BEARS: radioactive ion beams at Berkeley

Structure ofN12usingC11+Perajärvi1, Fu2, Rogachev3 et al. 2006Phys. Rev. CSelf Cite

“…The present work extends our knowledge of the level structure of 12 N by covering the excitation energy interval from 2.2 to 11.0 MeV. States within this energy interval were populated using 11 C+p resonance scattering.…”

“…In addition to the nuclear physics interest, studies involving 12 N around its 11 C+p threshold at 0.601 MeV are often also driven by nuclear astrophysics interests [4][5][6][7][8]. Namely, to be able to accurately determine the astrophysical rate of the 11 C(p, γ ) 12 N reaction, detailed knowledge of the low-lying level structure of 12 N is also required.…”

“…Favorable states in 12 N close to this threshold could strongly enhance the corresponding reaction rate. The 8 B(α, p) 11 C reaction has been experimentally studied in Ref. [10].…”

“…The first part of the experimental results to be reported were obtained using the Berkeley Experiments with Accelerated Radioactive Species (BEARS) coupled cyclotron system [11], which provided 11 C beams of 2 × 10 7 ions/s on target. This beam was used with a solid target.…”

Production of [15O]water at low-energy proton cyclotrons

“…The radiowater system was developed as part of a nuclear physics research project known as BEARS (Powell et al, 2000;Powell et al, 2003). In BEARS, short-lived radioisotopes produced by the LBNL Life Science Division medical cyclotron are ionized and accelerated by the Nuclear Science Division 88-Inch research cyclotron, in order to perform nuclear physics experiments (Guo et al, 2005).…”