10/9/18

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Completed

  • Created series of GPT simulations using Mamun's 1mA run back in mid august (8/16/18 and 8/17/18)
  • Wrote up analytic derivation of the net force on the ion due to the anode and magnetizing solenoid. (See Research Notes and Documents)
  • Measured diameter of beam pipe in the vicinity of the magnetizing solenoid and two corrector solenoids (within the first meter from the photocathode).
  • Created GTS field map layout (using gnuplot), which shows the E-field from the gun and B-field from the magnetizing solenoid, as well as the locations of the cathode, anode, mag. solenoid, and two corrector solenoids.

In Progress

  • Continuing series of GPT simulations. Will try making the anode unbiased. Need to extend the field maps from z=0.14m to 0.25m in order to cover the range of the magnetizing solenoid (or at least until the E-field from the anode is essentially zero).
  • Using GPT (GDFMGO) to optimize the E-field of the biased anode and B-field of the magnetizing solenoid in order to determine the conditions for an ion to be trapped between them.
  • Writing up analytic derivation of the net force on the ion due to the anode and magnetizing solenoid.

Future Work

  • Will be taking BPM measurements of the GTS electron beam soon in order to see characteristic frequencies of trapped ions within the electron beam.


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