ThAr lamps history

List of actions on the HARPS ThAr lamps: red = ThAr1 (lamp 4), blue = ThAr2 (lamp 5), green = ThAr3 (lamp3), yellow = ThAr4 (lamp3).
Date Intervention on lamp: Supplier Serial Number Current Action Hour met.1(Lamp4) Hour met.2(Lamp5) Hour met.3(Lamp3)
30-10-2003 ThAr1 (lamp4) Cathodeon B73089 10.0 mA Lamp died: remove it - - -
30-10-2003 ThAr1 (lamp4) Cathodeon B13773 10.0 mA New lamp: installed - - -
03-11-2003 ThAr2 (lamp5) Cathodeon B73070 8.2 mA Lamp died: remove it - - -
03-11-2003 ThAr2 (lamp5) Cathodeon B13772 8.2 mA New lamp: installed - - -
08-11-2003 ThAr1, ThAr2 - - Hour meters installed 0 0 -
12-11-2003 ThAr1 (lamp4) Cathodeon B13773 7.2 mA Lamp current changed - - -
06-04-2004 ThAr1 (lamp4) Cathodeon B13773 9.0 mA Lamp current changed - - -
11-05-2004 ThAr2 (lamp5) Cathodeon B13772 5.8 mA Lamp current changed - - -
18-11-2004 ThAr2 (lamp5) Cathodeon B13772 5.8 mA Lamp died: remove it 155 3040 -
18-11-2004 ThAr2 (lamp5) Cathodeon B13820 8 mA New lamp: installed 155 3040 -
15-05-2005 ThAr2 (lamp5) Cathodeon B13820 5.6mA Lamp current changed 221 4514 -
01-04-2006 ThAr3 (lamp3) Cathodeon B96358 9.0mA New Lamp 221 4514 0
27-05-2006 ThAr2 (lamp5) Cathodeon B13820 5.6mA Lamp died: remove it 323 6981 24
27-05-2006 ThAr2 (lamp5) Heraeus B00200 9.0mA New Lamp, from new batch 323 6981 24
03-09-2006 ThAr2 (lamp5) Heraeus B00200 7.0mA Lamp current changed 364 7720 30
02-11-2006 ThAr2 (lamp5) Heraeus B00200 7.0mA Retire lamp (contaminated ?) 368 7789 31
02-11-2006 ThAr2 (lamp5) Cathodeon B96358 9.0mA Taken from SPARE 368 7789 31
02-11-2006 ThAr3 (lamp3) Cathodeon B96358 9.0mA Move to ThAr2(lamp5) 368 7789 31
02-11-2006 ThAr3 (lamp3) Cathodeon B00206 10.0mA New lamp 368 7789 31
05-11-2006 ThAr3 (lamp3) Heraeus B00199 10.0mA New lamp (after tests) 368 7800 32
08-12-2006 ThAr3 (lamp3) Cathodeon B13821 9.0mA New lamp 389 8095 44
04-07-2007 ThAr3 (lamp3) Cathodeon B98222 10.0mA Future THAR1 (already Xcalib.) 457 9554 56
31-07-2007 ThAr3 (lamp3) Cathodeon B13773 9.0mA Old THAR1 (for further tests) 481 9748 59
31-07-2007 ThAr1 (lamp4) Cathodeon B98222 10.0mA New lamp, already Xcalib. (1) 481 9748 59
03-12-2007 ThAr2 (lamp5) Cathodeon B96358 8.0mA Lamp current changed 532 10535 72
01-04-2008 ThAr4 (lamp3) Juniper 529294 5.0mA Lamp installed and X calib. (2) - - -
22-10-2008 ThAr3 (lamp3) Cathodeon B13773 9.0mA Moved in the cabinet (Old THAR1) - - -
22-10-2008 ThAr3 (lamp3) Juniper 529294 5.0mA Lamp changed slot, from 4 to 3 - - -
11-11-2008 ThAr2 (lamp5) Cathodeon B96358 6.4mA Lamp current changed 697 13477 74
08-05-2009 ThAr2 (lamp5) Juniper S/N 601066 9mA Previous lamp died, changed 777 14580 74
06-06-2009 ThAr2 (lamp5) Juniper S/N 601066 8mA Lamp current changed 793 14762 74
21-09-2009 ThAr2 (lamp5) Juniper S/N 601063 6mA Lamp current changed --- 15798 ---
14-09-2010 ThAr2 (lamp5) Juniper S/N 601065 6mA Lamp changed --- 19253 ---
03-12-2010 ThAr1 (lamp4) Cathodeon S/N B98222 9.2mA Lamp current changed 1196 20032 76
03-12-2010 ThAr2 (lamp5) Juniper S/N 601065 6mA Lamp current changed 1196 20032 76
12-01-2011 ThAr2 (lamp5) Juniper S/N 601065 5mA Lamp current changed 1221 20305 76
10-08-2011 ThAr2 (lamp5) Juniper S/N 601065 4mA Lamp current changed 1430 22165 76
28-08-2011 ThAr2 (lamp5) Juniper S/N 601067 4mA Lamp changed 1444 22354 76
04-09-2011 ThAr2 (lamp5) Juniper S/N 601067 7mA Lamp current changed and aligned 1485.39 22472.30 76
22-01-2012 ThAr2 (lamp5) Juniper S/N 601064 8mA New lamp installed and aligned 1645.92 23782.60 77.91

The lamps of the series B00XXX (Heraeus) seem to be polluted by an unknown contaminant and are not adequate for precise drift measurements.

(1) Cross calibration data are in the DRS computer, in: /data/BACKUP/TH_LAMPS/Cross_calib/
(2) Cross calibration data are in the DRS computer, in: /data/BACKUP/TH_LAMPS/Cross_calib/2008-06-18/