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A new method for measuring the neutron lifetime using an in situ neutron detector.
Morris, C L; Adamek, E R; Broussard, L J; Callahan, N B; Clayton, S M; Cude-Woods, C; Currie, S A; Ding, X; Fox, W; Hickerson, K P; Hoffbauer, M A; Holley, A T; Komives, A; Liu, C-Y; Makela, M; Pattie, R W; Ramsey, J; Salvat, D J; Saunders, A; Seestrom, S J; Sharapov, E I; Sjue, S K; Tang, Z; Vanderwerp, J; Vogelaar, B; Walstrom, P L; Wang, Z; Wei, Wanchun; Wexler, J W; Womack, T L; Young, A R; Zeck, B A.
Afiliação
  • Morris CL; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Adamek ER; Department of Physics, Indiana University, Bloomington, Indiana 47408, USA.
  • Broussard LJ; Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Callahan NB; Department of Physics, Indiana University, Bloomington, Indiana 47408, USA.
  • Clayton SM; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Cude-Woods C; Triangle Universities Nuclear Laboratory, North Carolina State University, Raleigh, North Carolina 27695, USA.
  • Currie SA; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Ding X; Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA.
  • Fox W; Department of Physics, Indiana University, Bloomington, Indiana 47408, USA.
  • Hickerson KP; California Institute of Technology, Pasadena, California 91125, USA.
  • Hoffbauer MA; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Holley AT; Department of Physics, Tennessee Tech University, Cookeville, Tennessee 38505, USA.
  • Komives A; Department of Physics, DePauw University, Greencastle Indiana 46135-0037, USA.
  • Liu CY; Department of Physics, Indiana University, Bloomington, Indiana 47408, USA.
  • Makela M; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Pattie RW; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Ramsey J; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Salvat DJ; Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA.
  • Saunders A; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Seestrom SJ; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Sharapov EI; Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia.
  • Sjue SK; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Tang Z; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Vanderwerp J; Department of Physics, Indiana University, Bloomington, Indiana 47408, USA.
  • Vogelaar B; Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA.
  • Walstrom PL; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Wang Z; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Wei W; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Wexler JW; Triangle Universities Nuclear Laboratory, North Carolina State University, Raleigh, North Carolina 27695, USA.
  • Womack TL; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Young AR; Triangle Universities Nuclear Laboratory, North Carolina State University, Raleigh, North Carolina 27695, USA.
  • Zeck BA; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Rev Sci Instrum ; 88(5): 053508, 2017 May.
Article em En | MEDLINE | ID: mdl-28571423
ABSTRACT
In this paper, we describe a new method for measuring surviving neutrons in neutron lifetime measurements using bottled ultracold neutrons (UCN), which provides better characterization of systematic uncertainties and enables higher precision than previous measurement techniques. An active detector that can be lowered into the trap has been used to measure the neutron distribution as a function of height and measure the influence of marginally trapped UCN on the neutron lifetime measurement. In addition, measurements have demonstrated phase-space evolution and its effect on the lifetime measurement.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2017 Tipo de documento: Article