Zobrazeno 1 - 10
of 16
pro vyhledávání: '"David M. Stupin"'
Autor:
Sarah M. White, Anthony W. Davis, Matthew J. Sheats, Martin H. Jones, Karl H. Mueller, Todd J. Kauppila, Thomas N. Claytor, Scott Watson, David A. Fry, David M. Stupin, Jill Hefele, Deborah A Summa
Publikováno v:
SPIE Proceedings.
An overview of the radiographic capabilities with emphasis on electronic image detection and processing at the Los Alamos National Laboratory is presented. Fixed facilities and portable x-ray sources and imaging systems make up the Los Alamos capabil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::237e4ccb3f4262202e5e2d1e01460a8d
https://doi.org/10.1117/12.363672
https://doi.org/10.1117/12.363672
Autor:
Thomas E. McDonald, W. L. Sievers, Matthew J. Sheats, M. J. Schwab, David M. Stupin, E. H. Farnum, Thomas N. Claytor, Deborah A Summa
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461371700
The use of the EG&G-Heimann RTM 128 [1] or dpiX FS20 [2] amorphous silicon (a-Si) detector array for thermal neutron radiography/computed tomography has proven to be a quick and efficient means of producing high quality digital radiographic images. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bcbe220db4ba23570dd154119c78184
https://doi.org/10.1007/978-1-4615-4791-4_265
https://doi.org/10.1007/978-1-4615-4791-4_265
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461371700
We developed a straightforward way to transform x-ray computed tomography (CT) data into an engineering model in a Computer Aided Engineering (CAE) software package. Engineers use such reverse engineering techniques to compare the component “as-is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d541f710f58a50c886c9aa6c6330bf4
https://doi.org/10.1007/978-1-4615-4791-4_126
https://doi.org/10.1007/978-1-4615-4791-4_126
Autor:
David M. Stupin, Thomas A. Kelley
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461374367
In support of stockpile stewardship and other important nondestructive test (NDT) applications, we seek improved methods for rapid evaluation of materials to detect degradation, warping, and shrinkage. Typically, such tests involve manual measurement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94ff609d851792a4c626b5d81a306c67
https://doi.org/10.1007/978-1-4615-5339-7_47
https://doi.org/10.1007/978-1-4615-5339-7_47
Autor:
David M. Stupin, Matthew J. Sheats
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461374367
In support of stockpile stewardship and other important missions, Los Alamos is continually looking for fast and effective ways of inspecting and evaluating industrial parts. Thus, Los Alamos is continually striving to improve our radiography and com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4851665af3cb795621c78e39c8503401
https://doi.org/10.1007/978-1-4615-5339-7_50
https://doi.org/10.1007/978-1-4615-5339-7_50
Autor:
David M. Stupin, K.W. Dolan, R.W. Poland, Boyd Howard, Karl H. Mueller, Dale Alicia Viskoe, Gerald Stoker, Daniel J. Schneberk, Kyle R. Thompson
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461358190
As a result of an arms reduction treaty between the United States and the Russian Federation, both countries will each be storing over 40,000 containers of plutonium. To help detect any deterioration of the containers and prevent leakage, we are desi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aa2894da4f9525c02fcf12c2dbe5214
https://doi.org/10.1007/978-1-4615-1987-4_40
https://doi.org/10.1007/978-1-4615-1987-4_40
Autor:
David M. Stupin
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 3:1266-1268
A gauge measures areal density variations as small as 0.1% in low density plastic foams and other materials. It has a spatial resolution of 0.5 mm. This system is safe, portable, easy to use, and is readily automated. The 6 keV x-ray flux from a /sup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a97b6ea2f08a38e73bcf93564d390d04
https://doi.org/10.1116/1.573080
https://doi.org/10.1116/1.573080
Publikováno v:
Review of Scientific Instruments. 56:2173-2175
We present measurements of the performance of a Pockels readout optical modulator (PROM) x‐ray imaging detector using a 30‐kV constant potential bremsstrahlung source. A nickel step wedge was used to measure the spatial resolution and noise of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a2c2ccd3211daf2acbc1b36b0359b90
https://doi.org/10.1063/1.1138395
https://doi.org/10.1063/1.1138395
Autor:
David M. Stupin
Low-light-level cameras used with phosphors detect very small contrast differences and very small features in x-ray images. I used (1) a silicon-intensifier-tube television camera coupled by a fiber optic to a phosphor screen and (2) an integrating c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8874dd188c70598dc94842004137333d
https://doi.org/10.1016/b978-0-444-87450-4.50157-0
https://doi.org/10.1016/b978-0-444-87450-4.50157-0
A new contact microradiographic system for analyzing laser fusion targets with two-dimensional modeling and image-analysis techniques is described. This system, which uses a monochromatic x-ray source and Kodak High-Resolution Plate emulsion, is sens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c038e58d5bf73f8c1d7b40758c6570fd
https://doi.org/10.2172/6532450
https://doi.org/10.2172/6532450