ML20335A097
| ML20335A097 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 11/18/2020 |
| From: | Exelon Generation Co |
| To: | Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML20335A110 | List: |
| References | |
| Download: ML20335A097 (3) | |
Text
This curve is valid for all assemblies that have cooled at least 9 years.
All assemblies loaded into DSC must meet the source spectra requirements of Technical Specification 2.1.
- This bounding radiological limit curve may be superceded with bundle specific source spectra calculations based on actual cooling times.
Calvert Cliffs Nuclear Power Plant, Independent Spent Fuel Storage Installation 24P DESIGN BASIS RADIOLOGICAL LIMIT CURVE FOR 660 WATTS/ASSEMBLY (Reference 7.20)
USAR Figure 7.2-1 Revision 20 t-:e -
"O 3: :e -
C.
- s C
I.,
- s co 60000 55000 50000 45000 40000 35000 30000 25000 20000 2.00
/ V
/
V
.V I
I I
Acceptable Region I 2.50 3.00 3.50 4.00 4.50 5.00 Enrichment (wt% U235)
Calvert Cliffs Independent Spent Fuel Storage Installation DOSE RATES VS E-W DISTANCE FROM HSM (HSM ENDS)
[REFERENCES 7.21, 7.23, AND 7.24]
USAR Figure 7.4-1 Revision 26 1.E+01
=
Bounds 24P/32P/32PHB -
(.)
1.E+00 C
ns a.
(.)
~
(.)
1.E-01 0
~
0 0
0
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1.E-02
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E 1.E-03 a, -
ns a:
a,
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0 1.E-04 0
1.E-05
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10 100 1000 10000 Distance Feet from H SM End (E/W)
Calvert Cliffs Independent Spent Fuel Storage Installation DOSE RATES VS N-S DISTANCE FROM HSM (HSM FRONTS)
[REFERENCES 7.21, 7.23, AND 7.24]
USAR Figure 7.4-2 Revision 26 1.E+01
-Bounds 24P/32P/32PHB ::
-s;:;
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0 1.E+00 C
ns
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(I)...
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0 1.E-04
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10.00 100.00 1000.00 10000.00 Distance Feet from HSM Front (N/S)