“
es, such as height of burst com
-gtudies as well as revising theoretical studi
putations.
nuclear radiations were
In addition to blast, thermal, visible and
also measurcd.
are nnaly—
It is expected that these oxperiments, once the data
to GREENHOUSE.
ged, will fill many of the gaps existing in theory prior
c.
REMOTE WEAPON PERFORMANCE MEASUREMENTS
the future as well as
In an effort to simplify weapon proof testing in
e in combat, simplified
to provide possible means of measuring weapon performanc
instruments suitable for usc in aircraft wore tested,
designed to measure transit time, alpha and yield,
These instruments were
Preliminary work was done
at LAS VEGAS, NEVADA in January 1951 during Operation RANGER.
_ struments to measure transit time are now available.
Successful in-
Some difficulty in measur-
ing yield with the BHANGMETER was encountered; however, improvements made in
canbu
this device during the tests make it appear thata satisfactory instrument
mado available with further mechanical and clectronic engineering.
Further stud
and experimentation is required in the development of the remote alpha measuring
equipment.
e.
8.
Fora more detailed discussion of Program 1.0, noe Appendix "A",
PROGRAM 2,0 — BIOMEDICAI.
The objective of thebiomedical, progran was to obtain information which can
Swine,
be used in planning effective medical care for the victims of atomic wirfare.
dogs and mice were exposed in order to determine the blast, thermal and nuclear
radiation effects as related to time and distance from ground zero.
The biological
effects observed were approximately the same as those predicted by laboratory tests.
For animals exposed in the vicinity of ground zcro the lethal range due to the blast
effects did not extend as far as the icthal range due to the nuclear radiation ef-
fects,
The thermal burns caused by the atomic cxplosions were due primrily to the
visible light region of the spectrum and occurred during the first one-half second
after the detonation.
The nuclear radiation produced by the atomic cxplosions ap-
peared to be 30% to 40% more effective biologically than the high voltage radiations
produced in the laboratory.
Measurements of radiation dosage by analysis of effects
on plants, sceds and animals compared fairly closcly with measurements obtained by
radiation instruments and calibrated film.
In the case of the larger animals, does
appeared to be more satisfactory than swine in the determination of lethal radiation ss
~~
ly
.
P
SERET
ory
a
rr
TA
sane
mons ELLY eT
f