Performance of 3D printed plastic scintillators for gamma-ray detection

Kim, Dong Geon; Lee, Sang‐Min; Park, Junesic; Son, Jun Ho; Kim, Tae Hoon; Kim, Yong Hyun; Pak, Kihong

doi:10.1016/j.net.2020.05.030

Cited by 28 publications

(16 citation statements)

References 18 publications

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“…3D printable plastic scintillator resin was developed in‐house and used for printing. The compositions and characteristics of the 3D printable resin have been described in previous studies 17–19 …”

Section: Methodsmentioning

confidence: 99%

“…The compositions and characteristics of the 3D printable resin have been described in previous studies. [17][18][19] Figure 4a shows the ISS measurement system. The ISS, which was mounted on a probe adapter, was connected to an optical fiber with a diameter of 1.0 mm, which transmitted light to a temperature-controlled photomultiplier tube (PMT, H7422-40, Hamamatsu, Japan).…”

Section: Isodose-shaped Scintillatormentioning

confidence: 99%

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Feasibility of isodose‐shaped scintillation detectors for the measurement of gamma knife output factors

et al. 2022

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Purpose Scintillation detectors were 3D printed based on a gamma knife (GK) dose distribution to calculate the volume averaging effect. The collimator output factors were measured using isodose‐shaped scintillators (ISSs) and compared with those of a micro‐diamond detector and previous reports. Methods An absorbed dose distribution in a spherical dosimetry phantom with a radius of 8 cm was obtained from GK treatment planning software (Leksell GammaPlan [LGP], Elekta AB, Stockholm, Sweden). Two types of ISSs were fabricated to fit the 97.2% (ISS‐1) and 95.6% (ISS‐2) isodose surfaces. The volume averaging correction factors were obtained by dividing the absorbed dose to water in the central voxel (CV) by that in the ISS. The correction effect due to the difference between the ISS and water was calculated by Monte Carlo simulations. Ten ISS detectors, five of each type, were used to measure the output factors of the 4‐ and 8‐mm collimators of a GK Icon to assess system consistency. The output factors of seven GKs were measured using two ISS detectors, one of each type, and a PTW T60019 (PTW, Freiburg, Germany) micro‐diamond detector. Results The detector output ratios (DORs) measured using the five ISSs of each type were consistent, with standard uncertainties less than 0.2%. In the 4‐mm field, the volume averaging correction factor ratios were 1.018 and 1.026, and the output factors after all corrections were 0.827 (0.006) and 0.825 (0.006) for ISS‐1 and ISS‐2, respectively. In the 8‐mm field, the volume averaging correction factor ratios were 1.000 for both ISS types, and the output factors were 0.898 (0.003) and 0.900 (0.003) for ISS‐1 and ISS‐2, respectively. The ISS detectors could measure the output factors of a GK with uncertainties comparable to that of the PTW 60019 detector. The output factors of all detectors decreased with the dose rate. Conclusion The volume averaging effect of an ISS developed in‐house could be calculated using known dose distributions. The collimator output factors of the GK Perfexion/Icon models measured using ISS detectors were consistent with those of a commercial synthetic micro‐diamond detector and recent studies.

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Section: Methodsmentioning

confidence: 99%

Section: Isodose-shaped Scintillatormentioning

confidence: 99%

Feasibility of isodose‐shaped scintillation detectors for the measurement of gamma knife output factors

et al. 2022

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“…Plastic dosimeters represent an important role in radiation applications [1][2][3][4][5]. They have been used in a variety of applications, such as portal monitors [6], solar radiation [7], radiation attenuation [8], cosmic radiation [9], UV radiation [10], thermal radiation [11] and gamma radiation [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Plastic bottle caps as radiation detectors for high gamma radiation doses

Oliveira¹,

Nascimento²,

Antonio³

et al. 2022

Braz. J. Rad. Sci.

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Dosimetric evaluation is indicated for material characterization seeking to identify possible applications; still, proper preprocessing techniques are critical features of this process. This work aimed to determine the linearity response of plastic samples irradiated with gamma rays using the Fourier Transform Infrared (FTIR) measurements. The plastic samples were analyzed using Derivatives and Principal Component Analysis (PCA) methods. They applied linear and Principal Component Regression (PCR) methods to obtain linearity. The methods obtained good results for linearity and also showed the evolution of each technique. In conclusion, the results indicate that the applied methods can be useful in radiation physics and for plastic samples as interesting potential radiation detectors.

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“…Research on economical and reliable radiation detectors is being actively conducted not only in the medical field and environmental radiation monitoring, but also in nuclear material detection and decommissioning of nuclear facilities. Although plastic scintillators are used in large-volume detection systems, their stopping power is low due to their low atomic number material, so the performance for high-energy gamma-ray detection is low [5,[14][15][16][17]. In nuclear-related facilities, radioactivity must be monitored regularly.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Plastic Scintillator for Detection of Gamma-Rays: Simulation and Experimental Study

Min

Kim

et al. 2021

Chemosensors

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Plastic scintillators are widely used in various radiation measurement applications, and the use of plastic scintillators for nuclear applications including decommissioning, such as gamma-ray detection and measurement, is an important concern. With regard to efficient and effective gamma-ray detection, the optimization for thickness of plastic scintillator is strongly needed. Here, we elucidate optimization of the thickness of high-performance plastic scintillator using high atomic number material. Moreover, the EJ-200 of commercial plastic scintillators with the same thickness was compared. Two computational simulation codes (MCNP, GEANT4) were used for thickness optimization and were compared with experimental results to verify data obtained by computational simulation. From the obtained results, it was confirmed that the difference in total counts was less than 10% in the thickness of the scintillator of 50 mm or more, which means optimized thickness for high efficiency gamma-ray detection such as radioactive 137Cs and 60CO. Finally, simulated results, along with experimental data, were discussed in this study. The results of this study can be used as basic data for optimizing the thickness of plastic scintillators using high atomic number elements for radiation detection and monitoring.

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Performance of 3D printed plastic scintillators for gamma-ray detection

Cited by 28 publications

References 18 publications

Feasibility of isodose‐shaped scintillation detectors for the measurement of gamma knife output factors

Feasibility of isodose‐shaped scintillation detectors for the measurement of gamma knife output factors

Plastic bottle caps as radiation detectors for high gamma radiation doses

Optimization of Plastic Scintillator for Detection of Gamma-Rays: Simulation and Experimental Study

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