Quantification of trace amounts of transmuted nuclides in transmutation detectors using SIMS

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F20%3AN0000039" target="_blank" >RIV/26722445:_____/20:N0000039 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/abs/pii/S0168900220300413" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0168900220300413</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nima.2020.163471" target="_blank" >10.1016/j.nima.2020.163471</a>

Result language

angličtina

Original language name

Quantification of trace amounts of transmuted nuclides in transmutation detectors using SIMS

Original language description

Neutron detectors based on neutron induced transmutation of nuclides of high-purity materials into other stable nuclides has been recently proposed to improve accuracy of long-term measurement of neutron fluence in fission nuclear reactors. The inductively coupled plasma mass spectrometry (ICP-MS) and the prompt gamma neutron activation analysis (PGNAA) have been used for the measurement of concentration of transmuted nuclides, which was then converted into neutron fluence using known neutron-reaction cross sections. In this work, the concentrations of transmuted elements were measured with a magnetic-sector secondary ion mass spectrometer (SIMS) instead of ICP-MS or PGNAA. Single crystals of Si, Ge and a polycrystalline metal foil of Ni were used as detector materials. The concentrations were measured down to sub ppb range in Si and Ge crystals. 9 prospective nuclides for transmutation detectors - Mg-25, (26)mg, Al-27, P-31 Zn-67, Ga-69, Ga-71, Ni-59, Ni-63 were measured and compared to a reference neutron activation detector (NAD) method with neutron reaction cross section values taken from two different databases. With exception of Mg-26, the values determined using SIMS were within 20 % compared to those obtained using NADs with a cross section value from one or both databases. In case of Mg-26 the difference between the results of SIMS and NAD methods was higher than 45 % for data from both databases. This discrepancy for Mg-26 measurement was assigned tentatively to uncertainties of the neutron reaction cross section values. Nevertheless, the experiments proved distinct advantages of SIMS over ICP-MS in sample preparation and throughput, and in consuming micro-volumes of material and identified at least one well performing transmutation detector for thermal neutrons (Ge - single crystal) with agreement within 3 % between SIMS-TMD and NADs.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Project

<a href="/en/project/TG02010037" target="_blank" >TG02010037: COmmercialisation of results R&D for energy - CORD</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ISSN

0168-9002

e-ISSN

1872-9576

Volume of the periodical

959

Issue of the periodical within the volume

April

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

5

Pages from-to

1-5

UT code for WoS article

000518368800030

EID of the result in the Scopus database

2-s2.0-85078842256