Determination of boron in borated concrete by means of a simplified prompt gamma activation analysis at the HOTNES facility

被引：2

作者：

Pietropaolo, A. ^{[1
,2
]}

Russo, L. ^{[2
]}

Calamida, A. ^{[2
]}

Campoy, A. I. Castro ^{[2
]}

Cottone, D. ^{[3
,4
]}

Bedogni, R. ^{[2
]}

机构：

[1] ENEA, Dept Fus & Technol Nucl Safety & Secur, Frascati, Italy

[2] INFN, Lab Nazl Frascati, Via Enrico Fermi 54, I-00044 Frascati, Italy

[3] Tecnostrutture Srl, Via A Meucci 26, I-30020 Noventa Di Piave, Italy

[4] SVA Srl BARIBLOCK, Via A Meucci 26, I-30020 Noventa Di Piave, Italy

来源：

EUROPEAN PHYSICAL JOURNAL PLUS | 2023年 / 138卷 / 12期

关键词：

THERMAL-NEUTRON FACILITY; SHIELDING EFFICIENCY; SORGENTINA-RF;

D O I：

10.1140/epjp/s13360-023-04752-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The prompt gamma activation analysis (PGAA) is an elemental analysis based on the gamma-ray emission following neutron radiative capture by nuclides. A simplified and compact PGAA for the determination of boron in borated concrete was setup at the HOTNES neutron facility, relying on common laboratory equipment. The thermal neutron field has fluence rate of about 20 cm-2 s-1 and is obtained from a moderated americium-boron neutron source. The gamma-ray detector is a common 3 '' x 3 '' NaI(Tl) scintillator. Samples of borated resin with the same geometry of the concrete samples were manufactured and used as standards. A specific "blank sample" correction was developed to isolate the boron contribution in the spectra obtained by irradiating the concrete samples. Boron quantities in the order of 1.5-2.0 g were measured in the concrete samples with uncertainty in the order of +/- 6%, in agreement with manufacturer's expectations. The Detection Limit of this simplified and compact boron analysis is in the order of 0.3 g in terms of boron mass, in line with values given in literature for PGAA-based boron analysis performed at research fission reactors.

引用

页数：6