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Title: Variable control of neutron albedo in toroidal fusion devices

Patent ·
OSTI ID:866066

An arrangement is provided for controlling neutron albedo in toroidal fusion devices having inboard and outboard vacuum vessel walls for containment of the neutrons of a fusion plasma. Neutron albedo material is disposed immediately adjacent the inboard wall, and is movable, preferably in vertical directions, so as to be brought into and out of neutron modifying communication with the fusion neutrons. Neutron albedo material preferably comprises a liquid form, but may also take pebble, stringer and curtain-like forms. A neutron flux valve, rotatable about a vertical axis is also disclosed.

Research Organization:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
DOE Contract Number:
AC02-76CH03073
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4626400
OSTI ID:
866066
Country of Publication:
United States
Language:
English