ML20056H605

Application for Rev to Certificate of Compliance 5450 for Model RCC Shipping Package

ML20056H605
Person / Time
Site:	07105450
Issue date:	09/03/1993
From:	Sanders C WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:	Haughney C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
References
CON-NRC-93-024, CON-NRC-93-24 NUDOCS 9309100181
Download: ML20056H605 (32)

Text

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NRC-93-024 l

Westinghouse Commercial Nuclear 32*e Fi Electric Corporation Fuel Division

$7s8 ygiy"*82322 3

September 3,1993 U. S. Nuclear Regulatory Commission Charles J. Haughney, Chief 6H3 Storage and Transport Systems Branch Division of Industrial and Medical Nuclear Safety, IMNS 11555 Rockville Pi'.:e Rockville, MD 20852

Subject:

Docket 71-5450: Application for Approval of Packaging, RCC Shipping Containers. Supplement to Request for Letter Amendment dated September 1, 1993 l

Gentlemen:

Enclosed is a supplement to data already submitted as attachments to our letter NRC-93-023, dated September 1,1993, requesting a letter amendment to Certificate of Compliance USA /5450/AF. This information is being sent to address questions raised during telephone conversations between Westinghouse and NRC on September 2 and 3,1993.

If you have any questions concerning this submittal, please write to me at the above address telephone (803) 776-2610, extension 3426; or fax (803) 695-3964.

Sa.

O k

C. F. Sanders, Manager i

Nuclear Material Management & Product Records

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Addendum to letter NRC-93-023, dated 9/1/93 0031 5"r='''"''

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Sw macunnhnuco l'aminercialA!uclearFuelDivision - - Minnerofttie 1988/rfalcolinBaldrigJValtoria/O 9309100181 930903 i

PDR ADOCK 07105450 C

PDR

ASSEMBLY CONFIGURATION 14X14 OFA ASSEMBLY Pellet OD 0.3444 in. nominal Rod OD 0.4000 in. nominal Clad thickness 0.0225 in. minimum 2"U/ assembly 18.5 kgs. maximum T

I Addendum to leuer NRC-93-023, dated 9/1/93 September 3,1993 Page 2 of 31 l

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GRID (CLAMPING FRGE ARM) SPACING 14X14 OFA ASSEMBLY T I T/N ADAPTOR PLATEl ~

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l 149.361 1

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l 1s.004 A

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- l GRID 6 l C l

131.367 i

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26.190 T

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i 166.300 106.167

- I GRID 6 l 1 l

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26.190 V

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l 78.977 I GRID 4 1 E 1

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26.190 I

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62.787 l GRID 3 i F 1

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l 26.190 U

72.000 i

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24.253 L

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2.383 80TTOM N0ZZLE 4

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Addendum to Leuer NRC-934323, dated 9/1/93 September 3.1993 Page 3 of 31 l

i REACTIVITY DIFFERENCES l

Calculations have been performed using the KENO Va criticality code to evaluate the reactivity of the Westinghouse RCC shipping container when loaded with NSP 14x14 OFA fuel l

assemblies. The NSP assemblies include six inch, enriched, annular axial blankets on both the top and bottom ends of the active fuel zone. Fuel assembly enrichment was assumed to wt% for both the solid center pellets and the annular axial blanket pellets.

Five cases were modeled. Table A describes each case and the resultant reactivity. The KENO decks for each of the five cases are listed in Tables B through F. The water density at which optimum moderation occurs,0.02 g/cm', was determined by making multiple KENO run data from these runs are presented in Figure 5. A sketch of the model is presented in Figure

6. All cases were modeled under the Hypothetical Accident Condition (HAC) scenario.

Case 1 evaluates the RCC cask reactivity under the same bases and assumptions applied to al previous Westinghouse cask evaluations - namely, that the insides of the fuel rods a there is no ingress of the water which is assumed to flood the open areas within the package.

The model is three-dimensional and does not take into account any of the package materials l

construction.

Case 2 is identical to the first, except that the water is assumed also to penetrate into the inside of each fuel rod and flood the pellet-to-clad gap areas and the annulus of the annular blanket pellets.

Case 3 is a two-dimensional model. Assumptions modeled are as follows: the entire pellet stack is solid, there is optimum moderation around the assembly, the inside of the rod remains dry, and approximately 50% of the package materials of construction are taken into account.

P Case 3* was originally analyzed in 1985 (Table 8, Page 19-20, dated 12/20/85) and is includ here for reference. It assumes a solid pellet stack, full density water around the assembly, no water inside the rod, and no package materials of construction taken into account. It is also a l

two-dimensional model.

l Case 4 is again a three-dimensional model. It is identical to Case 2 except that partial dens water around the assembly is postulated. Full density water is assumed to be inside the rod in the annulus and pellet-to-clad gap.

i Case 5 is also three dimensional, and is identical to Case 4 except that the pellet stack is assumed to be solid along its entire length.

l Note the AK,y between Cases 1 and 2, and between Cases 4 and 5. This increase in reactivi I

is on the order of the uncertainty of KENO (=0.005). Comparing Cases 1 and 2, we can see Addendum to letter NRC-93423. dated 9/1/93 September 3.1993 Page 4 of 31 I

that introducing water inside the rod containing annular pellets does not significantly increase reactivity (AK = 0.005). Comparing Cases 4 and 5, we see that introducing annular pellets at reduced water density also does not significantly increase reactivity (AK = 0.005). Comparing Cases 1 and 5, and Cases 2 and 4, shows that the effect of reducing water density from full density to optimum moderation outside the rods produces a slightly larger AK which is less than 0.013. However, comparing Cases 3 and 3*, we see that even taking into account optimum moderation, inclusion of the package materials of construction into the model results in a significant decrease (AK =.14)in reactivity for a solid pellet model.

It has been demonstrated that while introduction of annular pellets, and flooding the annulus, resulted in a small increase in reactivity, and introduction of optimum moderation resulted in a slightly larger increase in reactivity, it is also shown that taking package materials of construction into consideration results in a decrease in reactivity which is an order of magnitude less than the previously discussed increases. From this, we infer that inclusion of the package materials of construction in the model, at optimum moderation, would result in Kar ignificantly s

I less than 0.95, and therefore, that the acceptance criteria for criticality are satisfied.

s i

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Addendum to Letter NRC-93-023. dated 9/1/93 September 3.1993 Page 5 of 31 1

1

TABLE A KENO CASES FOR 14X14 OFA FUEL ASSEMBLY PELLET GJTSIDE ROD INSIDE ROD CASE NS MODE CONFIG MODERATOR MODERATO K,

1-a 95/95-K AK L

DENSITY R DENSITY l

3D SOLID / ANN 1.00 0.0 0.92487 0.00490 0.94126 0.0052 2

3D SOLID / ANN 1.00 1.0 0.93107 0.00425 0.94646 3

2D' SOLID 0.02 0.0 0.79181 0.00401 0.80683 3*

2D SOLID 1.00 0.0 0.93231 0.00359 0.94677 4

3D SOLID / ANN 0.02 1.0 0.94439 0.00376 0.95909

~

5 3D SOLID 0.02 1.0 0.94007 0.00335 0.95411 1.

