Response of a nitrogen-filled spherical proportional counter to mono-energetic neutrons

Abstract

Neutron spectroscopy is an invaluable tool for a wide range of scientific and industrial applications, however, current approaches suffer from limitations that restrict their field of applicability. A safe and inexpensive alternative approach to neutron detection and spectroscopy is the use of a nitrogen-filled spherical proportional counter that exploits the ¹⁴N(n,p)¹⁴C and ¹⁴N(n,α)¹¹B reactions. The neutron spectroscopy capabilities of the detector are demonstrated using beams of mono-energetic neutrons. A nitrogen-filled spherical proportional counter, operating at a pressure of $1$ bar, is exposed to neutrons with energies from $0.75$ MeV to $2.75$ MeV at the Tandem accelerator of the National Centre for Scientific Research ``Demokritos'' in Athens. A linear energy response is observed, within the statistical precision of the measurements.

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BibTeX RIS

BibTeX

@misc{avgitas2026response,
  title = {{Response of a nitrogen-filled spherical proportional counter to mono-energetic neutrons}},
  author = {T Avgitas and M Axiotis and Z Balmforth and P Gadow and I Giomataris and D Fassouliotis and J Fock and P Knights and A Lagoyannis and I Manthos and L Millins and K Nikolopoulos and I Oceano and C Prodromou and L Schweder and E Taimpiri and C Toukmenidis and A Ziagkova and R Ward},
  howpublished = {HAL},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.07541},
  eprint = {2609.07541},
  archivePrefix = {arXiv},
  url = {https://hal.science/hal-05746459v1},
}

RIS

TY  - UNPB
TI  - Response of a nitrogen-filled spherical proportional counter to mono-energetic neutrons
AU  - T Avgitas
AU  - M Axiotis
AU  - Z Balmforth
AU  - P Gadow
AU  - I Giomataris
AU  - D Fassouliotis
AU  - J Fock
AU  - P Knights
AU  - A Lagoyannis
AU  - I Manthos
AU  - L Millins
AU  - K Nikolopoulos
AU  - I Oceano
AU  - C Prodromou
AU  - L Schweder
AU  - E Taimpiri
AU  - C Toukmenidis
AU  - A Ziagkova
AU  - R Ward
PY  - 2026
DA  - 2026/09/07
PB  - HAL
DO  - 10.48550/arxiv.2609.07541
UR  - https://hal.science/hal-05746459v1
AB  - Neutron spectroscopy is an invaluable tool for a wide range of scientific and industrial applications, however, current approaches suffer from limitations that restrict their field of applicability. A safe and inexpensive alternative approach to neutron detection and spectroscopy is the use of a nitrogen-filled spherical proportional counter that exploits the ^14N(n,p)^14C and ^14N(n,α)^11B reactions. The neutron spectroscopy capabilities of the detector are demonstrated using beams of mono-energetic neutrons. A nitrogen-filled spherical proportional counter, operating at a pressure of $1$ bar, is exposed to neutrons with energies from $0.75$ MeV to $2.75$ MeV at the Tandem accelerator of the National Centre for Scientific Research ``Demokritos'' in Athens. A linear energy response is observed, within the statistical precision of the measurements.
ER  -

Abstract

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