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Title: A new method for measuring the neutron lifetime using an in situ neutron detector

Abstract

Here, 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. We also used an active detector that can be lowered into the trap to measure the neutron distribution as a function of height and measure the influence of marginally trapped UCN on the neutron lifetime measurement. Additionally, measurements have demonstrated phase-space evolution and its effect on the lifetime measurement.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3];  [2]; ORCiD logo [1];  [4]; ORCiD logo [1]; ORCiD logo [5];  [2];  [6];  [1];  [7];  [8];  [2]; ORCiD logo [1];  [1]; ORCiD logo [1];  [9]; ORCiD logo [1];  [1] more »;  [10]; ORCiD logo [1]; ORCiD logo [1];  [2];  [5]; ORCiD logo [1]; ORCiD logo [1];  [1];  [4];  [1]; ORCiD logo [4];  [11] « less
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Indiana Univ., Bloomington, IN (United States). Dept. of Physics
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. North Carolina State Univ., Raleigh, NC (United States). Triangle Universities Nuclear Lab.
  5. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States). Dept. of Physics
  6. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  7. Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Physics
  8. DePauw Univ., Greencastle, IN (United States). Dept. of Physics
  9. Univ. of Washington, Seattle, WA (United States). Dept. of Physics
  10. Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation)
  11. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); North Carolina State Univ., Raleigh, NC (United States). Triangle Universities Nuclear Lab.
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); National Science Foundation (NSF); USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1361895
Alternate Identifier(s):
OSTI ID: 1361319; OSTI ID: 1363969; OSTI ID: 1364545
Report Number(s):
LA-UR-16-27352
Journal ID: ISSN 0034-6748; KB0401022; ERKBP16
Grant/Contract Number:
AC05-00OR22725; FG02-97ER41042; AC52-06NA25396
Resource Type:
Journal Article: Published Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 88; Journal Issue: 5; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Atomic and Nuclear Physics; Neutron lifetime ultra-cold neutrons magnetic bottle

Citation Formats

Morris, Christopher L., Adamek, Evan Robert, Broussard, Leah Jacklyn, Callahan, Nathan Brannan, Clayton, Steven M., Cude-Woods, Chris B., Currie, Scott Allister, Ding, Xinjian, Fox, W., Hickerson, Kevin Peter, Hoffbauer, M. A., Holley, Adam Tarte, Komives, Alexander Karl, Liu, Chen-Yu, Makela, Mark F., Pattie, Robert Wayne, Ramsey, John Clinton, Salvat, D. J., Saunders, Alexander, Seestrom, Susan Joyce, Sharapov, E. I., Sjue, Sky K., Tang, Zhaowen, Vanderwerp, John, Vogelaar, B., Walstrom, Peter Lowell, Wang, Zhehui, Wei, Wanchun, Wexler, J. W., Womack, Todd Lane, Young, Albert Raymond, and Zeck, Bryan Alexander. A new method for measuring the neutron lifetime using an in situ neutron detector. United States: N. p., 2017. Web. doi:10.1063/1.4983578.
Morris, Christopher L., Adamek, Evan Robert, Broussard, Leah Jacklyn, Callahan, Nathan Brannan, Clayton, Steven M., Cude-Woods, Chris B., Currie, Scott Allister, Ding, Xinjian, Fox, W., Hickerson, Kevin Peter, Hoffbauer, M. A., Holley, Adam Tarte, Komives, Alexander Karl, Liu, Chen-Yu, Makela, Mark F., Pattie, Robert Wayne, Ramsey, John Clinton, Salvat, D. J., Saunders, Alexander, Seestrom, Susan Joyce, Sharapov, E. I., Sjue, Sky K., Tang, Zhaowen, Vanderwerp, John, Vogelaar, B., Walstrom, Peter Lowell, Wang, Zhehui, Wei, Wanchun, Wexler, J. W., Womack, Todd Lane, Young, Albert Raymond, & Zeck, Bryan Alexander. A new method for measuring the neutron lifetime using an in situ neutron detector. United States. doi:10.1063/1.4983578.
Morris, Christopher L., Adamek, Evan Robert, Broussard, Leah Jacklyn, Callahan, Nathan Brannan, Clayton, Steven M., Cude-Woods, Chris B., Currie, Scott Allister, Ding, Xinjian, Fox, W., Hickerson, Kevin Peter, Hoffbauer, M. A., Holley, Adam Tarte, Komives, Alexander Karl, Liu, Chen-Yu, Makela, Mark F., Pattie, Robert Wayne, Ramsey, John Clinton, Salvat, D. J., Saunders, Alexander, Seestrom, Susan Joyce, Sharapov, E. I., Sjue, Sky K., Tang, Zhaowen, Vanderwerp, John, Vogelaar, B., Walstrom, Peter Lowell, Wang, Zhehui, Wei, Wanchun, Wexler, J. W., Womack, Todd Lane, Young, Albert Raymond, and Zeck, Bryan Alexander. Tue . "A new method for measuring the neutron lifetime using an in situ neutron detector". United States. doi:10.1063/1.4983578.
@article{osti_1361895,
title = {A new method for measuring the neutron lifetime using an in situ neutron detector},
author = {Morris, Christopher L. and Adamek, Evan Robert and Broussard, Leah Jacklyn and Callahan, Nathan Brannan and Clayton, Steven M. and Cude-Woods, Chris B. and Currie, Scott Allister and Ding, Xinjian and Fox, W. and Hickerson, Kevin Peter and Hoffbauer, M. A. and Holley, Adam Tarte and Komives, Alexander Karl and Liu, Chen-Yu and Makela, Mark F. and Pattie, Robert Wayne and Ramsey, John Clinton and Salvat, D. J. and Saunders, Alexander and Seestrom, Susan Joyce and Sharapov, E. I. and Sjue, Sky K. and Tang, Zhaowen and Vanderwerp, John and Vogelaar, B. and Walstrom, Peter Lowell and Wang, Zhehui and Wei, Wanchun and Wexler, J. W. and Womack, Todd Lane and Young, Albert Raymond and Zeck, Bryan Alexander},
abstractNote = {Here, 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. We also used an active detector that can be lowered into the trap to measure the neutron distribution as a function of height and measure the influence of marginally trapped UCN on the neutron lifetime measurement. Additionally, measurements have demonstrated phase-space evolution and its effect on the lifetime measurement.},
doi = {10.1063/1.4983578},
journal = {Review of Scientific Instruments},
number = 5,
volume = 88,
place = {United States},
year = {Tue May 30 00:00:00 EDT 2017},
month = {Tue May 30 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1063/1.4983578

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Cited by: 2works
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