Model includes additional metal components.

i

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i Addendum to I.stter NRC-93423. dated 9/I/93 j

September 3.1993 Page 6 of 31

.. - ~.

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i FIGURE 5 RCC OPTIMUM MODERATION REACTIVITY vs. MODERATOR DENSITY 0.90 0.85 i

0.40 j

-d h

I

+

f g

y 0.75 3

i 0.70 080 t

0.40 0

0.01 0.02 0.05 0.04 0.05 0.08 VRTER DENSITY. g/co b

i Addendum to letter I;kC-93-023, dated 9/1/93 september 3,1993 Page 7 of 31 1

I

FIGURE 6 KENO MODEL OF SQUARE LATTICE ASSTMBLY Wmi1N CONTAINER i

UTILIZED IN OFIBiUM MODERATION EVALUATION l

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Met to tede) h/ $fffffY

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8 s x s a s.neen s a s a s.as I.L. h "

(d) yyggga (b) Unistrut channel-side strongback skin - 4x3x.25 cradle angle (c) 3x2x5/16 sealing flanges - 1.66x7.19x.19 shockmount angle (d) 3x3x.38 skid mount flange (e) Clampframe Addendum to I.ener NRC /3#,.3, dated 9/1/93 Septemk.3.1993 Page 8 of 31

TABLE B: KENO CASE 1 l

CASE 1).

TITLE-CASK WITH 14X14 OFA 5.00 W/O ASSEMBLY l

READ PARAMETERS TME = 6.0 RUN =YES PLT =YES i

GEN =900 NPG =300 NSK =005 LIB =41 l

XSl =YES NUB =YES END PARAMETERS READ MIXT SCT=2 MIX = 1

' SOLID UO2 PELLET 5.00 W/O (96.5% TD,0% DISH) i 1192235 0.0011942 1192238 0.022404 l

118016 0.047196 MIX = 2 1

' SOLID ZIRC FUEL ROD CLADDING 2140302 0.043326 MIX = 3

' ANNULAR UO2 PELLET 5.00 W/O (96.5% TD) 2292235 0.0011942 2292238 0.022404 228016 0.047196 MIX = 4

' ANNUL AR ZIRC FUEL ROD CLADDIN3 3240302 0.043326 MIX = 5

' H2O AT 1.00 G/CC 31001 0.066854 38016 0.033427 MIX = 6

' CARBON STEEL FOR STRONGBACK & SHELL 36012 4.728898E-4 315031 5.807008E-5 316032 6.642906E-5 325055 3.877064E-4 326000 8.420119E-2 MIX = 7

' GADOLINIA OXIDE ABSORBER (0.02 GM GD203/CM2 @ 0.01016 CM THICKNESS)

Addendam to htter NRC-93423, dated 9/1/93 September 3.1993 Page 9 of 31

48016 9.810529E-3 464152 1.308071E-5 464154 1.373474E-4 464155 9.679722E-4 t

464156 1.347313E-3 464157 1.026835E-3 464158 1.622008E-3 464160 1.425792E-3 MIX = 8

' CARBON STEEL SHEET FOR GD ABSORBER 56012 4.728898E-4 515G31 5.807008E-5 516032 6.642906E-5 525055 3.877064E-4 526000 8.420119E-2 END MIXT READ GEOMETRY UNIT 1 COM=" 14X14 OFA FUEL ROD - ENRICHED REGION" CYLINDER 1 1 0.437388 167.64 0.0 CYLINDER 01 0.44628 167.64 0.0 l

CYLINDER 21 0.50800 167.64 0.0 t

CUBOID 5 1 4P0.70612 167.64 0.0 UNIT 2 COM=" 14X14 OFA GUIDE TUBE - ENRICHED REGION" CYLINDER 51 0.62484 167.64 0.0 CYLINDER 21 0.66802 167.64 0.0 CUBOID 5 1 4P0.70612 167.64 0.0 t

UNIT 3 i

COM=" 14X14 OFA INSTRUMENT TUBE - ENRICHED REGION" CYLINDER 51 0.44704 167.64 0.0 CYLINDER 21 0.50673 167.64 0.0 i

i CUBOID 5 1 4PO.70612 167.64 0.0 UNIT 4 COM=" 14X14 OFA FUEL ROD - BL ANKET REGION" i

CYLINDER 01 0.218694 15.24 0.0 l

CYLINDER 31 0.437388 15.24 0.0-CYLINDER 01 0.44628 15.24 0.0 CYLINDER 41 0.50800 15.24 0.0 CUBOID 5 1 4PO.70612 15.24 0.0 i

UNIT 5 i

COM=" 14X14 OFA GUIDE TUBE - BLANKET REGION" AJJe*ulum to Leuct NRC-93423. dated t.,s3 September 3.1993 Page 10 of 31 l

l l

CYLINDER 51 0.62484 15.24 0.0 CYLINDER 21 0.66802 15.24 0.0 CUBOID 5 1 4PO.70612 15.24 0.0 UNIT 6 COM =" 14X14 OFA INSTRUMENT TUBE - BLA.NKET REGION" CYLINDER 51 0.44704 15.24 0.0 CYLINIER 21 0.50673 15.24 0.0 CUBOID 5 '. 4P0.70612 15.24 0.0 UNIT 7 t

COM=" BOTTOM EDGE OF CS STRONGBACK "

CUBOID 61 24.95550 0.0 0.0

-0.43720 182.88 0.0 UNIT 8 COM=" VERTICAL EDGE OF CS STRONGBACK "

CUBOID 61 0.0

-0.45720 24.13000 -0.45720 182.88 0.0 i

UNIT 9 4

COM=" GADOLINIA ABSORBER PANEL "

CUBOID 81 0.04445 -0.04445 18.41500 0.0 182.88 0.0 CUBOID 71 0.05461 -0.05461 18.41500 0.0 182.88 0.0 GLOBAL UNIT 10 COM=" 14X14 OFA ASSEMBLY IN CASK "

ARRAY 1 0.0 0.0 0.0 REPLICATE 51 20.32000 2.99720 5.08000 38.10000 15.24 0.0 1 t

HOLE 7 0.0 0.0 0.0 HOLE 8 0.0 0.0 0.0 l

HOLE 9 -0.85344 0.81280 0.0 l

REPLICATE 61 0.22606 0.0 0.22606 0.22606 0.22606 0.0 1 END GEOM l

READ ARRAY

/,RA=1 NUX=14 NUY=14 NUZ=2 COM=" 14x14 OFA ASSEMBLY "

LOOP 1

1 14 1

1 14 1

1 1

1 2 3 12 3 3 12 9 1

1 1

2 3 12 9 6 9 3 1

1 1

l 2 5 10 5 5 10 5 1

1 1

i l

3 7 7 1 8 8 1 1

1 1

4 1 14 1 1 14 1

2 2 1 5 3 12 3 3 12 9 2 2 1 5 3 12 9 6 9 3 2 2 1 5 5 10 5 5 10 5 2 2 1 i

6 7 7 1 8 8 1 2 2 1 END LOOP Addendum to letter NRC-93-023. dated 9/1/93 September 3,1993 Page 11 of 31 4

l END ARRAY READ BOUNDS ALL= SPECULAR END BOUNDS READ PLOT TTL=' BOX SLICE THROUGH ASSEMBLY ARRAY - SOLID PELLETS' PIC= BOX NCH = '0.GIHVA*'

XUL= 0.0 YUL= 19.77136 ZUL= 60.0 XLR= 19.77136 YLR= 0.0 ZLR= 60.0 UAX = 1.0 VDN=-1.0 NAX=130 i

END i

j TTL=' BOX SLICE THROUGH ASSEMBLY ARRAY - ANNULAR PELLETS' l

l PIC= BOX

[

NCH = 'O.GIHVA*'

+

XUL= 0.0 YUL= 19.77136 ZUL= 6.0 r

XLR= 19.77136 YLR= 0.0 ZLR = 6.0 UAX=1.0 VDN =-1.0 NAX =130 END TTL=' MAT SLICE THROUGH ASSEMBLY ARRAY - SOLID PELLETS' PIC= MAT NCH ='O.ZWSGS' XUL= 0.0 YUL= 19.77136 ZUL= 60.0 XLR= 19.77136 YLR= 0.0 ZLR= 60.0 UAX=1.0 VDN = -1.0 NAX= 130 END TTL=' MAT SLICE THROUGH ASSEMBLY ARRAY - ANNULAR PELLETS' PIC = MAT l

NCH ='O.ZWSGS' XUL= 0.0 YUL= 19.77136 ZUL= 6.0 XLR= 19.77136 YLR= 0.0 ZLR= 6.0 UAX=1.0 VDN =-1.0 NAX=130 END TTL=' BOX SLICE THROUGH CASK MODEL '

PIC= BOX NCH = '0.GIHVA*

• XUL= -2.99720 YUL= 30.15742 ZUL= 60.0 XLR= 40.31742 YLR=-38.32606 ZLR= 60.0 UAX = 1.0 VDN =-1.0 NAX = 130 END TTL=' MAT SLICE THROUGH CASK MODEL

• Addendum to Letter NRC-93C3. dated 9/I/93 t

September 3,1993 Page 12 of 31 j

PIC = MAT NCH = '0.ZWSGS' XUL= -2.99720 YUL= 30.15742 ZUL= 60.0 XLR= 40.31742 YLR=-38.32606 ZLR= 60.0 UAX = 1.0 VDN =-1.0 NAX =130 END TTL=' BOX SLICE THROUGH GD ABSORBER '

PIC= BOX NCH = 'O.GIHVA *

• l XUL= -2.99720 YUL= 20.00000 ZUL= 60.0 XLR= 0.65000 YLR= -2.00000 ZLR= 60.0 i

UAX = 1.0 VDN =-1.0 NAX =130 END TTL=' MAT SLICE THROUGH GD ABSORBER '

PIC = MAT NCH = '0.ZWSGS' l

XUL= -2.99720 YUL= 20.00000 ZUL= 60.0 l

XLR= 0.65000 YLR= -2.00000 ZLR= 60.0 UAX = 1.0 VDN = - 1.0 NAX = 130 f

END PLOT END DATA l

/ EOF l

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Addendum to Iziter NRC-93423. dated 9/1/93 September 3.1993 Page 13 of 31 l

l i

TABLE C: KENO CASE 2 1

1 CASE 2).

TITLE-CASK WITH 14X14 OFA 5.00 W/O ASSEMBLY t

i READ PARAMETERS TME = 7.0 RUN=YES PLT =YES GEN =900 NPG =310 NSK=005 LIB =41 XSl =YES NUB =YES END PARAMETERS READ MIXT SCT=2 i

MIX = 1 i

• SOLID UO2 PELLET 5.00 W/O (96.5% TD,0% DISH) 1192235 0.0011942 1192238 0.022404 118016 0.047196 MIX = 2

' H2O AT 1.00 G/CC IN SOLID PELLET GAP 231001 0.066854 i

238016 0.033427 i

MIX = 3

' SOLID ZIRC FUEL ROD CLADDING 2140302 0.043326 MIX = 4

• H2O AT 1.00 G/CC IN BLANKET FUEL ANNULUS 151001 0.066854 158016 0.033427 MIX = 5

• ANNULAR UO2 PELLET 5.00 W/O (96.5% TD) 2292235 0.0011942 2292238 0.022404 228016 0.047196 MIX = 6

• H2O AT 1.00 G/CC IN ANNULAR PELLET GAP 341001 0.066854 348016 0.033427 MIX = 7

' ANNULAR ZIRC FUEL ROD CLADDING 3240302 0.043326 MIX = 8 Addendum to Letter NRC-93-023, dated 9/1/93 September 3.1993 Page 14 of 31 l

-a a

m

.L_.

l l

l

' H2O AT 1.00 G/CC i

31001 0.066854 i

38016 0.033427 MIX = 9 i

' CARBON STEEL FOR STRONGBACK & SHELL 36012 4.728898E-4 315031 5.807008E-5 316032 6.642906E-5 l

325055 3.877064E-4 326000 8.420119E-2 MIX = 10

' GADOLINIA OXIDE ABSORBER (0.02 GM GD203/CM2 @ 0.01016 CM THICKNESS) l 48016 9.810529E-3 464152 1.308071E-5 464154 1.373474E-4 f

