In:
Journal of Instrumentation, IOP Publishing, Vol. 16, No. 12 ( 2021-12-01), p. T12001-
Abstract:
The new facility, Extreme Light Infrastructure – Nuclear
Physics (ELI-NP), is a combined laser-gamma nuclear physics research facility currently undergoing its final implementation stages in
Măgurele near Bucharest, Romania. It already hosts two fully-operational 10 PW laser arms and, by 2023, it will also house
a γ-beam system based on laser Compton backscattering, capable of delivering a high-brilliance, low-energy beam at E γ ≲ 19.5 MeV. Owing to this unique laser-gamma
instrumentation combination, several types of experiments will be possible at ELI-NP, including high precision nuclear resonance
fluorescence (NRF) experiments. In this case, the main γ-beam detection system for performing NRF studies at ELI-NP is represented
by the ELI Array of DEtectors (ELIADE), featuring eight high-purity germanium (HPGe) segmented clover detectors. The current work
presents the characteristics of two of the ELIADE detectors, including their photopeak detection efficiency, energy resolution,
and peak-to-total ratio measured using γ-ray sources, as well as the timing performance obtained via in-beam measurements. For
these latter detector tests, 130 La was populated via the fusion
evaporation reaction 121 Sb( 12 C,3n) 130 La using a beam
energy of 53 MeV at the Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), also located in
Măgurele. Herein, we report on the results of the ^130La linear polarization measurements taken using the ELIADE detectors as
Compton polarimeters. The results obtained from the in-beam experiment were compared to several already published works and we
present new information on the transition multipolarity in 130 La.
Type of Medium:
Online Resource
ISSN:
1748-0221
DOI:
10.1088/1748-0221/16/12/T12001
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2021
detail.hit.zdb_id:
2235672-1
