Published 2020
| Version v1
Publication
A new approach to monitor 13C-targets degradation in situ for 13C(α, n)16O cross-section measurements at LUNA
Creators
- G. F. Ciani
- L. Csedreki
- J. Balibrea-Correa
- A. Best4
- 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
- L. Di Paolo
- Z. Elekes
- F. Ferraro
- E. M. Fiore
- A. Formicola
- Z. Fülöp
- G. Gervino
- A. Guglielmetti
- C. Gustavino
- G. Gyürky
- G. Imbriani
- M. Junker
- I. Kochanek
- M. Lugaro
- P. Marigo
- E. Masha
- 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
- D. Trezzi
- S. Zavatarelli
Contributors
Others:
- Ciani, G. F.
- Csedreki, L.
- Balibrea-Correa, J.
- Best4, 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.
- Di Paolo, L.
- Elekes, Z.
- Ferraro, F.
- Fiore, E. M.
- Formicola, A.
- Fülöp, Z.
- Gervino, G.
- Guglielmetti, A.
- Gustavino, C.
- Gyürky, G.
- Imbriani, G.
- Junker, M.
- Kochanek, I.
- Lugaro, M.
- Marigo, P.
- Masha, E.
- 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.
- Trezzi, D.
- Zavatarelli, S.
Description
Direct measurements of reaction cross-sections
at astrophysical energies often require the use of solid targets
able to withstand high ion beam currents for extended
periods of time. Thus, monitoring target thickness, isotopic
composition, and target stoichiometry during data taking is
critical to account for possible target modifications and to
reduce uncertainties in the final cross-section results. A common
technique used for these purposes is the Nuclear Resonant
Reaction Analysis (NRRA), which however requires that a narrowresonance be available inside the dynamic range
of the accelerator used. In cases when this is not possible,
as for example the 13C(α, n)16O reaction recently studied
at low energies at the Laboratory for Underground Nuclear
Astrophysics (LUNA) in Italy, alternative approaches must
be found. Here, we present a new application of the shape
analysis of primary γ rays emitted by the 13C(p, γ )14Nradiative
capture reaction. This approach was used to monitor 13C
target degradation in situ during the 13C(α, n)16Odata taking
campaign. The results obtained are in agreement with evaluations
subsequently performed at Atomki (Hungary) using the NRRA method. A preliminary application for the extraction
of the 13C(α, n)16O reaction cross-section at one beam
energy is also reported.
Additional details
Identifiers
- URL
- http://hdl.handle.net/11567/1001335
- URN
- urn:oai:iris.unige.it:11567/1001335
Origin repository
- Origin repository
- UNIGE