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pro vyhledávání: '"Harold Berger"'
Autor:
Harold Berger
Publikováno v:
Applied Radiation and Isotopes. 61:437-442
A brief history of neutron radiography is presented to set the stage for a discussion of significant neutron radiographic developments and an assessment of future directions for neutron radiography. Specific advances are seen in the use of modern, hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b94a6aa3c07dc6b3b45512127027b014
https://doi.org/10.1016/j.apradiso.2004.03.066
https://doi.org/10.1016/j.apradiso.2004.03.066
Autor:
Harold Berger
Image detection methods for neutron radiography are described and capabilities of the methods in terms of exposure requirements, spatial resolution, and contrast are given. Neutron energy ranges cold, thermal, epithermal, and fast are included, but e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05fb8356c56fe1eb7dc476533fbdd529
https://doi.org/10.1520/stp33910s
https://doi.org/10.1520/stp33910s
Autor:
Harold Berger, William E. Dance
Publikováno v:
AIP Conference Proceedings.
There is interest in non-reactor source, thermal neutron inspection systems for applications in aircraft maintenance, explosive devices, investment-cast turbine blades, etc. Accelerator sources, (d-T), RFQ accelerators and cyclotrons as examples, are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99923d51cf822ab4de020eb05b0e6d16
https://doi.org/10.1063/1.59103
https://doi.org/10.1063/1.59103
Publikováno v:
SPIE Proceedings.
Every year there is an increase in the number of Glass Reinforced Plastic (GRP) composite vessels the Coast Guard inspects. A fast, nondestructive evaluation (NDE) technique is needed to facilitate these inspections. The technique must be suitable fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e41b01c0a028f32af00200cbec9ea31
https://doi.org/10.1117/12.141969
https://doi.org/10.1117/12.141969
Autor:
Harold Berger, Leonard Mordfin
Publikováno v:
Nondestructive Testing Standards: Present and Future
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b5b94cf721275fb9744c3ac7d051b52
https://doi.org/10.1520/stp1151-eb
https://doi.org/10.1520/stp1151-eb
Publikováno v:
SPIE Proceedings.
This report summarizes an investigation of new luminescent glasses for use as x-ray-tolight conversion imaging media for x-ray radiographic applications. Luminescent activators such as T b3+ Eu2+ and Ce3+ were investigated in high density 3 g/cm3) hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2af381bf69861c38e91a5900a1ccf480
https://doi.org/10.1117/12.22521
https://doi.org/10.1117/12.22521
Autor:
David Harold Berger
Publikováno v:
Publications of the Astronomical Society of the Pacific. 116:390-390
Long baseline stellar interferometers with air-filled light paths are limited at visual wavelengths ( mm) by l p 0.4–0.8 longitudinal dispersion—a chromatic path length mismatch caused by light travel through unequal lengths of media with wavelen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bac7eb29b0f1ce6b4f1b9be3c296467
https://doi.org/10.1086/383071
https://doi.org/10.1086/383071
Autor:
Harold Berger
Publikováno v:
Rubber Chemistry and Technology. 54:996-1002
It is recognized that present methods for NDE of tires emphasize x-radiography, ultrasonics, and holographic interferometry. Modifications of these approaches in terms of improved signal processing, image magnification (for x rays), electronic focus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38b8538e6c94038b4bb9ebb1ffdea8f5
https://doi.org/10.5254/1.3535859
https://doi.org/10.5254/1.3535859
Publikováno v:
IEEE Transactions on Nuclear Science. 13:79-83
An image intensifier tube of the vacuum tube type, sensitive to thermal neutrons has been developed and tested. The tube provides a bright visible output signal for an incoming thermal neutron image. Sensitivity, resolution, speed, contrast and relat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::353801a43566d94ebd56e48c78ac39fc
https://doi.org/10.1109/tns.1966.4324064
https://doi.org/10.1109/tns.1966.4324064
Autor:
Harold Berger
Publikováno v:
Journal of Applied Physics. 34:914-918
The high contrast resolving power of several photographic thermal neutron image detection methods has been experimentally determined. For the most part, the comparisons between the different imaging techniques were made after optimizing each techniqu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dfb472c1bf078bf288cd0157b33eef2
https://doi.org/10.1063/1.1729560
https://doi.org/10.1063/1.1729560