Threshold bubble chamber for measurement of knock-on DT neutron tails from magnetic and inertial confinement experiments

Journal Article · Wed Jan 01 00:00:00 EST 1997 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1147798· OSTI ID:452842

Fisher, R K ^[1]; Zaveryaev, V S ^[2]; Trusillo, S V ^[3]

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1. General Atomics, San Diego, California 92186 (United States)
2. Russian Research Centre Kurchatov Institute, Nuclear Fusion Institute, Moscow (Russian Federation)
3. Russian Federal Nuclear Centre Experimental Physics Institute, Arzamas (Russian Federation)

We propose a new {open_quotes}threshold{close_quotes} bubble chamber detector for measurement of knock-on neutron tails. These energetic neutrons result from fusion reactions involving energetic fuel ions created by alpha knock-on collisions in tokamak and other magnetic confinement experiments, and by both alpha and neutron knock-on collisions in inertial confinement fusion (ICF) experiments. The energy spectrum of these neutrons will yield information on the alpha population and energy distribution in tokamaks, and on alpha target physics and {rho}R measurements in ICF experiments. The bubble chamber should only detect neutrons with energies above a selectable threshold energy controlled by the bubble chamber pressure. The bubble chamber threshold mechanism, detection efficiency, and proposed applications to the International Thermonuclear Experimental Reactor and National Ignition Facility experiments will be discussed. {copyright} {ital 1997 American Institute of Physics.}

• DOE Contract Number: FG03-92ER54150
• OSTI ID: 452842
• Report Number(s): CONF-960543-; ISSN 0034-6748; TRN: 97:006593
• Journal Information: Review of Scientific Instruments, Vol. 68, Issue 1; Conference: 11. annual high-temperature plasma diagnostics conference, Monterey, CA (United States), 12-16 May 1996; Other Information: PBD: Jan 1997
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
PLASMA DIAGNOSTICS
BUBBLE CHAMBERS
ICF DEVICES
TOKAMAK DEVICES
DEUTERIUM
INERTIAL CONFINEMENT
KNOCK-ON REACTIONS
THERMONUCLEAR REACTIONS
MAGNETIC CONFINEMENT
ALPHA PARTICLES
NEUTRONS
ENERGY SPECTRA
plasma inertial confinement
plasma toroidal confinement
fusion reactor ignition
plasma collision processes