| Request ID | 16 | Type of the request | General request | ||
| Target | Reaction and process | Incident Energy | Secondary energy or angle | Target uncertainty | Covariance |
| 95-AM-243 | (n,f) prompt n | Eth-10 MeV | 10 | ||
| Field | Subfield | Date Request created | Date Request accepted | Ongoing action | |
| ADS | Fast fission spectra | 08-NOV-07 | 10-SEP-08 | Y | |
Requester: Mr Toshinobu SASA at JAEA, JPN
Email: toshinobu.sasa@cao.go.jp
Project (context): J-PARC
Impact:
Accuracy:
Justification document:
Comment from requester:
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 (link to WPEC Subgroup 26 Report in PDF format, 6 Mb). In that report it is also mentioned that substantial uncertainties may result from the fission spectrum but that further work is required.
Entry Status:
Main references: Experiments Additional file attached:sugawara_t(MA-cores_JPARC).pdf
Requester: Mr Toshinobu SASA at JAEA, JPN
Project (context): J-PARC
Impact:
Accuracy:
Justification document:
Comment from requester:
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 (link to WPEC Subgroup 26 Report in PDF format, 6 Mb). In that report it is also mentioned that substantial uncertainties may result from the fission spectrum but that further work is required.
Entry Status:
Main references: Additional file attached:sugawara_t(MA-cores_JPARC).pdf
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.
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].
Work in progress (as of SG-C review of May 2018)
Please report any missing information to hprlinfo@oecd-nea.org
Additional file attached:
Request ID 17
Type of the request General request
Target Reaction and process Incident Energy Secondary energy or angle Target uncertainty Covariance
96-CM-244 (n,f) prompt n Eth-10 MeV 10
Field Subfield Date Request created Date Request accepted Ongoing action
ADS Fast fission spectra 08-NOV-07 10-SEP-08 Y
Email: toshinobu.sasa@cao.go.jp
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.
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].
Work in progress (as of SG-C review of May 2018)
Please report any missing information to hprlinfo@oecd-nea.org
Additional file attached: