CASK SELECTION

IAEA/USA Interregional course on
Preparations to Ship Spent Nuclear Fuel (1997)

CASK SELECTION

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Contact:
Mr. Keith Brown
Science Applications International Corp.
20201 Century Blvd., Third Floor
Germantown, MD 20874
Tel.: +1-301-353-8343
Fax: +1-301-428-1973
E-mail: [email protected]

IAEA/USA Interregional Training Course

Technical and Administrative Preparations Required for Shipment of Research Reactor Spent Fuel to its Country of Origin

13-24 January 1997
Argonne, IL

L.4.1

CASK SELECTION

Keith Brown

Science Applications International Corporation

Cask Selection Considerations

Compatibility with Fuel Assemblies

Compatibility with Facility

Availability of Cask

Personal Preference

Compatibility with Fuel Assemblies

Physical Dimensions, i.e., Will Assemblies Fit in the Basket?
Fissile Content - Grams of U235, Grams of U, Enrichment
Cool Down Time Requirements
Decay heat Load
Activity and Does Rates

Compatibility with Facility

Crane Capacity
Maximum and Minimum Crane Hook Height
Allowable Floor Loading and Spent Fuel Pool Depth
Physical Size of Doorways
Clearances For Handing The Cask in the Building, Spent Fuel Storage Pool, and/or Hot Cell

Current Cask Inventory

Cask	Owner	Available to Ship MTR	Available to Ship TRIGA	Number Available
TN7/2	NCS	Currently	No	2
GNS-11	NCS	Currently	No	2
IU-04	TN	Currently	Limited	5
LHRL 120	ANSTO	Certifiable	No	1
TN 6-1, 6-3	NCS	Certifiable	Pending	1 Each
GE 2000	GE	Currently	Pending	2
NAC-LWT	NAC	Currently	Pending	5
Transfer System	NAC	Currently	Pending	1

Future Casks Planned

Cask	Owner	Available to Ship MTR	Available to Ship TRIGA	Number Available
GNS (New)	NCS	1997	1997	2
TN (New)	TN	1998	1998	2
NL-1/2	NAC	NRU, NRX Only	No	5
Transfer System	NCS	1997	1997	1

GNS-11

Aluminum MTR Elements	LEU	HEU
Maximum Number of Elements	33	33
Maximum Enrichment	20%	94%
Maximum U	1635 g	335 g
Maximum U235	323 g	268 g
Maximum Decay heat Load	48.5 W	48.5 W
Minimum Cooldown Time	360 Days	1808 Days
Maximum Activity	1 Pbq	1 Pbq

TRIGA

Not Currently Certified for TRIGA Fuel

TN 7/2

Aluminum MTR Elements
Maximum Number of Elements	64
Maximum Enrichment	80-93
Maximum U	363 g
Maximum U235	290 g
Maximum Decay Heat Load	125 W
Minimum Cooling Time	170 Days
Maximum Activity	740 Tbq

TRIGA

Not Currently Certified for TRIGA Fuel

NAC-LWT

Aluminum MTR Elements	HEU	LEU
Maximum Number of Elements	42 (Cropped) 28 (Uncropped)	42 (Cropped) 28 (Uncropped)
Maximum Enrichment	80-94%	20%
Maximum U	377 g	1722 g
Maximum Decay Heat Load	30 w/Element	24 w/Element
Minimum Cooling Time	3 Years	1 Year
Maximum Ave. Burnup	550,000 MWD/MTU	90,490 MDW/MTU

TRIGA

Not Currently Certified for TRIGA Fuel - Certification is
Planned During 1997

IU-04

Aluminum MTR Elements
Maximum Number of Elements	36 in Basket TN 9083 40 in Basket AA 267
Maximum Enrichment	100%
Maximum U235 Concentration	0.73 g/cm
Maximum Decay Heat Load	<132 w/Element (TN 9083) <80 w/Element (AA 267)
Minimal Fuel Core Thickness	0.5 mm
Minimal Cladding Thickness	0.2 mm

IU-04 (Cont'd)

TRIGA
Maximum Number of Elements	Any number that can be plaed in basket TN 9083, tight or not (144?)
Cladding	Aluminum
Composition
Uranium	8%
Zirconium Hydride	92%
Maximal Contents
Uranium Weight	<199 g/Element
Uranium Enrichment	20%

GE 2000

Aluminum MTR Elements	HEU	LEU
Maximum Number of Elements	42 (Chopped) 21 (UnChopped)	42 (Chopped) 21 (Unchopped)
Maximum Enrichment	93.2%	20%
Maximum U235	355 g	355 g
Maximum Burnup	533 GWD/MTU	100 GWD/MTU
Maximum Decay Heat Load	35 W	35 W
Maximum Cooling Time	880 Days	880 Days

TRIGA

Not Currently Certified for TRIGA Fuel - Application has been Submitted for Certification of up to 84 TRIGA Elements, Enriched Between 20% and 93%, with Aluminum, Inconel, or Stainless Steel Cladding