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ID Date Author Type Categorydown Subject Text Attachments
  2   Thu Dec 10 22:23:47 2009 Not AidanLaserLaserTestYes.


  
  90   Tue Aug 17 16:31:55 2010 AidanThings to BuyLaserBought a laser diode from Thorlabs for HWShttp://www.thorlabs.com/thorProduct.cfm?partNumber=CPS180
I bought this laser diode from Thorlabs
today to try the current modulation trick
  
  93   Mon Aug 23 08:43:16 2010 AidanThings to BuyLaserBought a laser diode from Thorlabs for HWSIt arrived on Friday.


  
  107   Fri Feb 18 14:53:50 2011 PhilLaserLaserLTG laser delivering specified powerI got the LTG CO2 laser to deliver 50.02W
as measured by the Thorlabs 200W power head
today. This required running the Glassman
  
  110   Thu Feb 24 10:23:31 2011 Christopher GuidoLaserLaserLTG initial noiseCheryl Vorvick, Chris Guido, Phil Willems
Attached is a PDF with some initial
noise testing. There are 5 spectrum plots
 LTG_InitialTest.pdf 
  150   Thu May 26 11:56:46 2011 AidanElectronicsLaserGreen Laser Pointer beam profileThis measurement was made with the Thorlabs
DCC1545M-GL camera with an RG850 3mm long-pass
filter over the CCD.
 green_laser_pointer.bmpgreen_laser_pointer.pdfScreen_shot_2011-05-26_at_12.28.20_PM.png 
  207   Thu Feb 8 15:42:13 2018 AidanLaserLaserLow power CO2 laser [400mW] beam size measurementI did a beam size/beam propagation measurement
of the low power CO2 laser (Access Laser
L3, SN:154507-154935)
 L3_CO2_laser_beam_size.mL3_CO2_Laser_154507-154935.pdf 
  156   Tue Nov 29 09:13:49 2011 ranaMiscLIGO 3GSwitching from CO2 to shorter wavelength solid state laser Around a year ago, Phil and I discussed
the possibility of using an OPO to possibly
generate our own laser beam at ~2 microns
  
  159   Thu Jun 7 00:23:11 2012 Aditi MittalMiscLIGO 3GSummary June 5 and June 6, 2012 June 5
-Discussed the actual project outline 
-Installed Comsol on the system
  
  161   Thu Jun 7 23:24:56 2012 Aditi MittalMiscLIGO 3GSummary June 7, 2012-Created a COMSOL model for variation of
temperature in two mass system.
-Used the above model for cryogenic
  
  163   Fri Jun 8 23:51:13 2012 Aditi MittalMiscLIGO 3GSummary June 8, 2012-Created a COMSOL model for cryogenically
shielded test mass with compensation plate.
-Analyzed the behavior of the model
  
  165   Mon Jun 11 20:53:31 2012 Aditi MittalMiscLIGO 3GSummary June 11, 2012 -Continued with the same cryogenic
model created and varied the length of  outer
shield and studied the temperature variation
  
  167   Thu Jun 14 05:37:30 2012 Aditi MittalMiscLIGO 3GSummary June 13, 2012-Derived formula for manual calculation
of temperature due to total influx.
-Compared the results by COMSOL and
  
  170   Mon Jun 18 23:42:39 2012 Aditi MittalMiscLIGO 3GCryogenic Shielding -Read about blue team design for
maximum power budget.
-Read third generation talks to get
  
  173   Thu Jun 21 11:16:27 2012 Aditi MittalMiscLIGO 3GSummary June 19 and 20, 2012 -Attented LIGO orientation meeting
and safety session.
-Prepared 3 week report
 temp_of_test_mass.png 
  175   Thu Jun 21 18:35:44 2012 Aditi MittalMiscLIGO 3GSummary June 21, 2012 -Updated 3 week progress report with
new additions and deletions.
-Attended LIGO lecture which was
  
  176   Tue Jun 26 17:55:44 2012 Aditi MittalMiscLIGO 3GSummary June 26, 2012- Discussed the further project with Dr.
Brooks.
-Tried to derive formula for the
  
