Transport efficiency studies for light-ion inertial confinement fusion systems using ballistic transport with solenoidal lens focusing

Journal Article · Sat Apr 01 04:00:00 EST 1995 · IEEE Transactions on Plasma Science

DOI:https://doi.org/10.1109/27.376582· OSTI ID:64586

Rose, D V ^[1]; Ottinger, P F ^[2]; Olson, C L ^[3]

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1. JAYCOR, Inc., Vienna, VA (United States)
2. Naval Research Lab., Washington, DC (United States). Plasma Physics Division
3. Sandia National Labs., Albuquerque, NM (United States)

The proposed Laboratory Microfusion Facility (LMF) will require {ge}10 MJ of 30 MeV lithium ions to be transported and focused onto high-gain, high-yield inertial confinement fusion targets. The light-ion extraction diodes as beam sources. Previous work examined the effect of time-of-flight bunching on energy transport efficiency, {eta}{sub t}, under realistic constraints on diode operation, beam transport, and packing. Target design considerations suggest that the instantaneous power efficiency, {Gamma}{sub t}, be maximized near peak power. Because of time-of-flight bunching, peak power occurs at the end of the power pulse for LMF designs. This work examines the effect of power efficiency tuning on {eta}{sub t} for an LMF design using ballistic transport with solenoidal lens focusing. Results indicate that tuning the power pulse to maximize {Gamma}{sub t} at about three-quarters through the pulse provides high power efficiency at the end of the pulse while still maintaining high {eta}{sub t}. In addition to power efficiency tuning, effects on {eta}{sub t} from variations of the diode impedance model and the diode voltage waveform are also examined.

• OSTI ID: 64586
• Journal Information: IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 2 Vol. 23; ISSN ITPSBD; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM OPTICS
BEAM TRANSPORT
FOCUSING
ICF DEVICES
INERTIAL CONFINEMENT
ION BEAM TARGETS
ION BEAMS
LITHIUM IONS
TEST FACILITIES