| Request ID | 116 | Type of the request | High Priority request | ||
|---|---|---|---|---|---|
| Target | Reaction and process | Incident Energy | Secondary energy or angle | Target uncertainty | Covariance |
| 3-LI-0 | (d,x)Be-7 SIG | 10 MeV-40 MeV | 10 | Y | |
| Field | Subfield | Created date | Accepted date | Ongoing action | Archived Date |
| Fusion | DONES, IFMIF | 15-MAY-21 | 31-MAY-21 | Y | |
Send a comment on this request to NEA.
Requester: Dr Stanislav SIMAKOV at KIT, GER
Email: intersurfen@gmail.com
Project (context): Fusion (DONES, IFMIF) and Accelerator driven neutron sources (e.g., SARAF-II)
Impact: The Li(d,x)7Be reactions will produce 100% of radioactive isotope 7Be in the IFMIF Li loop [1]. Consequently the accuracy of the Li(d,x)7Be cross sections will solely impact on the efficiency, design and cost of the IFMIF radio-protection measures which should guarantee the safe accumulation of 7Be in the lithium loop Heat Exchanger and cold inventory traps [2,3]. [1] S. Simakov et al., “Assessment of the 3H and 7Be generation in the IFMIF lithium loop”, J. Nucl. Mat. 329 (2004) 213
Accuracy: Uncertainties below 10% as a reasonable compromise between application needs and what is practically achievable using standard techniques.
Justification document: In the requested deuteron energy range from 10 MeV to 40 MeV (the latter is DONES working energy) there are no experimental data for the 6,7Li(d,x)7Be reaction cross sections. Moreover, the evaluated major deuteron libraries (ENDF, JEFF, FENDL, TENDL) including the just-released JENDL/DEU disagree from the existing measurements below 10 MeV. More details on the status of the cross section data are available in the following documents:
Comment from requester:
Additional file attached: Simakov_EGHPRL_2021May.pdf
Review comment:
Entry Status:
Main recent references:
[2] A. Ibarra et al., “The European approach to the fusion-like neutron source: the IFMIF-DONES project”, Nuclear Fusion 59 (2019) 065002
[3] F. Martín-Fuertes et al., “Integration of Safety in IFMIF-DONES Design”, Safety 5 (2019) 74
S. Simakov et al., “Status and benchmarking of the deuteron induced Tritium and Beryllium-7 production cross sections in Lithium”, KIT Scientific Working Papers 147, KIT, June 2020; EFFDOC-1438, JEFF Meetings, NEA, November 2020; Presentation at EG HRPL, WPEC Meetings, NEA, 12 May 2021 (see attached file below).
Work in progress (as of SG-C review of May 2021)
Please report any missing information to hprlinfo@oecd-nea.org