  179   Fri Jun 29 15:51:24 2012 Aditi MittalMiscLIGO 3GSummary June 28 and 29, 2012 -Discussed the project outline for
next 6 weeks.
-made a write up for the tasks. (attached)
 pipelength_power.xlsx6week_plan.doc 
  17   Mon Apr 12 08:55:37 2010 AidanComputingHartmann sensorEDT frame grabber is here The EDT PCIe4 DV C-Link frame grabber
arrived this morning. There is a CD of drivers
and software with it that I'll back up to
  
  18   Mon Apr 12 17:25:01 2010 AidanElectronicsHartmann sensorFiber-Camera Link demonstration I installed the EDT PCIe4 DV C-Link
frame grabber in a spare Windows XP PC and
connected the Dalsa 1M60 camera directly
 hartmann_sensor.JPGFiber_Camera_Link_1.jpgFiber_Camera_Link_3.jpg 
  19   Thu Apr 15 01:47:47 2010 Won KimComputingHartmann sensorNotes on installing EDT PCIe4 DV frame grabber* EDT PCIe4 DV frame grabber: installation
notes for linux system 
  
  20   Tue Apr 20 18:05:24 2010 AidanComputingHartmann sensorImages off the Dalsa Camera in CentOS I installed CentOS on the machine
with the EDT frame-grabber. I then installed
the frame-grabber software from the CD.
 Screenshot-PCI_DV_Display.pngScreenshot-PCI_DV_Display-1.png-opt-EDTpdv.png 
  23   Thu Apr 22 08:20:51 2010 AidanComputingHartmann sensorInstalled MATLAB and Windows XP Virtualization on Hartmann machineI installed a Windows XP virtualization
on the Hartmann machine. It can be accessed
from the desktop, or by running 
  
  27   Tue May 4 09:18:15 2010 AidanComputingHartmann sensorAdded aliases and icons for EPICS commands and dataviewer etc. to hartmannI updated the .bashrc file in controls@hartmann
to include aliases for the ezca EPICS commands
and a few others. Details shown below:
  
  28   Tue May 4 10:30:07 2010 AidanComputingHartmann sensorEPICS and MEDM screen for Hartmann sensorI added the Dalsa 1M60 temperature measurements
to EPICS. The break down is as follows:
 Screenshot-C4HWS_medm_21.adl_(edited).pngScreenshot-StripTool_Graph_Window.pngHWS.dbHWS.cmdread_dalsa_temperature_write_to_epics.m 
  29   Tue May 4 13:35:13 2010 AidanComputingHartmann sensorHartmann temperature channels in frame builder I've added the digitizer and sensor
board temperature readings from the HWS to
the frames. This was done in the following
  
  30   Wed May 5 09:04:01 2010 AidanComputingHartmann sensorAdded /home/controls/scripts/modules directory to PYTHONPATH on hartmann I added the following line to ~/.bashrc
 
  
  31   Wed May 5 18:45:51 2010 AidanComputingHartmann sensorPython code to interface the Dalsa1M60 and export the temperature to EPICSPython script
I wrote a Python script, ~/scripts/dalsa_to_epics.py
 dalsa_to_epics.pyVerifyTemperature.pydalsa_1m60.cfg 
  32   Thu May 6 10:34:38 2010 AidanComputingHartmann sensorEPICS and MEDM screen for Hartmann sensor - part 2I added the camera parameters to EPICS
and the MEDM screen. These are available
as channels now in EPICS and eventually there
 dalsa_to_epics.pyGetCameraParameters.pyHWS.dbC4TCS.ini 
  33   Thu May 6 12:32:11 2010 AidanComputingHartmann sensordalsa_to_epics Python script crashed ...Here's the error:
 
  
  34   Thu May 6 21:32:26 2010 Won KimComputingHartmann sensorPeak detection and centroiding code 
 
 detect_peaks_uml.m 
  35   Tue May 11 10:32:00 2010 AidanComputingHartmann sensorPeak detection and centroiding code - reviewThis looks really efficient! However, I
think there's a systematic error in the calculation.
I tested it on some simulated data and it
 test_centroid_code.m 
  36   Thu May 13 16:54:46 2010 AidanComputingHartmann sensorRunning MATLAB programs in C on CentOS - only use R2008b for less hassle After much effort trying to get a
MATLAB routine to compile in C I discovered
the following pieces of information.
  
