Kambara, T; Kanai, Y; Kojima, T M; Nakai, Y ^[1]; Okada, K ^[2]; Takamine, A; Yamazaki, Y ^[1]; Shiba, S ^[1]; Yoshida, A; Kubo, T ^[3]; Ohtani, S ^[4]; Noda, K ^[5]; Katayama, I ^[6]; Varentsov, V ^[7]; Wollnik, H ^[8]; Schuessler, H A ^[9]

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1. Atomic Physics Lab., RIKEN, 2-1, Hirosawa, Wako, 351-0198 (Japan)
2. Department of Physics, Sophia University, 7-1 Kioicho, Chiyoda, Tokyo 102-8554 (Japan)
3. Nishina Center for Accelerator-Based Science, RIKEN, 2-1, Hirosawa, Wako, 351-0198 (Japan)
4. Institute of Laser Science, University of Electro-Communications, Chofu 182-8585 (Japan)
5. National Institute for Radiological Science, Chiba 263-8555 (Japan)
6. Institute of Particle and Nuclear Studies, High Energy Accelerator Research Association (KEK), Tsukuba 305-0801 (Japan)
7. Kholopin Radium Institute, St. Petersburg, Russia (Russian Federation)
8. II, Physikalisches Institute, Justus-Liebig-Universitaet, 6300 Giessen (Germany)
9. Department of Physics, Texas A and M University, College Station, TX (United States)

A next-generation slow radioactive nuclear ion beam facility (SLOWRI) which provides slow, high-purity and small emittance ion beams of all elements has been proposed as one of the pricipal experimental facilities at the RIKEN RI-beam factory (RIBF). High energy radioactive ion beams from the projectile fragment separator BigRIPS are thermalized in a large gas catcher cell. The thermal ions in the gas cell are guided and extracted to vacuum by a combination of DC electric fields and inhomogeneous rf fields in the cell (rf ion guide). In the R and D works at the present RIKEN facility, an overall efficiency of {approx_equal} 5% for {approx_equal} 100A MeV 8Li ion beam from the present projectile fragment separator RIPS was achieved and the dependence of the efficiency on the beam intensity was investigated. A first spectroscopy experiment at the prototype SLOWI was performed on Be isotopes.

• OSTI ID: 20891757
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 865; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BERYLLIUM ISOTOPES
ELECTRIC FIELDS
JAPANESE ORGANIZATIONS
LITHIUM 8
MEV RANGE 10-100
RADIOACTIVE ION BEAMS
SPECTROSCOPY