A prototype neutron-detector array for future deep-underground s-process studies

被引：0

作者：

Chillery, Thomas ^{[1
]}

Rapagnani, David ^{[2
,3
]}

Ananna, Chemseddine ^{[4
,5
]}

D'Amore, Edoardo ^{[6
,7
]}

Imbriani, Gianluca ^{[2
,3
]}

di Leva, Antonino ^{[2
,3
]}

Mercogliano, Daniela ^{[2
,3
]}

Skowronski, Jakub ^{[6
,7
]}

Brueckner, Benjamin ^{[8
]}

Dellmann, Sophia ^{[9
]}

Erbacher, Philipp ^{[8
]}

Heftrich, Tanja ^{[8
]}

Reifarth, Rene ^{[8
,9
]}

Weigand, Mario ^{[8
]}

Best, Andreas ^{[2
,3
]}

机构：

[1] Ist Nazl Fis Nucleare, Lab Nazl Gran Sasso, Via G Acitelli 22, I-67100 Laquila, AQ, Italy

[2] Univ Napoli Federico II, Dipartimento Fis, Via Cintia 21, I-80126 Naples, NA, Italy

[3] INFN, Sez Napoli, Naples, Italy

[4] Univ Salento, Dipartimento Matemat & Fis, Via Arnesano Snc, I-73100 Lecce, LE, Italy

[5] INFN, Sez Lecce, Lecce, Italy

[6] Univ Padua, Dipartimento Fis, Via Marzolo 8, I-35131 Padua, Italy

[7] INFN, Sez Padova, I-35131 Padua, Italy

[8] Goethe Univ Frankfurt, Max Von Laue Str 1, D-60438 Frankfurt, Germany

[9] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2025年 / 52卷 / 07期

关键词：

experimental physics; neutron detection; liquid scintillators; nuclear physics; simulation; machine-learning; IDENTIFICATION; C-13(ALPHA;

D O I：

10.1088/1361-6471/adeda7

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We report a novel neutron-detection approach employing an EJ-309 liquid scintillator surrounded by six He-3 proportional counters. Tests were performed at the FRANZ facility of the Goethe-University Frankfurt using the Li-7(p, n(0))Be-7 reaction, producing neutrons across energies 50-720 keV. The scintillator's neutron energy quenching is determined, and its neutron/gamma-ray discrimination performance is evaluated. The lowest detectable neutron energy is 163 keV. EJ-309-He-3 counter neutron coincidences are compared with those from simulations. This array forms the prototype of a larger design, called scintillator-He-3 array for deep-underground experiments on the S-process, currently undergoing construction and testing for an upcoming deep-underground study of the Ne-22(alpha, n)Mg-25 reaction cross-section at the freshly-commissioned Bellotti Ion Beam facility of the INFN Laboratori Nazionali del Gran Sasso. This upcoming project is expected to achieve exceptionally low sensitivity for measuring the cross section at energies of interest for the astrophysical 'weak' and 'main' slow neutron-capture processes.

引用

页数：16

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