IR 07100028/2011006
| ML20199H116 | |
| Person / Time | |
|---|---|
| Site: | 07100028 |
| Issue date: | 11/19/1997 |
| From: | Harry Felsher NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Weber M NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| NUDOCS 9711260023 | |
| Download: ML20199H116 (2) | |
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November 19,1997 V7 Michael F. Weber, Chief Licensing Branch Division of Fuel Cycle Safety and Safeguards, NMSS THRU: Me'anie A. Galloway, Chief
. ensing Section 2 1 Licensing Branch ]I i Division of Fuel Cycle Sa'ety and Safeguards, NMSS ,
FROM: Harry Felsher, Engineer Licensing Branch g"gMd)
Division of Fuel Cycle Safety and Safeguards, NMSS SUBJECT: Trip Report for SCALE Training Courses Oct. Nov.1997 ,
The purpose of the trip was to attend the 1997 SCALE Cnticality Safety Course and the Shielding & Source Term Course held at Oak Ridge National Laboratory from October 28 -
November 6,1997.
The Criticality Safety course was taught by the past and present developers of the criticality safety analysis sequences (CSASs). A brief history on the use of SCALE and the CSASs was useful to all participants. The use of the graphical user interface (GUI) CSASIN program to create input decks was extremely beneficial to even the experienced users of the CSASs. The demonstration of KENO 3D to plot the model geometry in a GIF file was shown to be very useful. However, it is only usable in computers using either Windows '95 or Windows NT as an operating system. KENO VI should only be used in extremely complicated geometries that could not be modeled or approximated using KENO V.a because similar problems take a much longer time to run on KENO VI. It is recommended that the ' Plot * modula be used with
"Parm= check" before the problem is run to confirm that the correct geometry was modeled, After results are obtained, it is extremely useful to study the graphe P.:4 were generated to detqrmine whether the solution has converged.
The morning lectures were based on either a generic enticality safdy issue (e.g., determination /
of uncettainties, Monte Carlo techniques, or benchmarks), the use of a module in CSAS /)
(KENO V.a or KENO VI), or specific examples of how to use a CSAS module (e.g., standard composition library, holee, arrays, or output). The aftemoon sessions provided a group atmosphere to solving problems based on the morning's lectures. Usually, the problems had h3 various levels of difficulty allowing each group to solve the problems that they were comfortable with. Most of the time, all the problems were not solved at the end of the afternoon. Instructors were available in the afternoon (and past the end time) to help groups solve the problems. The solutions to the problems were discussed in class the next day, and ine students were given electronic copies to take back with them.
I learned relevant job-related information on how to model situations and interpret results from the class it is highly recommended that anyone performing criticality safety analyses or reviews should take this class, g g g_j e - G7 W N1 PDR 60023 971119 ORG NOMA
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i The Radiation Shielding course was mainly taught by users of the shielding anMysis sequences (SASS / A brief history on the use of SCALE and the SASS was useful to all participar.t I Unlike the CSASs, each SAS was an individual unit using different types of inputs and I generating different types of outputs. The SASS were specifically designed for light water {
i reactor fuel bundle lattices; however, they can be used in a variety of circumstances. The main uses in the class wer; for determining spent fuel isotopics and dc,simetry measurement I I
Several of the SASS had GUl i l
The moming lectures were based on the use of a module in SAS (e g., SAS1, SAS2, SAS4, QUADS). The afternoon sessions provided a group atmosphere to solving problems based on the morning's lectures. Usually, the problems had i ..rious levels of difficulty allowing each group to solve the problems that they were comfortaule with. Instructors were available in the afternoon (and past the end time) to help groups solve the problems. The solutions to the problems were discussed in class the next day, and the students were given electronic copies to take back with the I learned relevant job-related information on how to modellattices from the class. It is highly recommended that anyone performing fuel burnup calculations, dosimetry calculations, or heating calculations in spent fuel storage or transportation packages should take this clas DjaldbutiOD PUBLIC NRC File Center NMSS r/f FCSS r/f FCLB r/f
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