U.S. Department of EnergyOffice of Scientific and Technical Information
SLIM, Short-pulse Technology for High Gradient Induction Accelerators
Abstract
A novel short-pulse concept (SLIM) suited to a new generation of a high gradient induction particle accelerators is described herein. It applies advanced solid state semiconductor technology and modern microfabrication techniques to a coreless induction method of charged particle acceleration first proven on a macro scale in the 1960's. Because this approach avoids use of magnetic materials there is the prospect of such an accelerator working efficiently with accelerating pulses in the nanosecond range and, potentially, at megahertz pulse rates. The principal accelerator section is envisioned as a stack of coreless induction cells, the only active element within each being a single, extremely fast (subnanosecond) solid state opening switch: a Drift Step Recovery Diode (DSRD). Each coreless induction cell incorporates an electromagnetic pulse compressor in which inductive energy developed within a transmission-line feed structure over a period of tens of nanoseconds is diverted to the acceleration of the passing charge packet for a few nanoseconds by the abrupt opening of the DSRD switch. The duration of this accelerating output pulse--typically two-to-four nanoseconds--is precisely determined by a microfabricated pulse forming line connected to the cell. Because the accelerating pulse is only nanoseconds in duration, longitudinal accelerating gradients approaching 100 MeV permore »
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 944554
- Report Number(s):
- SLAC-PUB-13477
Journal ID: ISSN 0031-2460; PLACBD; TRN: US0900591
- DOE Contract Number:
- AC02-76SF00515
- Resource Type:
- Journal Article
- Journal Name:
- Particle Accelerators
- Additional Journal Information:
- Journal Name: Particle Accelerators; Journal ID: ISSN 0031-2460
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; ACCELERATION; ACCELERATORS; AVAILABILITY; BEAM CURRENTS; BREAKDOWN; CHARGED PARTICLES; COMPRESSORS; ELECTROMAGNETIC PULSES; INDUCTION; IONIZING RADIATIONS; LINEAR ACCELERATORS; MAGNETIC MATERIALS; METERS; OPENINGS; Accelerators, Other,ACCPHY, ENG
Citation Formats
Arntz, Floyd, /Diversified Tech., Bedford, Kardo-Sysoev, A, /Ioffe Phys. Tech. Inst., Krasnykh, A, and /SLAC. SLIM, Short-pulse Technology for High Gradient Induction Accelerators. United States: N. p., 2008.
Web.
Arntz, Floyd, /Diversified Tech., Bedford, Kardo-Sysoev, A, /Ioffe Phys. Tech. Inst., Krasnykh, A, & /SLAC. SLIM, Short-pulse Technology for High Gradient Induction Accelerators. United States.
Arntz, Floyd, /Diversified Tech., Bedford, Kardo-Sysoev, A, /Ioffe Phys. Tech. Inst., Krasnykh, A, and /SLAC. 2008.
"SLIM, Short-pulse Technology for High Gradient Induction Accelerators". United States. https://www.osti.gov/servlets/purl/944554.
@article{osti_944554,
title = {SLIM, Short-pulse Technology for High Gradient Induction Accelerators},
author = {Arntz, Floyd and /Diversified Tech., Bedford and Kardo-Sysoev, A and /Ioffe Phys. Tech. Inst. and Krasnykh, A and /SLAC},
abstractNote = {A novel short-pulse concept (SLIM) suited to a new generation of a high gradient induction particle accelerators is described herein. It applies advanced solid state semiconductor technology and modern microfabrication techniques to a coreless induction method of charged particle acceleration first proven on a macro scale in the 1960's. Because this approach avoids use of magnetic materials there is the prospect of such an accelerator working efficiently with accelerating pulses in the nanosecond range and, potentially, at megahertz pulse rates. The principal accelerator section is envisioned as a stack of coreless induction cells, the only active element within each being a single, extremely fast (subnanosecond) solid state opening switch: a Drift Step Recovery Diode (DSRD). Each coreless induction cell incorporates an electromagnetic pulse compressor in which inductive energy developed within a transmission-line feed structure over a period of tens of nanoseconds is diverted to the acceleration of the passing charge packet for a few nanoseconds by the abrupt opening of the DSRD switch. The duration of this accelerating output pulse--typically two-to-four nanoseconds--is precisely determined by a microfabricated pulse forming line connected to the cell. Because the accelerating pulse is only nanoseconds in duration, longitudinal accelerating gradients approaching 100 MeV per meter are believed to be achievable without inciting breakdown. Further benefits of this approach are that, (1) only a low voltage power supply is required to produce the high accelerating gradient, and, (2) since the DSRD switch is normally closed, voltage stress is limited to a few nanoseconds per period, hence the susceptibility to hostile environment conditions such as ionizing radiation, mismatch (e.g. in medical applications the peak beam current may be low), strong electromagnetic noise levels, etc is expected to be minimal. Finally, we observe the SLIM concept is not limited to linac applications; for instance, it could be employed to both accelerate the beam and to stabilize the superbunch mode of operation in circular track machines.},
doi = {},
url = {https://www.osti.gov/biblio/944554},
journal = {Particle Accelerators},
issn = {0031-2460},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 16 00:00:00 EST 2008},
month = {Tue Dec 16 00:00:00 EST 2008}
}
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