Miniball experiment

Isotope Separator On Line Device
(ISOLDE)
List of ISOLDE experimental setups
COLLAPS, CRIS, EC-SLI, IDS, ISS, ISOLTRAP, LUCRECIA, Miniball, MIRACLS, SEC, VITO, WISArD
Other facilities
MEDICISMedical Isotopes Collected from ISOLDE
508Solid State Physics Laboratory
Miniball experimental setup at the ISOLDE facility (CERN)

The Miniball experiment is a gamma-ray spectroscopy setup regularly located in the ISOLDE facility at CERN, along with other locations including GSI, Cologne, PSI and RIKEN (HiCARI).[1][2][3][4] Miniball is a high-resolution germanium detector array, specifically designed to work with low-intensity radioactive ion beams post-accelerated by HIE-ISOLDE (High Intensity and Energy-ISOLDE), to analyse gamma radiation emitted by short-lived nuclei. Due to six-fold detector segmentation, Miniball offers a superior Doppler-correction capability with respect to conventional gamma-ray spectrometers using unsegmented detectors. The array has been used for successful Coulomb-excitation and transfer-reaction experiments with exotic beams. Results from Miniball experiments have been used to determine and probe nuclear structure.[5]

Miniball has been operational at the REX-ISOLDE (Radioactive ion beam EXperiment-ISOLDE) post accelerator at CERN since 2001.[6] In 2015, it became part of the HIE-ISOLDE project, connected via the XT01 beamline.[7] It was the first fully operational germanium gamma-ray spectrometer capable of determining spatial coordinates of the gamma-ray interaction points within the detector volume using pulse shape analysis.[8]

  1. ^ Reiter, P.; Eberth, J.; Faust, H.; Franchoo, S.; Gerl, J.; Gund, C.; Habs, D.; Huyse, M.; Jungclaus, A.; Lieb, K. P.; Scheit, H.; Schwalm, D.; Thomas, H. G.; van Duppen, P.; Weisshaar, D. (2002-04-22). "The MINIBALL array". Nuclear Physics A. 5th International Conference on Radioactive Nuclear Beams. 701 (1): 209–212. Bibcode:2002NuPhA.701..209R. doi:10.1016/S0375-9474(01)01576-7. ISSN 0375-9474.
  2. ^ "Miniball documentation page". www.ikp.uni-koeln.de. Retrieved 2023-08-11.
  3. ^ "muX | LTP | Paul Scherrer Institut (PSI)". www.psi.ch. Retrieved 2023-08-16.
  4. ^ Wimmer, K; Doornenbal, P; Aoi, N; Baba, H; Browne, F; Campbell, C; Crawford, H; De Witte, H; Fransen, C; Hess, H; Iwazaki, S; Kim, J; Kohda, A; Koiwai, T; et al. (2021). "HiCARI: High-resolution Cluster Array at RIBF" (PDF). RIKEN Accelerator Progress Report. 54.
  5. ^ Warr, N.; Van de Walle, J.; Albers, M.; Ames, F.; Bastin, B.; Bauer, C.; Bildstein, V.; Blazhev, A.; Bönig, S.; Bree, N.; Bruyneel, B.; Butler, P. A.; Cederkäll, J.; Clément, E.; Cocolios, T. E. (March 2013). "The Miniball spectrometer". The European Physical Journal A. 49 (3): 40. Bibcode:2013EPJA...49...40W. doi:10.1140/epja/i2013-13040-9. ISSN 1434-6001.
  6. ^ Reiter, P.; Warr, N. (2020-07-01). "Nuclear structure studies with re-accelerated beams at REX-and HIE-ISOLDE". Progress in Particle and Nuclear Physics. 113: 103767. Bibcode:2020PrPNP.11303767R. doi:10.1016/j.ppnp.2020.103767. ISSN 0146-6410. S2CID 213422435.
  7. ^ Borge, M. J. G.; Riisager, K. (2016-11-17). "HIE-ISOLDE, the project and the physics opportunities". The European Physical Journal A. 52 (11): 334. Bibcode:2016EPJA...52..334B. doi:10.1140/epja/i2016-16334-4. ISSN 1434-601X. S2CID 254112292.
  8. ^ Schwalm, D. (March 2005), "First Experiments with Rex-Isolde and Miniball", Key Topics in Nuclear Structure, World Scientific, pp. 21–34, Bibcode:2005ktns.conf...21S, doi:10.1142/9789812702265_0003, ISBN 978-981-256-093-3, retrieved 2023-08-02