Everything You Always Wanted to Know About Meltdowns...
But Were Afraid to Ask.

A 1974 Rasmussen Report.

[link to www.ccnr.org]

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Table of Contents:

0. Introductory Note: Rasmussen and the CANDU Reactor

I. Excerpts from the Executive Summary (WASH-1400)

2.6. HOW CAN RADIOACTIVITY BE RELEASED?

2.7. HOW MIGHT A CORE MELT ACCIDENT OCCUR?

2.8 WHAT FEATURES ARE PROVIDED IN REACTORS
TO COPE WITH A CORE MELT ACCIDENT?

2.9 HOW MIGHT THE LOSS-OF-COOLANT ACCIDENT
LEAD TO A CORE MELT?

2.10 HOW MIGHT A REACTOR TRANSIENT
LEAD TO A CORE MELT?

2.11 HOW LIKELY IS A CORE MELT ACCIDENT?



II. Excerpts from the Main Report
3.3 LOSS OF COOLANT ACCIDENTS

[ MORE ABOUT FUEL MELTING ]

3.5 ACCIDENTS INVOLVING THE SPENT FUEL
STORAGE POOL


III. Excerpts from Appendix VIII
CORE-MELTDOWN BEHAVIOR

CONTAINMENT VESSEL MELTTHROUGH

NONCONDENSABLE GASES


IV. Excerpts from Appendices VII and VI
1.2 MELTDOWN RELEASE COMPONENT (Appendix VII)

TABLE: Initial Activity of Radionuclides in the Nuclear
Reactor Core at the Time of the Hypothetical Accident (Appendix VI)

FIGURE VI.11-2 EVACUATION AREA FOR COST CALCULATIONS



V. Steam Explosions: Molten Materials Contacting Water

B. REVIEW OF LITERATURE

B1.1 INTRODUCTION

B1.2 REPRESENTATIVE INCIDENTS

B1.2.1 IN THE METAL INDUSTRY

B1.2.1.1 Mallory-Sharon Incident

B1.2.1.2 Reynolds Aluminum Incident

B1.2.1.3 Quebec Foundry Incident

B1.2.1.5 Armco Steel Incident

B1.2.1.6 East German Slag Incident

B1.2.1.7 British Slag Incident

B1.2.2 IN THE PAPER INDUSTRY

B1.2.3 IN THE NUCLEAR REACTOR INDUSTRY

B1.2.3.1 Canadian NRX Reactor

B1.2.3.2 Borax I Reactor

B1.2.3.3 SPERT 1-D Reactor

B1.2.3.4 SL-1 Reactor