Ultra-Thin Plastic Scintillator-Based Proton Detector for Timing Applications
Mauricio Rodríguez Ramos, Javier García López, Michael Seimetz, Jessica Juan Morales, Carmen Torres Muñoz, María del Carmen Jiménez Ramos
TL;DR
A new proton detector using ultra-thin plastic scintillators was developed for timing applications in laser-based accelerators.
Contribution
The novel proton detection system uses ultra-thin EJ-214 plastic scintillators for low energy loss and precise timing.
Findings
The EJ-214 scintillator thickness was found to differ by ~46% from supplier specifications.
The detector response to MeV protons is position-dependent but linear with applied bias.
Single ion detection was successfully achieved, validating the system's diagnostic potential.
Abstract
The development of advanced detection systems for charged particles in laser-based accelerators and the need for precise time of flight measurements have led to the creation of detectors using ultra-thin plastic scintillators, indicating their use as transmission detectors with low energy loss and minimal dispersion for protons around a few MeV. This study introduces a new detection system designed by the Institute for Instrumentation in Molecular Imaging for time of flight and timing applications at the National Accelerator Center in Seville. The system includes an ultra-thin EJ-214 plastic scintillator coupled with a photomultiplier tube and shielded by aluminized mylar sheets. The prototype installation as an external trigger system at the ion beam nuclear microprobe of the aforementioned facility, along with its temporal performance and ion transmission, was thoroughly…
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Taxonomy
TopicsRadiation Detection and Scintillator Technologies · Radiation Therapy and Dosimetry · Nuclear Physics and Applications