ML20133H329
| ML20133H329 | |
| Person / Time | |
|---|---|
| Site: | 07000036 |
| Issue date: | 03/02/1960 |
| From: | Swallow L MALLINCKRODT, INC. |
| To: | Delaney J US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20133G976 | List:
|
| References | |
| FOIA-96-343 NUDOCS 9701170139 | |
| Download: ML20133H329 (11) | |
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M ALLIN CK RO DT CENTR AL 1-8980 NUCLEAR S AINT LOUIS 7. MISSOURI.
U.S.A.
. CO R PO R ATIO N P!. ANT liEMATITE. MISSOURI March 2, 1960-s
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Mr. J. C. Delaney Licensing Eranch gi'- c'.j/
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Chief, Nuclear Materials Section j
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SUBJECT:
Speciel nuclear Material Ng, License No. SNM-33
Dear Mr. Delaney:
On February 2,1959, we asked for a revision of our SNM-33 licenso to include the shipping container shown in the at'tached sketches numbered 614).8 and 6574 This was denied 1
by your letter of March 11, 1959.
Please reconsider our request for extension of our SNM-33 license to include this shipping container for LTL, LCL, railway express, air freight or air express shipments of uranium compounds, solutions, and metal of any enrichment and moderation i
subject to the fo11owin6 considerations and safety limitations.
The container shown on the attached sketches is made up of aluminum and is of all welded construction.
The lid on the center tube, in which the material is packed, is bolted in place with a gasket to prevent water in1'pakage.
In addition, to fulfill Bureau of Explosive requirbments, the outside frame will be covered with aluminum sheet or grill to prevent other containers from telescoping with this container.
The material to be shipped will be packaged in tin cans or polyethylene bottles and sealed before being packed in the omge.
If tin cans are used, a polyethylene bag will be used as a liner.
Maximum inside dimensions of the cans or bottles will be:
Diameter gn, neight 11 5".
p 4
Vermiculite will be packed around the bottle or can to
'. hold it firmly ip' place.
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97@1170139.970114' O F' N Uo LE AR FUELS PW4-.FOIA' BT AND 'LE ADING' PRODUoER FLOYD96-343 PDR
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J. C. Deltney Xarch P, 1960 Page Two--
A.
Metal Shipments j
M pments, no more For single mass metal gJ5 will de placed than 11 kilograms of U' in each container (TID-7019, p. 21, Table XI).
For shipments of metal chips, cubes, slugs, '
c.,
container quantities will be determ.
by dividing by 2 3 values obtained from F;.
12, p. F-17, K-1380.
For example, no more uhan (15 5) or 6 73 kilograms of metal pieces hav1dg effective diameters *
~
of.8" will be placed in each container.
This, and quantities determined in like fashion, should be conservatively safe since we will not intentionally be optimizing the orientation nf the pieces for highest 4
reactivity [see K-1380, p. F-16, last i
paragraph and LA-1958 (deleted), Los Alamos Scientific Laboratory Report, 4/56, p. 67 Also, the factor 2 3 is the normal s (ety factor applied to determine s afe ma s se s.
A maximum of 12 containers would be shipped in a single layer.
Stacking will be prevented by adding a pyramid frame to the top of the container as shown in the attached sketch.
In addition, a sign warning against stacking will be stenciled on the outside>
of the shipping container.
The pyramid would be bolted to the top of the framework so as to be removable for loading and unloading.
When the maximum amount of U23b--}1 kilograms-=
is placed in a container, the U237 density per unit shipping container volume is:
11 kilograms a
11
=
1.59 kg/ft3 4
7f r h (W)(1.25)2 (17) 2 wdich is permissible (TID-70194 Table II,
- p. 21).
The effective diameter used will be the diametaf of a circle having a cross sectional
,~ '
area equal to the cross sootional area af.
the individual pieces in a container.
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Mr. J.
C. Delency March 2, 1960 Page Three--
The maximum amount of U235 metal that will be shipped in any one shipment is 132 kilograms, which is also less then the maximum ataount allowed (TID-7019, Table XI, j
- p. 21 ).
B.
Dry Compound and Solution Shipments For compounds and solutions having uranium l
densities no greater than 3 2 grams milliliter, f
the five inch diameter (maximum) container is safe for any quentity of material et any moderation, and any enrichment (see Table IV,
- p. 15, TID-7019).
A maximun of 12 containers would be shipped at any one time.
In this case no restriction would be placed on stacking the containers.
The lugs shown on the sketch of the pyramid would serve to keep the containers nested together in the event they are stacked.
For compounds and solutions having uranium densities greater than 3 2 grams per milliliter, the basis for determining the maximum quantities of material that will be shipped in each container will be the safe volumea ahown in Table II, p,. 13, i
4 TID-7019, ' corrected for uranium densities higher than 3.2 grams per milliliter by the procedure outlined in TID-7019, Section 3 2, paragraph 6b.
A maximum of 12 containers 3l would be shipped in a single layer.
Stacking will be prevented by adding a pyramid frame to the top of the container as shown in the attached sketoh.
In addition, a sign warning against stmoking will be stenciled j
on the outside of the shipping container.
i The pyramid would be bolted to the top of the framework so as to be renovable for loading and unloading the container..
i The criteria listed in TID-7019,. Table II,
- p. 21, will be conformed to in all cases.
It should be noted that the water content of material such as U0 is much less than 1%.
2 Interaction
"' Interaction omloplations we haveIperfomed indicate that -12 ' >
containers,- plus a twin of 12 ~ oontainers,2 areisaf(C ' Table "'
,s I
3I, semamamising. our. calculations, follows.
- A sample ' set ' of' S the calculations is appended to the end of this letter.
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Mr. J. C. Delaney ~
March 2,1960
' Pace Four--
i TABLE I Solid Angle For Solid Angle With Solid Angle With Humber of 12 Container Twin Tvrin Containers Shipment Alongside Above Per Stack (Steradians)
(Steradians)
(Steradiens)
]
1 70 97*
1.25 2
.85 1.25 1.16
{
3 53 1.07
.92 4
53 1.16
- m 5**
56 1.18 6
31
.92 m*
7***
32
.92 For infinite one layer hexagonal array a
Two stacks of 5, one stack of a
- s*
One stack of 7, one stack of 5
- o**
Stack over 10-1/28 high, the height of the highest railway car.
l Based on a K value of.58, which is applicable for a 5" diameter cylinder, (Note 6, Table X, TID-7019), a total interaction angle of 3 2 storadians is allowed.
For a K 4
- value of.65, which is permitted for nuclearly safe mass aguantities (Note 6, Table. I, TID-7019) a solid -angle of 2 5 storadians is allowed.
In th's case of uranium compounds and solutions having a uranium density greater than 3 2 g/co, the nuclear safety control reverts to volume, the K value of.8 is applicable -(Note 6, Table I, TID-7019) and a total solid angle of 1.0. storadians is pennitted..By comparison 4
of the allowable solid angles to the' actual solid angles listed in Table. I above, it can be seen that interaction requirements: see ; met for the shipping conditions described,
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Mr. J. C. Delcne;r Eerch 2, 1960 Ftge Five--
To supplement the above cafety acnsiderations, we will also obtain certification from the carrier that he will not place our shipment on the same vehicle with another shipment of nuclear meterial end that he will not stcre our shipment alongside another nuclear ::hipment at transfer points enroute.
Please let us know if you require additional information in order to process this request.
Respectfully yours, MALLINCKRODT 1 LEAR CORPORATION L. J. Swallow Hematite Plant LJS/jrt oc:
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