40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop

TCS elog, Page 5 of 5  Not logged in

List |  Find |  Login |  Help

Full | Summary | Threaded     -- All entries -- Last day Last 3 Days Last week Last month Last 3 Months Last 6 Months Last Year -- Type -- Laser Lab Infrastructure Things to Buy Electronics Computing Misc  249 Entries

Goto page Previous  1, 2, 3, 4, 5

ID Date Author Type Category Subject Text   78   Mon Jul 26 18:47:12 2010 James K Misc Hartmann sensor Hex Grid Analysis Errors and Thermal Defocus Noise My previous eLog details how the noise in Hartmann Sensor defocus measurements appears to vary with ambient light. New troubleshooting      91   Tue Aug 17 22:34:14 2010 rana Misc General ETM temperature after a 1W step This attachment is a Shockwave Flash animation of the iLIGO ETM getting a 1 W beam with a 3.5 cm radius getting fully absorbed onto      112   Thu Feb 24 14:20:55 2011 Aidan Misc Ring Heater aLIGO H2 Ring Heater Pics  Here are some pictures of the ring heater segments destined for the H2 Y-arm this year.      116   Tue Mar 1 10:47:18 2011 Aidan Misc Hartmann sensor Electron to Counts conversion efficiency Using some of the old data from James (attached below), I calculated the CCD conversion efficiency (CE) from electrons to bits (Counts).      156   Tue Nov 29 09:13:49 2011 rana Misc LIGO 3G Switching 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      157   Tue Jun 5 17:25:43 2012 Alex Mauney Misc aLIGO Modeling 6/5/12 Daily Summary - Had a meeting to talk about the basics of LIGO (esp. TCS) and discuss the project - Created COMSOL model for the test      158   Wed Jun 6 16:54:09 2012 Alex Mauney Misc aLIGO Modeling 6/6/12 Daily Summary - Got access to and started working with SIS on Rigel1 - Fixed SVN issues      159   Thu Jun 7 00:23:11 2012 Aditi Mittal Misc LIGO 3G Summary June 5 and June 6, 2012  June 5 -Discussed the actual project outline  -Installed Comsol on the system      160   Thu Jun 7 16:50:16 2012 Alex Mauney Misc aLIGO Modeling 6/7/12 Daily Summary - Created a COMSOL model with thermal deformations - Added non-symmetrical heating to cause astigmatism      161   Thu Jun 7 23:24:56 2012 Aditi Mittal Misc LIGO 3G Summary June 7, 2012 -Created a COMSOL model for variation of temperature in two mass system. -Used the above model for cryogenic      162   Fri Jun 8 16:36:47 2012 Alex Mauney Misc aLIGO Modeling 6/8/12 Daily Summary - Tried to fix COMSOL error using the (ts) module, ended up emailing support as the issue is new in 4.3      163   Fri Jun 8 23:51:13 2012 Aditi Mittal Misc LIGO 3G Summary June 8, 2012 -Created a COMSOL model for cryogenically shielded test mass with compensation plate. -Analyzed the behavior of the model      164   Mon Jun 11 17:11:01 2012 Alex Mauney Misc aLIGO Modeling 6/11/12 Daily Summary - Fixed the (ts) model, got strange results that indicate that the antisymmetric heating mode is much more prominent than previously      165   Mon Jun 11 20:53:31 2012 Aditi Mittal Misc LIGO 3G Summary June 11, 2012  -Continued with the same cryogenic model created and varied the length of  outer shield and studied the temperature variation      166   Wed Jun 13 16:36:14 2012 Alex Mauney Misc aLIGO Modeling 6/12 and 6/13 Daily Summary - Realized that the strange deformations that we were seeing only occur on the face nearest the ring heater, and not on the face      167   Thu Jun 14 05:37:30 2012 Aditi Mittal Misc LIGO 3G Summary June 13, 2012 -Derived formula for manual calculation of temperature due to total influx. -Compared the results by COMSOL and      168   Thu Jun 14 16:51:03 2012 Alex Mauney Misc aLIGO Modeling 6/14/12 Daily Summary - Plugged the output of the model with uniform heating into SIS using both modification of the radius of curvature, and direct importation      169   Mon Jun 18 16:30:36 2012 Alex Mauney Misc aLIGO Modeling 6/18/12 Daily Summary - Verified that the SIS output does match satisfy the equations for Gaussian beam propagation - Investigated how changing the amount      170   Mon Jun 18 23:42:39 2012 Aditi Mittal Misc LIGO 3G Cryogenic Shielding  -Read about blue team design for maximum power budget. -Read third generation talks to get      171   Tue Jun 19 16:24:52 2012 Alex Mauney Misc aLIGO Modeling 6/19/12 Daily Summary - Did more modeling for different levels of heating and different mesh densities for the SIS input.      