Characterization of the LUNA neutron detector array for the measurement of the 13C(α, n)16O reaction
- Csedreki L.
- Ciani G. F.
- Balibrea-Correa J.
- Best A.
- Aliotta M.
- Barile F.
- Bemmerer D.
- Boeltzig A.
- Broggini C.
- Bruno C. G.
- Caciolli A.
- Cavanna F.
- Chillery T.
- Colombetti P.
- Corvisiero P.
- Davinson T.
- Depalo R.
- Di Leva A.
- Elekes Z.
- Ferraro F.
- Fiore E. M.
- Formicola A.
- Fulop Z.
- Gervino G.
- Guglielmetti A.
- Gustavino C.
- Gyurky G.
- Imbriani G.
- Janas Z.
- Junker M.
- Kochanek I.
- Lugaro M.
- Marigo P.
- Masha E.
- Mazzocchi C.
- Menegazzo R.
- Mossa V.
- Pantaleo F. R.
- Paticchio V.
- Perrino R.
- Piatti D.
- Prati P.
- Schiavulli L.
- Stockel K.
- Straniero O.
- Szucs T.
- Takacs M. P.
- Terrasi F.
- Zavatarelli S.
DOIAbstract
We introduce the LUNA neutron detector array developed for the investigation of the 13C(α, n)16O reaction towards its astrophysical s-process Gamow peak in the low-background environment of the Laboratori Nazionali del Gran Sasso (LNGS). Eighteen 3He counters are arranged in two different configurations (in a vertical and a horizontal orientation) to optimize neutron detection efficiency, target handling and target cooling over the investigated energy range Eα,lab=300−400 keV (En=2.2−2.6MeV in emitted neutron energy). As a result of the deep underground location, the passive shielding of the setup and active background suppression using pulse shape discrimination, we reached a total background rate of 1.23±0.12 counts/hour. This resulted in...
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