Doppler velocimeter for laser accelerated targets

Journal Article · Mon Dec 01 04:00:00 EST 1980 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1136145· OSTI ID:6788089

Obenschain, S P; McLean, E A; Gold, S H

A doppler velocimeter utilizing a spectrograph and a short-pulse laser probe is described which provides good spatial (20 ..mu..m) and subnanosecond temporal resolution. This system has been used to measure the velocity profiles of targets ablatively accelerated to very high velocities by a high-power laser beam. In comparison to systems employing interferometric techniques, this velocimeter significantly relaxes requirements on the target surface being examined and the time resolution needed to measure velocities of rapidly accelerating surfaces.

• Research Organization: Naval Research Laboratory, Washington, D.C. 20375
• OSTI ID: 6788089
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 51:12; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ABLATION
ACCELERATION
COMPARATIVE EVALUATIONS
DOPPLER EFFECT
INTERFEROMETERS
LASER TARGETS
LASERS
MEASURING INSTRUMENTS
PERFORMANCE
PROBES
PULSES
RADIATION EFFECTS
RESOLUTION
SPATIAL RESOLUTION
SPECTROMETERS
SURFACES
TARGETS
TIME RESOLUTION
TIMING PROPERTIES
VELOCIMETERS
VELOCITY