Photoluminescence and scintillation characteristics of Bi-loaded PVK-based plastic scintillators for the high counting-rate measurement of high-energy X-rays

Satô, Atsushi; Magi, Arisa; Koshimizu, Masanori; Fujimoto, Yutaka; Kishimoto, Shunji; Asai, Keisuke

doi:10.1039/d1ra01878g

Cited by 8 publications

(2 citation statements)

References 41 publications

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“…99) PVKbased plastic scintillators loaded with triphenyl bismuth have been developed. 100,101) From the viewpoint of sensitization for X-rays and gamma rays, lead has also been used because of its high atomic number of 82. Pb-loaded plastic scintillators are commercially available as EJ-256 (equivalent to BC-452).…”

Section: Plastic Scintillators Loaded With Inorganic or Organometalli...mentioning

confidence: 99%

Recent progress of organic scintillators

Koshimizu¹

2022

Jpn. J. Appl. Phys.

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Recent development of organic scintillators is reviewed from the viewpoint of materials science. Design and crystal growth of organic crystalline scintillators, use of novel solvents and solutes in liquid scintillators, and development of plastic scintillators based on novel polymer hosts or novel fluorescent molecules are introduced. Additionally, development of loaded liquid or plastic scintillators is reviewed on the basis of two approaches of loading: molecules or nanoparticles. A disadvantage of organic scintillators has been their low scintillation light yields. Hence, materials design for improving scintillation light yields is introduced in detail with description on related excited state dynamics. Finally, future prospect for the improvement of scintillation light yield is briefly given.

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Section: Plastic Scintillators Loaded With Inorganic or Organometalli...mentioning

confidence: 99%

Recent progress of organic scintillators

Koshimizu¹

2022

Jpn. J. Appl. Phys.

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“…Plastic scintillators have been modified by using multiple combinations of polymers and fluorophores as per the applications. Various plastic scintillators have been developed utilizing different polymer bases such as polyvinyl toluene (PVT) 27 , polystyrene (PS) 28 , Polymethyl Methacrylate (PMMA) 29 , poly(9-vinylcarbazole) (PVK) 30 , Polysixloxane 31 , Polyethylene Naphthalate (PEN) 32 and Others. Generally, plastic scintillator is fabricated by starting from a monomer in which the fluorophores are dissolved and subjected to heat cycles for polymerization to obtain solid scintillator.…”

Section: Introductionmentioning

confidence: 99%

Novel epoxy-bPBD-BisMSB composite plastic scintillator for alpha, beta and gamma radiation detection

Sahani,

Pandya

2024

Sci Rep

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A composite plastic scintillator is prepared by uniform dispersion of organic fluorophores 2-(4-Biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole (b-PBD) and 1,4-bis(2-methylstyryl) benzene (Bis-MSB) in epoxy resin followed by curing at room temperature. The developed scintillator is strong blue emitter (425 nm), confirmed by 365 nm UV excited Photo luminescence and beta particle (90Sr-90Y) excited Radio-luminescence characterizations. The developed scintillator is highly transparent (~ 70%) to emitted light wavelength. Moreover, the scintillator’s blue emission is appropriate for photomultiplier tube (PMT) based scintillation measurement due to its maximum peak spectral response in blue region. Alpha, beta and gamma radiation detection were performed on PMT coupled scintillators of sizes Ø50 mm × 1 mm, Ø50 mm × 5 mm and Ø50 mm × 25 mm respectively. Pulse height spectra were recorded using 1 k Multichannel analyser (MCA) using various reference radiation sources. All scintillators demonstrated promising response to the respective radiations. Absolute detection efficiency of alpha scintillator is obtained as 32% (241Am), 86% of that of standard plastic scintillator EJ-212. Beta endpoint energy and gamma Compton edges showed linear variation w.r.t. corresponding channel numbers. Detection efficiency of beta and gamma scintillator is found to be 35.7% (90Sr-90Y) and 6.7% (136Cs) respectively. The developed scintillator has potential to be used for radioactivity contamination & gamma dose rate measurement applications.

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Metal-Loaded Plastic Scintillators Toward Gamma Spectroscopy Applications

2023

Gamma Ray Imaging

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Photoluminescence and scintillation characteristics of Bi-loaded PVK-based plastic scintillators for the high counting-rate measurement of high-energy X-rays

Abstract: Bi-loaded PVK-based plastic scintillators doped with bis-MSB are applicable for high counting-rate measurement of high-energy X-rays. They showed a higher detection efficiency and light yield than EJ-256 under 67.41 keV X-ray irradiation.

Cited by 8 publications

References 41 publications

Recent progress of organic scintillators

Recent progress of organic scintillators

Novel epoxy-bPBD-BisMSB composite plastic scintillator for alpha, beta and gamma radiation detection

Metal-Loaded Plastic Scintillators Toward Gamma Spectroscopy Applications

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