Published 2018
| Version v1
Publication
Improved background suppression for radiative capture reactions at LUNA with HPGe and BGO detectors
Creators
- A. Boeltzig
- A. Best
- G. Imbriani
- M. Junker
- M. Aliotta
- D. Bemmerer
- C. Broggini
- C. G. Bruno
- R. Buompane
- A. Caciolli
- F. Cavanna
- T. Chillery
- G. F. Ciani
- P. Corvisiero
- L. Csedreki
- T. Davinson
- R. J. deBoer
- R. Depalo
- A. Di Leva
- Z. Elekes
- F. Ferraro
- E. M. Fiore
- A. Formicola
- Z. Fülöp
- G. Gervino
- A. Guglielmetti
- C. Gustavino
- G. Gyürky
- I. Kochanek
- R. Menegazzo
- V. Mossa
- F. R. Pantaleo
- V. Paticchio
- R. Perrino
- D. Piatti
- P. Prati
- L. Schiavulli
- K. Stöckel
- O. Straniero
- F. Strieder
- T. Szücs
- M. P. Takács
- D. Trezzi
- M. Wiescher
- S. Zavatarelli
Contributors
Others:
- Boeltzig, A.
- Best, A.
- Imbriani, G.
- Junker, M.
- Aliotta, M.
- Bemmerer, D.
- Broggini, C.
- Bruno, C. G.
- Buompane, R.
- Caciolli, A.
- Cavanna, F.
- Chillery, T.
- Ciani, G. F.
- Corvisiero, P.
- Csedreki, L.
- Davinson, T.
- Deboer, R. J.
- Depalo, R.
- Di Leva, A.
- Elekes, Z.
- Ferraro, F.
- Fiore, E. M.
- Formicola, A.
- Fülöp, Z.
- Gervino, G.
- Guglielmetti, A.
- Gustavino, C.
- Gyürky, G.
- Kochanek, I.
- Menegazzo, R.
- Mossa, V.
- Pantaleo, F. R.
- Paticchio, V.
- Perrino, R.
- Piatti, D.
- Prati, P.
- Schiavulli, L.
- Stöckel, K.
- Straniero, O.
- Strieder, F.
- Szücs, T.
- Takács, M. P.
- Trezzi, D.
- Wiescher, M.
- Zavatarelli, S.
Description
Direct measurements of small nuclear reaction cross sections require a low
background in the signal region of interest to achieve the necessary sensitivity.
We describe two complementary detector setups that have been used for
studies of (p, gamma) reactions with solid targets at the Laboratory for Underground
Nuclear Astrophysics (LUNA): a high-purity germanium detector and a bismuth
germanate (BGO) detector. We present the effect of a customised lead
shielding on the measured background spectra in the two detector setups at
LUNA. We developed a model to describe the contributions of environmental
and intrinsic backgrounds in the BGO detector measurements. Furthermore we
present an upgrade of the data acquisition system for our BGO detector, which
allows us to exploit the features of the segmented detector and overcome some
of the limitations encountered in previous experiments. We conclude with a
discussion on the improved sensitivity of the presented setups, and the benefits
for ongoing and possible future measurements.
Additional details
Identifiers
- URL
- http://hdl.handle.net/11567/887166
- URN
- urn:oai:iris.unige.it:11567/887166
Origin repository
- Origin repository
- UNIGE