Nuclear data: fission yields, decay heat and neutron reaction cross sections: A Proposal for a Nuclear Data Consortium Universities of Manchester, Surrey & York. 3 Strands. nTOF TAS STEFF. Nuclear Data: Collection, Dissemination and Usage. Industrial Nuclear Data.
fission yields, decay heat and neutron reaction cross sections:
A Proposal for a Nuclear Data Consortium
Universities of Manchester, Surrey & York
Nuclear Data: Collection, Dissemination and Usage
Academic Nuclear Data
mostly for physics
UK Nuclear Industry
WPEC (NEA OECD)
BROND (Former USSR)
Studsvik of America,
nTOF: Class A International Facility
Recruit Research Fellow (C-NET)
Formally join nTOF.
Contribute to equipment, target material, join in running experiment shifts and analysis work.
Network York, (NNL support for Manchester activities)
Support data evaluation effort, dissemination.
Interests: initially with neutron capture cross section measurements relevant to current and new generation reactors as identified in NEA High Priority Request List (238U, 241Am, 243Am)
New proposal to the INTC PAC in Nov 2010:
Fission of 240/242Pu, 245Cm, 232/234Th, 238U, Ratio( 238U/235U ).
Later through consultation.
Fission fragment spectrometer “STEFF”
(running off-line at Manchester with 252Cf – later moves to GANIL - NFS)
~£250 k already invested
Current Mass resolution ~4%
Upgrade: increase T by factor 3
Anode signal After digital filtering
Noise < 0.2%
Novel Digital Pulse-shape analysis
Low-noise energy measurements
Z sensitivity ~ 1/40
STEFF Upgrade and NFS Programme
Increase FF flight path to 3m
Maintain solid angle
Obtain mass resolution ~ 1%
After discussions with NNL, suggest:
238U, 239Pu and 237Np, En=1-20 MeV.
TAGS response for 22Na
source and Monte Carlo
Significant discrepancies (i.e. factors of 2-3 in some cases) between JEFF and TAGS
89,90Kr, 96Y, 99,100Zr, 98,99,102Nb, 103Mo, 103Tc, 132Sb, 135Te,
136,136mI, 139,140Xe, and 143La. (WPEC Priority-1 Nuclei)
J. Billowes + NDA Student
Manchester R.F. (C-NET) R. Mills (V.F, NNL)
W. Gelletly A. Nichols
UKNSF: Nichols (Chair), Mills, Billowes, Regan.