The separatrix radius measurement of field-reversed configuration plasma in FRX-L

Conference · Thu Jan 01 00:00:00 EST 2004

DOI:https://doi.org/10.1063/1.1789618· OSTI ID:977553

Zhang, S ^[1]; Tejero, E M ^[2]; Taccetti, J M ^[3]; Wurden, G A ^[4]; Intrator, Thomas; Waganaar, W J ^[5]

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1. Shouyin
2. Erik M.
3. Jose Martin
4. Glen A.
5. William J.

Magnetic pick-up coils and single turn flux loops are installed on the FRX-L device. The combination of the two measurements provides the excluded flux radius that approximates the separatrix radius of the field-reversed configuration plasma. Arrays of similar probes are used to map out local magnetic field dynamics beyond both ends of the theta-coil confinement region to help understand the effects of cusp locations on flux trapping during the FRC formation process. Details on the probe design and system calibrations are presented. The overall system calibration of excluded flux radius measurement is examined by replacing FRC plasma with a known radius aluminum conductor cylinder.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• OSTI ID: 977553
• Report Number(s): LA-UR-04-2566; TRN: US1002944
• Resource Relation: Journal Volume: 75; Journal Issue: 10; Conference: Submitted to: 15th topical conference on high-temperature plasma diagnostics, 19-22 April 2004, San Diego, California
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALUMINIUM
CALIBRATION
CONFINEMENT
CUSPED GEOMETRIES
DESIGN
FIELD-REVERSED THETA PINCH DEVICES
MAGNETIC FIELDS
PLASMA
PLASMA DIAGNOSTICS
PROBES
TRAPPING