important measurements were imde by means of neutron cameras nud threshold detectors
placed at various distances from the bomb to determine the extent of the thermonuclear reaction.
Other measurements were madc in the high energy newbron spectrum.
PRELIMINARY VALUES FOR YIRLD IN KTLOTONS
nana Bar Erg
3.
+E SUMIERNTatt > 2aORTUERCRAstp
PHENOMENOLOGY
A portion of the blast program was designed to obtain the pressure distanee curve from an atomic bomb prior to reflection of the blast wave from the
ground,
This was done by means of detectors inounted on cables supported by balleons
and by photographing the intersection of the shock wave with specially designed amok
breiling rockets,
These two techniques were highly successful.
Other measurements
of blast included pressure versus distance on the ground and attempts to obtain prosgure versus time on the ground 4s a function of clistanec.
The results of the ground
measurements are at present somewhat puzzling but it is hoped that some of the anomalics may be resolved upon further study.
A primary objective of the blast program
was to establish the points of similarity and difference between the blast produced
by an atomic bomb ond that produced by high explosives.
Ib is hoped that the fres-
air pressure curves obtaincd will develop information on this point.
®,
THERMAL RADIATION
Mcasuremcents were made of the spectral distribution and time dependence
ATUERPASE 40k —~ {848
prt Ps
74
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