ML20214V600
| ML20214V600 | |
| Person / Time | |
|---|---|
| Site: | 07001209 |
| Issue date: | 02/13/1970 |
| From: | Matthew Smith MCDONNELL DOUGLAS ASTRONAUTICS |
| To: | Chitwood R US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20197E336 | List:
|
| References | |
| 0387, 387, NUDOCS 8610020348 | |
| Download: ML20214V600 (1) | |
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ONNELL DUUGLAD AS NAUTICS COMPANY '
4 WC STENN DWINION Q
Dor'a'd N. 0cuglas Laboratones. 295S George wasMsten way. 9 cht.,nd. W4 99352
( 1a7 v v s, t February 13, 1970 M_MT.,x A55-303-Itllo-MLS-70-17L
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Mr. R. b. Chitwood, Cnief 4
Irraciated Fuela Branch f/x
,p Division of 14aterials Licensing
/,9 f g ' W U. C. Atomic Encrigr Commission Wasuington, D. C. 20$45 heference: by-Froduct Materials Licence Application by Medtronic, Inc.
Dear Mr. Chitwooa:
t Lnclosed are proprietary drawings of the betacel battery for your g
review in connection with the Medtronic license application. A protective cover, part //lD12302-1,on drawing 1L20301-1, was added to the betacel Unttery designed for Nuclex.
This snield provides
' protection for the cerapic to attal ceal and is weldea to the body of the out.cr cacaule. 'In nauition, protection is provicea by an inner tantalte liner.
1ne lear.u,;e pta is long after penetration of tne ceramic liner.
'Jue lh7Ft 0 13 decocited on ciaca and the 3
aanuscien of the ulacc 1 rovias a barrier limiting tne availaole pronetniun to the leartage pata. '1hene layers of containment allow tne veldin; of the outer capsule in a contamination-free electron beam welder in a vacuum.
Inc radiation IcVel emitted by the device la minimited by the design. The contact part //lD12305-1 is tantalum and provides chielding equivalent to the bottom of the container in the" area covered by t.he lower density ceramic to metal seal.
The quality control exercice during the production device will include onear teat,, leak test using helitua, ultraconic tests and celected sect.ioning of representative cumples.
If you have uly question regarding this matter, plence call me at telephone number 509 ')hu hlS1, ext. 276.
Yours very truly, ll.*..'...<>s,+*rl\\
M. L. Smith 861002034 REC 3LIC7h860D11 Donald 11. Douglas Laboratories SNM-1156 PDR MLG:jl Enclosures
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