172   Wed Jun 20 16:44:58 2012 Alex Mauney Misc aLIGO Modeling 6/20/12 Daily Summary - Attended a lot of meetings (Safety, LIGO Orientation) - Finished draft of week 3 report      173   Thu Jun 21 11:16:27 2012 Aditi Mittal Misc LIGO 3G Summary June 19 and 20, 2012  -Attented LIGO orientation meeting and safety session. -Prepared 3 week report      174   Thu Jun 21 16:54:45 2012 Alex Mauney Misc aLIGO Modeling 6/21/12 Daily Summary - Paper edits and more data generation for the paper (lower resolution grid data) - Attended a talk on LIGO      175   Thu Jun 21 18:35:44 2012 Aditi Mittal Misc LIGO 3G Summary 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 Mittal Misc LIGO 3G Summary June 26, 2012 - Discussed the further project with Dr. Brooks. -Tried to derive formula for the      177   Wed Jun 27 16:43:56 2012 Alex Mauney Misc aLIGO Modeling 6/27/12 Daily Summary Plan for building the model - Find the fields that would be incident on the beam splitter from each arm (This      178   Thu Jun 28 16:27:37 2012 Alex Mauney Misc aLIGO Modeling 6/28/12 Daily Summary - Finished the MatLab code that both combines two fields and simulates the adjustment of the beamsplitter to minimize the power out      179   Fri Jun 29 15:51:24 2012 Aditi Mittal Misc LIGO 3G Summary June 28 and 29, 2012  -Discussed the project outline for next 6 weeks. -made a write up for the tasks. (attached)      180   Mon Jul 9 16:54:17 2012 Alex Mauney Misc aLIGO Modeling 7/9/12 Summary Made a COMSOL model that can include CO2 laser heating, self heating, and ring heating Figured out how to run SIS out of      188   Thu Sep 21 18:56:53 2017 awade Misc Borrowed Borrowed thorlabs power meter Borrowed thorlabs power meter on 21 Sep 2017.  It is on the south table of the ATF lab.      223   Fri Oct 26 09:49:47 2018 Aidan Misc Optics Starting 80C cure of epoxy I've started an 80C cure of two materials bonded by EPOTEK 353ND. The objective is to see (after curing) how much the apparent glass      243   Wed Oct 30 12:13:14 2019 Jon Misc Delivery Note New lab hardware Ian and I moved some new hardware into the lab, shown in the below photos. It is from the shipment of loaned      245   Mon Jul 26 16:23:03 2021 Aidan Misc Flood Lab flooded from broken pipe leading to sump room   Koji: QIL/TCS entrance flooding.      246   Tue Jul 27 08:39:33 2021 Aidan Misc Flood Tuesday (27-Jul) morning check - lab looks okay I checked the lab this morning. It was dry and there wall was in the same state as yesterday.      248   Wed Aug 25 11:28:56 2021 Aidan Misc Flood Lab flooded from broken pipe leading to sump room 11:29AM - Lab has flooded again this morning. I'm calling PMA. Looks to be the same issue as before.      249   Thu Aug 26 09:00:39 2021 Aidan Misc Flood Lab flooded from broken pipe leading to sump room Some photos of water and clean-up. Summary: I came into the lab around 11:30AM and found water on the floor in the      90   Tue Aug 17 16:31:55 2010 Aidan Things to Buy Laser Bought a laser diode from Thorlabs for HWS http://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 Aidan Things to Buy Laser Bought a laser diode from Thorlabs for HWS It arrived on Friday.      106   Fri Feb 18 13:26:23 2011 Aidan Things to Buy Delivery Note First parts of Bosch framing have arrived from Valin The first pieces of the Bosch framing have arrived from Valin Corporation. These are just small pieces such as the fasteners and      108   Wed Feb 23 18:04:38 2011 Aidan Things to Buy Delivery Note First parts of Bosch framing have arrived from Valin                                111   Thu Feb 24 13:35:41 2011 Aidan Things to Buy Delivery Note Bosch framing has arrived  The custom pieces of the Bosch framing have arrived. Transportation is currently moving them downstairs to the lab. The packing      117   Tue Mar 1 11:19:34 2011 Aidan Things to Buy Delivery Note MFF001 flipper mirror has arrived  The Thorlabs MFF001 flipper mirror recommended by Bram has arrived. The delivery note is attached.      118   Tue Mar 1 11:21:37 2011 Aidan Things to Buy Delivery Note More Bosch framing parts - angle connectors  Another box of Bosch framing parts arrived today. The delivery note is attached.      124   Tue Mar 8 18:57:50 2011 Aidan Things to Buy Delivery Note Fiber optics cable and Bosch Fastener        133   Mon Apr 4 13:13:23 2011 Aidan Things to Buy Delivery Note Newfocus 5102 mirrors and Firewire extension cable have arrived  See attached delivery note ...      136   Sun Apr 17 14:59:36 2011 Aidan Things to Buy Delivery Note L-Com patch panel, Newport lenses, Thorlabs fibers delivery notes        139   Mon Apr 18 15:06:53 2011 Aidan Things to Buy Hartmann sensor Ordered 2" optics from Newport  Given that the HWS requires several 2" optics to handle the big beam size, I've ordered the following items from Newport:      232   Mon Jul 22 18:44:53 2019 Edita Bytyqi Things to Buy General Need to Order Gloves Small/Medium size gloves need to be ordered in order to handle the optics carefully.      235   Thu Jul 25 09:13:36 2019 Jon Things to Buy General Need to Order Gloves New gloves are ordered for the TCS and QIL labs. They arrive tomorrow (Friday).

Goto page Previous  1, 2, 3, 4, 5

ELOG V3.1.3-