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Published on: August 6, 2018
Ultrafast compact classical Mott polarimeter
V N Petrov1, V V Grebenshikov, A N Andronov
1St. Petersburg State Polytechnical University, 29 Polytechnicheskaya Street, 195251 St. Petersburg, Russia. petrov@tuexph.stu.neva.ru
The Review of Scientific Instruments
|June 21, 2007
Summary
This study introduces an ultrafast compact classical Mott detector. Future developments aim for a compact, cubic decimeter-sized detector using photomultipliers and scintillators for enhanced electron detection.
Area of Science:
- Physics
- Particle Detectors
- Electron Optics
Background:
- Classical Mott polarimeters are crucial for measuring electron spin polarization.
- Existing detectors face limitations in speed, size, and sensitivity.
- Advancements are needed for compact and efficient spin analysis.
Purpose of the Study:
- To describe a novel ultrafast compact classical Mott detector.
- To present key performance metrics including efficiency and counting rate.
- To outline a technological approach for future miniaturization.
Main Methods:
- Utilized photomultipliers with scintillators as electron energy-sensitive detectors.
- Integrated photomultipliers and scintillators within a vacuum environment.
- Designed for high-speed electron spin polarization measurements.
Main Results:
- Achieved a polarimeter efficiency of epsilon = 6 x 10(-4).
- Demonstrated a maximum counting rate of approximately 2000 kilocounts per second (kcps).
- Employed low dark noise photomultiplier tubes and scintillators.
Conclusions:
- The developed Mott detector offers ultrafast and compact capabilities.
- The chosen technology facilitates the construction of future cubic decimeter-sized Mott detectors.
- This advancement holds potential for improved electron spin analysis in various applications.
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