464155 9.679722E-4

[

4M156 1.347313E-3 464157 1.026835E-3 f

464158 1.622008E-3 464160 1.425792E-3 l

MIX = 11

• CARBON STEEL SHEET FOR GD ABSORBER 56012 4.728898E-4 515031 5.807008E-5 516032 6.642906E-5 525055 3.877064E-4 526000 8.420119E-2 END MIXT READ GEOMETRY l

UNIT 1 COM=" 14X14 OFA FUEL ROD - ENRICHED REGION" l

CYLINDER 11 0.437388 167.64 0.0 CYLINDER 21 0.44628 167.64 0.0 i

l CYLINDER 31 0.50800 167.M 0.0 CUBOID 8 1 4P0.70612 167.64 0.0 UNIT 2 i

COM=" 14X14 OFA GUIDE TUBE - ENRICHED REGION" CYLINDER 81 0.62484 167.64 0.0 l

CYLINDER 31 0.66802 167.64 0.0 l

CUBOID 8 1 4P0.70612 167.64 0.0 UNIT 3 COM=" 14X14 OFA INSTRUMENT TUBE - ENRICHED REGION" l

Addendum to Letter NRC-93423, dated 9/1/93 September 3,1993 Page 15 of 31 l

i i

i

CYLINDER 81 0.44704 167.64 0.0 CYLINDER 31 0.50673 167.64 0.0 CUBOID 8 1 4PO.70612 167.64 0.0 UNIT 4 COM=" 14X14 OFA FUEL ROD - BLANKET REGION" CYLINDER 41 0.218694 15.24 0.0 i

CYLINDER 51 0.437388 15.24 0.0 CYLINDER 61 0.44628 15.24 0.0 CYLINDER 71 0.50800 15.24 0.0 CUBOID 8 1 4P0.70612 15.24 0.0 UNIT 5 COM =" 14X14 OFA GUIDE TUBE - BLANKET REGION" CYLINDER 81 0.62484 15.24 0.0 CYLINDER 31 0.66802 15.24 0.0 CUBOID 8 1 4P0.70612 15.24 0.0 UNIT 6 COM=" 14X14 OFA INSTRUMENT TUBE - BLANKET REGION" CYLINDER 81 0.44704 15.24 0.0 CYLINDER 31 0.50673 15.24 0.0 CUBOID 8 1 4P0.70612 15.24 0.0 UNIT 7 COM=" BOTTOM EDGE OF CS STRONGBACK "

CUBOID 91 24.95550 0.0 0.0

-0.45720 182.88 0.0 UNIT 8 COM=" VERTICAL EDGE OF CS STRONGBACK "

CUBOID 91 0.0

-0.45720 24.13000 -0.45720 182.88 0.0 UNIT 9 COM=" GADOLIMA ABSORBER PANEL "

CUBOID 11 1 0.04445 -0.04445 18.41500 0.0 182.88 0.0 CUBOID 10 1 0.05461 -0.05461 18.41500 0.0 182.88 0.0 GLOBAL UNIT 10 COM=" 14X14 OFA ASSEMBLY IN CASK "

ARRAY 1 0.0 0.0 0.0 REPLICATE 81 20.32000 2.99720 5.08000 38.10000 15.24 0.0 1 HOLE 7 0.0 0.0 0.0 HOLE 8 0.0 0.0 0.0 HOLE 9 -0.85344 0.81280 0.0 l

REPLICATE 91 0.22606 0.0 0.2.2606 0.22606 0.22606 0.0 1 END GEOM READ ARRAY ARA =1 NUX=14 NUY=14 NUZ=2 COM=" 14x14 OFA ASSEMBLY "

Addendum to letter NRC-93M3. dated 9/1/93 September 3.1993 Page 16 of 31 1

l

i i

I i

LOOP 1

1 14 1

1 14 1

1 1

1 j

2 3 12 3 3 12 9 1

1 1

2 3 12 9 6 9 3 1

1 1

2 5 10 5 5 10 5 1

1 1

3 7 7 1 8 8 1 1

1 1

4 1 14 1 1 14 1 2 2 1 5 3 12 3 3 12 9 2 2 1 5 3 12 9 6 9 3 2 2 1 5 5 10 5 5 10 5 2 2 1 i

i 6 7 7 1 8 8 1 2 2 1 END LOOP

[

END ARRAY l

READ BOUNDS l

ALL= SPECULAR l

END BOUNDS l

READ PLOT 7TL=' BOX SLICE THROUGH ASSEMBLY ARRAY - SOLID PELLETS' PIC= BOX NCH = '0.GIHVA *'

XUL= 0.0 YUL= 19.77136 ZUL= 60.0 XLR= 19.77136 YLR= 0.0 ZLR= 60.0 UAX=1.0 VDN =-1.0 NAX=130

~

I END 7TL=' BOX SLICE THROUGH ASSEMBLY ARRAY - ANNULAR PELLETS' PIC= BOX NCH = '0.GIHVA*

• XUL= 0.0 YUL= 19.77136 ZUL= 6.0 XLR= 19.77136 YLR= 0.0 ZLR= 6.0 UAX=1.0 VDN =-1.0 NAX=130 END TTL=' MAT SLICE THROUGH ASSEMBLY ARRAY - SOLID PELLETS'

(

PIC= MAT I

NCH ='0.ZWSGS' XUL= 0.0 YUL= 19.77136 ZUL= 60.0 XLR= 19.77136 YLR= 0.0 ZLR= 60.0 UAX=1.0 VDN =-1.0 NAX=130 t

END 7TL=' MAT SLICE THROUGH ASSEMBLY ARRAY - ANNULAR PELLETS' PIC= MAT NCH = 'O.ZWSGS' Addendum to Lener NRC-93423. dated 9/1/93 September 3,1993 Page 17 of 31

XUL= 0.0 YUL= 19.77136 ZUL= 6.0 XLR= 19.771% YLR= 0.0 ZLR = 6.0 UAX = 1.0 CDN =-1.0 NAX'= 130 END TTL=' BOX SLICE THROUGH CASK MODEL '

PIC= BOX NCH ='0.GIHVA*

• XUL= -2.99720 YUL= 30.15742 ZUL= 60.0 XLR= 40.31742 YLR=-38.32606 ZLR= 60.0 UAX = 1.0 VDN =-1.0 NAX= 130 EhT

'ITL=' MAT SLICE THROUGH CASK MODEL '

