A New Method of Neutron Detecton for UCN Lifetime Measrements

Book · Wed Jan 01 00:00:00 EST 2014

OSTI ID:1265374

Morris, C. L. ^[1]; Salvat, D. J. ^[2]; Adamek, E. R. ^[2]; Bowman, D. ^[3]; Clayton, S. ^[1]; Cude, C. ^[2]; Fox, W. ^[2]; Hogan, G. ^[1]; Hickerson, K. ^[4]; Holley, A. T. ^[2]; Liu, C. -Y. ^[2]; Makela, M. ^[1]; Manus, G. ^[2]; Penttila, S. ^[3]; Ramsey, J. ^[1]; Saunders, A. ^[1]; Sawtelle, S. ^[2]; Seestrom, S. J. ^[1]; Solberg, K. ^[2]; Vanderwerp, J. ^[2] ; VornDick, B. ^[5]; Walstrom, P. ^[1]; Wang, Z. ^[1]; Young, A. R. ^[5]

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1. Los Alamos National Laboratory (LANL)
2. Indiana University
3. Oak Ridge National Laboratory (ORNL)
4. California Institute of Technology (Caltech), Pasadena
5. North Carolina State University (NCSU), Raleigh

A number of inconsistant neutron lifetime measurements have been reported. The disagreement among the various measurements made with material neutron traps with ultra-cold neutrons (UCN) suggests unaccounted for systematic errors in these measurements. One potential source of error is due to the long emptying times which may be time dependent due to the UCN phase space evolution in the trap. We present a way to reduce this effect.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1265374
• Country of Publication: United States
• Language: English