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Characterization of the new Ultracold Neutron beamline at the LANL UCN facility

Journal Article · · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
 [1];  [2];  [2];  [3];  [2];  [4];  [2];  [2];  [5];  [2];  [2];  [2];  [5];  [6];  [2]
  1. Indiana Univ., Bloomington, IN (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  3. Univ. of Michigan, Ann Arbor, MI (United States)
  4. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); North Carolina State University, Raleigh, NC (United States)
  5. Indiana Univ., Bloomington, IN (United States)
  6. Univ. of Michigan, Ann Arbor, MI (United States); Northwestern Univ., Evanston, IL (United States)
+ Show Author Affiliations
The neutron electric dipole moment (nEDM) experiment that is currently being developed at Los Alamos National Laboratory (LANL) will use ultracold neutrons (UCN) and Ramsey’s method of separated oscillatory fields to search for a nEDM. Here, in this paper, we present measurements of UCN storage and UCN transport performed during the commissioning of a new beamline at the LANL UCN source and demonstrate a sufficient number of stored polarized UCN to achieve a statistical uncertainty of δdn = 2 x 10-27 e cm in 5 calendar years of running. We also present an analytical model describing data that provides a simple parameterization of the input UCN energy spectrum on the new beamline.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Office of Workforce Development for Teachers & Scientists (WDTS)
Grant/Contract Number:
89233218CNA000001; SC0014664
OSTI ID:
2446673
Report Number(s):
LA-UR--22-28534
Journal Information:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Vol. 1050; ISSN 0168-9002
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Neutron electric dipole moment
Ultracold neutrons