"When trying to use the automated jet_tracking software"

Quick guide to starting a jet in SC3 (SSC)

• Open camViewer (~cxiopr/bin/yagviewer.sh) and use the dropdown list on the right side to select CxiSc3Inline
  • If a nozzle isn't obvious then it has been taken out and send a nasty gram to mhunter2 or rsierra
• Set CXI:SDS:PCM:B:02:PressSP to 300 (use the gui on Pressure Controller B or "caput CXI:SDS:PCM:B:02:PressSP 300" in terminal
• sleep 10s
• check that the readback on the proportionair is 300 (CXI:SDS:PCM:B:02:PRESS box or "caget CXI:SDS:PCM:B:02:PRESS" in terminal
• Set CXI:LC20:SDSB:SetFlowRate to 0.020 (use the gui for HPLC Pump 2 or "caput CXI:LC20:SDSB:SetFlowRate 0.02" in terminal

• watch for the jet on CxiSc3Inline

  Notes

• HPLC flow rates can be set between 0 and 0.05 mL/min, but 0.02-0.03 mL/min will typically give well-behaved (i.e. not realistic) jets
• Proportionair pressures can be set between 250 and 500 psi for these nozzles.  The nozzles will behave differently throughout the pressure range but they shouldn't be damaged.  At higher pressures, a whipping instability might be seen.
  
  

  General: Starting a liquid jet

  This quick SOP assumes a liquid jet has already been installed in one of the two sample chambers.  If a nozzle isn't installed, the below procedure is, of course, useless

  1. Determine which chamber you are starting a liquid jet.  This will usually either be SC1 or SC3 (Also called SSC).
  2. Open the relevant camera screens for the sample chamber.  For controls cameras you can use the camViewer (can call ~cxiopr/bin/yagview.sh) and for DAQ cameras you can use
     
     1. SC1: CxiSc1Inline (Questar, controls camera) and Sc1OffAxis (OffAxis, currently a DAQ camera)
     2. SC3: CxiSc3Inline (Questar, controls camera) and CxiSc3OffAxisSpare (controls camera, might still be gige-cxi-07 is the other option doesn't work)
  3. Open up the HPLC and proportionair controls if they aren't already open
     
     1. Overall SDS software can be found under the Current screen within User Devices of the CXI home screen (typing ~cxiopr/bin/cxihome will open the cxi home screen; these screens are toward the bottom on the left-hand side)
        
     2. The HPLC and proportionair screens can be found in the drop down list shown by clicking on SDS Screens in the middle of the screen on the left-hand side.  A subset of these screens can be found under Control Screens as well.  Why they both exist is a question to be asked at a different time...
     3. Open the HPLC screen for the HPLC supporting the sample chamber you are using (there are four options)
        
        
        1. Generally speaking, HPLC 1 (SDS without another letter) will be supporting SC1.  If we aren't doing mixing experiments, HPLC 2 (SDSB) will be supporting SC3 and there other HPLCs won't be deployed at the beam line
     4. Open the Proportionair screen for the Proportionair supporting the sample chamber you are using (there are two options)
        
        
        1. Generally speaking, ProportionairA (Pressure Controller A) will be supporting SC1.  If we aren't doing mixing experiments, HPLC 2 (Pressure Controller B) will be supporting SC.  These can change.
  4. For GDVN, set the gas pressure to ~300 psi by typing 300 into the setpoint box (PV =CXI:SDS:PCM:B:02:PressSP)  and hit enter.

  Jet tracking Google Drive folder: https://drive.google.com/drive/folders/1I8D_CT8GFwCEtQE5K03lu6-58sPZ_rkA

  jet_tracking software documentation:  https://pswww.slac.stanford.edu/swdoc/releases/jet_tracking

  Step-by-step guide

  1. start hutch python

  Jet Control Overview

  To start ipython for cxi hutch-python3.

   /reg/g/pcds/pyps/apps/hutch-python/cxi/cxipython
  

  There is a soft link in ~cxiopr/bin, so that on cxi machines one can start ipython as follows:

   cxi3
  

  Instances of the jet-tracking control class are automatically loaded in the ipython session.

