Dual magnetic separator for

Abstract

The TRIµP facility, under construction at KVI, requires the production and separation of short-lived and rare isotopes. Direct reactions, fragmentation and fusionevaporation reactions in normal and inverse kinematics are foreseen to produce nuclides of interest with a variety of heavy-ion beams from the superconducting cyclotron AGOR. For this purpose, we have designed, constructed and commissioned a versatile magnetic separator that allows efficient injection into an ion catcher, i.e., gas-filled stopper/cooler or thermal ionizer, from which a low energy radioactive beam will be extracted.The separator performance was tested with the production and clean separation of 21 Na ions, where a beam purity of 99.5% could be achieved. For fusion-evaporation products, some of the features of its operation as a gas-filled recoil separator were tested.

Status of the TRIμP project

“…Details are described in [6]. Secondary beams produced to date are 22 Mg, 21 Na, 20 Na, 19 Ne, 12 N, and 12 B using (p,n) charge exchange and deuteron stripping reactions in inverse kinematics.…”

Precise Determination of the UnperturbedB8Neutrino Spectrum

“…2. A 8 B beam was produced by fragmentation of a 55 MeV=u 12 C beam on a 1:72 g=cm 2 12 C target and analyzed with the TRI P magnetic separator [18], which was tuned to ensure the maximum transmission for 8 B ions. An aluminum degrader with the appropriate thickness was placed before the detection setup to bring the beam energy down to 18.69 (27) MeV before implantation in the DSSSD.…”

Towards a precise measurement of atomic parity violation in a single Ra + ion

“…A 204 Pb beam is used for the production of 209−211 Ra. The Ra isotopes are separated from the primary beam and other reaction products in a double magnetic separator [12]. Subsequently they are stopped in a Thermal Ionizer (TI) consisting of a stack of 0.75 μm thick tungsten foils in a ≈ 2500 K hot tungsten cavity [13].…”