skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Heavy ion fusion sources

Abstract

In Heavy-Fusion and in other applications, there is a need for high brightness sources with both high current and low emittance. The traditional design with a single monolithic source, while very successful, has significant constraints on it when going to higher currents. With the Child-Langmuir current-density limit, geometric aberration limits, and voltage breakdown limits, the area of the source becomes a high power of the current, A {approx} I{sup 8/3}. We are examining a multi-beamlet source, avoiding the constraints by having many beamlets each with low current and small area. The beamlets are created and initially accelerated separately and then merged to form a single beam. This design offers a number of potential advantages over a monolithic source, such as a smaller transverse footprint, more control over the shaping and aiming of the beam, and more flexibility in the choice of ion sources. A potential drawback, however, is the emittance that results from the merging of the beamlets. We have designed injectors using simulation that have acceptably low emittance and are beginning to examine them experimentally.

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Director. Office of Science. Office of Fusion Energy Sciences, Lawrence Livermore National Laboratory Contract W-7405-ENG-48 (US)
OSTI Identifier:
838046
Report Number(s):
LBNL-54713; HIFAN 1302
R&D Project: Z46010; TRN: US0501232
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Conference
Resource Relation:
Conference: Particle Accelerator Conference PAC, Chicago, IL (US), 01/10/2003; Other Information: PBD: 1 Feb 2003
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 43 PARTICLE ACCELERATORS; ACCELERATORS; BREAKDOWN; BRIGHTNESS; CURRENT DENSITY; DESIGN; FLEXIBILITY; HEAVY IONS; ION SOURCES; SIMULATION

Citation Formats

Grote, D.P., Kwan, J., and Westenskow, G.. Heavy ion fusion sources. United States: N. p., 2003. Web.
Grote, D.P., Kwan, J., & Westenskow, G.. Heavy ion fusion sources. United States.
Grote, D.P., Kwan, J., and Westenskow, G.. Sat . "Heavy ion fusion sources". United States. https://www.osti.gov/servlets/purl/838046.
@article{osti_838046,
title = {Heavy ion fusion sources},
author = {Grote, D.P. and Kwan, J. and Westenskow, G.},
abstractNote = {In Heavy-Fusion and in other applications, there is a need for high brightness sources with both high current and low emittance. The traditional design with a single monolithic source, while very successful, has significant constraints on it when going to higher currents. With the Child-Langmuir current-density limit, geometric aberration limits, and voltage breakdown limits, the area of the source becomes a high power of the current, A {approx} I{sup 8/3}. We are examining a multi-beamlet source, avoiding the constraints by having many beamlets each with low current and small area. The beamlets are created and initially accelerated separately and then merged to form a single beam. This design offers a number of potential advantages over a monolithic source, such as a smaller transverse footprint, more control over the shaping and aiming of the beam, and more flexibility in the choice of ion sources. A potential drawback, however, is the emittance that results from the merging of the beamlets. We have designed injectors using simulation that have acceptably low emittance and are beginning to examine them experimentally.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Feb 01 00:00:00 EST 2003},
month = {Sat Feb 01 00:00:00 EST 2003}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: