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OPERATION HARDTACK
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Project No:
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Agency:
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WRDL & LASL
Shot Participation:
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(1 over land and 1 over water)
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411017
Title:
Aircraft Fallout Sampling
Project Officer:
Dr. R. R. Soule
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U.S. Naval Radiological Defense Lab
San Francisco, California
ATTN: Code 3-934
Phone:
MIssion 8-6900
Objective:
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To determine the relative contribution of certain isotopes to both local
and world-wide fallout.
To use this information, if possible, to determine
the fraction of total bomb debris deposited in the local area.
WN‘oy Description
peserdpts
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and Experimental Procedures:
1.
To date, fallout collection methods have not allowed a direct
40 ti9 YRS comparison
between fallout samples and close-in samples, such as have been
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roatinely obtained by sampling aircraft.
This project is designed to provide
correlation between high altitude sampling and low altitude sampling with
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comparable techniques.
2.
Three B-57D at the highest altitude attainable and four to six
B-57B at appropriate high altitudes will collect both particulate and gaseous
samples as soon after detonation as is practicable and at several tires thereafter. Final collection will be made approximately 6 hours after detonation.
At least one additional aircraft will be used for control purposes, and more
sampling aircraft will be used if they are available.
3.
Two or three B-50 aircraft will collect several particulate samples
at an altitude of approximately 1000 feet along predicted “height lines", to
allow fractionation between particle size for selected isotopes to be determined.
This will provide data on the relative céepletion of nonrefractory isctopes in
fallout. -Height lines will be chosen to aliow a direct comparison between
results of the high altitude and low altitude collections.
In addition, one
higher height line will be used;
one which is limited only by B-50 range
capability and!smallest particle size sought.
US DOE ARCHIVES
RG
326 US ATO*NC EXERGY
COMMISSION
Calectian LASI- ES
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Box
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