English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The present work aims to study the effect of the CuSO 4  additive on the physical and radiation-shielding properties of polyepoxide resins. As a result, a series of four samples with the chemical composition  x CuSO 4  + (100 −  x ) (epoxy resin and hardener) was synthesized. The fabrication of samples was performed under atmospheric pressure and at room temperature. The density of the fabricated CuSO 4 -doped polyepoxides resin was measured experimentally using an MH-300A densimeter with an accuracy of 0.001 mg·cm −3 . A narrow beam transmission method with an NaI (Tl) detector was used to evaluate and describe the effect of CuSO 4  on the linear attenuation coefficient of the fabricated composites in the γ-ray energy interval, which ranged between 33 and 1,332 keV. The estimated results showed a high enhancement in the  µ  values that increased from 0.259 to 1.749 cm −1 , raising the CuSO 4  concentration from 0 to 40 wt% at a γ-photon energy of 33 keV. The enhancement in the  µ  values decreased with an increase in the γ-photon energy to 1,332 keV, whereas the  µ  values increased from 0.077 to 0.102 cm −1  with an increase in the CuSO 4  concentration between 0 and 40 wt%, respectively. This showed that increased  µ  values positively affected the half-value thickness ( Δ0.5 , cm), mean free path ( λ , cm), lead equivalent thickness ( Δeq , cm), and the transmission factor (%); all of the mentioned parameters suffer a considerable decrease with increasing CuSO 4  concentration between 0 and 40 wt%.

Gamma-ray shielding analysis using the experimental measurements for copper( ii ) sulfate-doped polyepoxide resins