PIC= MAT NCH = '0.ZWSGS' XUL= -2.99720 YUL= 30.15742 ZUL= 60.0 XLR= 40.31742 YLR=-38.32606 ZLR= 60.0 UAX = 1.0 VDN =-1.0 NAX =130 END TTL=' BOX SLICE THROUGH GD ABSORBER '

PIC= BOX NCH ='0.GIHVA*'

XUL= -2.99720 YUL= 20.00000 ZUL= 60.0 XLR= 0.65000 YLR= -2.00000 ZI.R= 60.0 UAX = 1.0 VDN=-1.0 NAX=130 END i

'ITL=' MAT SLICE THROUGH GD ABSORBER '

PIC = MAT NCH = '0.ZWSGS' i

XUL= -2.99720 YUL= 20.00000 ZUL= 60.0 XLR= 0.65000 YLR= -2.00000 ZLR= 60.0 UAX = 1.0 VDN =-1.0 NAX=130 ENT PLOT END DATA

/ EOF l

Addendum to Letter NRC-934123. dated 9/1/93 September 3,1993 Page 18 cf 31

)

I TABLE D: KENO CASE 3 CASE 3).

FECTEAU 14X14 OFA SHIPPING CONTAINER OPT MOD 0.02 EXACT MODEL I

READ PARAMETERS l

TME = 6.0 RUN=YES PLT = YES GEN =900 NPG =300 NSK =005 LIB =41 XSl =YES NUB =YES END PARAMETERS READ MIXT SCT=2 MIX = 1

' UO214 OFA PELLET 5.00 W/O (96.5% TD,0% DISH) 192235 0.0011942 192238 0.022404 18016 0.047196 MIX = 2

' ZIRC FUEL ROD CLADDING 240302 0.043326 MIX = 3 l

' H2O AT 0.02 G/CC (REFERENCE 1.0 G/CC H=0.066854, O=0.033427) l 31001 0.00133708 l

38016 0.00066854 MIX = 4

' CARBON STEEL FOR STRONGBACK & SHELL 36012 4.728898E-4 315031 5.807008E-5 316032 6.642906E-5 325055 3.877064E-4 326000 8.420. JE-2 MIX = 5

' GADOLINIA OXIDE ABSORBER (0.02 GM GD203/CM2 @ 0.01016 CM THICKNESS) 48016 9.810529E-3 464152 1.308071E-5 464154 1.373474E-4 464155 9.679722E-4 464156 1.347313E-3 l

464157 1.026835E-3 l

464158 1.622008E-3 464160 1.425792E-3 MIX = 6 Addendum to letter NRC-93-023. dated 9/l/93 September 3.1993 Page 19 of 31

I CARBON STEEL SHEET FOR GD ABSORBER 56012 4.728898E-4 515031 5.807008E-5 516032 6.642906E-5 525055 3.877064E-4 526000 8.420119E-2 i

END MIXT READ GEOM i

UNIT 1 COM='14 OFA FUEL ROD' CYLINDER 1 10.437388 2P31.75 CYLINDER 310.44628 2P31.75 CYLINDER 210.50800 2P31.75 CUBOID 314PO.70612 2P31.75 UNIT 2 COM='14 OFA GT OR IT' CYLINDER 310.62484 2P31.75 CYLINDER 210.66802 2P31.75 CUBOID 314P0.70612 2P31.75 UNIT 3 ARRAY 12R0.0 -31.75 COM=' ASSEMBLY ON STRONG BACK' CUBOID 3124.9555 0.0 22.86 0.0 2P31.75 i

CUBOID 4124.9555.4572 22.86.4572 2P31.75 UNIT 4 COM=' POISON PLAT BETWEEN ASSEMBLY' CUBOID-61.0889 0.018.415 0.0 2P31.75 CUBOID 51.09906.0101618.415 0.0 2P31.75 CUBOID 31.44069 -2.0993122.0472 -1.27 2P31.75 HOLE 8 -2.0993 19.8 0.0 UNIT 5 COM=' REST OF STRONGBACK AND CRADLE' CUBOID 3 1 7.1051 0.5149 12.1851 0.51492P31.75 i

l CUBOID 4 1 7.62 0.0 12.70 0.0 2P31.75 UNIT 6 COM=' CONTAINER FLANGES AND BRACKET' CUBOID 411.285 0.0 22.86 0.0 2P31.75 l

UNIT 7 COM=' SKID ANGLE' CUBOID 3 1 7.62 0.9652 7.62 0.9652 2P31.75

(

CUBOID 4 1 7.62 0.0 7.62 0.0 2P31.75 l

UNIT 8 COM='UNISTRUT CHANNEL ASSEMBLY' l

CUBOID 311.799 0.0 2.24 0.7398 2P31.75 CUBOID 412.539 0.0 2.24 0.0 2P31.75 UNIT 9 COM=' TOP CLAMPING ASSEMBLY' CUBOID 4126.21 0.0 2.1 0.0 2Pl.05 UNIT 10 COM=' SIDE CLAMPING ASSEMBLY' CUBOID 4 1 2.1 0.0 24.23 0.0 2Pl.05 GLOBAL UNIT 14 ARRAY 2 2RO.0 -31.75 CUBOID 3144.73448 0.0 25.68448 -37.6428 2P31.75 HOLE 528.0-13.00.0 l

Addendum to Leuer NRC-934)23. dated 9/1/93 September 3.1993 Page 20 of 31

i l

l HOLE 643.0-15.00.0 l

HOLE 735.0-37.00.0 HOLE 9 3.00 23.4 0.0 HOLE 10 29.21 1.27 0.0 i

CUBOID 4144.96058 0.0 25.91058 -37.8689 2P31.75 END GEOM READ ARRAY ARA = 1 NUX = 14 NUY = 14 NUZ=1 FILL 30R12 2R12 2R12 2R12 20R12 4R12 6R12 8R12 8R12 23R12 8R12 6R12 4R12 20R12 2R12 2R12 2R12 30R1 END FILL

(

ARA =2 NUX=2 NUY=1 NUZ=1 FILL 4 3 END FILL END ARRAY READ BOUN l

ALL= SPEC END BOUN I

READ PLOT l

PIC= UNIT PLT =YES I

TTL='X-Y SLICE THRU Z=0 TO CONTAINER BOUND FOR 132X132 PRINT' XUL =0.0 YUL=32.26058 ZUL=0.0 I

XLR=44.96058 YLR =-37.8689 ZLR = 0.0 UAX = 1.0 VDN =-1.0 NAX=114 NDN=131 END TTL='X-Y SLICE THRU Z=0 TO CONTAINER. BOUND FOR 132X132 PRINT' i

PIC= MAT NCH = '... ". '

l XUL = 0.0 YUL=32.26058 ZUL= 0.0 XLR =44.96058 YLR =-37.8689 ZLR = 0.0 UAX = 1.0 VDN = -1.0 NAX=114 NDN=131 END END PLOT END DATA END

/ EOF i

i 1

+

t i

Addendum to letter NRC-93-023. dated 9/1/93 September 3.1993 Page 21 of 31

i TABLE E: KENO CASE 4 CASE 4).

