Cathode ray tube with one mineral

Physics

Accession Number: 2009.ph.214

Instrument Name: Cathode ray tube with one mineral

Description:

A black turned wooden base with a 19cm glass tube vertically mounting on top of the wooden base. On the lower part of the glass tube there is a 2cm projection which contains the electrode. Inside the glass tube there is a greenish mineral which is supported by an inner glass arm, 1/3 of the distance from the bottom of the tube. On the top of the glass tube there is a disc shaped electrode.

Alternative Name: Crookes Tube with one mineral

Primary Materials: Wood, Metal, Glass

Markings: Old inventory number = phy75.

Dimensions (cm):

Height = 25.5 cm, Length = 9 cm, Width = 8 cm

Function:

A mineral fluoresces under bombardment of cathode rays. Possibly used for spectroscopy.

Condition:

Associated Instruments:

Manufacturer:

Date of Manufacture:

Provenance: Collection of Dr. Martin Lee.

Donated to UTSIC: No

Historical Notes: