DocJax

Declassified record · U.S. Department of Energy

Memorandum to Distribution, Subject: Safety Regulations for Work in Target Vessels Formerly JTF-1 (Crossroads) (DNA-6032F-C.0.27)

Dated
Jan 21, 1947
Document type
Correspondence
Length
13 pages
Open the original scanArchive record OSTI ID 16376938 · public domain

Document text

Machine-read from the scan, so expect some errors. Lines that couldn’t be read are left out.

Page 1

tzget vesselsfor,..er~ of Joint Task Force ,GI,L~q, be cmciucted ful X-r~ bem he is exposedto the hzzc.rdof &,tma@ rcdhtion. radio?.ctive dust he is exposedto the hazard of interrd.r?disized by certiinfe?.turegnot cmuan to the axtemil radbtion haz:rd, Chief wocg these is the f~ct that the injuriousuzt-

Page 2

on the one h .nd..sbeixg coqr?.ble to the h .z-rdpese~:tir,the pro.gru of study be perl.ittedto boud the t .rhetvessels or in be posted LO prevmt ur,-x;hcrizedperstinsi’r~..venturiri~tGo nem.

Page 3

iom, dry or cr%ked skin,warts m other lesicqsm the hinds, additionto c cwplete blood ex itmation, m erythrecyttisediuentfitionrate, n X-rLy of the chest, ..ndcw,pleteurim.lysis. xeference. It i~illbe ude m a full size fiti.i=nd filedwith netted with vork m t.-~~~tvessels will hcve regularLAonthly icti observationswill be used ml-y as a screeningr.xrthodto select those who shouldbe referredto the iedic,dmdvisoryBoard formed in the case of each individual,includingbeta ctiunts. hhen beta counts are twice the prevailingbackgroundor hi@er be done in additim to the beta counts, The urine wil_lb c~efully studiedin case of accidental

Page 4

‘,Advisornay require. All Uood ssr~plesshmld be obtainedunder :skila.rtechni~e and at the ‘dametiue of dsy for each individual, positionof the blwd. Fd.nce a varietyof changesis possiblein the blood pictureafter exposureto radiation,all blood counts of radiologicalsafety and,in the henatolog of radiationsickness. When indicated,and in cases suspectedof over-ex~sure, or when leukocytecounts shouldbe uade and the urine beta counts should tion as shown by phGtograpfiCdGSfilet~‘shouldbe reuovedfrw. lished. In this hzuse there wfil be provideda ncm-contsdnated locker rco.~where workers and othersLZy remve their street clothesand enter a clean rocu where they receivea coqileteoutdown> ad w>th pcckets reuoved cr sewedup; canvas or rubber 9 ‘gloves,dependbg uhcn type Gf work; stcut shoesor rubber boots vided; and a coubat gas r.ask,rescuebrezthinbapparatus,or pOEual &cing aboard a target vessel will m additionbe suppliedwith

Page 5

-yavyias~e, and providedupon leavingthe changehouse. LO .lngtobacco,gum or any edible-t eriel shall be carriedwhile er of each work party to s,iakecertainthat nG one is pertitted aboardwho has w wound on his hands or is othemcisedisablsci. that would be experiencedin deconta.,inatin~such sxticles. and gloves cf all personnelwill be pl.ced in a suitablecGntainer on the duck near the g~nswayfcr sinkin~at sea. Mter the ~ hours will be coliectedmid launderedseparately. other clothing is routinelylaunderedfi the ‘!ch~gehuusei’laundry, the nails will be providedwhich are separatefrom the ehmers. After Lross dirt, and cmtaination if present,are re~cwtiafroi., the hands by repeztedscrubb-ingwith soap end water, the workers will proc~edto the showercnd wash the body, repes,tedlysoapin~ CImls entire body hss been sufficientlyclemed, he is Periditted to dress in his streetclothing.

Page 6

M suggestedthzt, in order to avoid euch conttination’ofthe sidered thzt the waste water mey be SJlowedtc arain tito a hmbor frcm such a floating.I!changehcnise”with pwfect safety. A I&hter so equippedvould have the further &v-age in thct it issued beforethe individualleaves the “ch~ge housetlnwe and filn badge nub+ ad date ad hour recorded. Grtierlyreports are essentialad will be kepk, These will be delivered”to the custody of the photographicdckfi~et~unit ct the end of each working day. The b;dges-willbe pm.xcssedthe sue night in the peruittedto reb~..rdthe vessel on the followlngday ordsys only if the tolerancelii.iitof 0.1 R per 8 hour d~ has not been exceeded. of the ~enciltype, or those shilar to a protexi~eter,will be be napped out throu~hthe l;z.st“hot” arezs, These Lnes ihiil on the dticksine it is possiblefor cantainztion to occurwhen snotlvr. Likewiseattentionrsustbe psid to avoiddust clouds

Page 7

The n?JJeof the individualk chcrbeof the boxdin~ or working nonitorwill alwaysbe in ettendmce with e~ch working pcrty. with local Conm:’nder:nd he will be’advisedby liadiolobicd. safety as to conditions. AS @ othtirsituation,if the Ledicd (1) ihi.le -atwork all persmnelt ill rwoveno ptiof theitiCbthing. Wile workingbelow decks it is essenrxsk b= worn, not only to preventthe inhalationof radioactive natefialbut dso in order to provideprotectionag:instnoxious topsidewhile perfom.ingroutinedutits such as so,aeform of fzce r.~skis not worn, gogglestc coverthe eyes wiu be worn to preventforei~ bodiesentcrin~che eyes. This is to to rub eyes. Positivepressureuask or rescu~brezthi~ appar~tus will be requiredfor cny topsidework thp.tdi~urbs my surfzce,

