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[[Measurement Plans]] [[Laser Noise Couplings]] [http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/40mDCdetect.pdf Proposal for a Homodyne (DC) Detection Experiment at the LIGO Caltech 40-Meter Laboratory, LIGO-T050086-00-R 6/20/2005] [http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/40mDetect_050719.pdf Plans for DC Readout Experiment at the 40m Lab, G050324-00-R, 7/19/05] <<ImageLink(http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/DCreadout_InVacLayout.jpg,width=500)>> [http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/DCreadout_InVacLayout.jpg In-vacuum layout drawing] [http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/DC_Detect_wiring.pdf DC Detection Wiring diagram 8/31/06] Older versions and block diagrams: * [http://www.ligo.caltech.edu/~rward/dcreadout/OOwiring.pdf] * [http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/DCdetectWiring.pdf] * [http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/D060096-00-40M_DC_Detection_Wiring.pdf] * [http://www.ligo.caltech.edu/~swaldman/DitherLock_Strawman_V3.pdf] |
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http://www.ligo.caltech.edu/~rward/dcreadout/OOwiring.pdf Rob's controls block diagram: http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/DCdetectWiring.pdf Jay's wiring diagram D060096 3/30/06: http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/D060096-00-40M_DC_Detection_Wiring.pdf Sam's schematic alignment digital controls http://www.ligo.caltech.edu/~swaldman/DitherLock_Strawman_V3.pdf |
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| [[DC Readout Electronics]] |
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| Vacuum opening [[Plan of Action]] | DC readout installation during [[Vent_Sep_2006]] Post-vent [[Planned Measurements and Procedures]] [[Lessons Learned]] in preparation for next generation |
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| = Next Generation DC Readout Notes = * Put the resistors on the PD block, not the nipple. * Wider separation for the PDs so the ghost beam can get wedged out. * Black glass ring around the PD cans to catch the 1st ghost beam. * Black glass dumps all over the place for the leak throughs. Optic mounts should have their own dumps. * Don't use any of the Piezo-Jena crap. * Don't use copper for the OMC body. All fused-silica, all the time. * Don't use a teensy mirror in the OMC. * Make both curved mirrors on a OMMT movable? And Bigger? * always draw ALL the dogs for EVERYTHING * CVI mirrors coated for 45P don't get better than ~98% reflectivity |
== DC Photodiode Preamp == attachment:DCPD_12_12_06_new.png attachment:DCPD_12_12_06_new.pdf -------- |
Version 0.1 DC Readout / OMC System
[http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/40mDCdetect.pdf Proposal for a Homodyne (DC) Detection Experiment at the LIGO Caltech 40-Meter Laboratory, LIGO-T050086-00-R 6/20/2005]
[http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/40mDetect_050719.pdf Plans for DC Readout Experiment at the 40m Lab, G050324-00-R, 7/19/05]
[http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/DCreadout_InVacLayout.jpg In-vacuum layout drawing]
[http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/DC_Detect_wiring.pdf DC Detection Wiring diagram 8/31/06]
Older versions and block diagrams:
[http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/DCdetectWiring.pdf]
[http://www.ligo.caltech.edu/~cit40m/Docs/DCdetect/D060096-00-40M_DC_Detection_Wiring.pdf]
[http://www.ligo.caltech.edu/~swaldman/DitherLock_Strawman_V3.pdf]
See [http://www.ligo.caltech.edu/~rward/dcreadout/ Rob Ward's DC Readout page].
DC readout installation during Vent_Sep_2006
Post-vent Planned Measurements and Procedures
Lessons Learned in preparation for next generation
DC Photodiode Preamp
attachment:DCPD_12_12_06_new.png attachment:DCPD_12_12_06_new.pdf