Temporal and spatial resolution of the neutron probe for C/O nuclear well logging

Batur, Josip; Sudac, Davorin; Valković, Vladivoj; Orlić, Željko; Obhođaš, Jasmina; Nađ, Karlo; Uroić, Milivoj; Meric, Ilker; Pettersen, Helge E.S.; Perkovic, Adaleta; Gacina, Marko (2022) Temporal and spatial resolution of the neutron probe for C/O nuclear well logging. Radiation Physics and Chemistry, 200 . ISSN 0969-806X

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Abstract

The potential of detecting particular formation elements inside boreholes, separated by small distances, was investigated. Neutron probe, designed for C/O nuclear well logging and with associated alpha particle method (AAP) as its operational principle, was used. The measurements consisted of irradiating 0.5 l diesel-filled plastic bottle with fast tagged neutron beam. The bottle was placed in four positions along the axis of the probe, spaced by ∼ 10 cm; time spectrum for each position was obtained. The peaks in time spectra are separated by ∼ 2 ns, suggesting that neutron probe with AAP can, in principle, distinguish between parts of the formation separated by 10 cm. The results were confirmed by Monte Carlo (MC) simulations of the experiment.

Item Type:	Article
Uncontrolled Keywords:	Tagged neutrons; Monte-Carlo simulations; Temporal resolution; Spatial resolution
Subjects:	NATURAL SCIENCES > Physics > Nuclear Physics
Divisions:	Division of Experimental Physics
Projects:	Project title Project leader Project code Project type Nove primjene 14 MeV neutrona-NeA Davorin Sudac IP-2018-01-4060 HRZZ
Depositing User:	Josip Batur
Date Deposited:	16 Feb 2024 15:24
URI:	http://fulir.irb.hr/id/eprint/8598
DOI:	10.1016/j.radphyschem.2022.110215

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