Spice modeling of a FET-switched induction accelerator cell
A PSpice model of an induction accelerator cell switched by field-effect transistors (FETS) has been developed to simulate the modulator`s circuit performance and induction core flux behavior. A FET switched induction cell has been built that generate 4-kV, 1 {mu}s pulses at pulse rates exceeding 100 kHz. The circuit architecture provides for core reset between pulses and produces bursts of pulses that are variable in amplitude, pulse width and prf. The transistor switching array, energy storage capacitors, reset circuit, and cell core are all combined into a compact, low-impedance package. This high-prf induction cell is being developed as the accelerating element for a proposed heavy-ion recirculator, which is an arrangement of many small induction mM in a 30m diameter circle. The recirculator will accept 10-MeV ions from a linear ion accelerator, under development at the Lawrence Berkeley Laboratory, and continue their acceleration to 60-MeV by repeatedly passing the ion beam through the many 5-kV cells. As the ions gain speed, the cell prf must also keep pace by increasing from 70 kHz to 200 kHz. Simple PSpice models have been used to predict B-H loop behavior in the magnetic core and to analyze circuit performance. Simulations of the induction cell will be presented and compared with experimental data.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10177963
- Report Number(s):
- UCRL-JC--112511; CONF-930616--19; ON: DE93018662
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
426000
43 PARTICLE ACCELERATORS
430200
BEAM DYNAMICS, FIELD CALCULATIONS, AND ION OPTICS
COMPONENTS
ELECTRON DEVICES AND CIRCUITS
COMPUTERIZED SIMULATION
ELECTRONIC CIRCUITS
FIELD EFFECT TRANSISTORS
HEAVY ION ACCELERATORS
HEAVY ION FUSION REACTIONS
INDUCTION
MATHEMATICAL MODELS
MODULATION
P CODES