  39   Thu May 20 08:20:54 2010 AidanComputingHartmann sensorCentroiding algorithm and code to generate simulated data Here's a copy of an email I distributed
today that describes the centroid and simulation
code I wrote.
 test_spot_generation_and_centroiding.mgenerate_simulated_spots.mcentroid_image.m 
  42   Mon May 24 19:17:32 2010 AidanLaserHartmann sensorReplaced Brass Plate with Invar Hartmann PlateI just replaced the brass Hartmann plate
with the Invar one. The camera was off during
the process but has been turned on again.
  
  44   Wed May 26 14:58:04 2010 AidanMiscHartmann sensorHartmann sensor cooling fins added14:55 -  Mindy stopped by with the
copper heater spreaders and the cooling fins
for the Hartmann sensor. We've set them all
 HWS_CONFIG1.jpg 
  45   Thu May 27 08:25:37 2010 AidanElectronicsHartmann sensorHartmann sensor cooling fins added - base piece removed 8:10AM - I removed the base plate
from the Hartmann sensor. I want to know
what steady-state temperature the HWS achieves
 HWS_CONFIG2.jpg 
  46   Thu May 27 13:18:51 2010 AidanElectronicsHartmann sensorRemoved Cooling fins from Hartmann sensorI removed the cooling fins from the Hartmann
sensor to see what steady-state temperature
it reached without any passive cooling elements.
 HWS_CONFIG3.jpg 
  47   Thu May 27 15:42:06 2010 AidanElectronicsHartmann sensorHartmann sensor with just the base pieceI switched in just the base piece of the
Hartmann sensor. The cooling fins are removed.
I bolted the camera securely to the base
 HWS_CONFIG4.jpg 
  48   Thu May 27 17:49:02 2010 AidanElectronicsHartmann sensorHartmann sensor cooling fins added - base piece added Back to Configuration 1 again - this
time the fins were bolted very securely to
the camera.
 HWS_CONFIG1-tight.jpg 
  49   Tue Jun 15 16:30:10 2010 Peter VeitchMiscHartmann sensorSpot displacement maps - temperate sensitivity testsResults of initial measurement of temperature
sensitivity of Hartmann sensor
"Cold" images were taken
 spot_displacements_same_temp_0611.jpgspot_displacements_diff_temp_0611.jpg 
  50   Wed Jun 16 11:47:11 2010 AidanMiscHartmann sensorSpot displacement maps - temperate sensitivity tests - PRISMI think that the second plot is just showing
PRISM and converting it to its radial components.
This is due to the fact that the sign of
 Prism_as_radial_vector.pdf 
  51   Thu Jun 17 07:40:07 2010 James KMiscHartmann sensorSURF Log -- Day 1, Getting Started For Wednesday, June 16:   
  52   Thu Jun 17 22:03:51 2010 James KMiscHartmann sensorSURF Log -- Day 2, Getting StartedFor Thursday, June 17:
Today I attended a basic laser safety
training orientation, the second Introduction
  
  53   Sat Jun 19 17:31:46 2010 James KMiscHartmann sensorSURF Log -- Day 3, Initial Image Analysis   7x 
  54   Tue Jun 22 00:21:47 2010 James KMiscHartmann sensorSurf Log -- Day 4, Hartmann Spot Flickering Investigation I started out
the day by taking some images from the CCD
 7x 
  55   Tue Jun 22 22:30:24 2010 James KMiscHartmann sensorSURF Log -- Day 5, more Hartmann image preliminary analysis Today I spoke with Dr. Brooks and
got a rough outline of what my experiment
for the next few weeks will entail. I'll
 13x 
  56   Wed Jun 23 06:49:48 2010 AidanMiscHartmann sensorSURF Log -- Day 5, more Hartmann image preliminary analysisNice work!
 

  
  57   Wed Jun 23 22:57:22 2010 James KMiscHartmann sensorSURF Log -- Day 6, Centroiding So in addition to taking steps towards
starting to set stuff up for the experiment
in the lab, I spent a good deal of the day
 10x 
  58   Fri Jun 25 00:11:13 2010 James KMiscHartmann sensorSURF Log -- Day 7, SLED Beam Characterization 
 BeamData.xlsxbeam_pdfs.zipbeamdata.mgsbeam.m 
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