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

Title: Multiple Testing Techniques and Multiple Conclusions in AM Metals.

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:
1398362
Report Number(s):
SAND2016-9808C
647911
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the Rio Grande Symposium on Advanced Materials 2016 held October 3, 2016 in Albuquerque, NM.
Country of Publication:
United States
Language:
English

Citation Formats

Carroll, Jay, Rodelas, Jeffrey, Deibler, Lisa Anne, Jared, Bradley Howell, Salzbrenner, Bradley, and Boyce, Brad Lee. Multiple Testing Techniques and Multiple Conclusions in AM Metals.. United States: N. p., 2016. Web.
Carroll, Jay, Rodelas, Jeffrey, Deibler, Lisa Anne, Jared, Bradley Howell, Salzbrenner, Bradley, & Boyce, Brad Lee. Multiple Testing Techniques and Multiple Conclusions in AM Metals.. United States.
Carroll, Jay, Rodelas, Jeffrey, Deibler, Lisa Anne, Jared, Bradley Howell, Salzbrenner, Bradley, and Boyce, Brad Lee. 2016. "Multiple Testing Techniques and Multiple Conclusions in AM Metals.". United States. doi:. https://www.osti.gov/servlets/purl/1398362.
@article{osti_1398362,
title = {Multiple Testing Techniques and Multiple Conclusions in AM Metals.},
author = {Carroll, Jay and Rodelas, Jeffrey and Deibler, Lisa Anne and Jared, Bradley Howell and Salzbrenner, Bradley and Boyce, Brad Lee},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 9
}

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:
  • The Radionuclide Assay System - Photon (RAS-P) is a near-field, transmission-corrected assay system developed for measurement of the actinide content of relatively homogeneous waste generated by facility operations. It is intended for use by facility operations personnel, and has features to enhance its usefulness and efficiency. These include multinuclide assay capability, automatic (off-shift) collection of background and straight-through transmission source data, enforcement of measurement control requirements, Go-NoGo or Assay modes, password protection, and reporting of total fissile gram equivalent values. System hardware consists of a shielded high-resolution germanium detector, a turntable, a shielded transmission source and shutter assembly, and amore » desktop computer and laser printer mounted on a compact frame. RAS-P was designed to assay the contents of cylindrical containers up to 30 inches diameter by 32 inches high, boxes up to 30 inches diagonal by 32 inches high, and HE PA filters up to 2 x 2 x 1 feet. Prior to installation at the Savannah River Site (SRS), code validation, system performance, and assurance against Y2K effects all were confirmed. Code validation was accomplished using spreadsheet calculations that were independent of the original code to calculate intermediate and final result produced by RAS-P. System testing was performed by repeated operation of the instrument under all required circumstances. Y2K testing was performed simultaneously with code validation following a protocol prescribed by the SRS Y2K subcommittee that required assays with dates varying throughout the expected useful life of the RAS-P, particularly those bracketing Y2K boundaries. Performance history has been compiled demonstrating reliability (system availability), diversability (the ability to alter assay parameters and obtain results quickly), and measurement control characteristics.« less
  • The authors compare analytically techniques for multiple-photon coincidence imaging in terms of spatial resolution, detector efficiency (or simply efficiency), and system sensitivity for a spherical water phantom (or simply sensitivity). One analysis consists of comparing photon-photon coincidence single-photon-emission computerized tomography (PP-SPECT) with angularly unconstrained, electronically collimated triple-photon coincidence imaging technique (TPCIT). A second analysis compared positron-emission tomography using time-of-flight information (TOF-PET) with angularly constrained, electronically collimated TPCIT. The angularly unconstrained TPCIT has similar spatial resolution, higher efficiency, and higher sensitivity, as compared with PP-SPECT. The angularly constrained TPCIT has similar spatial resolution, lower efficiency, and lower sensitivity, as compared withmore » TOF-PET.« less
  • Techniques for preparing multiple electron transparent regions at several depth levels below the surface of a metal disk specimen are described. These techniques are relatively rapid and find application in many areas involving surface studies. Examples are shown of multiple thin areas produced at intervals of approximately 200 nm below the original surface of a stainless steel bombarded with 4 MeV Ni/sup +2/ ions for void swelling studies.