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Neutron production in (alpha,n) reactions in SOURCES4

by Vitaly A. Kudryavtsev, Piotr Krawczun and Rayna Bocheva

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Submission summary

Authors (as registered SciPost users): Vitaly Kudryavtsev
Submission information
Preprint Link: scipost_202209_00068v1  (pdf)
Date accepted: 2023-04-28
Date submitted: 2022-09-30 19:08
Submitted by: Kudryavtsev, Vitaly
Submitted to: SciPost Physics Proceedings
Proceedings issue: 14th International Conference on Identification of Dark Matter (IDM2022)
Ontological classification
Academic field: Physics
  • High-Energy Physics - Experiment
Approach: Computational


Neutrons produced in spontaneous fission processes and (alpha,n) reactions can induce background events in underground experiments looking for rare processes. A number of computer codes are available to calculate cross-sections of (alpha,n) reactions, branching ratios to various states and neutron yields. SOURCES4 code has been used in this work to calculate neutron yields and energy spectra with input cross-sections and branching ratios taken from experimental data and models from EMPIRE2.19/3.2.3 and TALYS1.9 codes. A comparison of SOURCES4 calculations with experimental data from alpha beams and radioactive decay chains are presented.

Published as SciPost Phys. Proc. 12, 018 (2023)

Reports on this Submission

Anonymous Report 1 on 2022-11-8 (Invited Report)

  • Cite as: Anonymous, Report on arXiv:scipost_202209_00068v1, delivered 2022-11-08, doi: 10.21468/SciPost.Report.6099


Giving the availability of different tools for simulations authors present optimised version of one of them - SOURCES4 code and comparison with other s and available data. Optimisation of this code (version 4A) thanks to including data from experiments and models from two other code gives important possibility to have a reliable simulation of neutron production in extended energy range.

Would this version of the code be published for common use?


Well explained and written text. I recommend it for publication as it is.

  • validity: high
  • significance: high
  • originality: high
  • clarity: high
  • formatting: excellent
  • grammar: excellent

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Vitaly Kudryavtsev  on 2022-11-09  [id 2999]

answer to question

I would like to thank the reviewer for positive comments.
Concerning availability of the code for common use, my approach has always been the same. Since none of us (authors of this or previous publications) has been an author of the original code, we cannot really distribute the code ourselves. A user will need to request the code (and most likely pay for it) from Oak Ridge library (the fee is for library maintenance, not for the code itself). After that I can send updated libraries of cross-sections and branching ratios (for free) to the user on their request.

Anonymous on 2022-11-09  [id 3000]

(in reply to Vitaly Kudryavtsev on 2022-11-09 [id 2999])
answer to question

Dear author,

thank you for clarification.

Best regards.