A fast UV/visible pyrometer for shock temperature measurements to 20 000 K

Journal Article · Fri Dec 01 00:00:00 EST 1989 · Review of Scientific Instruments; (USA)

DOI:https://doi.org/10.1063/1.1140479· OSTI ID:7166375

Radousky, H B; Mitchell, A C ^[1]

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1. Lawrence Livermore National Laboratory, Livermore, California 94550 (US)

An ultraviolet/visible pyrometer is described which can measure shock temperatures from 3000 to 20 000 K. The system is modular, and in general consists of six photomultiplier tubes and two linear intensified diode array/spectrograph systems which can cover the range from 250 to 800 nm. Extension of the pyrometer's capabilities into the ultraviolet is necessary for accurate measurements above 8000 K. The nature of the shock environment requires the photomultiplier tubes to have rise times on the order of 2 ns, with a typical experiment lasting between 20 and 500 ns. The system measures absolute intensity, and is calibrated against a known tungsten lamp prior to each experiment. The highest temperature measured was 18 300 K for fluid Xe. The targets needed to contain this type of cryogenic sample are described as well.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7166375
• Journal Information: Review of Scientific Instruments; (USA), Vol. 60:12; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
PYROMETERS
DESIGN
SHOCK WAVES
TEMPERATURE MEASUREMENT
CALIBRATION
DIODE TUBES
MEASURING INSTRUMENTS
OPTICAL SYSTEMS
PHOTOMULTIPLIERS
SHOCK HEATING
ULTRAHIGH TEMPERATURE
ULTRAVIOLET RADIATION
VERY HIGH PRESSURE
VISIBLE RADIATION
XENON
ELECTROMAGNETIC RADIATION
ELECTRON TUBES
ELEMENTS
FLUIDS
GASES
HEATING
NONMETALS
PHOTOTUBES
PLASMA HEATING
RADIATIONS
RARE GASES
440600* - Optical Instrumentation- (1990-)