INTERNAL · INTERNAL LETTER

INTERNAL LETTER

DATE October 26, 1967<A Division of ! urt&Y rnec'ielaya '4L'iatiwt, iac.

TO

D/737 S 066A ORISSFROAd .m No Ts haeeheADDRESS D/779.21 C 00R9-

PHONE 2726u

sum a . M ihraticn of New Cz-137 Source for the Instrumen tCalibration Faaoilit r B dg~ 029, Santa Susana

On October 17„ 1967, the L ndsve k R-maters Model L-64 was used tQi rato the new G O-137 Source i n B1dga5 029, Sant a snsaxna., WCa c

several a ua~e n s were taken, it became apparent that somothiawas wx ag with the ins° ruaenta<, On October 20, !967, the iat r ;caskUwAV en Mo&i 70, wac used to verify that We Laido °er justramenrtWES, :Ln dy, bad. The L ' nda °irC'l. k. M'Z,-i •,m to will be returned to the m inn-,

ffur repair, It i anticipated that , repair should be a°auemcm.

0; Gwh r 19, 1967, the 11iw taarIee",ier . "a Pra -Cex, irno.s h r yla a a ari .ga : .w ay°L T'F ;l^ia,f:19 0N 22, 226, reiaa oe and aped to calibrate p "r LaC UiLli T '~ :i,'"~~lABF n . % J"'~~~~~^ .4sa e~;'7 Y~ ;.ito showed the duue into W /hr) to be n .,[

E1,t ~6~a~ ;) to n lid 3.05 at 113 am from the source . h h i. ^

be A W au r his Qnhtwr with the lead Welding in plate . It ieas,u;t°Ihi` teat. that t& calibration etll pie; ocorpl ets by ' orambe 10

, TochaaucheLead EngineerEnd, . .bion, Safety r' onttio .s,Radiation Safety Unit

v °It lARTI

do ; t1 eo andd k-Q L a WineT. Reed.

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R-.L L.F. O .:~:1'~. Model 70, WM S used to verify h;;.'r. the L & .ndm -, _,n «o,....,> a:M::L' .G33~twas, Indeed, bad The L r,',, n :s e'v enk .:_' ne s'Q :°e' will be rQt ':3anmad to t aA^:,° mi u-

:7cip air, i is ant ., .iI at („''r'.a that m`7_s .i i. ht;bvi.a'.k .; i,aa QOM~:,V d"Al' i4~ 7 u , 70.°, -,. R 3 2 ,~ 96aF „

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aanticipated that the calibration ll I be . oa ` ete b; Tbvember 10, s 1967 .

F.

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