Page 8

kile at work. Only when the personnelnzve been processed & deviie shouldbe teken & a rmiber of cressthrou~out the ship prior to exter,siveoperations. Interpretationscf this hczard will be ;itieby radiGlo&icalMdicol ofliceron basis of down. Sw~bs will not be wrung cut by h.?ndbut JQy hung to dry on the life lines. (q) All workersshall be instructedthat in the

Page 9

Subject.: Safety siegulationsfor work in TargetVessels for= to provid~cleansfor washinghands, WSter and soap will be stored @ each targetvessel to be availablefor such first aid, or aedical attention,as nay be required. The fonaelities of decontaminationwill be deferreduntil such tirieas it can be carried otit without jeopardizingthe generalwelfareof the individu~. ad shmld be worn at all tiues when aboardtarketvessels. It swat be reneaberedthd distanceis the best protectionagainst afor officielpurposeswill be. “: URNNG’t sips will be zttached. Such mticles wiJ.1not be so rej:ovedwill be hcndled by the .lecstpossiblenur.berof persons If it is desiredtc ship any of these roiioactivenateri:ls,they $“., nateriti should . so be carefullynonitored; the use of woodenbed tmcks :.ndpassenhcrvehicles shouldbe wfiided. Truck beds, carts md other ccrriersnay be coveredwith a tcrpaullnor cantective coversncy be rti-useduntil contminztionof or carrieris thrested,at which tiue the portective

Page 10

for safe disposalct sea, after a singleuse. MeWise, mrf~ces af mall boats whichQ.-Jbe used in connectionnith work on the with clearwce of non-t= t vessels. Ses.. All r.!achinexymd equipimt ticludingh~md toils used in tzA.natedwhen this is @ssible. hhen they cannotbe rendered they will be properlysafeguardedorsafe by decontu.i~.-.tim, (0.)Hhile exposureto rdiocctivityrmst always peculiarto d-l.x+~edshipswill exist at the .m.lethe. It is elsevheremd is a doctrinewith which nexrly dl mval personnd

Page 11

these vekselswill have completeda lon& trip fros.K~l..jclein,their cmpartmnts will h?.vebeen closedfor long periodsof tine, ‘md it adequ~.tetest procedure, Tests first shouldbe rmde in the usus.1 mnner for explosivehazm’ds,then for the presenckof cdequ~te raiio:.ctivecontmim.tiun by the processof ventilation. In ventdust; The ships vmtil~%ion systec!ash?.11not be used to accoup ~sh neededventilation,nor shall vent sets or fan Rotors be st~ted for test purposes. If naturalventilationis insufiicitint M to producethe lowest air velocitiesnecessaq to ch~ge the Ax’ h the conp+rtuent. In eny event psrsomel will go bebn onljy when properlyprctectedby cdequ~tepositivepressurem.sk or rescuebres.thinE~pp=matusend when warkingin pairs, Gne below .md one topside. hhiie the blowerswe operatingall hinds s12d.1 be orderedoff -nd Qww frm the skip, or shallwear the rescue shd.1 not be so plcced on qeck thzt its vibrztionmy cwse dust (c) Anothertyptiof hmard which will be found weakenedby the long trip fron Kwajcleti. Loose rmteriilm-y give wzy when c little adciticmal.weight is plccedupon it. Udders, footifig.Decks LLaybe sliprerytie to water or oil. It must be

Page 12

ventilationduct work; etc., is a very red one. It dll be ~ ed in suc=ti ons hat prevailingwinds will not carry contaminateddust, spr”ay,or othernaterialstoward any inhabited area or roadway. It nust be.careftiy determinedbefore each dust ‘ination of propertycan result. (b.) since a fire in a target vessel would be fraughtwith seriousconsequences, every precautionwill be t~ken to prevent fire. Cuttink,burning,md welding should be kept to a nininu.aand then done only by properlyprotectedqualifiedpersonnelwhen adequatefire fikhting equipment is fiued.iatelyat hand. Adjacentspaces sho@d be exauinedto mke sure that influuable ~aterialsare not storedagainstthe other side of bulkheadssubjected to hint. one is left aboard lockedin a cmpartnent prior to leavingthe Mke all other personnel. Tixy will wear on their person besides open wouncion their hands. The ~r supplj of the diving gear nust be located so M to avoidthe intake of air’contstdtiatedwith radioactivedust. Upon s~facink, divers shell be monitoredand ner. Their diving dress shall be uonitared snd decent.minatec?if are the ccre of the I)chmgehouse!!,the laun~, or any other duty working on the taget vessels. The”’’chcngehouse” and laundry themelves cs well as the r+iologic~ safety laboratoryshti be records being kept of these procedures,

Page 13

it is necesszrythrt organizedindoctrbation be provided. It is to the supervision md executicri of s?ftity ueumres, in?.tesuch irformtion x is requiredto insure th?.till perscnrd done ‘..ttfi.lesin connectim with p