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The beam chopper consists of a rotating disk with grooves at the outer diameter. When the disk rotates the x-ray is being chopped with the desired opening/closing time. The correct dimensioning of the grooves and the angular velocity provides the maximum opening time and at JJ X-Ray the disk is topologically, and shape optimized considering both the static and dynamic behavior. The chopper can also generate single pulse x-ray with the correct modulation of the angular velocity. In addition, JJ X-Ray offers a complete shutter and timing system able to isolate single pulses with controllable width. The chopper is cased in an aluminum housing, which serves both as a protection and vacuum vessel for HV environment.
- Open/closed period down to 6µs in the standard configuration
- Transmission < 10^9 at 150 keV
- X-ray energies < 150 keV
- System is topologically optimized
- Single pulse isolation
- Custom made solutions
- HV compatible
- Stage integration available