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Author: scott wight

Displaying records 11 to 20 of 35 records.
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11. Bevel Depth Profiling SIMS for Analysis of Layer Structures
Published: 9/1/2003
Authors: John G Gillen, Scott A Wight, P Chi, Albert J. Fahey, Jennifer R Verkouteren, Eric S Windsor, D. B. Fenner
Abstract: We are evaluating the use of bevel depth profiling Secondary Ion Mass Spectrometry (SIMS) for the characterization of layered semiconductor materials. In this procedure, a sub-degree angle bevel is cut into the analytical sample with an oxygen or ce ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831302

12. Optimizing Thermal-Optical Methods for Measuring Atmospheric Elemental (Black) Carbon: A Response Surface Study
Published: 9/1/2003
Authors: Joseph M Conny, D Klinedinst, Scott A Wight, J L Paulsen
Abstract: The chemical, physical, and morphological complexity of atmospheric aerosol black carbon (BC) presents major problems in measurement accuracy. Methods based on thermal-optical analysis (TOA) are widely used for ambient air samples because no prior kn ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831274

13. Copper Oxide Precipitates in NBS Standard Reference Material 482
Series: Journal of Research (NIST JRES)
Published: 12/1/2002
Authors: Eric S Windsor, R Carlton, John G Gillen, Scott A Wight, David S. Bright
Abstract: Copper oxide has been detected in the copper containing alloys of Standard Reference Material (SRM) 482. This occurrence is significant because it represents heterogeneity within a standard reference material that was certified to be homogeneous on ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831277

14. Preliminary Report on the Biocompatibility of a Moldable, Resorbable, Composite Bone Graft Consisting of Calcium Phosphate Cement and Poly (Lactide-Co-Glycolide) Microspheres
Published: 5/1/2002
Authors: Carl George Simon Jr, C A Khatri, Scott A Wight, Francis W Wang
Abstract: We have assessed the biocompatibility of a new composite bone graft consisting of calcium phosphate cement (CPC) and poly(lactide-co-glycolide) (PLGA) microspheres (175-350 ?m) using cell culture techniques. CPC powder is mixed with PLGA microsphere ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851741

15. Experimental Data and Model Simulations of Beam Spread in the Environmental Scanning Electron Microscope
Published: 10/1/2001
Author: Scott A Wight
Abstract: This work describes the comparison of experimental measurements of electron beam spread in the environmental scanning electron microscope with model predictions. Beam spreading is the result of primary electrons being scattered out of the focused be ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831206

16. SRM 482 Revisited After 30 Years
Published: 8/1/2001
Authors: Eric S Windsor, R Carlton, Scott A Wight, C Lyman
Abstract: The National Institute of Standards and Technology's (NIST) Standard Reference Material (SRM) 482 was issued by The National Bureau of Standards (NBS) in 1969 and has been continuously available to the public for over 30 years [1]. The standard ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831217

17. Phosphor Imaging Plate Measurement of Electron Scattering in the Environmental Scanning Electron Microscope
Published: 8/1/2000
Authors: Scott A Wight, Cynthia J Zeissler
Abstract: Phosphor Imaging Plate Technology is applied to electron beam scattering in the Environmental Scanning Electron Microscope. The plate is exposed to primary and scattered electrons which stimulate the phosphor grains to an excited state. The intensi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831179

18. Characterization of the Electron Beam Specimen Interaction in the ESEM with SIM Imaging
Published: 7/1/2000
Authors: Scott A Wight, John G Gillen, G B. Saupe
Abstract: A Secondary Ion Mass Spectrometry (SIMS) study has been undertaken to examine surfaces and films modified in the environmental scanning electron microscope (ESEM). Examination of the modifications induced by ESEM electrons and ions lead to a better ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830163

19. Direct Measurement of Electron Beam Scattering in the Environmental Scanning Electron Microscope Using Phosphor Imaging Plates
Published: 5/1/2000
Authors: Scott A Wight, Cynthia J Zeissler
Abstract: Phosphor imaging plate technology has made it possible to directly image the distribution of primary beam electrons and scattered electrons in the environmental scanning electron microscope. The phosphor plate is exposed under electron scattering co ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831140

20. What Do We Need to Look Out for When Doing Energy Dispersive X-Ray Analysis in the Environmental Scanning Electron Microscope?
Published: 8/1/1999
Author: Scott A Wight
Abstract: Electron scattering in the environmental scanning electron microscope may contribute x-ray contamination to quantitative analysis. A series of experiments explores at what range and conditions the analyst in the real world needs to be concerned about ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831119



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