Towards a better understanding of detection properties of different types of plastic scintillator crystals using physical detector and MCNPX code


YILMAZ A., YILMAZ ALAN H., Susam L. A., AKKUŞ B., ALMisned G., Ilhan T. B., ...Daha Fazla

Nuclear Engineering and Technology, cilt.54, sa.12, ss.4671-4678, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 54 Sayı: 12
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.net.2022.07.032
  • Dergi Adı: Nuclear Engineering and Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, INSPEC, Directory of Open Access Journals
  • Sayfa Sayıları: ss.4671-4678
  • Anahtar Kelimeler: MCNP, Plastic scintillator, Radiation, Polystrene, Detector, CR-39
  • Ankara Üniversitesi Adresli: Evet

Özet

© 2022 Korean Nuclear SocietyThe purpose of this comprehensive research is to observe the impact of scintillator crystal type on entire detection process. For this aim, MCNPX (version 2.6.0) is used for designing of a physical plastic scintillation detector available in our laboratory. The modelled detector structure is validated using previous studies in the literature. Next, different types of plastic scintillation crystals were assessed in the same geometry. Several fundamental detector properties are determined for six different plastic scintillation crystals. Additionally, the deposited energy quantities were computed using the MCNPX code. Although six scintillation crystals have comparable compositions, the findings clearly indicate that the crystal composed of PVT 80% + PPO 20% has superior counting and detecting characteristics when compared to the other crystals investigated. Moreover, it is observed that the highest deposited energy amount, which is a result of the highest collision number in the crystal volume, corresponds to a PVT 80% + PPO 20% crystal. Despite the fact that plastic detector crystals have similar chemical structures, this study found that performing advanced Monte Carlo simulations on the detection discrepancies within the structures can aid in the development of the most effective spectroscopy procedures by ensuring maximum efficiency prior to and during use.