IOC reboot

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Revision as of 14:04, 7 November 2016 by Gaskelld (Talk | contribs) (Feedback parameters)

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IOC is iochacp - might need to reboot from the hall. Can try to connect via terminal server:

telnet cptsv1 2002 (update 11/7/2016 0 not sure this is true anymore)

Also - crate connected to remote power strip - cptps2 (outlet 2). Call Dave/Alex for password.

Before rebooting, make sure the cavity locking/unlocking script is OFF.

After rebooting, the quarter wave plate and half wave plate will probably be set incorrectly. Also, some power meter calibration factors need to be updated and the feedback parameters updated.

Power meter calibrations

  1. caput COMPTON_PW3R_S2_ca.B 7.9264
  2. caput COMPTON_PW2R_S2_ca.B 11.833
  3. caput COMPTON_LASERPCAV_ca.A 13630

Feedback parameters

  1. caput COMPTON_SERVO_GAINao 148
  2. caput COMPTON_SERVO_SEUILao 0.55

Slow Ramp Parameters

  1. caput COMPTON_SLOWRAMP_AMPLITUDE 0.02
  2. caput COMPTON_SLOWRAMP_PERIOD 180.0

Initialize the QWP and HWP

  1. Send wave plates to 0 degrees
  2. caput COMPTON_ORX_bo 1
  3. caput COMPTON_ORZ_bo 1
  4. wait 2 minutes
  5. caput COMPTON_PVAL_X_ao 11909
  6. caput COMPTON_PVAL_Z_ao 5725
  7. caput COMPTON_LMOVX_bo 1
  8. caput COMPTON_LMOVZ_bo 1

This should set the QWP angle to 47.63 degrees and the HWP to 22.9 degrees

Set exit line QWP

  1. Send QWP HOME
  2. caput COMPTON_ORY_bo 1
  3. Wait 2 minutes
  4. Set angle to approximately equalize power in integrating spheres
  5. caput COMPTON_PVAL_Y_ao 11162
  6. caput COMPTON_RMOVY_bo 1