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., ;RCUIXEO
AT lltE
N.4TIONAL
ARcHIVES
Iml!3iMIm”
m BE M
ADMINISrMTI~ MARKIYQ
‘“0” ‘20’” ‘“”’’”ngp
Date..1 -z:-w _&QR_MRs,
Page 2 - m.
5
C. II* &ler -Augwt
11, 1
The Laboratory~tillrequireat the sites selected,
the erection
of appropriate
towerswhich are now on hand. This will requireactive
linieonwitn the 5!echnicsl
Directorand must be accomplished
to his speciflc~ions
desirableto set up a contractunderthe
6nd satisfaction.It is l)elieved
AtomicEner~”Commission,
and underthe directsupervision
of an Engineering
Directorto =complitithis constructlon~e as wall as otheritemsof
construction
euchas inetrumantehelters,cameratowers,subnarinecables,
and other aqtipentwhich the technical
yrogrcmof the operationmay require.
It Is probablethat the towerswill need to be providedwith stabilized
macadamarene at the bases.
6
The LOS A3smosLaboratoryendthe TechnicalDirectortillP r~ere
the specifications
requiredof a firingcenter. At tie>resentt~e$ it
is proposedthat thisfiringcenterbe locatedupcn ab=ge ~~
ZW be
of this barge
movedinto an appropriate
locationat will: The modification
WI1lpresumablyhave to be accomplished
by someNavalBase actitity.
7
The Loe AlamoaLaboratorywill conduct,with its O- personnd,
radiochsmicalaaalyseeoftiefissionproductto dstemlnethe nucle=
efficiency
of eachdetonatedwes@on. It will require,howsver~a collection
of sempleein a mannercompletdy similarto thatemployedin the Croesroeds
Operat%onutilizingdroneplanes. It is a matterof indifference
to the
Laboratorywhetherthe droneplanesemployedareB-171a or P@~s, although
it znzetbe pointedout that statistically
a higherpercentageof sampleswas
obkined from theB-171sthan fromthe Y63’1sin the Crossroads operation.
In ~
event,specif%csmxmgazsntsmastbe made with the a~roprlate
orgeni
zationthatthisoperationcanb e conduct
ad to the satiuf actionof
the l!echnical
Director. It shouldbe ezrpbai
~eilthat thisparticulsx
measurementie of paramountimportanceand that sufficient&onae mastbe
employedsc that at leaet threesatisfactory
emzplescanb e guaranteed.
It is our suggestion
that six to eightdronesbe mployed for thle
wmse
in oral=to acccmt for a certain possibility
of f tiUxre, The
Laboratorywillaleo requiret rsnsportation
arrangements
for the samples
obtainedby @ee droneplanesback to theUnitedStateeta arriveat
Santa~e, ZTSU)kxicc,weatherpermitting,
within36 houxs of each
datonat%oti
The Los A.lames
Laboratorypropoeeeto conductoertainnuclear
erperimsnte
such as a determination
of thef aat neutronIntsneityand
compar~lemeasarsmants
which canb e carriedoutwith the use of self reccrdi~
thresholddetectorsg
9
For anotherestimateof the efficiencyof detonation,it is
desirablethathigh speedmotionpicturesat @prcfimately1000franeeper
secondwith 35 mm camerasbe takenof the smpending
ball of fire. It is
proposedthatthisbe done with t~ camerasat each of two locations.The
properphotographic
coveragewill aleor squirerecordphctogr~hy aud
conventional
speedmotionpictusephotogr~~ of the detonation.The Los
AlamcsLaboratorytill be unableto supplya Phctogrsphic
staff adequate
to thie operationand fromthe excsllentrezulteobtd nad.by the Army Air
Forceephotographic
umits at Biklnl,it is most stronglysuggestedthat
arrangsamnts
be made with thieorganization
to supplythe TechnicalDirector
with officers,ma% -d e@Pent to SCCOrIPli+
the tewcal @@%%r~~c
coverageof the tests.
w