   In [1]: sc1.control.
   sc1.control.calibrate sc1.control.injector sc1.control.params
   sc1.control.camera sc1.control.jet_calculate sc1.control.set_beam
   sc1.control.diffract sc1.control.jet_move
  
  
  In [1]: sc3.control.
   sc3.control.calibrate sc3.control.injector sc3.control.params
   sc3.control.camera sc3.control.jet_calculate sc3.control.set_beam
   sc3.control.diffract sc3.control.jet_move
  

  JetControl

  Jet tracking control class.

   

  jet_tracking.jet_control.JetControl

  Jet tracking control class using jet_tracking methods

   

  Attributes

   

  jet_tracking.jet_control.JetControl.calibrate()	Calibrate the onaxis camera
  jet_tracking.jet_control.JetControl.jet_calculate()	Track the sample jet and calculate the distance to the x-ray beam
  jet_tracking.jet_control.JetControl.jet_move()	Move the sample jet to the x-ray beam
  jet_tracking.jet_control.JetControl.set_beam(…)	Set the coordinates for the x-ray beam

  Related articles

  • Page:
    Jet_tracking at CXI

Starting a liquid jet

This quick SOP assumes a liquid jet has already been installed in one of the two sample chambers.  If a nozzle isn't installed, the below procedure is, of course, useless

1. Determine which chamber you are starting a liquid jet.  This will usually either be SC1 or SC3 (Also called SSC).
2. Open the relevant camera screens for the sample chamber.  For controls cameras you can use the camViewer (can call ~cxiopr/bin/yagview.sh) and for DAQ cameras you can use
   
   1. SC1: CxiSc1Inline (Questar, controls camera) and Sc1OffAxis (OffAxis, currently a DAQ camera)
   2. SC3: CxiSc3Inline (Questar, controls camera) and CxiSc3OffAxisSpare (controls camera, might still be gige-cxi-07 is the other option doesn't work)
3. Open up the HPLC and proportionair controls if they aren't already open
   
   1. Overall SDS software can be found under the Current screen within User Devices of the CXI home screen (typing ~cxiopr/bin/cxihome will open the cxi home screen; these screens are toward the bottom on the left-hand side)
      
   2. The HPLC and proportionair screens can be found in the drop down list shown by clicking on SDS Screens in the middle of the screen on the left-hand side.  A subset of these screens can be found under Control Screens as well.  Why they both exist is a question to be asked at a different time...
   3. Open the HPLC screen for the HPLC supporting the sample chamber you are using (there are four options)
      
      
      1. Generally speaking, HPLC 1 (SDS without another letter) will be supporting SC1.  If we aren't doing mixing experiments, HPLC 2 (SDSB) will be supporting SC3 and there other HPLCs won't be deployed at the beam line
   4. Open the Proportionair screen for the Proportionair supporting the sample chamber you are using (there are two options)
      
      
      1. Generally speaking, ProportionairA (Pressure Controller A) will be supporting SC1.  If we aren't doing mixing experiments, HPLC 2 (Pressure Controller B) will be supporting SC.  These can change.
4. For GDVN, set the gas pressure to ~300 psi by typing 300 into the setpoint box (PV =CXI:SDS:PCM:B:02:PressSP)  and hit enter.

Jet tracking Google Drive folder: https://drive.google.com/drive/folders/1I8D_CT8GFwCEtQE5K03lu6-58sPZ_rkA

Step-by-step guide

1. start hutch python

Jet Control Overview

To start ipython for cxi hutch-python3.

 /reg/g/pcds/pyps/apps/hutch-python/cxi/cxipython

There is a soft link in ~cxiopr/bin, so that on cxi machines one can start ipython as follows:

 cxi3

Instances of the jet-tracking control class are automatically loaded in the ipython session.

 In [1]: sc1.control.
 sc1.control.calibrate sc1.control.injector sc1.control.params
 sc1.control.camera sc1.control.jet_calculate sc1.control.set_beam
 sc1.control.diffract sc1.control.jet_move


In [1]: sc3.control.
 sc3.control.calibrate sc3.control.injector sc3.control.params
 sc3.control.camera sc3.control.jet_calculate sc3.control.set_beam
 sc3.control.diffract sc3.control.jet_move

Related articles

• Page:
  Jet_tracking at CXI