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Description: | LMP 13 (old departmental catalogue number in aluminium paint on the stand). MANU Unsigned. late 19th early early 20th cen DES after CROOKES,William,Sir. 1878 London, England. DES after GEISSLER,Johann,Heinrich,Wilhelm. 1855 Bonn, Germany. This is a Crooke's tube with a mica mask and screen the electrons from the cathode travel through the slot on the mask and by the use of a magnet the beam can be deflected . The mica screen is painted (very crudely) with a flourescent materal. N.B. all gas discharge tubes emit X-rays this is because the electrons from the cathode strike the atoms of gas in the tube at high energy levels. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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