Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Patrick Lj Valdez"'
Autor:
Azaree T. Lintereur, Richard T. Kouzes, Sean C. Stave, Spencer Behling, Christian Cowles, Edward R. Siciliano, Phoenix Baldez, Sean M. Robinson, Patrick Lj Valdez, Micah Folsom, Vladislav Kukharev
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 887:59-63
The feasibility of a full-scale lithium fluoride zinc sulfide (LiF/ZnS) based neutron multiplicity counter has been demonstrated. The counter was constructed of modular neutron detecting stacks that each contain five sheets of LiF/ZnS interleaved bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1ce2995369a0fa20e05115fc6434119
https://doi.org/10.1016/j.nima.2018.01.015
https://doi.org/10.1016/j.nima.2018.01.015
Autor:
Cynthia L. Warner, Gerald J. Posakony, Cindy J. Bruckner-Lea, Melissa M. Matzke, Brian P. Dockendorff, Patrick Lj Valdez, Nancy B. Valentine, Tim M. Straub, Catherine O. Valdez, Stanley L. Owsley, Richard M. Ozanich, Leonard J. Bond, Jay W. Grate
Publikováno v:
JALA: Journal of the Association for Laboratory Automation. 14:277-284
An automated, flow-through ultrasonic lysis module that is capable of disrupting bacterial spores to increase the DNA available for biodetection is described. The system uses a flow-through chamber that allows for direct injection of the sample witho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f24a11a78af93afe087d9ca23b1247c1
https://doi.org/10.1016/j.jala.2009.04.007
https://doi.org/10.1016/j.jala.2009.04.007
Autor:
Patrick Lj Valdez, Bruce E. Bernacki, Sean M. Robinson, Lynn Wood, Azaree T. Lintereur, Mary Bliss, Edward R. Siciliano, Richard T. Kouzes, Christian Cowles, Sean C. Stave
Publikováno v:
2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).
Neutron multiplicity counters are used in safeguards to provide rapid assay of samples which contain an unknown amount of plutonium in a potentially unknown configuration. Alternatives to the use of 3He for the detection of thermal neutrons are being
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77be3ac224a3b44efabd070c8ba0908f
https://doi.org/10.1109/nssmic.2014.7431221
https://doi.org/10.1109/nssmic.2014.7431221
Autor:
Patrick Lj Valdez, David M. Sheen, Bruce E. Bernacki, James F. Kelly, Jonathan R. Tedeschi, Wayne M. Lechelt, Douglas L. McMakin, Thomas E. Hall
Publikováno v:
SPIE Proceedings.
We present a novel architecture based upon a Dicke-switched heterodyne radiometer architecture employing two identical input sections consisting of horn and orthomode transducer to detect the difference between the horizontal ( H) and vertical (V) po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b84955bb36e8d956cefc65d955f7f73
https://doi.org/10.1117/12.2015193
https://doi.org/10.1117/12.2015193
Autor:
David M. Sheen, Jonathan R. Tedeschi, Patrick Lj Valdez, James F. Kelly, Thomas E. Hall, Douglas L. McMakin, Brian K. Hatchell, Bruce E. Bernacki
Publikováno v:
SPIE Proceedings.
As millimeter-wave arrays become available, off-axis imaging performance of the fore optics increases in importance due to the relatively large physical extent of the arrays. Typically, simple optical telescope designs are adapted to millimeter-wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51d27149f46cf65bd891b43de14d7f45
https://doi.org/10.1117/12.917773
https://doi.org/10.1117/12.917773
Autor:
James F. Kelly, Brian K. Hatchell, Douglas L. McMakin, Albert Mendoza, Patrick Lj Valdez, Robert V. Harris, Bruce E. Bernacki, Thomas E. Hall, Jonathan R. Tedeschi, David M. Sheen
Publikováno v:
SPIE Proceedings.
We present the theory, design, and experimental results obtained from a scanning passive W-band fully polarimetric imager. Passive millimeter-wave imaging offers persistent day/nighttime imaging and the ability to penetrate dust, clouds and other obs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f975b9667e2c8d701358dad01effece5
https://doi.org/10.1117/12.909756
https://doi.org/10.1117/12.909756
Autor:
Patrick Lj Valdez, Douglas L. McMakin, Wayne M. Lechelt, Jonathan R. Tedeschi, Albert Mendoza, James F. Kelly, Thomas E. Hall, Robert V. Harris, Ronald H. Severtsen, David M. Sheen, Brian K. Hatchell, Bruce E. Bernacki, Clint D. Knopik
This report describes research and development efforts toward a novel passive millimeter-wave (mm-wave) electromagnetic imaging device for broad-area search. It addresses the technical challenge of detecting anomalies that occupy a small fraction of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96c852ceff1b4f7593b96406db88979d
https://doi.org/10.2172/1033463
https://doi.org/10.2172/1033463
Autor:
Brian K. Hatchell, Jonathan R. Tedeschi, David M. Sheen, Patrick Lj Valdez, Thomas E. Hall, Douglas L. McMakin, James F. Kelly, Bruce E. Bernacki
Publikováno v:
SPIE Proceedings.
We present experimental results obtained from a scanning passive W-band fully polarimetric imager. Passive millimeter wave imaging offers persistent day/nighttime imaging and the ability to penetrate dust, clouds and other obscurants, as well as thin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d979862130ab3f722c2bc2f607816fc8
https://doi.org/10.1117/12.883545
https://doi.org/10.1117/12.883545
Autor:
Brian K. Hatchell, Patrick Lj Valdez, David M. Sheen, Douglas L. McMakin, Ronald H. Severtsen, Thomas E. Hall
Publikováno v:
SPIE Proceedings.
The sub-millimeter (sub-mm) wave frequency band from 300 - 1000 GHz is currently being developed for standoff concealed weapon detection imaging applications. This frequency band is of interest due to the unique combination of high resolution and clo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af332b094394302dc6fd9409f2d73b28
https://doi.org/10.1117/12.852788
https://doi.org/10.1117/12.852788
The Pacific Northwest National Laboratory (PNNL) was tasked by Washington River Protection Solutions, LLC (WRPS) to provide information and lessons learned relating to the design, development and deployment of remote systems, particularly remote arm/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6873ce7b45160a007deef9392cd3e570
https://doi.org/10.2172/964618
https://doi.org/10.2172/964618