11

NUCLEAR-DEBRIS FORMATION

ENVIRONMENT

.

NUCLEAR

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ISSILE

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AND FUSIBLE

2

COMPONENTS

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“a.| PRIMARY
INDUCED

DECAYING MIXTURE OF
PRIMARY AND DAUGHTER
INDUCED ACTIVITIES

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a ACTIVITIES
¢

PRIMARY
FISSION

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PRODUCTS

DECAYING MIXTURE OF
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PRIMARY AND DAUGHTER junipers)

FISSION PRODUCTS

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RADIONUCLIODS
EXUSTIAS ar
EMALIEST Fics

ENVIRONMENT

PHYSICAL AND CHEMICAL PROCESSES
IN THE FIREBALL AND CLOUD

INDUCED

ACTIVITIES

{

NEUTRONS

VAPOR

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REFRACTORY AND
LESS AEFRaCTORY
MROSIONUE LIDES
EMSTING AT
IMTERMEHATE TES

PRODUCTS

MEFRACTOAY AND
LéS5 REFMACOar
MADIONUCLIDES
EXISTING 47
LATER TIMES

CHANGING NUCLEI POPU- UNCON DENSED VAPOR
LATION, RADIONUCLIDE
EVAPORATION
INCORPORATION,
SOLIDIFICATION

COOLING, EXPANSION, MUCLEATION

7

CHANGING SMALL PARTICLE
POPULATION, RADIONUCLIDE
INCORPORATION,

VAPORIZATION

FALLOUT

WORLDWIDE
FALLOUT

SOLIDIFICATION

SCAVENGING

28

aes Bs ay

SAbaL EL
PARTICLES

2
a

1 CHANGING MOLTEN PARTICLE
POPULATION, RADIONUCLIDE
INCORPORATION

COCL INE,

SOLIDIFICATION,
COMOENSATION

CHANGING MOLTEN-SOLIO
PARTICLE OISTRIBUTION,
RADIONUCLIDE AND SMALL

PARTICLE INCORPORATION

SCAVENGING

|

4

FALLOUT

LANGE
PARTICLES
LOCAL
FALLOUT

i

CHANGING UNMOLTEN PARTICLE POPULATION,
RADIONUCLIDE AND SMALL

(PROCESS NOT OCCURRING
tN AN AIR BLAST}

ENTRAINMENT
AND

VAPORIZATION

PARTICLE INCORPORATION

ENTRAINMENT

ENTRAINMENT

anp

MELTING

a
ENVIRONMENT
8LAST
PHASE

CONDENSATION
PHASE

FALLOUT
PHASE

Fig. 5—Fallout-formation processes in air and surface bursts.

ENVIRONMENT

NEL TRON

ACT ATION

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