“ wa
KA” OP AMDICHL kD SUuGtId
. ‘
Y
C.0.27
nashington, D.C,
4AOagog
"THUS
~)-N-F-1-D-£-N-T-I-L-L.-
05000,
2kfe, EN (oS Goffe, P24,aderourgery.
(tan‘aiek
of wedicine
|
bureau
AUN LIST.
Chie1,
Ola
. “Pras
‘To «
“Subject:
pe
# .
a
MAI Fk 47) *
sufety weg gations for work in Target Vessels ior-
werly JTF-I,.
EE
fa)
Reference:
CkU Conf, ltr
Serial O21F602 dated}
om reau/pf fedicine and surgery is ND
Ch”
mie
PMA.
oO
the responsibility of establishing safety reguleticns in matters
‘
FN
anvolving reciological safety, (iteference (2),
2.
In order thet techriical and scientific studies on
target vesseis for.erly of Joint Task Force Olu soy be conducted
without encongering the health of personnel so involved, the
safety regul-tions which follow are ertablished,
3.
If the safety regulations hereby estcblished cre
observed, no personnel wiil be injured os « result of any fon.
of radiologic.1 hazard which ney be present on the target vessels,
he
HDICLUGICan Hidunls.
7
t
{c) Two types of rediole,icel hazard are recognized, i,e, "external radiztion" and "interncl rsaiction",
.
(>)
If an individual stands in front of @ power-
ful X-ray bean he is exposed to the hazard of external radistion,
(c) If an individual inzests r.diw: or inhzles
radioactive dust he is exposed to the hazerd of interne] rodia-
&
tion,
.
(ad)
The internel radiation h.gard is chareeter-
ized by certcin fectures not couw.on to the external radiction
hazerd, Chief cong these is the f2ct that the injurious wat‘erial is in the torn of a poison which produces drucge only when
taken into the body or npplied directly to the skin, Throughout
Operetion Crossronds enghasis h.s been plxced on the external rid-
dation heard,
Classification Changed to
In de:ling with the turget vessels the interna?
ASS ITED
i ace
Ry Authorty of r
By DNA secs Date
By BOE Co
Vee,
aa
are Date. —_ 2m
tL
.
Statement A
-1-
.
pnproved for Public release;
7
“i Lee
IDUTION uN imited
he
to ~
Sen
~
wee
apes t, ee piyete PPR pay
AM geEY wre
NAM
MIm
NG39-4 A
47- W
|\G SBEST CO( PY AVAILABLE