Accession No

2053

Brief Description

X-ray gas tube, by Cuthbert Andrews, English, 1/2 20th Century

Origin

England

Maker

Cuthbert Andrews

Class

physics

Earliest Date

1900

Latest Date

1950

Inscription Date

Material

glass; metal (copper, tungsten, at least four white metals, 1 other); stone (mica); graphite; wood; rubber

Dimensions

length 510mm; breadth 240mm; height 340mm

Special Collection

Cavendish collection

Provenance

Transferred from Cavendish Laboratory, University of Cambridge, 1974.

Inscription

‘MAMMOTH
TUNGSTEN TARGET
Andrews Rapid X Ray Tube.
No. 104193
Made in England,
BY
CUTHBERT ANDREWS.’ (main chamber)

Description Notes

Spherical glass chamber with 2 opposing electrode tubes. 3 more tubes come out of the chamber, one for an electrode, one the evacuation tube and one for the carbon mica regulator. Cathode ends in concave disc, anode consists of white metal rod and is connected outside the instrument to the third electrode which consists of a copper rod ending in a squat cylinder with mica window in angled end which acts as the target. Carbon-mica regulator.
Contemporary wooden stand supports instrument.

Condition good (connection from regulator to cathode has broken); complete

References

Events