Radek Pjatkan

ORCID: 0009-0009-5710-1973
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About
Contact & Profiles
Research Areas
  • Radiation Detection and Scintillator Technologies
  • Particle Detector Development and Performance
  • Medical Imaging Techniques and Applications
  • Neutrino Physics Research
  • Superconducting and THz Device Technology
  • Ga2O3 and related materials
  • Molecular Sensors and Ion Detection
  • Quantum Dots Synthesis And Properties
  • Lanthanide and Transition Metal Complexes
  • Digital Radiography and Breast Imaging
  • ZnO doping and properties
  • Gyrotron and Vacuum Electronics Research
  • Radiation Therapy and Dosimetry
  • Atmospheric Ozone and Climate
  • Luminescence and Fluorescent Materials
  • Luminescence Properties of Advanced Materials

Nuvia (Czechia)
2019-2023

Oak Ridge National Laboratory
2021

Max Planck Institute for Physics
2021

University of Tennessee at Knoxville
2021

Lancaster University
2021

Czech Technical University in Prague
2021

TU Dortmund University
2021

Leibniz Institute of Polymer Research
2021

Highly luminescent ZnO:Ga-polystyrene composite (ZnO:Ga-PS) with ultrafast subnanosecond decay was prepared by homogeneous embedding the ZnO:Ga scintillating powder into organic matrix. The photo-induced precipitation subsequent calcination in air and Ar/H2 atmospheres. subsequently mixing polystyrene (10 wt% fraction of ZnO:Ga) press compacted to 1 mm thick pellet. Luminescent spectral kinetic characteristics were preserved. Radioluminescence spectra corresponded purely phase emission at...

10.1364/oe.24.015289 article EN cc-by Optics Express 2016-06-28

Fast emitting polymeric scintillators are requested in advanced applications where high speed detectors with a large signal-to-noise ratio needed. However, their low density implies weak stopping power of energy radiation and thus limited light output sensitivity. To enhance performance, can be loaded dense nanoparticles (NPs). We investigate the properties series by means photoluminescence scintillation spectroscopy, comparing standard composite system hafnium dioxide (HfO2) NPs. The...

10.1021/acs.nanolett.4c00681 article EN Nano Letters 2024-07-01

The discovery of scintillation in the blue regime from poly(ethylene naphthalate) (PEN), a commonly used high-performance industrial polyester plastic, has sparked interest physics community as new type plastic scintillator material. This observation addition to its good mechanical and radiopurity properties makes PEN an attractive candidate active structure for low-background experiments. paper reports on investigations potential terms production tests custom made tiles various light output...

10.1088/1748-0221/14/07/p07006 article EN cc-by Journal of Instrumentation 2019-07-05

Heat treatment is needed to increase the luminescence intensity of ZnO:Ga particles, but it comes at cost higher particle agglomeration.

10.1039/c9ra04421c article EN cc-by-nc RSC Advances 2019-01-01

PEN is an industrial polyester plastic which has become interesting for the physics community as a new type of scintillator. scintillates in blue regime, ideal most photosensor devices. In addition, excellent mechanical properties and very good radiopurity been achieved. Thus, it candidate active structural components low-background experiments. One possible application are holders germanium detectors operating cryogenic liquids (LAr, LN2). Such structures can help to reject surface external...

10.22323/1.390.0163 article EN cc-by-nc-nd Proceedings of The 39th International Conference on High Energy Physics — PoS(ICHEP2018) 2021-01-29

10.1016/j.nima.2019.163294 article EN publisher-specific-oa Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2019-12-15

Abstract Poly(ethylene naphthalate), PEN, is an industrial polyester which has been shown to scintillate in the blue wavelength region. Combined with measurements of a high intrinsic radiopurity, this sparked interest material for use low-background experiments.

10.1088/1742-6596/1468/1/012225 article EN Journal of Physics Conference Series 2020-02-01

Fast emitting polymeric scintillators are requested in advanced applications where high-speed detectors with large signal-to-noise ratio needed. However, their low density implies a weak stopping power of high energy radiations, thus limited light output and sensitivity. To enhance performances, can be loaded dense nanoparticles (NPs). We investigate the properties series by means photoluminescence scintillation spectroscopy, comparing standard composite system hafnium dioxide (HfO2) NPs....

10.48550/arxiv.2408.01340 preprint EN arXiv (Cornell University) 2024-08-02

PEN is an industrial polyester plastic which has become interesting for the physics community as a new type of scintillator. scintillates in blue regime, ideal most photosensor devices. In addition, excellent mechanical properties and very good radiopurity been achieved. Thus, it candidate active structural components low-background experiments. One possible application are holders germanium detectors operating cryogenic liquids (LAr, LN2). Such structures can help to reject surface external...

10.48550/arxiv.2011.08983 preprint EN cc-by-sa arXiv (Cornell University) 2020-01-01

Abstract Many international low-background experiments are showing increasing interest in the use of different plastic scintillation detectors. Based on our experience field quality improvement polystyrene (PS) based detectors, this work is focusing a further enhancement scintillator light output and associated energy resolution crucial for detection very rare nuclear processes. To produce PS scintillators from liquid styrene various stabilization additives conditions polymerization process...

10.1088/1748-0221/17/02/c02005 article EN Journal of Instrumentation 2022-02-01
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