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Vol. 215, Issue 8, August 2017, pp. 13-18




Cadmium Sulfide Quantum Dot Particles (CdSQD) Dispersed in Poly Methyl Methacrylate as an Effective Gamma Counter
for the Scintillation Detector

1, 4 Askari Mohammad Bagher, 2 Beheshti - Marnani Amir Khosro, 3 Mirzaei Mahmoud Abadi Vahid, 1 Seifi Majid, 1 Tavakoli Banizi Zoha, 3 Hosseini Ranjbar Abbas and 5 Batool Tahamipour

1 Department of Physics, University of Guilan, Rasht 41335-1914, Iran
2 Department of Chemistry, Payame Noor University, Tehran, Iran
3 Faculty of Physics, Shahid Bahonar University of Kerman, Kerman, Iran
4 Department of Physics, Payame Noor University, Tehran, Iran
5 Young Researchers and Elite Club, Sirjan Branch, Islamic Azad University, Sirjan, Iran
2 Tel.: +989132985611

E-mail: Beheshti@pnu.ac.ir


Received: 29 June 2017 /Accepted: 7 August 2017 /Published: 31 August 2017

Digital Sensors and Sensor Sysstems


Abstract: The synthetic material, cadmium sulfide quantum dot particles (CdSQD), using a hydrothermal method was dispersed in poly methyl methacrylate (PMM) polymer. In order to study the synthesized quantum dot particles, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) techniques were applied. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) images were also used to study the surface morphology of synthetic quantum dot particles. Energy-dispersive X-ray spectroscopy (EDX) test was done for identification of constituent percent of prepared material. Optical properties of CdSQD particles were evaluated by UV-visible and photoluminescence spectroscopy (PL). Finally the capability of CdSQD particles dispersed in poly methyl methacrylate (CdSQD@PMM) as a scintillator material was investigated by photomultiplier tube (PMT) test. The result of PMT test along with statistical studies showed that the CdSQD@PMM can be applied as a crystalline promising material in the field of inorganic scintillator detectors regarding to the efficiency and economic aspects.


Keywords: Scintillation detector, Gamma counter, CdS quantum dot particles, Poly methyl methacrylate, PMT test.


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