Description


Page : 68

Sondrestrom Lidar Operation Log


Operator(s) : J.Jørgensen
Purpose : Routine data collection
Date(s) : 980614 - 980614
File(s) : L9806140 - L9806142
Comments :
Logfile : l9806140.log

Setup:0


Page : 69
[Variables]
Rayleigh Power=560 mJ

[0]
90% PMT Iris=not_installed
Rayleigh System=On
Dye System=Off
Daystar=In
Polerizer=In
HalfWave Plates=Tracking

Logsheet:0


Page : 70

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : J.Jørgensen
Date(s) : 980614 - 980614
File(s) : L9806140 - L9806142
FilesTime [UT]CommentsCntSOpe
L980614000:28:40Start of experiment0JJ
L980614000:37:23HG adj.5260JJ
L980614001:03:22HG adj.6470JJ
L980614001:06:01Something is wrong, the background is going up when it 0JJ
should be going down.
L980614001:37:21Pausing to look at RX halfwave plate0JJ
L980614001:40:07Running again. Wondering if the RX halfwave plate is 0JJ
moveing in the wrong direction since they moved it to the
other side of the beamsplitter???? The is no easy way to
test it though without reprogramming.
L980614001:42:12Ups forgot the blocking filter was in place0JJ
L980614001:43:01Okay back to filter 30JJ
L980614001:48:41Disconnected both TX and RX halfwave trackers to see if0JJ
the background will start going down
L980614001:58:15Trackers connected again. Background started to go down0JJ
so something is wrong with the halfwave plate tracking.
L980614001:59:14Going to adj. the halfwave plates0JJ
L980614002:15:22Adjusted halfwave plates and was able to lower the back-0JJ
ground quiet a bit!!
L980614002:19:25HG + conv. mirror adj.5650JJ
L980614102:29:53That seemed to have helped. The background is decreasing6520JJ
now as it should.
L980614103:57:56HG adj.7210JJ
L980614205:33:03End of experiment0JJ