Accession No

2056.1

Brief Description

light anode type X-ray focus tube, by Cox, English, c. 1917

Origin

England

Maker

Cox

Class

physics

Earliest Date

1917

Latest Date

1917

Inscription Date

10-10-1917

Material

glass; metal (at least three white metals, copper); rubber; paper

Dimensions

length 340mm; max diameter 140mm

Special Collection

Cavendish collection

Provenance

Transferred from Cavendish Laboratory, University of Cambridge, 09/1974.

Inscription

‘Cox’s Record.
NO 59669’ (main chamber)

Description Notes

Glass tube with central spherical chamber, tinged purple from gas. White metal rod anode in arm. Opposing long tube with side arm, containing white metal cathode ending in concave disc. Side arm with connection for the target, which consists of a white metal disc. Metal caps on electrodes to aid electrical connection; spiral metal wire connects anode and target. Carries Cavendish label reading ‘X-Ray Gas tube by Cox Light anode type’; also issue label dated 10-10-1917,

Condition good; complete.

References

Events