The high resolution array (HiRA) for rare isotope beam experiments

Proton-decaying states in light nuclei and the first observation of Na17

“…Reactions on 9 Be target nuclei produced short-lived states, which decayed within the target. Charged particles from those decays were detected in the High Resolution Array (HiRA) [4]. In these experiments the HiRA array was comprised of 14 Si-CsI(Tl) telescopes, centered around the beam in vertical towers in a 2-3-4-3-2 arrangement.…”

Ground-state properties ofH5from theHe6(d,Wuosmaa1, Bedoor2, Brown3 et al. 2017Phys. Rev. C13451View full textAdd to dashboardCite

“…The thickness of the (CD 2 ) n target was determined using alpha-transmission measurements as well as by direct weighing of the (CD 2 ) n material, and is reliable to 10%. The reaction products were detected and identified using the High Resolution Array (HiRA) [41]. HiRA is an array of charged-particle-detector telescopes, with particle identification provided by segmented silicon detectors and CsI(Tl) scintillator crystals.…”

Correlated two-proton decay fromC10

“…Aside from the fact that the parent excitation is not well determined, the proton-proton relative energy spectrum does not peak at small energies as expected for 1 S decay. The case for significant 1 S decay from a state at E * = 6.15 MeV in 18 Ne (a case orginally studied by del Campo et al [12]) has been very recently presented by Raciti et al [13]. While these data are also suggestive of 1 S 2p emission, the statistical significance is marginal and, as the parent state is not well resolved, the background makes an uncertain contribution to the observed correlations.…”

“…The telescopes, part of the HiRA array [18], consisted of a 65-µm-thick, single-sided Si-strip E detector followed by a 1.5-mm-thick, double-sided Si strip E detector. All Si detectors were 6.4 × 6.4 cm in area with the position-sensitive faces divided into 32 strips.…”