Er 2 O 3 effects on photon and neutron shielding properties of TeO 2 -Li 2 O-ZnO-Nb 2 O 5 glass system

AĞAR O., KAVAZ E., ALTUNSOY E., KILIÇOĞLU Ö., TEKİN H. O., SAYYED M., ...Daha Fazla

Results in Physics, cilt.13, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 13
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.rinp.2019.102277
  • Dergi Adı: Results in Physics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Radiation shielding, Er2O3, Tellurite glass, MCNPX code, EFFECTIVE ATOMIC NUMBERS, MASS ATTENUATION COEFFICIENTS, EXPOSURE BUILDUP FACTOR, GAMMA-RAY, STRUCTURAL-PROPERTIES, OPTICAL-PROPERTIES, ENERGY-ABSORPTION, ELECTRON-DENSITY, PARAMETERS, OXIDE
  • Atatürk Üniversitesi Adresli: Evet

Özet

In this study, a series of 75TeO(2)-5Li(2)O-10ZnO-(10-x)Nb2O5-(x)Er2O3 (where x = 0, 0.5, 1.0, 1.5, 2.0 and 2.8 mol %) glasses have been surveyed in terms of photon and neutron shielding characteristics. For this aim, 3x3 inch NaI(Tl) detector has been simulated in order to detect photons. Afterwards, the mass attenuation coefficients (mu/rho) and some shielding quantities such as half-value layer (HVL), tenth value layer (TVL), mean free path (MFP), effective atomic number (Z(eff)), effective electron density (N-el), equivalent atomic number (Zeq) and exposure build-up factor (EBF) have been calculated. The obtained MCNPX results of all the glasses have been compared and approved with those of XCOM program. Also, their gamma ray buildup factors have been determined in a wide energy range of 0.02-20 MeV for penetration depths up to 15 mfp. Moreover, neutron attenuation abilities of glasses have been evaluated by estimating neutron total effective removal cross section. The results showed that Er2O3 partial replacement of Nb2O5 in 75TeO(2)-5Li(2)O-10ZnO-(10-x)Nb2O5-(x)Er2O3 glass system enhances photon and neutron attenuation characteristics. It can be deduced that obtained results from the present investigation can be useful to understanding of influence of Er2O3 on nuclear radiation shielding properties of tellurite glasses.