skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: PHASE LAG INFRA-RED THERMAL EXAMINATION (PLITE) A NEW NON-DESTRUCTIVE TEST PROCESS.

Abstract

Abstract not provided.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1148123
Report Number(s):
SAND2007-4053C
522579
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the Symposium on Fusion Technology held June 18-21, 2007 in Albuquerque, NM.
Country of Publication:
United States
Language:
English

Citation Formats

McDonald, Jimmie M., Lutz, Thomas J., Ulrickson, Michael A., Martin, Tina T., Youchison, Dennis L, and Nygren, Richard E. PHASE LAG INFRA-RED THERMAL EXAMINATION (PLITE) A NEW NON-DESTRUCTIVE TEST PROCESS.. United States: N. p., 2007. Web.
McDonald, Jimmie M., Lutz, Thomas J., Ulrickson, Michael A., Martin, Tina T., Youchison, Dennis L, & Nygren, Richard E. PHASE LAG INFRA-RED THERMAL EXAMINATION (PLITE) A NEW NON-DESTRUCTIVE TEST PROCESS.. United States.
McDonald, Jimmie M., Lutz, Thomas J., Ulrickson, Michael A., Martin, Tina T., Youchison, Dennis L, and Nygren, Richard E. Fri . "PHASE LAG INFRA-RED THERMAL EXAMINATION (PLITE) A NEW NON-DESTRUCTIVE TEST PROCESS.". United States. doi:. https://www.osti.gov/servlets/purl/1148123.
@article{osti_1148123,
title = {PHASE LAG INFRA-RED THERMAL EXAMINATION (PLITE) A NEW NON-DESTRUCTIVE TEST PROCESS.},
author = {McDonald, Jimmie M. and Lutz, Thomas J. and Ulrickson, Michael A. and Martin, Tina T. and Youchison, Dennis L and Nygren, Richard E.},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2007},
month = {Fri Jun 01 00:00:00 EDT 2007}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • Abstract not provided.
  • An airborne infra-red survey has been flown over urban, industrial and undeveloped land in the Tauhara and some other geothermal fields in New Zealand using an Aga Thermovision model 665 camera, operating in the 4.5 to 5.5 um band. Maps have been prepared from the thermograms which divide the surface temperatures into three ranges, at ambient temperature, 1-3/sup 0/C above ambient and more than 3/sup 0/C above ambient. The 3/sup 0/C contour coincides with the boundary between regions of conductive and convective heat flow determined from surface measurements. Methods have been developed for determining the heat flow from the infra-redmore » and other data. Some previously unknown areas of warm ground have been discovered and some thermal anomalies of non-geothermal origin identified and their effects eliminated. To assist the planning of industrial and urban development, it is intended to conduct similar surveys at approximately three yearly intervals to monitor any changes of the hydrothermal activity.« less
  • The Scanning Infra-Red Microscope (SIRM) and similar imaging systems take advantage of the fact that semiconductors are transparent to infra-red light to provide an alternative to cleaving and etching. A schematic view of the SIRM. It utilizes the principle of reflection scanning confocal microscopy to image inhomogeneities in the bulk of the specimen. A beam of infra-red light (1320nm wavelength) from a laser is expanded and then focused into the specimen, forming a probe with approximate dimensions of 1 micron wide by 7 microns long. Light will only scatter off precipitates of a different refractive index from the bulk. Thismore » scattered light is projected towards the detector lens which produces a magnified image of the probe on the detector. The pinhole is placed in front of the detector so that only light originating from the probe gets to the detector. This results in the rejection of out of focus light, and thus depth sectioning.« less
  • Thermal lag engines run both free piston and with pistons kinematically linked. Free piston, a thermal lag engine may be the simplest of all piston engines as it is valveless and has only one moving part, the piston. Horizontal and vertical thermal lag engines with substantially identical cooled pistons and cylinders are tested and evaluated, particularly as to power density. The horizontal engine has an elongated, small diameter heated chamber and the vertical engine has a large diameter flat heated chamber. Both heated chambers may be altered in volume to maximize engine power at optimum compression ratios. The power densitymore » of unpressurized thermal lag engines is compared to that of early commercial Stirling cycle unpressurized air engines. The comparison indicates the potential for applying well-known modern Stirling technology to thermal lag engines.« less