Thi
nt contains restricted
Energy Act
affecting the
United State
Espionar
amend
meaning of the
ad 32, as
pe
uncuthorized person is prohibited
d may result in severe criminal penalty.
ENCLOSURE "A"
EXPERIMENTAL OBSERVATIONS TO BE MADE
1. The Atomic Energy Commission hus requirements for cxporimental cbscrvations of phenomena attcnding the deteration cf
certain atomic weapuns in order to secure date from which may be
determined the best choice cof weapons for stock piling,
the most
efficient use of svailable fissionable material, ond basic
scientific information to use in werpon resosrch and development.
The cbservetions are given in the order cf priority as follows:
& Essential observations - those to detorminc:
(1) The nuclear cfriciency of the cxplosicns by radio
chonmicaol anevlysia of sir and ground samplos of the
products of tho nuclear reaction.
(2) The amount of total onergy reloased by means of
high specd motion pictures cf the ball of fire and of
the snocl: front.
{3) The blast effects by ebserving peak pressure
as a function of distance, and instantancous pressurcs
23 a Function of time and distance,
(4) The rate of incrcasc in the generation of onorey
in the carly stages of the nucloar reaction in order to
substantiate and improve theory to be applicd in weapon
devcicopment.
b. Wighly desireble observations arc:
(1) The measurement of transit time, the period
betwecn firing and the cmission of gemma rays, as a
5
Enclosure "a"