Unattended mode operation of specialized NDA (nondestructive assay) systems

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Description

Nondestructive assay systems have been developed to allow data acquisition equipment to operate unattended in an automated mixed oxide facility, reducing inspector time in a facility and giving them time for other activities. Fewer inspector visits mean less impact on plant operators. Neutron detectors are located at key measurement points in the facility. Near each detector is located an electronics cabinet, which contains two JSR-11 shift registers, two COMPAQ Portable III computers, and a printer. The signal from the detector is split and sent to each shift register for redundancy and reliability. The software for unattended operation consists primarily of ... continued below

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Pages: 6

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Klosterbuer, S.F.; Kern, E.A.; Painter, J.A. & Takahashi, S. January 1, 1989.

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Nondestructive assay systems have been developed to allow data acquisition equipment to operate unattended in an automated mixed oxide facility, reducing inspector time in a facility and giving them time for other activities. Fewer inspector visits mean less impact on plant operators. Neutron detectors are located at key measurement points in the facility. Near each detector is located an electronics cabinet, which contains two JSR-11 shift registers, two COMPAQ Portable III computers, and a printer. The signal from the detector is split and sent to each shift register for redundancy and reliability. The software for unattended operation consists primarily of two programs, COLLECT and REVIEW. The COLLECT program runs on the computers in unattended operation; shift-register data are acquired each 60 s. The COLLECT program distinguishes between a normal background and a disconnected signal, between material moving near the detector and material in the detector, and whether the material in the detector is a sample or a californium normalization source. Depending on the type of assay, different data are stored on the hard disk. During an inspection, the inspector stops the current measurement campaign, examines the data from both computers briefly at the electronics cabinet, copies the campaign data to floppy disk, and starts another measurement campaign. These data are examined later in another location using the REVIEW program running on high performance microcomputers: a COMPAQ DeskPro 386/20 or equivalent. The REVIEW program uses graphical displays to enable the inspector to quickly search through the massive amounts of accumulated data to learn when samples were measured. Data from the desired measurements are then transferred to the International Atomic Energy Agency high-level neutron coincidence program for further analysis. 3 refs., 7 figs.

Physical Description

Pages: 6

Notes

NTIS, PC A02 - OSTI; 3.

Source

  • 30. annual meeting of the Institute of Nuclear Materials Management, Orlando, FL, USA, 9 Jul 1989

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  • Other: DE89014287
  • Report No.: LA-UR-89-2151
  • Report No.: CONF-890736-23
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 6076671
  • Archival Resource Key: ark:/67531/metadc1105498

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1989

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

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  • May 25, 2018, 5:39 p.m.

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Klosterbuer, S.F.; Kern, E.A.; Painter, J.A. & Takahashi, S. Unattended mode operation of specialized NDA (nondestructive assay) systems, article, January 1, 1989; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1105498/: accessed September 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.