Plastic scintillator produced by the injection-molding technique

Yoshimura, Y.; Inagaki, T.; Morimoto, Takahiro; Sugai, I.; Kuriki, M.; Shirai, R; Goto, Masahiro; Yamashina, T.

doi:10.1016/s0168-9002(98)00014-x

Cited by 10 publications

(3 citation statements)

References 1 publication

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“…3 A comparison study was made between the optical properties of casting-molded and injection-molded scintillators, these having been processed with a cycle time of 1 min. 4 In agreement with previous results, 2 the light yield in the injection-molded scintillators was 65-75% less than in cast scintillators. The sample dimensions were 3 mm ϫ 50 mm ϫ 90 mm.…”

Section: Introductionsupporting

confidence: 92%

Optical properties of injection‐molded polystyrene scintillators. I. Processing and optical properties

Martins

Seixas

Silva

et al. 2003

J of Applied Polymer Sci

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Scintillating tiles for the Tilecal/Atlas calorimeter can be produced by injection molding, an alternative to mold casting via in situ polymerization. This new production method, which leads to a much faster production rate, introduces a number of additional variables that affect the optical yield of the scintillators and that have not yet been reported in the literature. In this work, the effect of processing-induced orientation on the optical properties of the scintillators is analyzed and discussed. For this purpose, the birefringence across the thickness of the scintillator has been measured. The variations of the birefringence may be correlated with the orientation and, therefore, related to the optical performance, that is, the average light output and its nonuniformity.

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Section: Introductionsupporting

confidence: 92%

Optical properties of injection‐molded polystyrene scintillators. I. Processing and optical properties

Martins

Seixas

Silva

et al. 2003

J of Applied Polymer Sci

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“…6,7) A large number of pieces of plastic scintillators can be fabricated in injection molding. 7,8) Also, they can be fabricated in desired shape: liquid scintillators can be contained in containers with desired shape, and the good workability of plastic scintillators enables the fabrication in desired shape. (4) Organic liquid scintillators have an advantage in detection of radioactive isotopes by dissolving samples containing the radioactive isotopes as the solute.…”

Section: Introductionmentioning

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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“…Therefore, the apparent nonuniformity can directly be associated with a nonhomogeneous distribution of the dopants in the moldings. To our knowledge, in the literature4–6 there is no reference to the influence of the mold design and the processing conditions on the dopant distribution or to how this distribution can be measured.…”

Section: Introductionmentioning

confidence: 99%

Optical properties of injection‐molded polystyrene scintillators. II. Distribution of dopants

Martins

Seixas

Oliveira

et al. 2003

J of Applied Polymer Sci

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ABSTRACT:The distribution of fluorescing dye solutes in scintillating tiles for the Tilecal/Atlas project is assessed, and a link between the homogeneity of the dopant distribution and the optical yield and nonuniformity is established. The effect of the injection-molding parameters on the dye distribution is also analyzed, as well as the actual dye incorporation into the scintillators. This incorporation has been assessed with a set of experiments performed with laboratory samples with controlled amounts of additives and with samples obtained from injection-molded scintillators. Differential scanning calorimetry has been used to characterize the raw material and to establish a link between the thermophysical properties and the processing conditions, and it is proven to be a quite appropriate technique.

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Plastic scintillator produced by the injection-molding technique

Cited by 10 publications

References 1 publication

Optical properties of injection‐molded polystyrene scintillators. I. Processing and optical properties

Optical properties of injection‐molded polystyrene scintillators. I. Processing and optical properties

Recent progress of organic scintillators

Optical properties of injection‐molded polystyrene scintillators. II. Distribution of dopants

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