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Title: Induction Accelerator Efficiency at 5 Hz

Abstract

We simulate fusion power plant driver efficiency by pulsing small induction cores at 5 Hz (a typical projected power plant repetition rate), with a resistive load in the secondary winding that is scaled to simulate the beam loading for induction acceleration. Starting from a power plant driver design that is based on other constraints, we obtain the core mass and acceleration efficiency for several energy ranges of the driver accelerator and for three magnetic alloys. The resistor in the secondary is chosen to give the same acceleration efficiency, the ratio of beam energy gain to energy input to the core module (core plus acceleration gap), as was computed for the driver. The pulser consists of a capacitor switched by FETs, Field Effect Transistors, which are gated on for the desired pulse duration. The energy to the resistor is evaluated during the portion of the pulse that is adequately flat. We present data over a range of 0.6 to 5 {mu}s pulse lengths. With 1 {mu}s pulses, the acceleration efficiency at 5 Hz is measured to be 75%, 52%, and 32% for thin-tape-wound cores of nanocrystalline, amorphous, and 3% silicon steel materials respectively, including only core losses. The efficiency increases formore » shorter pulse durations.« less

Authors:
;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab., CA (US)
Sponsoring Org.:
USDOE Director, Office of Science (US)
OSTI Identifier:
767594
Report Number(s):
LBNL-45683; HIFAN 1037
R&D Project: Z46101; TRN: US0100997
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Conference
Resource Relation:
Conference: 13th International Heavy Ion Fusion Symposium HIF2000, San Diego CA (US), 03/12/2000--03/17/2000; Other Information: PBD: 5 Oct 2000
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; EFFICIENCY; ENERGY RANGE; FIELD EFFECT TRANSISTORS; HEAVY IONS; INDUCTION; POWER PLANTS

Citation Formats

Molvik, A.W., and Faltens, A. Induction Accelerator Efficiency at 5 Hz. United States: N. p., 2000. Web.
Molvik, A.W., & Faltens, A. Induction Accelerator Efficiency at 5 Hz. United States.
Molvik, A.W., and Faltens, A. Thu . "Induction Accelerator Efficiency at 5 Hz". United States. https://www.osti.gov/servlets/purl/767594.
@article{osti_767594,
title = {Induction Accelerator Efficiency at 5 Hz},
author = {Molvik, A.W. and Faltens, A.},
abstractNote = {We simulate fusion power plant driver efficiency by pulsing small induction cores at 5 Hz (a typical projected power plant repetition rate), with a resistive load in the secondary winding that is scaled to simulate the beam loading for induction acceleration. Starting from a power plant driver design that is based on other constraints, we obtain the core mass and acceleration efficiency for several energy ranges of the driver accelerator and for three magnetic alloys. The resistor in the secondary is chosen to give the same acceleration efficiency, the ratio of beam energy gain to energy input to the core module (core plus acceleration gap), as was computed for the driver. The pulser consists of a capacitor switched by FETs, Field Effect Transistors, which are gated on for the desired pulse duration. The energy to the resistor is evaluated during the portion of the pulse that is adequately flat. We present data over a range of 0.6 to 5 {mu}s pulse lengths. With 1 {mu}s pulses, the acceleration efficiency at 5 Hz is measured to be 75%, 52%, and 32% for thin-tape-wound cores of nanocrystalline, amorphous, and 3% silicon steel materials respectively, including only core losses. The efficiency increases for shorter pulse durations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Oct 05 00:00:00 EDT 2000},
month = {Thu Oct 05 00:00:00 EDT 2000}
}

Conference:
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