ML20125D404

Forwards Amend 2,Change 4,authorizing Receipt,Possession & Use of 32,000 Ci Antimony to Be Used in Four antimony- Beryllium Neutron Sources.Fr Notice & Hazards Analysis Encl

ML20125D404
Person / Time
Site:	05000130
Issue date:	03/04/1965
From:	Doan R US ATOMIC ENERGY COMMISSION (AEC)
To:	Hill H NORTHERN STATES POWER CO.
Shared Package
ML20125A538	List: ML20125D123 ML20125D151 ML20125D175 ML20125D208 ML20125D224 ML20125D241 ML20125D271 ML20125D310 ML20125D324 ML20125D333 ML20125D352 ML20125D364 ML20125D385 ML20125D404 ML20125D418 ML20125D526 ML20125D534 ML20125D541 ML20125D545 ML20125D551 ML20125D554 ML20125D559 ML20125D561 ML20125D563 ML20125D567 ML20125D571 ML20125D582 ML20125D587 ML20125D595 ML20125D618 ML20125D671 ML20125D691 ML20125D706 ML20125D718 ML20125D736 ML20125D760 ML20125D771 ML20125D787 ML20125D800
References
FOIA-85-54 NUDOCS 8506120346
Download: ML20125D404 (2)

Text

. (

• 1CENCE AUTHORITY FILE COPI UNITED STATES ,.gq'"'

9 ATOMIC ENERGY COMMISSION c' '

• )

l N

• 1 WASHINGTON. D.C. 20545  ;.

.s e m any amn ro.

IJAft 41965 k j Docket No. 50-130 o 9y \*2 M

wDP i

Northern States Power Company -

Change No. 4 15 South rifth Stmet '

. Minneapolis .2, . Minnesota Attention: Mr. Hibbert Hill Vice P msident - Engineering Centlement Transmitted herewith is Amendment No. 2 to Provisional Operating License No.,DPK-11. The amendment, in accordance with the application / dated February 4,1965, authorizes receipt, possession and use of 32,000 curies of antimony to be used in four antimony-beryllium neutron sources.

( Also enclosed is a copy of a Notice of Issuance of racility License Amendeent which has been submitted to the Office of the rederal Register for publication, and a copy of the related Hazards Analysis.

In order to enable you to operate the Pathfinder macter with up to four antimony-beryllium sources, Change No. 4 to the Technical Specifications of Provisional Operating License No. DPR-11 also is hereby authorized.

On the basis of the infomation submitted in support themof, we have concluded that change No. 4 does not pasent significant hasards consid-erations not described or implicit in the hazards summary report, and that them is masonable assurance that the health and safety of the public will not be endangered.

In view of the fomgoing, Section 5.5.2 and the first paragraph of Section 7.5.1.5 of.the Technical Specifications am hemby changed to read as follows:

"5.5.2 Operating Source l Type Antimony-beryllium 1 Quantity Up to 4 Location Superhgater Minimum Initial St M ngth 5 x 10 neutrons /sec, each A. Physical Description The beryllium annulus shall be part of the inner insu-latint .ubas of the superheater. The antimony rods 0506120346 050214 6, PDH FOIA PAY 05-54 PDH l

.', , (

Northern States Power Company MAR 41965 i

shall be located in the center of the beryllium cylinder. The dimension of the assembly shall be as follows:

Total Length of Insulating Tubes Inches 194 11/32 Insulating Tube 0.D. , Inches one Length of Bery111um Annulus Inches 73 3/8"

" 7. 5 .1. 5 Insertion of Reactor' Source 'and ' Refueling Test Paparatory to further testing, the antimony-beryllium reactor source (s) shall be loaded in the superheater and the plutonium-beryllium sources removed. The n actor vessel shall be completely filled including the super-heater steam passages during this operation. Reference core criticality shall be repeated to correlate the regular instrumentation indication to known conditions."

Sincerely yours, {

Orig!nal Signed by l 4

R.L.Doan R. L. Doan, Director  !

Division of Reactor Licensing Enclosuns:

1. Federal Register Notice

2. Amendment No. 2 to License EPR-11

3. AEC Hazards Analysis ,

i I

i