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Catford, W. N.; Lemmon, R. C.; Labiche, M.; Timis, C. N.; Orr, N. A.; Caballero, L.; Chapman, R.; Chartier, M.; Rejmund, M.; Savajols, H.
European Physical Journal A, 09/2005, Letnik: 25, Številka: S1Journal Article, Conference Proceeding
Results from a study in inverse kinematics of the $^{24}$Ne(d, pγ)$^{25}$Ne reaction, using a radioactive beam of $^{24}$Ne from the SPIRAL facility at GANIL, are reported. First, a brief overview is given of several methods using radioactive beams to study the classic single-nucleon transfer reactions such as (d, p) or (d, t)/(d, $^{3}$He), where the experimental design is strongly influenced by the extreme inverse kinematics. A promising approach to deliver good energy resolution is to combine a high geometrical efficiency for kinematically complete charged particle detection with a high efficiency array for gamma-ray detection. One of the first dedicated set-ups for this type of experiment is the TIARA silicon strip array combined with the EXOGAM segmented germanium array. Together they comprise a highly compact, position-sensitive particle array with 90% of 4π coverage, mounted inside a cubic arrangement of four segmented gamma-ray detectors in very close geometry with 67% of 4π active coverage. Using this setup, the structure of $^{25}$Ne has been studied via the (d, p) reaction. A pure ISOL beam of 10$^{5}$ s$^{-1}$ of $^{24}$Ne at 10 MeV/A was provided by SPIRAL and bombarded a CD$_{2}$ target of 1 mg/cm$^{2}$. The $^{25}$Ne was detected at the focal plane of the VAMOS spectrometer where the direct beam was separated and intercepted. Reaction protons were detected in coincidence with little background. Four resolved peaks were recorded between E$_{x}$ = 0 and 4 MeV. The data confirm and extend the results from a multinucleon transfer study using the ($^{13}$C,$^{14}$O) reaction. Further information has been obtained using the energies of coincident gamma-rays. The reactions $^{24}$Ne(d, dγ)$^{24}$Ne, $^{24}$Ne(d, t)$^{23}$Ne and $^{24}$Ne(d, $^{3}$He)$^{23}$F were recorded simultaneously and analysis of these is also underway.
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