ML20070H211
| ML20070H211 | |
| Person / Time | |
|---|---|
| Site: | Clinch River |
| Issue date: | 10/28/1982 |
| From: | Longenecker J ENERGY, DEPT. OF, CLINCH RIVER BREEDER REACTOR PLANT |
| To: | Check P Office of Nuclear Reactor Regulation |
| References | |
| HQ:E:82:034, HQ:E:82:34, NUDOCS 8212230253 | |
| Download: ML20070H211 (5) | |
Text
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y DESIGNATED ORIGINAL C'ertified 1,7 M/
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Department of Energy A Q Washington, D.C. 20545 Docket No. 50-537 HQ:E:82:034 OCT 28 @
Mr. Paul S. Check, Director CRBR Program Office Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Dear Mr. Check:
CLINCH RIVER BREEDER REACTOR PLANT (CRBRP) IMPACTS ON ORGDP AND Y-12 Enclosed for your use are radiological dose calculations used in assessing the potential impact of CRBRP accidents on operation of the Oak Ridge Gaseous Diffusion Plant and the Y-12 Plant.
Sincerely.
l JdnR.Longen$ker Acting Director, Office of the Clinch River Breeder Reactor Plant Project Office of Nuclear Energy Enclosure cc: Service List Standard Distribution Licci' sing Distribution Ol DO s
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8212230253 821028
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PDR ADOCK 05000537 A
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o CRBRP DOSE ESTIMATES Cases Evaluated Site Suitability Source Term ($3ST) - This source term is defined in the CRBRP Preliminary Safety Analysis Report - 5%
ecctor specific X/Qs were used in the dore calculations.
1 Hypothetical Core Disruptive Accident (BCDA) - The source term for this BCDA evaluation is for Case 2 from CRBRP'3, Volume 2,
" Hypothetical Core Disruptive Accident Considerations in CRBRP; Accessment of Thermal Margin Beyond the Design Base" - The 1cng-term plutonium release has been reduced by a factor of 700 en a result of a recent reevaluation of the gas spargin.
mechanism - 50% sector specific X/Qs were used in the dose calcu,1ations.
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O SSST Casel (area)
Red Whole Bone Bone
_RadY Lung Surface Thyroid Liver Marrow Inhalation 2.5 ci NNW 21 390 1300 510 780 98 (ORGDP) 9.0 ai NE 1.3 24 80 31 48 6.0 (Y-12)
Immersion ORGDP 41 36 64 44 31 59 Y-12 2.5 2.2 3.9 2.7 1.9 3.6 Ground Contamination
~~
2 ORGDP 34 (total deposition 54 uCi/m )
(plutonium deposition 7.7 X10-3 uCi/m )
2 2
Y-12 2.1 (total deposition 3.3 uCi/m )
(plutonium deposition 4.7 X10-4 uCi/m )
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1 A 7-day release is assumed for purposes of establishing ground contamination levels including radiological decay.
Source terms were for a 30-day release.
Inhalation doses are 50-year dose commitments.
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BCDA Case - Initial Release 2 (ares)
Red Whole Bone Bone Body Lung Surface Thyroid Liyxi Marrow Inhalation 2.5 mi N 19 490 180 7000 130 28 (ORGDP) 9.0 mi NE 3.5 91 33 1300 25 5.2 (Y-12)
Immersion ORGDP 86 70 130 91 65 130 Y-12 16 13 25 17 12 24 Ground Contamination 2
ORGDP 26 (total deposition 47 tCi/m )
2 (plutonium deposition 1.8 X10-3 uCi/m )
2 Y-12 4.9 (total deposition 8.7 uCi/m )
2 (plutonium deposition 3.4 X10-4 uCi/m )
2 A 7-day release period is asumed for the purpose of establishing ground contamination levels including radiological decay.
Source terms used were for a 30-day release.
Ir.halation doses are 5-year dose commitments.
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BCDA Case Long Term Release 3 Red Whole Bone Bone Body LEng Surface Thyroid Liver Marrow Inhalation (arem) 2.5 ci N
.37 2.1 29
.04 5.9-2.3 (ORGDP) 9.0 Gi NE
.06
.36 4.9
.01
.96
.37 (Y-12)
Ground DeDosition (plutonium)
ORGDP 3.7 X10-4 uCi/m2 Y-12 6.1 X10-5 uCi/m -7 3
The release period is 6 months.
Inhalation doses are 50-year dose commitments.
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