A fiber detector to monitor ortho-Ps formation and decay
| Autor: | B. Rienäcker, R.S. Brusa, R. Caravita, S. Mariazzi, L. Penasa, F. Pino, O.A. Ranum, G. Nebbia |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Nuclear and High Energy Physics
Physics - Instrumentation and Detectors Physics::Instrumentation and Detectors Physics::Atomic and Molecular Clusters FOS: Physical sciences High Energy Physics::Experiment Instrumentation and Detectors (physics.ins-det) Detectors and Experimental Techniques Instrumentation physics.ins-det |
| Popis: | We describe a novel method to use a scintillating fiber detector similar to the Fast Annihilation Cryogenic Tracking (FACT) used at the antimatter experiment AEgIS to monitor the presence of ortho-positronium. A single scintillating fiber was coupled to a photomultiplier tube and irradiated by flashes of about $6\cdot10^6$ $511\,\text{keV}$ $\gamma$-rays produced by $\approx10\,\text{ns}$ long positron pulses. The results were used to demonstrate the ability to track the creation and annihilation of ortho-positronium atoms over time in cryogenic and highly magnetic environments by using the FACT detector as a "digital calorimeter". Comment: 6 pages, 7 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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