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Author: kevin coakley
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1. A Weekly Cycle in Atmospheric Carbon Dioxide
Published: 1/1/2002
Authors: R S Cerveny, Kevin J Coakley
Abstract: We present a new statistic called the Mean Symmetrized Residual (MSR) for detection and quantification of a weekly cycle in measured daily atmospheric carbon dioxide (CO^d2^). At the Mauna Loa Observatory in Hawaii, we conclude that CO^d2^ concentra ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151772

2. A gamma and X-ray dector for cryogenic, high magnetic field applications
Published: 7/13/2012
Authors: Thomas R. Gentile, R L Cooper, R. Alarcon, M J Bales, E J Beise, H Breuer, J. Byrne, T E. Chupp, Kevin J Coakley, Maynard S Dewey, Changbo Fu, Hans P Mumm, Jeffrey S Nico, Brian O'Neill, K. Pulliam, Alan K Thompson, F E. Wietfeldt
Abstract: As part of an experiment to measure the spectrum of photons emitted in beta-decay of the free neu- tron, we developed and operated a detector consisting of 12 bismuth germanate (BGO) crystals coupled to avalanche photodiodes (APDs). The detector wa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911584

3. Adaptive Characterization of Jitter Noise in Sampled High-Speed Signals
Published: 10/1/2003
Authors: Kevin J Coakley, Chih-Ming Wang, Paul D Hale, Tracy S. Clement
Abstract: We estimate the root-mean-square (RMS) value of timing jitter noise in simulated signals similar to measured high-speed sampled signals. The simulated signals are contaminated by additive noise, timing jitter noise, and time shift errors. Before e ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51084

4. Adaptive Use of Prior Information in Inverse Problems: An Application to Neutron Depth Profiling
Published: 3/1/2000
Authors: M Levenson, Kevin J Coakley
Abstract: A flexible class of Bayesian models is proposed to solve linear inverse problems. The models generalize linear regularization methods such as Tikhonov regularization and are motivated by the ideas of the image restoration model of Johnson et al. (19 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151746

5. Alignment of Noisy Signals
Published: 2/1/2001
Authors: Kevin J Coakley, Paul D Hale
Abstract: We study the relative performance of various methods for aligning noisy one dimensional signals. In each method, we estimate the relative shifts of a set of signals which are translated with respect to each other. We simulate signals corrupted by bot ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901379

6. An experiment for the precision measurement of the radiative decay mode of the neutron
Published: 10/5/2009
Authors: R Cooper, Christopher D. Bass, E Beise, H Breuer, J Byrne, T E. Chupp, Kevin J Coakley, Maynard S Dewey, B Fisher, Changbo Fu, Thomas R. Gentile, M. McGonagle, Hans P Mumm, Jeffrey S Nico, Alan K Thompson, F E. Wietfeldt
Abstract: The neutron typically beta decays into a proton, electron, and antineutrino. In some decays, it can be accompanied by a high energy photon. We recently performed the rst observation of the radiative beta decay branch for the free neutron with phot ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842579

7. Analysis of uncertainty in particle mass measurement using an aerosol particle mass analyzer
Published: 9/9/2007
Authors: Kensei Ehara, Hiromu Sakurai, Akira Yabe, Naoko Tajima, Kevin J Coakley
Abstract: The aerosol particle mass analyzer (APM) classifies aerosol particles according to their mass-to-charge ratio (Ehara et al., 1996). Particle mass can be measured by use of the APM in combination with a condensation particle counter. Being a balance m ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150510

8. Calibration of a Stopping Power Model for Silicon Based on Analysis of Neutron Depth Profiling and Secondary Ion Mass Spectrometry Measurements
Published: 6/1/2002
Authors: Kevin J Coakley, Huaiyu H Chen-Mayer, George Paul Lamaze, David S Simons, P E Thompson
Abstract: We measure the boron concentration versus depth profile within a silicon sample with four delta-doped planes by secondary ion mass spectrometry. In a neutron depth profiling (NDP) experiment, we illuminate the sample with a neutron beam. Nuclear re ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151806

9. Chaotic Scattering and Escape Times of Marginally Trapped Ultracold Neutrons
Series: Journal of Research (NIST JRES)
Published: 7/1/2005
Authors: Kevin J Coakley, J M Doyle, S N Dzhosyuk, L Yang, Paul R Huffman
Abstract: We compute classical trajectories of ultracold neutrons (UCNs) in a superconducting Ioffe-type magnetic trap using a symplectic integration method. We find that the computed escape time for a particular set of initial conditions (momentum and positio ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150061

10. Chaotic Scattering and Escape Times of Marginally Trapped Ultracold Neutrons
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: of
Published: 4/1/2004
Authors: Kevin J Coakley, J M Doyle, S N Dzhosyuk, L Yang, Paul R Huffman
Abstract: We compute classical trajectories of Ultracold neutrons (UCNs) in a superconducting Ioffe-type magnetic trap using a symplectic integration method. We find that the computed escape time for a particular set of initial conditions (momentum and posit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150571



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