Setup for multicoincidence experiments of photons in the extreme ultraviolet to visible spectral range and charged particles—The solid angle maximization approach
Abstract
The coincident detection of particles is a powerful method in experimental physics, enabling the investigation of a variety of projectile-target interactions. The vast majority of coincidence experiments is performed with charged particles, as they can be guided by electric or magnetic fields to yield large detection probabilities. When a neutral species or a photon is one of the particles recorded in coincidence, its detection probability typically suffers from small solid angles. Here, we present two optical assemblies considerably enhancing the solid angle for photon detection in the extreme ultraviolet to visible spectral range. The efficiency and versatility of these assemblies are demonstrated for electron-photon coincidence detection, where electrons and photons emerge from fundamental processes after photoexcitation of gaseous samples by synchrotron radiation.
- Publication:
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Review of Scientific Instruments
- Pub Date:
- September 2019
- DOI:
- 10.1063/1.5109104
- arXiv:
- arXiv:1906.04653
- Bibcode:
- 2019RScI...90i3104H
- Keywords:
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- Physics - Instrumentation and Detectors;
- Physics - Atomic Physics
- E-Print:
- 7 pages, 6 figures, the following article has been submitted to Review of Scientific Instruments (AIP). After it is published, it will be found at https://aip.scitation.org/journal/rsi