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

D. K.T. Wong; M. T. Hassan; J. F. Burdine; T. E. Chupp; S. M. Clayton; C. Cude-Woods; S. A. Currie; T. M. Ito; C. Y. Liu; M. Makela; C. L. Morris; C. M. O'Shaughnessy; A. Reid; N. Sachdeva; F. W. Uhrich

doi:10.1016/j.nima.2023.168105

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

D. K.T. Wong, M. T. Hassan, J. F. Burdine, T. E. Chupp, S. M. Clayton, C. Cude-Woods, S. A. Currie, T. M. Ito, C. Y. Liu, M. Makela, C. L. Morris, C. M. O'Shaughnessy, A. Reid, N. Sachdeva, F. W. Uhrich

Research output: Contribution to journal › Article › peer-review

Abstract

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. 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 δd_n=2×10⁻²⁷ 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.

Original language	English (US)
Article number	168105
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	1050
DOIs	https://doi.org/10.1016/j.nima.2023.168105
State	Published - May 2023
Externally published	Yes

Keywords

Neutron electric dipole moment
Ultracold neutrons

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Online availability

10.1016/j.nima.2023.168105

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Wong, D. K. T., Hassan, M. T., Burdine, J. F., Chupp, T. E., Clayton, S. M., Cude-Woods, C., Currie, S. A., Ito, T. M., Liu, C. Y., Makela, M., Morris, C. L., O'Shaughnessy, C. M., Reid, A., Sachdeva, N., & Uhrich, F. W. (2023). Characterization of the new Ultracold Neutron beamline at the LANL UCN facility. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1050, Article 168105. https://doi.org/10.1016/j.nima.2023.168105

Wong, DKT, Hassan, MT, Burdine, JF, Chupp, TE, Clayton, SM, Cude-Woods, C, Currie, SA, Ito, TM, Liu, CY, Makela, M, Morris, CL, O'Shaughnessy, CM, Reid, A, Sachdeva, N & Uhrich, FW 2023, 'Characterization of the new Ultracold Neutron beamline at the LANL UCN facility', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 1050, 168105. https://doi.org/10.1016/j.nima.2023.168105

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title = "Characterization of the new Ultracold Neutron beamline at the LANL UCN facility",

abstract = "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. 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=2×10−27 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.",

keywords = "Neutron electric dipole moment, Ultracold neutrons",

author = "Wong, {D. K.T.} and Hassan, {M. T.} and Burdine, {J. F.} and Chupp, {T. E.} and Clayton, {S. M.} and C. Cude-Woods and Currie, {S. A.} and Ito, {T. M.} and Liu, {C. Y.} and M. Makela and Morris, {C. L.} and O'Shaughnessy, {C. M.} and A. Reid and N. Sachdeva and Uhrich, {F. W.}",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = may,

doi = "10.1016/j.nima.2023.168105",

language = "English (US)",

volume = "1050",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

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T1 - Characterization of the new Ultracold Neutron beamline at the LANL UCN facility

AU - Wong, D. K.T.

AU - Hassan, M. T.

AU - Burdine, J. F.

AU - Chupp, T. E.

AU - Clayton, S. M.

AU - Cude-Woods, C.

AU - Currie, S. A.

AU - Ito, T. M.

AU - Liu, C. Y.

AU - Makela, M.

AU - Morris, C. L.

AU - O'Shaughnessy, C. M.

AU - Reid, A.

AU - Sachdeva, N.

AU - Uhrich, F. W.

PY - 2023/5

Y1 - 2023/5

N2 - 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. 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=2×10−27 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.

AB - 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. 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=2×10−27 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.

KW - Neutron electric dipole moment

KW - Ultracold neutrons

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JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

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ER -

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

Abstract

Keywords

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