Accession No

2069

Brief Description

X-ray tube, 1/4 20th Century

Origin

Maker

Class

physics

Earliest Date

1900

Latest Date

1925

Inscription Date

Material

glass; metal (brass, copper, at least two other metals); paper; rubber

Dimensions

length 590mm; breadth 175mm; height 215mm

Special Collection

Cavendish collection

Provenance

Transferred from Cavendish Laboratory, University of Cambridge, 1974.

Inscription

‘Dr. Rosenthal’s
Grosse Iridiumröhre’ (cathode tube)

Description Notes

Glass tube with central spherical chamber, tinged purple from gas. Long tube from sphere containing white metal cathode ending in concave disc. Opposite the cathode is a long glass tube containing the connection for the target, and with side arms for the anode and the evacuation tube and the vacuum regulator. Target consists of a copper cylinder ending in a disc with an angled white metal target. Brass caps on electrodes to aid electrical connection. Paper label reads ‘Wagner C.L.C. 7d’

Condition good; complete.

References

Events