Published December 30, 2002
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Journal Article
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Measurements of Ultracold-Neutron Lifetimes in Solid Deuterium
- Creators
-
Morris, C. L.
- Anaya, J.M.
- Bowles, T. J.
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Filippone, B.W.
- Geltenbort, P.
- Hill, R. E.
- Hino, M.
- Hoedl, S.
- Hogan, E.
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Ito, T. M.
- Kawai, T.
- Kirch, K.
- Lamoreaux, S. K.
- Liu, C.-Y.
- Makela, M.
- Marek, L. J.
- Martin, J.W.
- Mortensen, N.
- Pichlmaier, A.
- Saunders, A.
- Seestrom, S. J.
- Smith, D.
- Teasdale, W.
- Tipton, B.
- Utsuro, M.
- Young, A. R.
- Yuan, J.
Abstract
We present the first measurements of the survival time of ultracold neutrons (UCNs) in solid deuterium (SD2). This critical parameter provides a fundamental limitation to the effectiveness of superthermal UCN sources that utilize solid ortho-deuterium as the source material. These measurements are performed utilizing a SD2 source coupled to a spallation source of neutrons, providing a demonstration of UCN production in this geometry and permitting systematic studies of the influence of thermal up-scatter and contamination with para-deuterium on the UCN survival time.
Additional Information
©2002 The American Physical Society. Received 26 September 2001; revised 3 September 2002; published 18 December 2002. We acknowledge the LANSCE operations staff for delivering beam in the new modes needed for this experiment and Warren Pierce for his excellent support. We also acknowledge fruitful conversations with R. Golub and with A. Serebrov. This work has been supported by the DOE LDRD program and by the NSF 9420470, 9600202, 9807133, 0071856.Files
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Additional details
- Eprint ID
- 5861
- Resolver ID
- CaltechAUTHORS:MORprl02b
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2006-11-06Created from EPrint's datestamp field
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