UNCLASSIFIED
SECURITY CLASSIFICATION OF THIS PAGE
mn Approved 8
MB No. 0704-0188
Eeeee
on 30 F986
REPORT DOCUMENTATION PAGE
Ja. REPORT SECURITY CLASSIFICATION
lb RESTRICTIVE MARKINGS
2a. SECURITY CLASSIFICATION AUTHORITY
3. DISTRIBUTION / AVAILABILITY OF REPORT
UNCLASSIFIED
N/A since Unclassified
Approved for public release; distribution is
2b. DECLASSIFICATION / DOWNGRADING SCHEDULE
N/A since Unclassified
unlimited
4 PERFORMING ORGANIZATION REPORT NUMBER(S)
5. MONITORING ORGANIZATION REPORT NUMBER(S)
WT~1625(EX)
Sa. NAME OF PERFORMING ORGANIZATION
l-Naval Radiological Defense
Laboratory
6b Fane over
7a. NAME OF MONITORING ORGANIZATION
If applicable.
.
Defense Atomic Support Agency
Sc. ADDRESS (City, State, and ZIP Code)
76 ADDRESS (City, State, and ZIP Code)
1-San Francisco, CA
Washington, DC
8a. NAME OF FUNDING / SPONSORING
8b. OFFICE SYMBOL
ORGANIZATION
9. PROCUREMENT INSTRUMENT IDENTIFICATION NUMBER
(If applicable)
Be. ADORESS(City, State, and ZIP Code)
70, SOURCE OF FUNDING NUMBERS
PROGRAM
ELEMENT NO
PROJECT
NO
TASK
NO
WORK UNIT
ACCESSION NO
14 TITLE (Include Security Classificatron)
OPERATION HARDTACK—PROJECT 2.8
Fallout Measurements by Aircraft and Rocket Sampling, Extracted Version
12 PERSONAL AUTHOR(S)
Whitcher, S$.L.; Bunney, L.R.; Soule, R.R.; and daRoza, R.A.
13a. TYPE OF REPORT
13b. TIME COVERED
14 DATE OF REPORT (Year, Month, Day)
FROM ____ TO _____
610929
}15 PAGE COUNT
84
16. SUPPLEMENTARY NOTATION This report has had sensitive military information removed in order to
Provide an unclassified version for unlimited distribution. The work was performed by the
Defense Nuclear Agency in support of the DoD Nuclear Test Personnel Review Program,
17
FIELO
18
18
COSAT! CODES
GROUP
3
8
.
18 SUBJECT TERMS (Continue on reverse if necessary and identify by block number)
$U8-GROUP
Hardtack
Fallout
Aircraft Sampling
19 ABSTRACT (Continue on reverse if necessary and identify by block number}
The general objective of this project was to estimate, from analytical data on cloud samples,
the relative distribution of certain radionuclides between the local and worldwide fallout
formed by megaton-range detonations on land and water surfaces, with particular emphasis on
the distribution of Sr?° and Cs!37 between local and worldwide fallout.
Specific objectives were to: (1) obtain airborne particle and gas samples by rocket and aircraft sampling techniques; (2) determine the distribution of radionuclides between two groups
of particles that differed from one another in their falling rates in air and that could be
considered representative of local and worldwide fallout; (3) attempt to determine an early
time distribution of radionuclides and particles between the upper and lower halves of the
Cloud and radially outward from the cloud axis; and (4) estimate the extent of separation of
fallout from gaseous fission products by fission determinations on gas and particle samples
collected coincidentally near the top of the cloud at various times following the shots.
20 DISTRIBUTION / AVAILABILITY OF ABSTRACT
CU uncLassi-ieDruNuimiteD
(] same as RPT
22a. NAME OF RESPONSIBLE INDIVIDUAL
Mark D. Flohr
OD FORM 1473, 84mar
21 ABSTRACT SECURITY CLASSIFICATION
Co otic users
UNCLASSIFIED
226 TELEPHONE (Include Area Code) 22c OFFICE SYMBOL
(202) 325-7559
DNA/ TSCM
83 APR edition may be used until exhausted
All other editions are obsolete
j
SECURITY CLASSIFICATION OF THIS PAGE
UNCLASSIFIED