Neutron emission characterization of IPR 14 MeV neutron generator

Mitul Abhangi, S. Vala, H. L. Swami, Ratnesh Kumar, A. Saxena, Rajesh Kumar, D. Raju

Research output: Contribution to journalArticlepeer-review


Accelerator-based neutron sources are being developed worldwide due to their wide applications. Institute for Plasma Research in India has developed an accelerator-based high-yield 14 MeV neutron generator based on deuterium-tritium (D-T) reaction to perform fusion-related benchmark experiments. This neutron generator is designed to produce 1012 neutrons per second in both mode continuous and pulse. The emission of neutrons from an accelerator-based neutron generator is not isotropic due to target geometry and angular dependency of reaction cross-section. A detailed and accurate description of neutron source emission and distribution is required to use such a neutron generator for various experiments. The neutron generator is characterized using experiments and simulations to accomplish the request. Energy and angular distributions of emitted neutrons are measured using a calibrated single crystal diamond (SCD) detector. Experimental data of neutron distributions are used to validate source neutron definition for Monte Carlo N Particle (MCNP) simulation. An accurate model of the Titanium Tritide (TiT) target and its holder geometry is prepared for the simulation. Finally, to validate the simulation model, simulated neutron fluxes are compared with measured ones by the SCD detector. This paper discusses the methodology adopted to characterize emitted neutrons and its results.

Original languageEnglish
Article number114522
JournalFusion Engineering and Design
StatePublished - Jul 2024
Externally publishedYes

Bibliographical note

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© 2024 Elsevier B.V.


  • 14 MeV neutrons
  • Anisotropy
  • Characterization of a neutron generator
  • MCNP
  • Neutron generator
  • TiT


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