Characterization of the LUNA neutron detector array for the measurement of the 13C(, )16O reaction
- Creators
- L. Csedreki
- G. F. Ciani
- J. Balibrea-Correa
- A. Best
- M. Aliotta
- F. Barile
- D. Bemmerer
- A. Boeltzig
- C. Broggini
- C. G. Bruno
- A. Caciolli
- F. Cavanna
- T. Chillery
- P. Colombetti
- P. Corvisiero
- T. Davinson
- R. Depalo
- A. Di Leva
- Z. Elekes
- F. Ferraro
- E. M. Fiore
- A. Formicola
- Z. Fülöp
- G. Gervino
- A. Guglielmetti
- C. Gustavino
- G. Gyürky
- G. Imbriani
- Z. Janas
- M. Junker
- I. Kochanek
- M. Lugaro
- P. Marigo
- E. Masha
- C. Mazzocchi
- R. Menegazzo
- V. Mossa
- F. R. Pantaleo
- V. Paticchio
- R. Perrino
- D. Piatti
- P. Prati
- L. Schiavulli
- K. Stöckel
- O. Straniero
- T. Szücs
- M. P. Takács
- F. Terrasi
- S. Zavatarelli.
- Others:
- 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.
- Fülöp, Z.
- Gervino, G.
- Guglielmetti, A.
- Gustavino, C.
- Gyürky, 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.
- Stöckel, K.
- Straniero, O.
- Szücs, T.
- Takács, M. P.
- Terrasi, F.
- Zavatarelli., S.
Description
We introduce the LUNA neutron detector array developed for the investigation of the 13C(, )16O reaction towards its astrophysical -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 E,lab = 300 − 400 keV (En = 2.2 − 2.6 MeV 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 an improvement of two orders of magnitude over the state of the art allowing a direct measurement of the 13C(, )16O cross-section down to E,lab = 300 keV. The absolute neutron detection efficiency of the setup was determined using the 51V(p,n)51Cr reaction and an AmBe radioactive source, and completed with a Geant4 simulation. We determined a (34 ± 3)% and (38 ± 3)% detection efficiency for the vertical and horizontal configurations, respectively, for En = 2.4 MeV neutrons.
Additional details
- URL
- http://hdl.handle.net/11567/1039305
- URN
- urn:oai:iris.unige.it:11567/1039305
- Origin repository
- UNIGE