Description


Page : 338

Sondrestrom Lidar Operation Log


Operator(s) : E.Gudmundsson
Purpose : Routine data collection
Date(s) : 990905 - 990906
File(s) : L9909056 - L9909063
Comments : Note. The system is not gated, as the gate circuit hasto long a rise time. The
chopper is used instead.
Logfile : L9909050.log

Setup:0


Page : 339
[Variables]
Dye Power=85mJ
Rayleigh Power=560mJ

[0]
90% PMT Iris=not_installed
Rayleigh System=On
Dye System=On
Daystar=Out
Polerizer=In
HalfWave Plates=Tracking
Filter Wheel=2:532(.5nm)

[1]
90% PMT Iris=not_installed
Rayleigh System=On
Dye System=On
Daystar=Out
Polerizer=Out
HalfWave Plates=Tracking
Filter Wheel=2:532(.5nm)

[2]
90% PMT Iris=not_installed
Rayleigh System=On
Dye System=On
Daystar=In
Polerizer=In
HalfWave Plates=Tracking
Filter Wheel=3:Open

Logsheet:0


Page : 340

Sondrestrom Lidar Operation Log


Log Sheet 1 of 2
Operators : E.Gudmundsson
Date(s) : 990905 - 990906
File(s) : L9909056 - L9909060
FilesTime [UT]CommentsCntSOpe
L990905623:55:28Start of experiment48880
L990905623:55:36The iris is fully open.A bit hazy0
L990905623:55:42The sodium counts a only half of what they were yesterday0
L990905600:07:46 Dye system tuned from 589.156 to 589.158 nm44690
L990905600:09:51Dye system tuned to 589.159 nm42410
L990905600:12:27Dye system tuned to 589.160 nm43700
L990905600:14:54Dye system tuned to 589.161 nm43510
L990905600:17:17Dye system tuned to 589.162 nm, passed the peek here45170
L990905600:19:16Dye system tuned to 589. 164nm45890
L990905600:22:02Dye system tuned to 589166. nm42980
L990905600:25:23Tuned dye to the peek return wavelength as indicated on 0
the wavemeter 589.161nm. Perhaps this tuning session
00:26:49can give some indication of the laser linewidth49700
L990905600:30:34Rayleigh Convergence mirror adjusted49020
L990905600:36:51There are small clouds around, starting to interfere0
L990905600:39:09Counts33360
L990905601:02:44Rayleigh HG adjusted36850
L990905601:40:26Clouds9190
L990905601:51:21Changing setup0
L990906001:53:12The polarizer is out, window in incremented10731
L990906001:54:54Ups! while changing some light got into the reciver on the 29861
last record of l9909056
L990906002:34:10The cloud overhead does not move! I'm hopeful though.271
L990906003:02:12data comming in again, the cloud is moving9921

Logsheet:1


Page : 341

Sondrestrom Lidar Operation Log


Log Sheet 2 of 2
Operators :
Date(s) : 990906 - 990906
File(s) : L9909060 - L9909063
FilesTime [UT]CommentsCntSOpe
L990906003:34:00Tweeked sodium HG therefore a small time gap in file59591
L990906004:13:27nice counts now57531
L990906004:13:40This may indicate that the polarizer is a bit off 57631
L990906104:37:31Sodium Convergence mirror adjusted57921
L990906105:04:52Sodium Convergence mirror adjusted57951
Starting to have problems with the cold. I have to install
the heaters again for the winter
L990906106:10:29Ending experiment, incrementing56951
L990906106:13:48Polarizer back in the system45040
L990906206:26:14Polarizer angle has been optimized55010
L990906206:27:05Changing to Daystar setup, incremented55012
L990906306:47:53The Daystar is a bit closer to optimum now, but the 2
mount is difficult to control, gonna have to figure something1161
out to get a better control over the adjustment1187
L990906306:49:28Counts11872
L990906307:04:19End of experiment11472