The impact of fluorescent dyes on the performances of polystyrene-based plastic scintillators

Zhu, Jun; Cheng, Daojian; Jiang, Huimin; Zheng, Zhanlong; Gong, Rui; Bi, Yutie; Zhang, Lin; Lin, Ruisen

doi:10.1016/j.nima.2016.08.018

Cited by 20 publications

(2 citation statements)

References 16 publications

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“…The transmission achieved is more than 85% in the spectral range of interest [27]. In addition, PPO and POPOP are a great choice for polystyrene-based plastic scintillators in order to achieve higher intensity and light yield if their concentration is properly tuned for each plastic [28]. Thus, their concentration was optimized to be 1% and 0.03% by weight for PPO and POPOP respectively for the scintillator assumed here [24].…”

Section: Geometry and Materials Propertiesmentioning

confidence: 99%

On the design of experiments based on plastic scintillators using GEANT4 simulations

Ros

Sáez-Cano

Medina‐Tanco

et al. 2018

Radiation Physics and Chemistry

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Plastic scintillators are widely used as particle detectors in many fields, mainly, medicine, particle physics and astrophysics. Traditionally, they are coupled to a photo-multplier (PMT) but now silicon photo-multipliers (SiPM) are evolving as a promising robust alternative, specially in space born experiments since plastic scintillators may be a light option for low Earth orbit missions. Therefore it is timely to make a new analysis of the optimal design for experiments based on plastic scintillators in realistic conditions in such a configuration.We analyze here their response to an isotropic flux of electron and proton primaries in the energy range from 1 MeV to 1 GeV, a typical scenario for cosmic ray or space weather experiments, through detailed GEANT4 simulations. First, we focus on the effect of increasing the ratio between the plastic volume and the area of the photo-detector itself and, second, on the benefits of using a reflective coating around the plastic, the most common technique to increase light collection efficiency. In order to achieve a general approach, it is necessary to consider several detector setups. Therefore, we have performed a full set of simulations using the highly tested GEANT4 simulation tool: several parameters have been analyzed such as the energy lost in the coating, the deposited energy in the scintillator, the optical absorption, the fraction of scintillation photons that are not detected, the light collection at the photo-detector, the pulse shape and its time parameters and finally, other design parameters as the surface roughness, the coating reflectivity and the case of a scintillator with two decay components. This work could serve as a guide on the design of future experiments based on the use of plastic scintillators.

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Section: Geometry and Materials Propertiesmentioning

confidence: 99%

On the design of experiments based on plastic scintillators using GEANT4 simulations

Ros

Sáez-Cano

Medina‐Tanco

et al. 2018

Radiation Physics and Chemistry

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“…These are examples of primary dopants, i.e., 2,5-Diphenyloxazole (PPO), p-Terphenyl (PTP), and 2-(4-tert-Butylphenyl)-5-(4-biphenyl)-1,3,4oxadiazole (b-PBD), while for secondary dopant, i.e., 1,4-bis-[2-(5-Phenyl)oxazolyl]benzene (POPOP), 9,10-Diphenylanthracene (DPA), 1,4-bis(2-Methylstyryl ) benzene (Bis-MSB), and 1,4-Bis(4-methylstyryl)benzene (Me-MSB). Based on the research conducted by Jun Zhu et al [4], from all the primary and secondary dopant types mentioned above, PPO and POPOP were the most efficient additive dopants for polystyrene-based plastic scintillators with mass ratios of 0.2% and 0.02%, respectively. However, the weakness of PS-based plastic scintillator is the efficiency of the plastic scintillator on the scintillation response, which can be decreased on dosimetry with photon energy less than 260 keV [5].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Plastic Scintillator Using Polystyrene Matrix Based

Nuri

Pancoko

Jami

et al. 2022

SPEKTRA

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Experiments on making a plastic scintillator with polystyrene as a base material mixed with fluorescent compounds (primary and secondary dopants) have been performed. Primary dopants (PTP) used to produce emission at wavelengths of visible light and secondary dopants (POPOP) to shift the visible wavelengths to wavelengths that could be detected by Photomultiplier Tube (PMT) ) were carried out. Experiments were performed on the melting points condition of these materials, which had previously been subjected to a thermo-mechanical analysis using a Thermogravimetric Analysis-Differential Scanning Calorimetry (TGA-DSC) machine, where the melting point was in the range of 200-240°C. Furthermore, the fabrication was carried out using the extrusion technique, where polystyrene pellets mixed with PTP (1.5% by weight) and POPOP (0.05% by weight) were fed into an extrusion machine which has four hot areas to obtain a thin plate plastic scintillator. The plates were then analyzed with a UV-Vis Spectrophotometer to determine the absorption spectrum and Fluorescence Spectrophotometer to determine the emission spectrum. From the results of the analysis, it was found that the samples that went through scintillation pellets and without the addition of antioxidants had absorption spectrum data of 330 nm and emission spectrum of 421 nm. These values are in accordance with the characteristics of plastic scintillators on the market.

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Adsorption behaviors of cationic and anionic dyes from aqueous solution on nanocomposite polypyrrole/SBA-15

et al. 2018

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The impact of fluorescent dyes on the performances of polystyrene-based plastic scintillators

Cited by 20 publications

References 16 publications

On the design of experiments based on plastic scintillators using GEANT4 simulations

On the design of experiments based on plastic scintillators using GEANT4 simulations

Fabrication of Plastic Scintillator Using Polystyrene Matrix Based

Adsorption behaviors of cationic and anionic dyes from aqueous solution on nanocomposite polypyrrole/SBA-15

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