UNIVERSITY OF CALIFORNIA OBSERVATORIES / LICK OBSERVATORY
The lamps are not labeled with the corresponding identifiers due to the fact there is no convenient way to label each lamp. Thus we are relying on people placing the proper lamp in the proper box.
The lamp characteristics are as follows. Click on the lamp ID to see a sample spectrum. Each lamp has a different spectrum and the differences may be significant.
All sample lamp spectra were taken with the same parameters: 18 mA current, 20 second exposure with the 100:25 (focus) aperture with dewar 4.
|ThAr01||Installed at Hamilton||S&J Juniper & Co.; Serial No. 531495, Removed 2013 Apr 19; Reinstalled 10 Aug 2014|
|ThAr02||S&J Box||Westinghouse WL23418; Removed 9/6/2011; Lamp marked #02 TH|
|ThAr03||Westinghouse Box||Westinghouse WL23418; Lamp marked TH|
|ThAr04||S&J Box||S&J Juniper & Co.; Cat.No. 4160AHP; Serial No. 531499; Removed 10 Aug 2014, does not turn on.|
|ThAr05||Westinghouse Box||Westinghouse WL 32809; New 2/17/95; Lamp marked WL-32809|
|ThAr06||Westinghouse Box||Westinghouse WL-23418 Special; Lamp marked WL23418 Cathode TH; Base of lamp does not have pins, so would need special wiring to use.|
|ThAr07||Westinghouse Box||Westinghouse WL 32809; New 2/17/95; Lamp marked WL-32809 Serial No. 0079; Removed 6/19/2011|
|ThAr08||No box, packaged in foam||Westinghouse WL 23027; Gas Ne; NOTE: Is actually a ThNe lamp, not ThAr.|
|ThAr09||Clear Box||Westinghouse WL 23417; Gas A|
|ThAr10||Westinghouse Box||Westinghouse WL 23418 Special; Th 1/4" DIA; Gas A|
|ThAr11||Westinghouse Box||Fischer Scientific Company WL-32809; Labeled "Bad Removed 10/97"|
|ThAr12||Photron Lamps Box||Photron P858A; Th with Argon Fill; Serial # HKL0457; New Feb 2014|
|ThAr13||Photron Lamps Box||Photron P858A; Th with Argon Fill; Serial # HKL0453; New Feb 2014|