TITLE-CASK 14XOFA 5.0 W/O 0.02 G/CC ANNULAR PELLET l

l READ PARAMETERS f

TME= 6.0 RUN=YES PLT =YES l

GEN =900 NPG =303 NSK=005 LIB =41 i

XSl =YES NUB =YES END PARAMETERS l

READ MIXT SCT=2 l

MIX = 1

• SOLID UO2 PELLET 5.00 W/O (96.5% TD,0% DISH) 192235 0.0011942 192238 0.022404 18016 0.047196 MIX = 2 l

' H2O AT 1.00 G/CC IN SOLID PELLET GAP

~31001 0.066854 38016 0.033427 l

MIX = 3 l

' SOLID ZIRC FUEL ROD CLADDING 240302 0.043326 MIX = 4

' H2O AT 1.00 G/CC IN BLANKET FUEL ANNULUS 31001 0.066854 38016 0.033427 MIX = 5

' ANNULAR UO2 PELLET 5.00 W/O (96.5% TD) 192235 0.0011942 i

192238 0.022404 18016 0.047196 MIX = 6

' H2O AT 1.00 G/CC IN ANNULAR PELLET GAP 31001 0.066854 38016 0.033427 MIX = 7

' ANNULAR ZIRC FUEL ROD CLADDING 240302 0.043326 MIX = 8 Addendumto Letter NRC-93423. dated 9/1/93 September 3.1993 Page 22 of 31 l

l

' H2O AT 0.02 G/CC 1

31001 0.00133708 38016 0.00066854 MIX = 9

• CARBON STEEL FOR STRONGBACK & SHELL l

36012 4.728898E-4 315031 5.807008E-5 316032 6.642906E-5 325055 3.877064E-4 326000 8.420119E-2 MIX = 10

' GADOLINIA OXIDE ABSORBER (0.02 GM GD203/CM2 @ 0.01016 CM THICKNESS) 48016 9.'o 0529E-3 464152 1.308071E-5 464154 1.373474E-4 464155 9.679722E-4 464156 1.347313E-3 464157 1.026835E-3 t

464158 1.622008E-3 464160 1.425792E-3 MIX = 11

' CARBON STEEL SHEET FOR GD ABSORBER 56012 4.728898E-4 515031 5.807008E-5 t

516032 6.642906E-5 525055 3.877064E-4 526000 8.420119E-2 END MIXT READ GEOMETRY UNIT 1 COM=" 14X14 OFA FUEL ROD - ENRICHED REGION" CYLINDER 1 1 0.437388 167.64 0.0 CYLINDER 21 0.44628 167.64 0.0 CYLINDER 31 0.50800 167.64 0.0 CUBOID 8 1 4P0.70612 167.64 0.0 UNIT 2 l

COM=" 14X14 OFA GUIDE TUBE - ENRICHED REGION" CYLINDER 81 0.62484 167.64 0.0 CYLINDER 31 0.66802 167.64 0.0 CUBOID 8 1 4P0.70612 167.64 0.0 UNIT 3 l

COM=" 14X14 OFA INSTRUMENT TUBE - ENRICHED REGION" Addendum to letter NRC-93-023, dated 9/1/93 September 3.1993 Page 23 of 31

- l

CYLINDER 81 0.44704 167.64 0.0

)

CYLINDER 31 0.50673 167.64 0.0 CUBOID 8 1 4PO.70612 167.64 0.0 UNIT 4 COM=" 14X14 OFA FUEL ROD - BLANKET REGION" CYLINDER 4 1 0.218694 15.24 0.0 CYLINDER 51 0.437388 15.24 0.0 CYLINDER 61 0.44628 15.24 0.0 CYLINDER 71 0.50800 15.24 0.0 CUBOID 8 1 4PO.70612 15.24 0.0 UNIT 5 COM=" 14X14 OFA GUIDE TUBE - BLANKET REGION" CYLINDER 81 0.62484 15.24 0.0 CYLINDER 31 0.66802 15.24 0.0 CUBOID 8 1 4P0.70612 15.24 0.0 UNIT 6 i

COM=" 14X14 OFA INSTRUMENT TUBE - BLANKET REGION" CYLINDER 81 0.44704 15.24 0.0 CYLINDER 31 0.50673 15.24 0.0 CUBOID 8 1 4P0.70612 15.24 0.0 UNIT 7 COM=" BOTTOM EDGE OF CS STRONGBACK "

CUBOID 91 24.95550 0.0 0.0

-0.45720 182.88 0.0 UNIT 8 COM=" VERTICAL EDGE OF CS STRONGBACK "

CUBOID 91 0.0

-0.45720 24.13000 -0.45720 182.88 0.0 UNIT 9 COM=" GADOLINIA ABSORBER PANEL "

CUBOID 11 1 0.04445 -0.04445 18.41500 0.0 182.88 0.0 CUBOID 10 1 0.05461 -0.03461 18.41500 0.0 182.88 0.0 GLOBAL UNIT 10 COM=" 14X14 OFA ASSEMBLY IN CASK "

ARRAY 1 0.0 0.0 0.0 REPLICATE 81 20.32000 2.99720 5.08000 38.10000 15.24 0.0 1 HOLE 7 0.0 0.0 0.0 t

HOLE 8 0.0 0.0 0.0 HOLE 9 -0.85344 0.81280 0.0 REPLICATE 91 0.22606 0.0 0.22606 0.22606 0.22606 0.0 1 END GEOM READ ARRAY ARA =1 NUX=14 NUY=14 NUZ=2 COM=" 14x14 OFA ASSEMBLY "

