Made by Centronic Limited | Science Museum Group Collection

Model of gamma compensated ionisation chamber type RC6, made by 20th Century Electronics in 1967. The ionisation chamber contains two oppositely-charged electrodes arranged so that, when the gas is ionised (ie: by X-rays), the ions are drawn to the electrodes, creating a current. This is used as a measure of the intensity of the ionising radiation. The model was made for, and presented to, Gilbert Tomes by his workforce at 20th Century Electronics (Later Centronic Ltd)

Model of gamma compensated ionisation chamber type RC6

1967

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Model of stable isotope separation plant

Experimental type 2P Geiger-Muller tube

Neutron Detector

Model thin walled beta-sensitive Geiger-Muller tube

Model of solid state radiation detector

Cloud mapper sensor for Meteostat weather satellite by Centronic Ltd., 1985-1988

Model of metal bodied end window Geiger-Muller tube

Model of travelling wave deflection cathode ray tube

Type M2N Geiger-Muller tube

All-metal end window Geiger-Muller tube assembly

Pulse Fission Detector, c 1996

Boron steel balls for use in reactor safety systems

Boron steel plate for use in reactor safety systems. Made by 20th Century Electronics 1958-70 on a large scale

Model of REM/N neutron dose equivalent counter

Boron carbide pellets

Smart Ion Detector, made by Centronic Ltd., New Ad

Presentation model of field ion microscope

Model of BF3 neutron proportional Geiger counter

Model of Harries 'sunflower' projection cathode ray tube

Type IB2 Geiger-Muller tube assembly

Model of fission Geiger counter type FC4

Isotope separation plant, 1977-1978.

Model of gamma compensated ionisation chamber type RC6