Time-of-flight analyzer for ion end loss of a mirror plasma

Journal Article · Fri Apr 01 04:00:00 EST 1988 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1139840· OSTI ID:5341531

Petty, C C; Smith, D K; Smatlak, D L

A time-of-flight analyzer has successfully been used to measure the extracted charge-state distribution and impurity level of an ECRH mirror plasma. End-loss temperatures for each ion species have been determined from the rise time of the analyzer output pulses. Ions entering the line-of-sight device are first accelerated by a two-aperture lens and are then focused with an einzel lens. Electrostatic deflection plates chop the ion beam into short pulses which travel down a 1.20-m tube to an electron multiplier. Ion spectra are typically summed at a rate of 1 kHz using a hardware signal averager.

• Research Organization: Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
• OSTI ID: 5341531
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 59:4; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
BEAM ANALYZERS
DESIGN
ECR HEATING
ELECTROSTATIC ANALYZERS
ELECTROSTATIC LENSES
HEATING
HIGH-FREQUENCY HEATING
LENSES
MAGNETIC MIRRORS
MEASURING INSTRUMENTS
OPEN PLASMA DEVICES
PLASMA DIAGNOSTICS
PLASMA HEATING
PULSE RISE TIME
SPACE CHARGE
SPECTROMETERS
THERMONUCLEAR DEVICES
TIME-OF-FLIGHT SPECTROMETERS
TIMING PROPERTIES