DESIGN AND SAFETY FEATURES OF DAPHNE

Journal Article · Tue May 01 04:00:00 EDT 1962 · Nuclear Eng.

OSTI ID:4830927

Hyder, H R.McK.; King, E S.F.; Merrett, D J

Heavy water moderated and enriched uranium-fueled Daphne, a zero energy reactor, consists of an aluminum reactor vessel into which lattice plates, fuel, and thimbles can be loaded to mock-up either a Dido or a Pluto core arrangement. Provision is made to measure the effect on reactivity of rigs, loops, and samples destined for the high flux reactors. Daphne also provides a convenient test facility for new designs of control and safety mechanisms and fuel elements. Daphne can also be used for fundamental studies of reactor physics of high neutron leakage heavy water systems and for experiments on reactor kinetics. Improved methods of flux measurement and neutron spectrometry will also be tried out in Daphne. The power level will be restricted to a maximum of 100 w. A fast shut-down system consists of four independent safety rods acting inside four of the fuel elements. Schematic dlagrams are presented of heavy water flow system, heavy water dump valve, reactor core set up for a Pluto test, fuel element, reactor top plate, and the reactor. Characteristics of nucleonic and physical instruments are given. The operational program is outlined. (N.W.R.)

• Research Organization: Atomic Energy Research Establishment, Harwell, Berks, Eng.
• NSA Number: NSA-16-018690
• OSTI ID: 4830927
• Journal Information: Nuclear Eng., Journal Name: Nuclear Eng. Vol. Vol: 7: No. 72
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALUMINUM
CONTROL SYSTEMS
DAPHNE
DIAGRAMS
ELECTRONIC EQUIPMENT
FUELS
HEAVY WATER MODERATOR
IN PILE LOOPS
INSTRUMENTS
LIQUID FLOW
LOSSES
MEASURED VALUES
NEUTRON FLUX
NEUTRON SPECTROMETERS
PLANNING
PLATES
POWER
PRESSURE VESSELS
REACTIVITY
REACTOR CORE
REACTOR SAFETY
REACTOR TECHNOLOGY
RESEARCH REACTORS
SHUTDOWN
TESTING
URANIUM
VALVES
VARIATIONS