Publication detail

High Energy Gamma Radiation Induced by Fast Neutrons from Californium Source in NaI(Tl) Detector in Close Geometry Measurements

KRÁL, D. ŠŤASTNÝ, O. KATOVSKÝ, K. MARIANNO, C.

Original Title

High Energy Gamma Radiation Induced by Fast Neutrons from Californium Source in NaI(Tl) Detector in Close Geometry Measurements

Type

conference paper

Language

English

Original Abstract

A paper deals with the measurement of the effect of fast neutrons from the Cf-252 neutron source on the muon background detection with the NaI(Tl) scintillation detector. Previous research at TAMU has shown a possibility to measure high-energy cosmic ray particles, or secondarily produced muons, to predict the natural neutron background in the search for artificial neutron sources by mobile systems. One of the problems encountered in testing with Cf-252 was the increased contribution of high-energy gamma rays at small distances between the neutron source and the detector, which affects muon measurements. A primary source of a prompt gamma radiation, was found in the capsule of neutron source and AmBe material itself. More gamma photons are produced by neutrons in the detector crystal. If there is a moderator between the source and the detector, the contribution of this radiation increases due to neutron capture reactions. For higher neutron energies are crucial inelastic scattering, proton emission, alpha particle emission or multiple neutron emission accompanied by prompt gamma emission. On the other hand, experiments have not confirmed the effect of a steel plate between the detector and the neutron source. The solution may be to increase the lower discrimination during measurement with NaI(Tl) or to analyze the region between 8--14~MeV for the unusual increase in the number of pulses.

Keywords

scintillation detector; sodium iodide; gamma radiation; neutron; Cf source; prompt gamma

Authors

KRÁL, D.; ŠŤASTNÝ, O.; KATOVSKÝ, K.; MARIANNO, C.

Released

28. 6. 2023

Publisher

Institute of Electrical and Electronics Engineers - IEEE

Location

Piscataway, New Jersey, USA/Brno, Czech Republic

ISBN

979-8-3503-3593-4

Book

2023 23rd International Scientific Conference on Electric Power Engineering (EPE)

Edition

1

Edition number

1

ISBN

2376-5631

Periodical

Proceedings of the ... International Scientific Conference on Electric Power Engineering

Year of study

23

Number

1

State

United States of America

Pages count

6

URL

https://ieeexplore.ieee.org/document/10149272

BibTex

@inproceedings{BUT183793,
  author="Dušan {Král} and Ondřej {Šťastný} and Karel {Katovský} and Craig {Marianno}",
  title="High Energy Gamma Radiation Induced by Fast Neutrons from Californium Source in NaI(Tl) Detector in Close Geometry Measurements",
  booktitle="2023  23rd International Scientific Conference on Electric Power Engineering (EPE)",
  year="2023",
  series="1",
  journal="Proceedings of the ... International Scientific Conference on Electric Power Engineering",
  volume="23",
  number="1",
  pages="6",
  publisher="Institute of Electrical and Electronics Engineers - IEEE",
  address="Piscataway, New Jersey, USA/Brno, Czech Republic",
  doi="10.1109/EPE58302.2023.10149272",
  isbn="979-8-3503-3593-4",
  issn="2376-5631",
  url="https://ieeexplore.ieee.org/document/10149272"
}