was five days. The influence of intermixing of fission products from
different tests on the measurements is discussed. The Freidburg
measuremerts showed that the products of the hydrogen bomb tests in the
Marshall Islands reached West Garmany after a travel time of 10 to 20 days.
In general the systematic use of the decay law did not yield discrete
explosion times but only quite indistinct digtribution curves which
indicate approxixam mately the true explosion dates. The effects 'of
meteorological conditions of both the troposphere and the stratosphere on
the transport, exchange, and deposition of fission products is discussed.
(C.H.)
‘
Descriptors:
ATMOSPHERE; DECAY; DISTRIBUTION; FALLOUT; FISSION PRODUCTS
; MEASURED VALUES; METEOROLOGY; NEVADA; NUCLEAR EXPLOSIONS; RADIOACTIVITY;
RAIN; TRANSLATIONS; TRANSPORT; WATER
Subject Codes (NSA): HEALTH AND SAFETY
10/5/226
095447
ON THE
(Item 226 from file:
NSA-13-002078
109)
SEISMOLOGICAL ASPECTS OF THE
1954 HYDROGEN BOMB EXPLOSIONS
Burke-Gaffney, T.N.; Bullen, K.E.
Riverview Coll. Observatory, Australia; Univ. of Sydney
Australian J. Phys.
v2.
Publication Date: (1958) Sept.
318-21 p.
Journal Announcement: NSA13
Document Type: Journal Article
Language: English
Tentative conclusions previously drawn from an analysis of seismic
readings of four 1954 hydrogen bomb explosions are re-examined in the light
of source data subsequently released on these explosions.
The released
data show that earlier computed origin-times for the four explosions were
correct within 0.0, 0.4, 0.7, and 0.1 sec, respectively. The re-examination
shows that the J.B. P tables need a correction of -2.2
plus or minus
1.0
sec for surface epicenters in the mid Pacific and recordings at continental
stations. It is confirmed that any difference between the P travel-times
from Bikini to Australia and Bikini to the United States is not much more
than 1/2 sec. Previous inferences on the velocities of air waves from the
explosions remain undisturbed. The re-exaanination confirms the occurrence
of diffracted PKP waves in front of the 142
caustic, and confirms that
these diffracted waves arrive at times significantly earlier than PKIKP
waves.
(auth)
Descriptors:
AIR; EARTH; ERRORS; HYDROGEN; NUCLEAR EXPLOSIONS;
OSCILLATIONS; SEISMOLOGY; SURFACES; THERMONUCLEAR REACTIONS; VELOCITY
Subject Codes (NSA): CONTROLLED THERMONUCLEAR PROCESSES
10/5/227
094095
(Item 227 from file:
NSA-13-000725
RADIOACTIVITY
DURING 1954-55
OF
109)
INVERTEBRATES AND
OTHER ORGANISMS
AT
ENIWETOK ATOLL
Bonham, K.
™
9003531
Washington.
Univ., Seattle.
Applied Fisheries Lab.
Publication Date: Jan. 6, 1958
55 p.
Primary Report No.: UWFL-53
Journal Announcement: NSA13
Availability: NTIS
Document Type: Report
Language: English
Contract No.:
AT(45-1)-540
The trend in beta radioactivity as measured with methane flow counters
over a period of about two years is shown, starting with the 1954 Castle
series of nuclear detonations, up to but not including the series of 1956.
The resuhts are presented as graphs each showing the logarithm of the
radioactivity of an organism or of a particular tissue of an organism,
related to the logarith of the time after the date of detonation, when
nearly all of the radioactivity was assumed to have originated.
Invertebrates are considered in greatest detail, and other organisms and
materials
plankton,
are included for comparison:
algae,
land plants,
island soil,
reef fish, birds,
beach sand,
and rats.
sea water,
It is proposed