Zobrazeno 1 - 10
of 35
pro vyhledávání: '"John S. Hartman"'
Autor:
Lindsay C. Todd, John E. Smart, William A. Sliger, Melody A. Maynard, Walter K. Hensley, John S. Hartman, David V. Jordan, Ronald L. Brodzinski, Robert C. Runkle
Publikováno v:
Sensors, Vol 5, Iss 1, Pp 51-60 (2005)
Groundwater contamination from 90Sr is an environmental challenge posed topresent and former nuclear weapons related sites. Traditional methods of extractinggroundwater samples and performing laboratory analyses are expensive, time-consumingand induc
Externí odkaz:
https://doaj.org/article/6a61c19d1bf74a57afe0f57127b34eea
Autor:
John S. Hartman, David V. Jordan, Lindsay C. Todd, Eric D. Ashbaker, Kathleen R. McCormick, William A. Sliger, Matthew Douglas, Ronald L. Brodzinski, Robert C. Runkle
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 277:235-239
Migration of groundwater contamination from beneath the Hanford Site into the Columbia River creates a need for in situ 90Sr monitoring. The prototype monitor discussed here was designed for deployment downwell and provides near-real-time determinati
Autor:
G Anderson, Jay W. Grate, Matthew J. O'Hara, Michael A. Knopf, John S. Hartman, Oleg B. Egorov
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 264:495-500
Direct determination of 99Tc in groundwater using a sensor device represents a substantial challenge due to the short range of beta-particles, the presence of radiological interferences, and low-level detection requirements. This paper describes a ra
Autor:
John S. Hartman, William A. Sliger, David V. Jordan, Walter K. Hensley, John E. Smart, Robert C. Runkle, Lindsay C. Todd, Ronald L. Brodzinski, Melody A. Maynard
Publikováno v:
Sensors (Basel, Switzerland)
Sensors, Vol 5, Iss 1, Pp 51-60 (2005)
Sensors
Volume 5
Issue 1
Pages 51-60
Sensors, Vol 5, Iss 1, Pp 51-60 (2005)
Sensors
Volume 5
Issue 1
Pages 51-60
Groundwater contamination from 90 Sr is an environmental challenge posed to present and former nuclear weapons related sites. Traditional methods of extracting groundwater samples and performing laboratory analyses are expensive, time-consuming and i
Autor:
John S. Hartman
Publikováno v:
Applied optics. 20(23)
The optical effects of radiation damage to metal mirrors have been examined using copper-ion beams incident on copper mirrors. Incident ion energies of 2, 5, and 8 MeV were used and dose levels were examined up to 4 x 10(16) ions/cm(2). Both crystall
Publikováno v:
Applied optics. 20(15)
Alternate measurement and data analysis procedures are discussed and compared for the application of reflective Nomarski differential interference contrast microscopy for the determination of surface slopes. The discussion includes the interpretation
Publikováno v:
Applied optics. 19(17)
The application of reflective Nomarski differential interference contrast microscopy for the determination of quantitative sample topography data is presented. The discussion includes a review of key theoretical results presented previously plus the
General discussion of effluents from nuclear material reprocessing operations and the opportunity to detect important effluents in the near-field domain.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f266eec04d8958a608d62f9dc8d21886
https://doi.org/10.2172/921584
https://doi.org/10.2172/921584
Publikováno v:
2007 IEEE Sensors.
Preconcentrating minicolumn sensors represent an effective approach to achieve a substantial preconcentration factor within a sensing device, enabling very low detection limits as is required for environmental sensing. A selectively sorbent phase col
Although remote sensing methods offer advantages for monitoring important illicit process activities, remote and stand-off technologies cannot successfully detect all important processes with the sensitivity and certainty that is desired. The main sc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b1a62694be375c14ae07d4269b7a1ab
https://doi.org/10.2172/919721
https://doi.org/10.2172/919721