174 citations · 1.1k across the 35 of their papers we have counts for
17 papers · 1 filter
High voltage and electrode system for a cryogenic experiment to search for the neutron electric dipole moment
M. A. Blatnik, S. M. Clayton, S. A. Currie +16
The cryogenic approach to the search for the neutron electric dipole moment--performing the experiment in superfluid liquid helium--holds promise for a substantial increase in sens…
Demonstration of Sub-micron UCN Position Resolution using Room-temperature CMOS Sensor
S. Lin, J. K. Baldwin, M. Blatnik +25
High spatial resolution of ultracold neutron (UCN) measurement is of growing interest to UCN experiments such as UCN spectrometers, UCN polarimeters, quantum physics of UCNs, and q…
Characterization of the new Ultracold Neutron beamline at the LANL UCN facility
D. K. -T. Wong, M. T. Hassan, J. F. Burdine +12
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 metho…
A study of DC electrical breakdown in liquid helium through analysis of the empirical breakdown field distributions
N. S. Phan, W. Wei, B. Beaumont +6
We report results from a study on electrical breakdown in liquid helium using near-uniform-field stainless steel electrodes with a stressed area of 0.725 cm. The distribu…
Ultracold Neutron Properties of the Eljen-299-02D deuterated scintillator
Z. Tang, E. B. Watkins, S. M. Clayton +24
In this paper we report studies of the Fermi potential and loss per bounce of ultracold neutron (UCN) on a deuterated scintillator (Eljen-299-02D). These UCN properties of the scin…
Effect of an electric field on liquid helium scintillation produced by fast electrons
N. S. Phan, V. Cianciolo, S. M. Clayton +11
The dependence on applied electric field ( kV/cm) of the scintillation light produced by fast electrons and particles stopped in liquid helium in the temperature range…
A New Cryogenic Apparatus to Search for the Neutron Electric Dipole Moment
M. W. Ahmed, R. Alarcon, A. Aleksandrova +91
A cryogenic apparatus is described that enables a new experiment, nEDM@SNS, with a major improvement in sensitivity compared to the existing limit in the search for a neutron Elect…
A boron-coated CCD camera for direct detection of Ultracold Neutrons (UCN)
K. Kuk, C. Cude-Woods, C. R. Chavez +48
A new boron-coated CCD camera is described for direct detection of ultracold neutrons (UCN) through the capture reactions B (n,0)Li (6%) and B(n,1)$^7…
Monte Carlo Simulations of Trapped Ultracold Neutrons in the UCNτ Experiment
Nathan Callahan, Chen-Yu Liu, Francisco Gonzalez +37
In the UCNτ experiment, ultracold neutrons (UCN) are confined by magnetic fields and the Earth's gravitational field. Field-trapping mitigates the problem of UCN loss on material s…
Performance of the upgraded ultracold neutron source at Los Alamos National Laboratory and its implication for a possible neutron electric dipole moment experiment
T. M. Ito, E. R. Adamek, N. B. Callahan +23
The ultracold neutron (UCN) source at Los Alamos National Laboratory (LANL), which uses solid deuterium as the UCN converter and is driven by accelerator spallation neutrons, has b…
Evaluation of commercial nickel-phosphorus coating for ultracold neutron guides using a pinhole bottling method
R. W. Pattie, E. Adamek, T. Brenner +24
We report on the evaluation of commercial electroless nickel phosphorus (NiP) coatings for ultracold neutron (UCN) transport and storage. The material potential of 50~m thick Ni…
Detection System for Neutron Decay Correlations in the UCNB and Nab experiments
L. J. Broussard, B. A. Zeck, E. R. Adamek +51
We describe a detection system designed for precise measurements of angular correlations in neutron decay. The system is based on thick, large area, highly segmented silicon de…
Position-sensitive detection of ultracold neutrons with an imaging camera and its implications to spectroscopy
Wanchun Wei, L. J. Broussard, M. A. Hoffbauer +29
Position-sensitive detection of ultracold neutrons (UCNs) is demonstrated using an imaging charge-coupled device (CCD) camera. A spatial resolution less than 15 m has been achie…
An apparatus for studying electrical breakdown in liquid helium at 0.4 K and testing electrode materials for the SNS nEDM experiment
T. M. Ito, J. C. Ramsey, W. Yao +14
We have constructed an apparatus to study DC electrical breakdown in liquid helium at temperatures as low as 0.4 K and at pressures between the saturated vapor pressure and 6…
A multilayer surface detector for ultracold neutrons
Zhehui Wang, M. A. Hoffbauer, C. L. Morris +33
A multilayer surface detector for ultracold neutrons (UCNs) is described. The top B layer is exposed to the vacuum chamber and directly captures UCNs. The ZnS:Ag layer benea…
High electric field development for the SNS nEDM Experiment
T. M. Ito, D. H. Beck, S. M. Clayton +9
A new experiment to search for the permanent electric dipole moment of the neutron is being developed for installation at the Spallation Neutron Source at Oak Ridge National Labora…
Storage of ultracold neutrons in the UCN magneto-gravitational trap
D. J. Salvat, E. R. Adamek, D. Barlow +29
The UCN experiment is designed to measure the lifetime of the free neutron by trapping ultracold neutrons (UCN) in a magneto-gravitational trap. An asymmetric bowl-shape…