ID | 25 |
---|---|
Type | H - High priority request |
Target | 96-Cm-244 |
Reaction | (n,f) |
Quantity | SIG - Cross section |
Incident energy | 65 keV - 6 MeV |
Accuracy | 2-20 % |
Field(s) | Fission |
Subfield | Fast Reactors (ADMAB) |
Accepted date | 12-Sep-2008 |
Status | Work in progress |
Latest review date | 28-Apr-2022 |
Requester
Prof. Massimo SALVATORES at CADARACHE, FR
Project (context)
NEA WPEC Subgroup 26
Impact
Requested accuracy is required to meet target accuracies for keff, peak power and burnup for the Accelerator-Driven Minor Actinides Burner (ADMAB). Details are provided in the OECD/NEA WPEC Subgroup 26 Final Report: "Uncertainty and Target Accuracy Assessment for Innovative Systems Using Recent Covariance Data Evaluations" (Final Draft attached).
Accuracy
Target accuracies are specified per system and per energy group when they are not met by the BOLNA estimate of the current (initial) uncertainties.
Energy Range | Initial versus target uncertainties (%) | ||||||
Initial | SFR | EFR | GFR | LFR | ADMAB | ||
6.07 - 2.23 MeV | 31 | 8 | 12 | 3 | |||
2.23 - 1.35 MeV | 44 | 8 | 13 | 14 | 3 | ||
1.35 - 0.498 MeV | 50 | 5 | 20 | 8 | 6 | 2 | |
498 - 183 keV | 37 | 12 | 4 | ||||
183 - 67.4 keV | 48 | 7 |
Justification document
OECD/NEA WPEC Subgroup 26 Final Report: "Uncertainty and Target Accuracy Assessment for Innovative Systems Using Recent Covariance Data Evaluations" (link to WPEC Subgroup 26 Report in PDF format, 6 Mb ).
Comment from requester
SFR: Sodium-cooled Fast Reactor in a TRU burning configuration, i.e., with a Conversion Ratio CR<1
EFR: European Fast Reactor with full recycling of MA and CR~1
GFR: Gas-cooled Fast Reactor also with full recycling of MA
LFR: Lead-cooled Fast Reactor as defined for an IAEA benchmark
ABTR: Advanced Burner Test Reactor Na-cooled core, recently studied within the GNEP initiative
ADMAB: Accelerator-Driven Minor Actinides Burner
PWR: Pressurized Water Reactor
Review comment
Experimentally the fission probability of the compound nucleus (245Cm) may be studied in detail through the use of a transfer reaction. The fission cross section for n+244Cm may then be inferred from a theoretical estimate of the compound nucleus formation cross section. Probably, this will be adequate for the EFR and GFR requirements and it could be sufficient for the SFR and LFR, as well.
Entry status
Work in progress (as of SG-C review of May 2018)
Main recent references
Please report any missing information to hprlinfo@oecd-nea.org
Experiments
Theory/Evaluation
Validation