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playground:startup [2012/06/01 17:37]
carter
playground:startup [2017/04/17 11:41] (current)
jacobs
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 ====== Accelerator Start-up ====== ====== Accelerator Start-up ======
  
-1. **Initial Machine Voltage setup:**+1. **Verify ​Initial Machine Voltage setup:**
  
 Initial conditions on TPS: Initial conditions on TPS:
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-a.  Switch the POWER SUPPLIES to ON, the yellow light should come on. Switch CHAIN MOTORS to ON, lights 1, 2, and 3 should all come on.  Begin to increase the CHARGING VOLTAGE ​ while observing the TERMINAL VOLTAGE and the GRID VOLTAGE. ​ DO NOT allow the GRID VOLTAGE to become more negative than   -10 VDC.  ​+a.  Switch the POWER SUPPLIES to ON, the yellow light should come on. Switch CHAIN MOTORS to ON, lights 1, 2, and 3 should all come on.  Begin to increase the CHARGING VOLTAGE ​ while observing the TERMINAL VOLTAGE and the GRID VOLTAGE. ​ DO NOT allow the GRID VOLTAGE to become more negative than   **-5** VDC.  ​
  
-b. Continue to increase the CHARGING VOLTAGE until you reach the approximate TERMINAL VOLTAGE **__OR__** until the GRID VOLTAGE reaches ​ -10 VDC, **__THEN__** proceed to step 2:+b. Continue to increase the CHARGING VOLTAGE until you reach the approximate TERMINAL VOLTAGE **__OR__** until the GRID VOLTAGE reaches  ​**-5** VDC, **__THEN__** proceed to step 2:     (The GRID VOLTAGE may never reach -5 VDC when running at ultra low Terminal energy, E < 0.300 MV, do the best you can)
  
  
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 **2. Corona Probe Adjustment** **2. Corona Probe Adjustment**
  
-FYI:  The CORONA PROBE CURRENT will rise until it reaches the value set by the BIAS CURRENT. ​ After that, the GRID VOLTAGE will change to keep the CORONA PROBE CURRENT at the set value. ​ The goal is to balance the UPCHARGE and CORONA PROBE POSITION so that you have the desired TERMINAL VOLTAGE and -10 VDC on the GRID VOLTAGE. ​ Do (a) or (b) as needed:+FYI:  The CORONA PROBE CURRENT will rise until it reaches the value set by the BIAS CURRENT. ​ After that, the GRID VOLTAGE will change to keep the CORONA PROBE CURRENT at the set value. ​ The goal is to balance the UPCHARGE and CORONA PROBE POSITION so that you have the desired TERMINAL VOLTAGE and **-5** VDC on the GRID VOLTAGE. ​ Do (a) or (b) as needed:
  
 a. Move the CORONA PROBE POSITION “IN” to make the GRID VOLTAGE more negative. ​ This may require you to adjust the UPCHARGE to maintain TERMINAL VOLTAGE. a. Move the CORONA PROBE POSITION “IN” to make the GRID VOLTAGE more negative. ​ This may require you to adjust the UPCHARGE to maintain TERMINAL VOLTAGE.
playground/startup.1338586633.txt.gz · Last modified: 2012/06/01 17:37 by carter