Addendum to letter NRC-93-023. dated 9/1/93 Septeml>cr 3.1993 Page 24 of 31 i

l

l l

LOOP 1

1 14 1

1 14 1

1 1

1 l

2 3 12 3 3 12 9 1

1 1

2 3 12 9 6 9 3 1

1 1

l 2 5 10 5 5 10 5 1

1 1

3 7 7 1 8 8

.1 1

1 1

l 4 1 14 1

1 14 1 2 2 1 5 3 12 3 3 12 9 2 2 1 l

5 3 12 9 6 9 3 2 2 1 5 5 10 5 5 10 5 2 2 1 i

6 7 7 1 8 8 1 2 2 1 l

END LOOP END ARRAY 1

READ BOUNDS

^

ALL= SPECULAR END BOUNDS r

l READ PLOT TTL=' BOX SLICE THROUGH ASSEMBLY ARRAY - SOLID PELLETS' I

l PIC= BOX l

NCH = '0.GIHVA*'

XUL= 0.0 YUL= 19.77136 ZUL= 60.0 XLR= 19.77136 YLR= 0.0 ZLR= 60.0 UAX=1.0 VDN =-1.0 NAX =130 l

END TTL=' BOX SLICE THROUGH ASSEMBLY ARRAY - ANNULAR PELLETS' PIC = BOX NCH = 'O.GIHVA*'

XUL= 0.0 YUL= 19.77136 ZUL= 6.0 XLR= 19.77136 YLR= 0.0 ZLR= 6.0 UAX = 1.0 VDN =-1.0 NAX= 130 END j

TTL=' MAT SLICE THROUGH ASSEMBLY ARRAY - SOLID PELLETS' PIC= MAT NCH = '0.ZWSGS' l

XUL= 0.0 YUL= 19.77136 ZUL= 60.0 XLR= 19.77136 YLR= 0.0 ZLR= 60.0 UAX = 1.0 VDN =-1.0 NAX=130 l

END TTL=' MAT SLICE THROUGH ASSEMBLY ARRAY - ANNULAR PELLETS' l

PIC = MAT.

NCH = '0.ZWSGS' l

Addendum to tener NRC-93-023, dated 9/1/93 f

September 3,1993 Page 25 of 31 i

i XUL= 0.0 YUL= 19.77136 ZUL= 6.0 XLR= 19.77136 YLR= 0.0 ZLR= 6.0 UAX = 1.0 VDN =-1.0 NAX =130 END TTL=' BOX SLICE THROUGH CASK MODEL '

PIC= BOX NCH = 'O.GIHVA*

• l XUL= -2.99720 YUL= 30.15742 ZUL= 60.0 XLR= 40.31742 YLR=-38.32606 ZLR= 60.0 UAX = 1.0 VDN =- 1.0 NAX = 130 END i

TTL=' MAT SLICE THROUGH CASK MODEL '

PIC= MAT NCH = '0.ZWSGS' i

XUL= -2.99720 YUL= 30.15742 ZUL= 60.0 XLR= 40.31742 YLR=-38.32606 ZLR= 60.0 UAX = 1.0 VDN =-1.0 NAX = 130 END TTL=' BOX SLICE THROUGH GD ABSORBER '

PIC = BOX NCH = '0.GIHVA*

• XUL= -2.99720 YUL= 20.00000 ZUL= 60.0 XLR= 0.65000 YLR= -2.00000 ZLR= 60.0 UAX = 1.0 VDN =-1.0 NAX= 130 END TTL=' MAT SLICE THROUGH GD ABSORBER '

PIC = MAT NCH ='0.ZWSGS' XUL= -2.99720 YUL= 20.00000 ZUL= 60.0 XLR= 0.65000 YLR= -2.00000 ZLR= 60.0 UAX = 1.0 VDN = -1.0 NAX= 130 END PLOT I

l END DATA

/ EOF k

i i

Addendum to Letter NRC-93423. dated 9/1/93 September 3.1993 Page 26 of 31 j

i

r l

TABLE F: KENO CASE 5 i

CASE 5).

TITLE-CASK 14XOFA 5.0 W/O 0.02 G/CC ANNULAR PELLET READ PARAMETERS TME = 6.0 RUN= YES PLT = YES GEN =900 NPG =307 NSK =005 LIB =41 XSl = YES NUB = YES i

END PARAMETERS READ MIXT SCT=2 MIX = 1

' SOLID UO2 PELLET 5.00 W/O (96.5% TD,0% DISH) i 192235 0.0011942 192238 0.022404 18016 0.047196 MIX = 2

' H2O AT 1.00 G/CC IN SOLID PELLET GAP 31001 0.066854 38016 0.033427 MIX = 3

' SOLID ZIRC FUEL ROD CLADDING 240302 0.043326 MIX = 4 I

' H2O AT 1.00 G/CC IN BLANKET FUEL ANNULUS 31001 0.066854 38016 0.033427 MIX = 5 t

' ANNUuAR UO2 PELLET 5.00 W/O (96.5% TD) 192235 0.0011942 192238 0.022404 18016 0.047196 MIX = 6

' H2O AT 1.00 G/CC IN ANNULAR PELLET GAP 31001 0.066854 l

38016 0.033427 MIX = 7

' ANNULAR ZIRC FUEL ROD CLADDING 240302 0.043326 MIX = 8 j

l Addendum to htter NRC-93-023, dated 9/1/93 September 3,1993 Page 27 of 31 l

t

I l

)

I l

i

' H2O AT 0.02 G/CC j

31001 0.00133708 l

38016 0.00066854 MIX = 9

• CARBON STEEL FOR STRONGBACK & SHELL i

36012 4.728898E-4 i

315031 5.807008E-5 316032 6.642906E-5

[

325055 3.877064E-4 i

326000 8.420119E-2 MIX = 10

• GADOLINIA OXIDE ABSORBER (0.02 GM GD203/CM2 @ 0.01016 CM THICKNESS) l l

48016 9.810529E-3 l

464152 1.308071E-5 464154 1,373474E-4 l

464155 9.679722E-4 l

l 464156 1.347313E-3 l

464157 1.026835E-3 i

464158 1.622008E-3 i

464160 1.425792E-3 f

MIX = 11

' CARBON STEEL SHEET FOR GD ABSORBER I

56012 4.728898E-4 515031 5.807008E-5 516032 6.642906E-5

~

525055 3.877064E-4 526000 8.420119E-2 END MIXT i

READ GEOMETRY UNIT 1 COM=" 14X14 OFA FUEL ROD - ENRICHED REGION" CYLINDER 11 0.437388 167.64 0.0 i

CYLINDER 21 0.44628 167.64 0.0 CYLINDER 31 0.50800 167.64 0.0 CUBOID 8 1 4PO.70612 167.64 0.0

)

