Improved background suppression for radiative capture reactions at LUNA with HPGe and BGO detectors

A. Boeltzig; A. Best; G. Imbriani; M. Junker; M. Aliotta; D. Bemmerer; C. Broggini; C. G. Bruno; R. Buompane; Antonio  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; György Gyürky; I. Kochanek; Roberto  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; Davide Trezzi; M  Wiescher; S  Zavatarelli

doi:10.1088/1361-6471/aaa163

Improved background suppression for radiative capture reactions at LUNA with HPGe and BGO detectors

A. Boeltzig, A. Best, G. Imbriani, M. Junker, M. Aliotta, D. Bemmerer, C. Broggini, C. G. Bruno, R. Buompane, Antonio Caciolli, F. Cavanna, T. Chillery, G. F. Ciani, P Corvisiero, L. Csedreki, T. Davinson, R. J. deBoer, R. Depalo, A. Di Leva, Z ElekesF. Ferraro, E. M. Fiore, A Formicola, Z. Fülöp, G Gervino, A Guglielmetti, C Gustavino, György Gyürky, I. Kochanek, Roberto 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, Davide Trezzi, M Wiescher, S Zavatarelli

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

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, γ) 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.

Original language	English
Article number	025203
Journal	Journal of Physics G: Nuclear and Particle Physics
Volume	45
Issue number	2
DOIs	https://doi.org/10.1088/1361-6471/aaa163
Publication status	Published - 18 Jan 2018

Keywords / Materials (for Non-textual outputs)

background reduction
BGO
gamma ray spectroscopy
HPGe
nuclear astrophysics
shielding
summing detector

Access to Document

10.1088/1361-6471/aaa163

http://stacks.iop.org/0954-3899/45/i=2/a=025203?key=crossref.783e7b81c07463993d003b07c6ea6263

Cite this

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., ... Zavatarelli, S. (2018). Improved background suppression for radiative capture reactions at LUNA with HPGe and BGO detectors. Journal of Physics G: Nuclear and Particle Physics, 45(2), Article 025203. https://doi.org/10.1088/1361-6471/aaa163

@article{33b20c0cf480465c9d43cf3523631120,

title = "Improved background suppression for radiative capture reactions at LUNA with HPGe and BGO detectors",

abstract = "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, γ) 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.",

keywords = "background reduction, BGO, gamma ray spectroscopy, HPGe, nuclear astrophysics, shielding, summing detector",

author = "A. Boeltzig and A. Best and G. Imbriani and M. Junker and M. Aliotta and D. Bemmerer and C. Broggini and Bruno, {C. G.} and R. Buompane and Antonio Caciolli and F. Cavanna and T. Chillery and Ciani, {G. F.} and P Corvisiero and L. Csedreki and T. Davinson and deBoer, {R. J.} and R. Depalo and {Di Leva}, A. and Z Elekes and F. Ferraro and Fiore, {E. M.} and A Formicola and Z. F{\"u}l{\"o}p and G Gervino and A Guglielmetti and C Gustavino and Gy{\"o}rgy Gy{\"u}rky and I. Kochanek and Roberto Menegazzo and V. Mossa and Pantaleo, {F. R.} and V. Paticchio and R. Perrino and D. Piatti and P Prati and L. Schiavulli and K. St{\"o}ckel and O Straniero and F Strieder and T Sz{\"u}cs and Tak{\'a}cs, {M. P.} and Davide Trezzi and M Wiescher and S Zavatarelli",

year = "2018",

month = jan,

day = "18",

doi = "10.1088/1361-6471/aaa163",

language = "English",

volume = "45",

journal = "Journal of Physics G: Nuclear and Particle Physics",

issn = "0954-3899",

publisher = "IOP Publishing",

number = "2",

}

Boeltzig, A, Best, A, Imbriani, G, Junker, M, Aliotta, M, Bemmerer, D, Broggini, C, Bruno, CG, Buompane, R, Caciolli, A, Cavanna, F, Chillery, T, Ciani, GF, Corvisiero, P, Csedreki, L, Davinson, T, deBoer, RJ, Depalo, R, Di Leva, A, Elekes, Z, Ferraro, F, Fiore, EM, Formicola, A, Fülöp, Z, Gervino, G, Guglielmetti, A, Gustavino, C, Gyürky, G, Kochanek, I, Menegazzo, R, Mossa, V, Pantaleo, FR, Paticchio, V, Perrino, R, Piatti, D, Prati, P, Schiavulli, L, Stöckel, K, Straniero, O, Strieder, F, Szücs, T, Takács, MP, Trezzi, D, Wiescher, M & Zavatarelli, S 2018, 'Improved background suppression for radiative capture reactions at LUNA with HPGe and BGO detectors', Journal of Physics G: Nuclear and Particle Physics, vol. 45, no. 2, 025203. https://doi.org/10.1088/1361-6471/aaa163

TY - JOUR

T1 - Improved background suppression for radiative capture reactions at LUNA with HPGe and BGO detectors

AU - Boeltzig, A.

AU - Best, A.

AU - Imbriani, G.

AU - Junker, M.

AU - Aliotta, M.

AU - Bemmerer, D.

AU - Broggini, C.

AU - Bruno, C. G.

AU - Buompane, R.

AU - Caciolli, Antonio

AU - Cavanna, F.

AU - Chillery, T.

AU - Ciani, G. F.

AU - Corvisiero, P

AU - Csedreki, L.

AU - Davinson, T.

AU - deBoer, R. J.

AU - Depalo, R.

AU - Di Leva, A.

AU - Elekes, Z

AU - Ferraro, F.

AU - Fiore, E. M.

AU - Formicola, A

AU - Fülöp, Z.

AU - Gervino, G

AU - Guglielmetti, A

AU - Gustavino, C

AU - Gyürky, György

AU - Kochanek, I.

AU - Menegazzo, Roberto

AU - Mossa, V.

AU - Pantaleo, F. R.

AU - Paticchio, V.

AU - Perrino, R.

AU - Piatti, D.

AU - Prati, P

AU - Schiavulli, L.

AU - Stöckel, K.

AU - Straniero, O

AU - Strieder, F

AU - Szücs, T

AU - Takács, M. P.

AU - Trezzi, Davide

AU - Wiescher, M

AU - Zavatarelli, S

PY - 2018/1/18

Y1 - 2018/1/18

N2 - 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, γ) 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.

AB - 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, γ) 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.

KW - background reduction

KW - BGO

KW - gamma ray spectroscopy

KW - HPGe

KW - nuclear astrophysics

KW - shielding

KW - summing detector

UR - http://www.scopus.com/inward/record.url?scp=85040684625&partnerID=8YFLogxK

U2 - 10.1088/1361-6471/aaa163

DO - 10.1088/1361-6471/aaa163

M3 - Article

AN - SCOPUS:85040684625

SN - 0954-3899

VL - 45

JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

IS - 2

M1 - 025203

ER -

Improved background suppression for radiative capture reactions at LUNA with HPGe and BGO detectors

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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