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You searched on: Author: kevin coakley Sorted by: title

Displaying records 1 to 10 of 66 records.
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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, B. 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. A near-field scanning microwave microscope for characterization of inhomogeneous photovoltaics
Published: 8/10/2012
Authors: Joel C Weber, Kristine A Bertness, John B. Schlager, Norman A Sanford, Atif A. Imtiaz, Thomas M Wallis, Pavel Kabos, Kevin J Coakley, Victor Bright, Lorelle M. Mansfield
Abstract: We present a near field scanning microwave microscope (NSMM) optimized for imaging photovoltaic samples. Our system incorporates a cut Pt-Ir tip inserted into an open ended coaxial cable to form a weak resonator, allowing the microwave reflection S1 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911168

4. A strong loophole-free test of local realism
Published: 12/16/2015
Authors: Lynden Krister Shalm, Evan Meyer-Scott, B. G. Christensen, Peter LaBonne Bierhorst, Michael Alan Wayne, Deny Hamel, Martin J Stevens, Thomas Gerrits, Scott C Glancy, Michael Shane Allman, Kevin J Coakley, Shellee Dawn Dyer, Adriana E Lita, Varun Boehm Verma, Joshua C Bienfang, Alan L Migdall, Yanbao Zhang, William Farr, Francesco Marsili, Matthew D. Shaw, Jeffrey Stern, Carlos Abellan, Waldimar Amaya, Valerio Pruneri, Thomas Jennewein, Morgan Mitchell, P. G. Kwiat, Richard P Mirin, Emanuel H Knill
Abstract: We present a loophole-free violation of local realism using entangled photon pairs. We ensure that all relevant events in our Bell test are spacelike separated by placing the parties far enough apart and by using fast random number generators and hig ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=919674

5. 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

6. 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

7. Adaptive and Robust Statistical Methods for Processing Near-Field Scanning Microwave Microscopy Images
Published: 11/23/2014
Authors: Kevin J Coakley, Samuel Berweger, Atif A. Imtiaz, Thomas M Wallis, Joel C Weber, Pavel Kabos
Abstract: Near-field scanning microwave microscopy offers great potential to facilitate characterization, development and modeling of materials. By acquiring microwave images at multiple frequencies and amplitudes (along with the other modalities) one can stud ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916227

8. 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

9. 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

10. 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



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