| ID | 16 |
|---|---|
| Type | G - General request |
| Target | 95-Am-243 |
| Reaction | (n,f) |
| Quantity | prompt n - Prompt neutron production |
| Incident energy | Eth - 10 MeV |
| Accuracy | 10 % |
| Field(s) | ADS |
| Subfield | Fast fission spectra |
| Accepted date | 10-Sep-2008 |
| Status | Work in progress |
| Latest review date | 28-Apr-2022 |
Requester
Mr Toshinobu SASA at JAEA, JPN
Project (context)
J-PARC
Impact
It is necessary in the ADS design study. Obninsk scientists report important difference of fission neutron spectra from ENDF/B-VI evaluation at MeV energies.
Justification document
T. Sugawara, K. Sugino, T. Sasa, "SND2006-V.10: Design of MA-loaded Core Experiments using J-PARC", T. Fukahori (Ed.), Proc. of 2006 Symposium on Nuclear Data, Jan. 25-26, 2007, RICOTTI, Tokai-mura, Ibaraki-ken, Japan, ISBN978-4-89047-138-6, Nuclear Data Division, Atomic Energy Society of Japan (2007) [CD-ROM].
Review comment
It appears that experimental work for the neutron-induced reaction will be near to impossible on account of the required amount of sample material. Could this work be carried out by using a transfer reaction?
The importance of the fission neutron spectrum is not contested. It is a significant problem also for the major actinides and for those it is a recurrent subject of debate. The present request is dubbed a general request since it is not backed by a direct sensitivity study. The methodology of such sensitivity studies was recently explored by WPEC Subgroup 26 ( International Evaluation Co-operation, Volume 26 ). In that report it is also mentioned that substantial uncertainties may result from the fission spectrum but that further work is required.
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