UNIT 2 COM=" 14X14 OFA GUIDE TUBE - ENRICHED REGION" CYLINDER 81 0.62484 167.64 0.0 CYLINDER 31 0.66802 167.64 0.0 CUBOID 8 1 4PO.70612 167.64 0.0 UNIT 3 COM=" 14X14 OFA INSTRUMENT TUBE - ENRICHED REGION" Addendum to letter NRC-93-023, dated 9/1/93 i

September 3.1993 Page 28 of 31

-e, v

CYLINDER 81 0.44704 167.64 0.0 CYLINDER 31 0.50673 167.64 0.0 CUBOID 8 1 4P0.70612 167.64 0.0 UNIT 4 COM =" 14X14 OFA FUEL ROD - ENRICHED REGION - REPLACES ANNULAR BLNKT" CYLINDER 1 1 0.437388 15.24 0.0 CYLINDER 21 0.44628 15.24 0.0 I

CYLINDER 31 0.50800 15.24 0.0 i

i CUBOID 8 1 4P0.70612 15.24 0.0 UNIT 5 COM=" 14X14 OFA GUIDE TUBE - BLANKET REGION" CYLINDER 81 0.62484 15.24 0.0 CYLINDER 31 0.66802 15.24 0.0 1

CUBOID 8 1 4PO.70612 15.24 0.0 UNIT 6 l

COM=" 14X14 OFA INSTRUMENT TUBE - BLANKET REGION" CYLINDER 81 0.44704 15.24 0.0 CYLIhTER 31 0.50673 15.24 0.0 l

CUBOID 8 1 4PO.70612 15.24 0.0 UNIT 7 l

COM=" BOTTOM EDGE OF CS STRONGBACK "

l CUBOID 91 24.95550 0.0 0.0

-0.45720 182.88 0.0 l

UNIT 8 l

COM=" VERTICAL EDGE OF CS STRONGBACK "

CUBOID 91 0.0

-0.45720 24.13000 -0.45720 182.88 0.0 l

UNIT 9 COM=" GADOLINIA ABSORBER PANEL "

CUBOID 11 1 0.04445 -0.04445 18.41500 0.0 182.88 0.0 CUBOID 10 1 0.05461 -0.05461 18.41500 0.0 182.88 0.0 GLOBAL UNIT 10 COM=" 14X14 OFA ASSEMBLY IN CASK "

ARRAYl 0.0 0.0 0.0 REPLICATE 81 20.32000 2.99720 5.08000 38.10000 15.24 0.0 1 HOLE 7 0.0 0.0 0.0 HOLE 8 0.0 0.0 0.0 HOLE 9 -0.85344 0.81280 0.0 l

REPLICATE 91 0.22606 0.0 0.22606 0.22606 0.22606 0.0 1 END GEOM READ ARRAY ARA =1 NUX=14 NUY=14 NUZ=2 COM=" 14x14 OFA ASSEMBLY "

LOOP Addendum to let:ct NRC-93-023 dated 9/1/93 Septen6er 3.1993 Page 29 of 31

1 1 14 1

1 14 1

1 1

1 2 3 12 3 3 12 9 1

1 1

2 3 12 9 6 9 3 1

1 1

2 5 10 5 5 10 5 1

1 1

3 7 7 1 8 8 1

1 1

1 4 1 14 1 1 14 1

2 2 1

5 3 12 3 3 12 9 2 2 1

5 3 12 9 6 9 3 2 2 1 5 5 10 5 5 10 5 2 2 1 6 7 7 1 8 8 1

2 2 1 END LOOP END ARRAY READ BOUNDS ALL= SPECULAR END BOUNDS READ PLOT TTL=' BOX SLICE THROUGH ASSEMBLY ARRAY - SOLID PELLETS' PIC = BOX NCH = 'O.GIHVA *'

XUL= 0.0 YUL= 19.77136 ZUL= 60.0 XLR= 19.77136 YLR= 0.0 ZLR= 60.0 UAX = 1.0 VDN =-1.0 NAX = 130 END TTL=' BOX SLICE THROUGH ASSEMBLY ARRAY - ANNULAR PELLETS' PIC= BOX NCH = '0.GIHVA**

XUL= 0.0 YUL= 19.77136 ZUL= 6.0 XLR= 19.77136 YLR= 0.0 ZLR= 6.0 UAX = 1.0 VDN =-1.0 NAX=130 END TTL=' MAT SLICE THROUGH ASSEMBLY ARRAY - SOLID PELLETS' PIC = MAT NCH = 'O.ZWSGS' XUL= 0.0 YUL= 19.77136 ZUL= 60.0 XLR= 19.77136 YLR= 0.0 ZLR= 60.0 l

UAX=I.0 VDN =-1.0 NAX=130 l

END TTL=' MAT SLICE THROUGH ASSEMBLY ARRAY - ANNULAR PELLETS' PIC= MAT NCH = 'O.ZWSGS' XUL= 0.0 YUL= 19.77136 ZUL= 6.0 Addendum to Letter NRC-93-023. dated 9/1/93 September 3.1993 Page 30 of 31 i

i

XLR= 19.77136 YLR= 0.0 ZLR = 6.0 UAX = 1.0 VDN = -1.0 NAX = 130 l

END 7TL=' BOX SLICE THROUGH CASK MODEL '

PIC= BOX NCH ='0.GIHVA *'

XUL= -2.99720 YUL= 30.15742 ZUL= 60.0 XLR= 40.31742 YLR=-38.32606 ZLR= 60.0 UAX = 1.0 VDN =-1.0 NAX = 130 END

'ITL=' MAT SLICE THROUGH CASK MODEL '

PIC = MAT NCH = '0.ZWSGS' XUL= -2.99720 YUL= 30.15742 ZUL= 60.0 XLR= 40.31742 YLR=-38.32606 ZLR= 60.0 UAX = 1.0 VDN = -1.0 NAX = 130 i

END TTL=' BOX SLICE THROUGH GD ABSORBER '

PIC = BOX NCH = 'O.GIHVA*

• XUL= -2.99720 YUL= 20.00000 ZUL= 60.0 XLR= 0.65000 YLR= -2.00000 ZLR= 60.0 UAX = 1.0 VDN =-1.0 NAX = 130 END TTL=' MAT SLICE THROUGH GD ABSORBER '

PIC = MAT i

NCH = '0.ZWSGS' XUL= -2.99720 YUL= 20.00000 ZUL= 60.0 XLR= 0.65000 YLR= -2.00000 ZLR= 60.0 UAX=1.0 VDN =-1.0 NAX= 130 END PLOT END DATA

/E0F i

i Addendum to letter NRC-93-023, dated 9/1/93 e

September 3.1993 Page 31 of 31

-