ML18093A385: Difference between revisions
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{{#Wiki_filter:AEROTEST OPERATIONS, INC. 3455 FOSTORIA WAY* SAN RAMON, CA 94583 * (925) 866-1212 | {{#Wiki_filter:AEROTEST OPERATIONS, INC. | ||
* FAX (925) 866-1716 March 29, 2018 ATTENTION: | 3455 FOSTORIA WAY* SAN RAMON, CA 94583 * (925) 866-1212 | ||
Document Control Desk U.S. Nuclear Regulatory Commission White Flint North 11555 Rockville Pike Rockville, MD 20852-2738 AEROTEST RADIOGRAPHY AND RESEARCH REACTOR DOCKET NO. 50-228/LICENSE NO. R-98. | * FAX (925) 866-1716 March 29, 2018 ATTENTION: Document Control Desk U.S. Nuclear Regulatory Commission White Flint North 11555 Rockville Pike Rockville, MD 20852-2738 AEROTEST RADIOGRAPHY AND RESEARCH REACTOR DOCKET NO. 50-228/LICENSE NO. R-98. | ||
==SUBJECT:== | ==SUBJECT:== | ||
Clarification of TS 6.6 Ladies and Gentlemen: | Clarification of TS 6.6 Ladies and Gentlemen: | ||
The orientation of the detector to the neutron source and loading sequence are crucial to a successful and accurate subcritical multiplication plot (1/M versus U-235 mass) used for the prediction of criticality. | The orientation of the detector to the neutron source and loading sequence are crucial to a successful and accurate subcritical multiplication plot (1/M versus U-235 mass) used for the prediction of criticality. | ||
There appears to be confusing legacy language in the ARRR Technical Specifications 6.6 that requires clarification. | There appears to be confusing legacy language in the ARRR Technical Specifications 6.6 that requires clarification. I request that the existing TS 6.6 be amended so I can use an optimal method for the approach-to-criticality measurement and change the nomenclature "critical experiment" which is confusing based on the common definition of"experiment" to the more common title "approach-to-criticality measurement". | ||
I request that the existing TS 6.6 be amended so I can use an optimal method for the approach-to-criticality measurement and change the nomenclature "critical experiment" which is confusing based on the common definition of"experiment" to the more common title criticality measurement". | This is the current TS as written: 6.6 "During a critical experiment a subcritical multiplication plots shall be obtained from at least three instrument channels. These channels may be used in addition to the normal operating instrumentation in Table l ." | ||
This is the current TS as written: 6.6 "During a critical experiment a subcritical multiplication plots shall be obtained from at least three instrument channels. | This is the proposed amended language for TS: 6.6 "During fuel loading of an empty core or a significant number of fuel additions, omissions, exchanges and/or shuffling of an existing core, a subcritical multiplication plot shall be obtained by performing an approach-to-criticality measurement." | ||
These channels may be used in addition to the normal operating instrumentation in Table l ." This is the proposed amended language for TS: 6.6 "During fuel loading of an empty core or a significant number of fuel additions, omissions, exchanges and/or shuffling of an existing core, a subcritical multiplication plot shall be obtained by performing an approach-to-criticality measurement." Should you have any questions or require additional information regarding this submission, please contact AO President David M. Slaughter, Ph.D. at (801) 631 5919 or dmsraven@gmail.com I declare under penalty of perjury that the statements above are correct and truthful. . Slaughter, Ph.D. President and Reactor Admin. Aerotest Operations, Inc.}} | Should you have any questions or require additional information regarding this submission, please contact AO President David M. Slaughter, Ph.D. at (801) 631 5919 or dmsraven@gmail.com I declare under penalty of perjury that the statements above are correct and truthful. | ||
. Slaughter, Ph.D. | |||
President and Reactor Admin. | |||
Aerotest Operations, Inc.}} | |||
Revision as of 11:48, 21 October 2019
| ML18093A385 | |
| Person / Time | |
|---|---|
| Site: | Aerotest |
| Issue date: | 03/29/2018 |
| From: | Slaughter D Aerotest |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML18093A385 (1) | |
Text
AEROTEST OPERATIONS, INC.
3455 FOSTORIA WAY* SAN RAMON, CA 94583 * (925) 866-1212
- FAX (925) 866-1716 March 29, 2018 ATTENTION: Document Control Desk U.S. Nuclear Regulatory Commission White Flint North 11555 Rockville Pike Rockville, MD 20852-2738 AEROTEST RADIOGRAPHY AND RESEARCH REACTOR DOCKET NO. 50-228/LICENSE NO. R-98.
SUBJECT:
Clarification of TS 6.6 Ladies and Gentlemen:
The orientation of the detector to the neutron source and loading sequence are crucial to a successful and accurate subcritical multiplication plot (1/M versus U-235 mass) used for the prediction of criticality.
There appears to be confusing legacy language in the ARRR Technical Specifications 6.6 that requires clarification. I request that the existing TS 6.6 be amended so I can use an optimal method for the approach-to-criticality measurement and change the nomenclature "critical experiment" which is confusing based on the common definition of"experiment" to the more common title "approach-to-criticality measurement".
This is the current TS as written: 6.6 "During a critical experiment a subcritical multiplication plots shall be obtained from at least three instrument channels. These channels may be used in addition to the normal operating instrumentation in Table l ."
This is the proposed amended language for TS: 6.6 "During fuel loading of an empty core or a significant number of fuel additions, omissions, exchanges and/or shuffling of an existing core, a subcritical multiplication plot shall be obtained by performing an approach-to-criticality measurement."
Should you have any questions or require additional information regarding this submission, please contact AO President David M. Slaughter, Ph.D. at (801) 631 5919 or dmsraven@gmail.com I declare under penalty of perjury that the statements above are correct and truthful.
. Slaughter, Ph.D.
President and Reactor Admin.
Aerotest Operations, Inc.