ML20049K007
| ML20049K007 | |
| Person / Time | |
|---|---|
| Site: | Vallecitos Nuclear Center |
| Issue date: | 02/24/1982 |
| From: | Titus G GENERAL ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20049K001 | List: |
| References | |
| NUDOCS 8203290314 | |
| Download: ML20049K007 (4) | |
Text
GENERAL ELECTRIC NUCLEAR TEST REACTOR ANNUAL REPORT NO. 22 License R-33 Docket 50-73 i
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8203290314 820224 PDR ADOCK 05000073 R PDR
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O GENERAL ELECTRIC NUCLEAR TEST REACTOR ANNUAL REPORT #22 I. INTRODUCTION This report summarizes the operation, changes, tests and experiments at the Nuclear Test Reactor (NTR) which were authorized pursuant to license R-33 and 10CFR50, section 50.59, for the period January 1,1981 through December 31, 1981.
II. GENERAL A. The reactor was operated at or above critical for 873 hours0.0101 days <br />0.243 hours <br />0.00144 weeks <br />3.321765e-4 months <br />. A total of 431 startups were made. Five (5) scrams and five (5) unscheduled shutdowns occurred during this period.
B. The average annual radiation exposure to facility personnel was 1.677 Rem.
C. There were no occurrences that required notification or reports to the NRC.
III. ORGANIZATION There were no changes to the organizational structure at the NTR during 1981.
IV. CHANGES, TESTS, AND EXPERIMENTS APPROVED BY THE MANAGER, REACTOR IRRADIATIONS l
A. Changes Pursuant to 10CFR50.59(a), the Manager, Reactor Irradiations authorized four (4) changes during 1981; the changes completed in 1981 are briefly described below:
- 1. Facility Personnel - Responsibilities and Qualifications l
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Description:
This change was an addition to the procedures which documented certain responsibilities and qualifications of selected personnel assigned to the facility.
Safety Analysis: This change is entirely administrativd. It does not l involve an unreviewed safety question or a technical specification change.
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- 2. Temporary Secondary Water Supply
Description:
This change authorized the temporary hookup of the Building 105 potable water supply which is the source of the NTR secondary coolant to a fire hydrant with a fire hose. This was required so that the normal l
water supply line could be excavated to inspect for leaks.
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1 Safety Analysis: The accident associated with the water supply system
" loss of secondary coolant" has been thoroughly analyzed in the Safety Analysis Report (APED-4444A). The consequences of this accident were found to be trivial.
- 3. Security Alarm (Central Alarm Station)
Description:
This change authorized removing the NTR motion detection alarm from the Honeywell computer and reconnecting via the telephone wires to a Perim-Alert System.
Safety Analysis: This change improves reliability of the security alarm system.
- 4. Neutrography of Explosives
Description:
This change is the description and safety analysis for the neutrography of explosives in the North Room Facility at the NTR.
Safety Analysis: Within the constraints placed on the amount of ex-plosives permitted, no damage would result to the reactor in the event of detonation.
B. Experiments There were a total of 704 individual experiments reviewed, approved and performed in 1981.
No new types of experiments were performed which are different from those already described in Section 7.0 of the Summary Safeguards Report for the General Electric Nuclear Test Reactor, APED-4444A or as speci-fied in annual reports submitted since the submittal of APED-4444A.
However, the description and safety analysis of two types of experiments were updated as follows:
- 1. Reactivity Testing Upon implementation, required documentation, review and approval cri-t teria for individual experiments will be changed. " Routine" samples and an improved method for evaluating "non-routine" samples will also l be established.
- 2. Neutron Radiography - North Room Explosives l . .
Established explosive limits, required documentation, review and appro' val criteria for individual experiments containing explosives for the North Room Modular Stone Monument (shielding blocks) Neu-I tron Radiography facility (see Item A.4.).
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I i C. Tests No special tests were performed during 1981 that required authorization of the Manager, Reactor Irradiations.
V. CONCLUSION The overall operating experience of the Nuclear Test Reactor reflects another year of safe efficient operations. We anticipate the operation of the reactor will continue on this basis.
GENERAL ELECTRIC COMPANY Irradiation Processing Operation i
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By M jf
[.W.Titus, Manager Engineering & Support Service