Abstract
The BEam COoler and LAser spectroscopy (BECOLA) facility at National Superconducting Cyclotron Laboratory at Michigan State University has been commissioned online to determine charge radii and electromagnetic moments of radioactive isotopes. A radioactive 37K beam was used for the commissioning tests and a 1.29 μs beam bunch-width from the buncher and a bunch repetition rate of 2.5 Hz led to a background suppression factor of 3.1 × 105 in resonant photon detection measurements. The hyperfine structure of 37K and its isotope shift relative to the stable 39K were determined. The obtained hyperfine coupling constants A(2 S 1/2) = 120.3 ± 1.4 MHz, A(2 P 1/2) = 15.2 ± 1.1 MHz, and A(2 P 3/2) = 1.4 ± 8 MHz, and the isotope shift δ ν 39,37 = −264 ± 3 MHz are consistent with the previously determined values, where available.
Similar content being viewed by others
References
Blaum, K., Dilling, J., Nörtershäuser, W.: Phys. Scr. T152, 014017 (2013)
Minamisono, K., Mantica, P.F., Klose, A., Vinnikova, S., Schneider, A., Johnson, B., Barquest, B.R.: Nucl. Instrum. Methods Phys. Res. A 709, 85 (2013)
Morrissey, D.J., Sherrill, B.M., Steiner, M., Stolz, A., Wiedenhoever, I.: Nucl. Instrum. Methods Phys. Res. B 204, 90 (2003)
Weissman, L., Morrissey, D.J., Bollen, G., Davies, D.A., Kwan, E., Lofy, P.A., Schury, P., Schwarz, S., Sumithrarachchi, C., Sun, T., Ringle, R.: Nucl. Instrum. Methods Phys. Res. A 540, 245 (2005)
Nieminen, A., Campbell, P., Billowes, J., Forest, D.H., Griffith, J.A.R., Huikari, J., Jokinen, A., Moore, I.D., Moore, R., Tungate, G., Äystö, J.: Phys. Rev. Lett. 88, 094801 (2002)
Barquest, R.: Ph.D. thesis, Michigan State University (2014)
Klose, A., Minamisono, K., Mantica, P.F.: Phys. Rev. A 88, 042701 (2013)
See http://www.brocktoneo.com/ for information on the laser power controller
Klose, A., Minamisono, K., Geppert, C., Frömmgen, N., Hammen, M., Krämer, J., Krieger, A., Levy, C.D.P., Mantica, P.F., Nörtershäuser, W., Vinnikova, S.: Nucl. Instrum. Methods Phys. Res. A 678, 114 (2012)
Rossi, D.M., Minamisono, K., Barquest, B.R., Bollen, G., Cooper, K., Davis, M., Hammerton, K., Hughes, M., Mantica, P.F., Morrissey, D.J., Ringle, R., Rodriguez, J.A., Ryder, C.A., Schwarz, S., Strum, R., Sumithrarachchi, C., Tarazona, D., Zhao, S.: Rev. Sci. Instrum. 85, 093503 (2014)
Von Platen, C., Bonn, J., Köpf, U., Neugart, R., Otten, E.-W.: Z. Phys. 244, 44 (1971)
Behr, J.A., Gorelov, A., Swanson, T., Häusser, O., Jackson, K.P., Trinczek, M., Giesen, U., D’Auria, J.M., Hardy, R., Wilson, T., Choboter, P., Leblond, F., Buchmann, L., Dombsky, M., Levy, C.D.P., Roy, G., Brown, B.A., Dilling, J.: Phys. Rev. Lett. 79, 375 (1997)
Arimondo, E., Inguscio, M., Violino, P.: Rev. Mod. Phys. 49, 31 (1977)
Angeli, I., Marinova, K.P.: At. Data Nucl. Data Tables 99, 69 (2013)
Wohlfahrt, H.D., Shera, E.B., Hoehn, M.V., Yamazaki, Y., Steffen, R.M.: Phys. Rev. C 23, 523 (1981)
Touchard, F., Guimbal, P., Büttgenbach, S., Klapisch, R., De Saint Simon, M., Thibault, C., Duong, H.T., Liberman, S., Pinard, J., Vialle, J.L., Juncar, P., Jacquinot, P.: Phys. Lett. B 108, 169 (1982)
Author information
Authors and Affiliations
Corresponding author
Additional information
Proceedings of the 5th Joint International Conference on Hyperfine Interactions and International Symposium on Nuclear Quadrupole Interactions (HFI/NQI 2014), Canberra, Australia, 21–26 September 2014
Rights and permissions
About this article
Cite this article
Minamisono, K., Barquest, B.R., Bollen, G. et al. Commissioning of the collinear laser spectroscopy facility BECOLA at NSCL/MSU. Hyperfine Interact 230, 57–63 (2015). https://doi.org/10.1007/s10751-014-1089-5
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10751-014-1089-5