Evidence of deep-blue photon emission at high efficiency by common plastic

Nakamura, Hidehito; Shirakawa, Yoshiyuki; Takahashi, Sentaro; Shimizu, H.M.

doi:10.1209/0295-5075/95/22001

Cited by 82 publications

(64 citation statements)

References 13 publications

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“…A detector using plastic scintillators is well known to have an easy operation because it consists of a chemically stable material [7]. Several studies have been conducted to include the features, such as neutron radiation hardness [8] and sensitivity [9][10][11], as well as reduced manufacturing costs [12,13]. A large-area plastic scintillator of an affordable price has been required by many researchers of nuclear and high-energy physics fields [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Study on the Characteristics of a Scintillator for Beta-ray Detection using Epoxy Resin

et al. 2017

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Abstract.A thin plate of a plastic scintillator for detecting a beta-ray was developed. The plastic scintillator was made using epoxy resin and organic scintillators such as 2.5-diphenyloxazole (PPO) and 1,4-bis [5-phenyl-2-oxazole] benzene (POPOP). The mixture ratio of epoxy resin and the organic scintillators was determined using their absorbance, transmittance, emission spectra, and transparency. Their optimal weight percentage of PPO and POPOP in the organic scintillators was adjusted to 0.2 wt%:0.01 wt%. The prepared plastic scintillator was used to measure the standard source of Sr-90. The pulse height spectra and total counts of the prepared plastic scintillator were similar to a commercial plastic scintillator. Based on the above results, a large-area plastic scintillator was prepared for rapid investigation of a site contaminated with Sr-90. The prepared large-area plastic scintillator was evaluated for the characteristics in the laboratory. The evaluation results are expected to be usefully utilized in the development of a large-area plastic scintillation detector. The large-area plastic scintillation detector developed on the basis of the evaluation results is expected to be utilized to quickly measure the contamination of Sr-90 in the grounds used as a nuclear power facility.

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Section: Introductionmentioning

confidence: 99%

Study on the Characteristics of a Scintillator for Beta-ray Detection using Epoxy Resin

et al. 2017

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“…PEN and PET emit blue light with peak emission wavelengths of 450 nm and 350 nm and they produce 10,500 and 2,200 photons per MeV, respectively [1]. PEN scintillators were previously used in radioactive dosimeters in nuclear experiments and medical physics [2] but none of them have been used in particle physics experiments.…”

Section: Introductionmentioning

confidence: 99%

Development of Radiation Hard Scintillators

Tiras¹,

Wetzel²,

Bilki³

et al. 2017

Proceedings of 38th International Conference on High Energy Physics — PoS(ICHEP2016)

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Modern high-energy physics experiments are in ever increasing need for radiation hard scintillators and detectors. In this regard, we have studied various radiation-hard scintillating materials such as Polyethylene Naphthalate (PEN), Polyethylene Terephthalate (PET), our prototype material Scintillator X (SX) and Eljen (EJ). Scintillation and transmission properties of these scintillators are studied using stimulated emission from a 334 nm wavelength UV laser with PMT before and after certain amount of radiation exposure. Recovery from radiation damage is studied over time. While the primary goal of this study is geared for LHC detector upgrades, these new technologies could easily be used for future experiments such as the FCC and ILC. Here we discuss the physics motivation, recent developments and laboratory measurements of these materials.

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“…Energy spectra of some radiations were recently demonstrated for PEN. [21][22][23][24][25][26][27] For a survey meter with a large detection window, we created a thin sheet of scintillation material from PEN and demonstrated its radiation counting response at different locations on the detection window. This knowledge will be useful for designing a full-scale radiation detector.…”

Section: Introductionmentioning

confidence: 99%

Position Dependence for Count Rates in a Polyethylene Naphthalate Survey Meter

Nguyen

Nakamura

Shirakawa³

et al. 2015

Jpn. J. Health Phys.

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A thin polyethylene naphthalate (PEN) sheet (72 × 140 × 0.5 mm) with one face enhanced with prism treatment was used for a survey meter. PEN has a relatively high effective refractive index of 1.70, which directly affects light propagation generated in the sheet. We show its radiation counting response at a 9 × 23 array of different locations on the detection window of the PEN survey meter, when irradiated with beta particles from a 90 Sr radioactive source. The variability in radiation counts on the detection window, obtained by dividing the maximum value by the minimum value, was 1.23 along the Y-axis and 1.05 along the X-axis. This knowledge can be useful in the design of radiation detectors mounting PEN sheets.

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Evidence of deep-blue photon emission at high efficiency by common plastic

Cited by 82 publications

References 13 publications

Study on the Characteristics of a Scintillator for Beta-ray Detection using Epoxy Resin

Study on the Characteristics of a Scintillator for Beta-ray Detection using Epoxy Resin

Development of Radiation Hard Scintillators

Position Dependence for Count Rates in a Polyethylene Naphthalate Survey Meter

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