Search Results - "Bowman, J.D."
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Nab: Measurement principles, apparatus and uncertainties
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-12-2009)“…The Nab collaboration will perform a precise measurement of a, the electron–neutrino correlation parameter, and b, the Fierz interference term in neutron beta…”
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Parity violation in compound nuclei: experimental methods and recent results
Published in Physics reports (01-11-2001)“…The TRIPLE Collaboration studies of space-parity symmetry in the compound nucleus show numerous examples of parity violation in Br, Rh, Pd, Ag, Cd, In, Sn, Sb,…”
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Monte Carlo calculation of the average neutron depolarization for the NPDGamma experiment
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-10-2019)“…The NPDGamma experiment measures the asymmetry in γ-ray emission in the capture of polarized neutrons on liquid parahydrogen. The beam polarization is measured…”
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On the Measurement of the Neutron Lifetime Using Ultracold Neutrons in a Vacuum Quadrupole Trap
Published in Journal of research of the National Institute of Standards and Technology (01-07-2005)“…We present a conceptual design for an experiment to measure the neutron lifetime (~886 s) with an accuracy of 10(-4). The lifetime will be measured by…”
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Amyotrophic lateral sclerosis and occupational exposure to electromagnetic fields
Published in Bioelectromagnetics (1997)“…In an hypothesis‐generating case‐control study of amyotrophic lateral sclerosis, lifetime occupational histories were obtained. The patients (n = 28) were…”
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Precision Neutron Polarimetry for Neutron Beta Decay
Published in Journal of research of the National Institute of Standards and Technology (01-05-2005)“…The abBA collaboration is developing a new type of field-expansion spectrometer for a measurement of the three correlation coefficients a, A, and B and the…”
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Measurement of parity-nonconserving rotation of neutron spin in the 0.734-eV p-wave resonance of 139La
Published in Physics letters. B (01-05-2002)“…The parity nonconserving spin rotation of neutrons in the 0.734-eV p-wave resonance of 139La was measured with the neutron transmission method. Two optically…”
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New Pulsed Cold Neutron Beam Line for Fundamental Nuclear Physics at LANSCE
Published in Journal of research of the National Institute of Standards and Technology (01-05-2005)“…The NPDGamma collaboration has completed the construction of a pulsed cold neutron beam line on flight path12 at the Los Alamos Neutron Science Center…”
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Detector Development for the abBA Experiment
Published in Journal of research of the National Institute of Standards and Technology (01-07-2005)“…We have developed a new type of field-expansion spectrometer to measure the neutron beta decay correlations (a, b, B, and A). A precision measurement of these…”
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Monte Carlo calculation and verification of the geometrical factors for the NPDGamma experiment
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-09-2018)“…The NPDGamma experiment measures the parity-violating asymmetry in γ-ray emission in the capture of polarized neutrons on liquid parahydrogen. The sensitivity…”
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The Qweak experimental apparatus
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-05-2015)“…The Jefferson Lab Qweak experiment determined the weak charge of the proton by measuring the parity-violating elastic scattering asymmetry of longitudinally…”
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A magneto-gravitational trap for absolute measurement of the ultra-cold neutron lifetime
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-02-2009)“…We present a conceptual design for an experiment to measure the neutron lifetime with a relative accuracy of 10 − 4 . The measurement will be performed by…”
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Detection system for neutron β decay correlations in the UCNB and Nab experiments
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-03-2017)“…We describe a detection system designed for precise measurements of angular correlations in neutron β decay. The system is based on thick, large area, highly…”
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Hypothesis: the risk of childhood leukemia is related to combinations of power-frequency and static magnetic fields
Published in Bioelectromagnetics (1995)“…We present a hypothesis that the risk of childhood leukemia is related to exposure to specific combinations of static and extremely-low-frequency (ELF)…”
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Measurement of the absolute neutron beam polarization from a supermirror polarizer and the absolute efficiency of a neutron spin rotator for the NPDGamma experiment using a polarized 3He neutron spin-filter
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-07-2018)“…Accurately measuring the neutron beam polarization of a high flux, large area neutron beam is necessary for many neutron physics experiments. The Fundamental…”
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A Real Time Processing system for big data in astronomy: Applications to HERA
Published in Astronomy and computing (01-07-2021)“…As current- and next-generation astronomical instruments come online, they will generate an unprecedented deluge of data. Analyzing these data in real time…”
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Weight-Loss Outcomes: A Systematic Review and Meta-Analysis of Weight-Loss Clinical Trials with a Minimum 1-Year Follow-Up
Published in Journal of the American Dietetic Association (01-10-2007)“…Abstract Objective To assist health professionals who counsel patients with overweight and obesity, a systematic review was undertaken to determine types of…”
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A liquid parahydrogen target for the measurement of a parity-violating gamma asymmetry in n ⇒ + p → d + γ
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (2010)“…A 16 l liquid parahydrogen target has been developed for a measurement of the parity-violating γ -asymmetry in the capture of polarized cold neutrons on…”
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Determination of the parahydrogen fraction in a liquid hydrogen target using energy-dependent slow neutron transmission
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-12-2011)“…The NPDGamma collaboration is performing a measurement of the very small parity-violating asymmetry in the angular distribution of the 2.2MeV γ-rays from the…”
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Parity violation in the compound nucleus
Published in Reviews of modern physics (01-01-1999)Get full text
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