Features
- Sub-µsec duration flashes from 250 to 750 nsec
- high frequency of repetition to 1 µsec minimum between pulses
- small discharge (point source) size
- Schlieren, widely varied collimation and UV optics
- compact size with high discharge energies, 2 to 24 joules per pulse
- optional Argon Gas operation for improved spatial stability
- built-in internal alignment light source
- high-efficiency electrical to optical conversion
- externally adjustable high voltage
Applications
- Dynamic Schlieren Imaging
- Shadowgraph Image Analysis
- Flash and Fluorescent Spectroscopy
- Flash Photolysis
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Description
High Intensity, Illuminance Pulsed Flash Light Source
The PALFLASH 501 can produce up to four pulses of submicrosecond duration precisely timed one after the other, resulting in 1, 2, 3 or 4 sequential images captured and "frozen" in time. This enables the observer to clearly view the image on each of the individual exposures knowing the exact time lapse between two consecutive exposures. The collimated light output of the PALFLASH 501 is well suited for digital imaging or film exposure in remote areas where you are restricted from the light source.
Four different PALFLASH 501 models produce 1, 2, 3 or 4 pulses per flash, where each pulse is timed closely together, one after the other. Each are controlled with the PALSEQ 400 external pulse sequencer (sold separately). The delay between individual pulses can be as short as 1 µsec (externally adjustable), with each pulse duration as short as 250 nsec or as long as 750 nsec (depending on the discharge energies).
How does it work?
A 4-pulse unit would consist of the Model 501/4 requiring an external pulse sequencer, achieving 4 pulses with a delay of 1 usec between each pulse. Illustration below shows these results:
A 2-pulse unit would generate two pulses per flash (Model 501/2) Continuous pulse flashes separated with a nominal 0.5 second delay between flashes are possible.
Illustration below shows these results:
PALFLASH's 501 internal on-axis, small halogen bulb helps the user align the optical system without operating the PALFLASH 501. The bulb is removable, thus allowing the user to substitute other alignment sources such as a laser, fiber optics, etc. The PALFLASH 501 is capable of operating with air, however the use of agon gas improves the spatial stability of the pulses.
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