6533b7dcfe1ef96bd1272bc7
RESEARCH PRODUCT
Recoil-beta tagging: A novel technique for studying proton-drip-line nuclei
D. T. JossRauno JulinN. S. PattabiramanT. GrahnJ. ThomsonS. JuutinenPaul GreenleesS. EeckhaudtRobert PageA. N. SteerP. A. ButlerC. ScholeyM. NymanJan SarénI. G. DarbyR. WadsworthR. GloverP. RahkilaD. G. JenkinsRoy Crawford LemmonB. S. Nara SinghR-d HerzbergB. BlankPeter M. JonesJuha UusitaloJ. SimpsonMatti LeinoJanne PakarinenJuha Sorrisubject
PhysicsNuclear and High Energy PhysicsProton010308 nuclear & particles physicsDetector[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesCharged particleSemiconductor detectorNuclear physicsRecoilPositronExcited state27.50.þe; 29.30.Kv; 29.40.Wk0103 physical sciencesAtomic physics010306 general physicsNuclear ExperimentInstrumentationFermi Gamma-ray Space Telescopedescription
Abstract Tagging with charged particles and γ -rays at the focal plane of recoil separators has proven, over the last two decades, to be a very powerful tool for the identification of excited states in exotic nuclei produced with very low cross-sections. One of the key areas so far unexplored in terms of the tagging methodology has been performing correlations with β -particles at the focal plane of a recoil separator. A new technique entitled Recoil-Beta Tagging (RBT) has been developed, this technique exploits the unusual properties of Fermi super-allowed β emitters, which have both a short half-life ( ∼ 100 ms ) and high β + -endpoint energy. Correlating with such β -particles using a double-sided silicon strip detector and planar germanium detector as an effective Δ E – E telescope for high-energy positrons has allowed a proof-of-principle of this technique to be carried out, by cleanly identifying excited states in the proton-drip-line nucleus, 74Rb.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-09-01 |