PMID- 31690761
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210409
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 9
IP  - 1
DP  - 2019 Nov 5
TI  - Gamma Attenuation Coefficients of Nano Cadmium Oxide/High density Polyethylene 
      Composites.
PG  - 16012
LID - 10.1038/s41598-019-52220-7 [doi]
LID - 16012
AB  - In the present work, high density polyethylene (HDPE) matrix mixed with 
      micro-sized and nano-sized Cadmium oxide (CdO) particles of different 
      concentrations were prepared by compression molding technique. The aim of the 
      study is to investigate the effect of particle size and weight percentage of CdO 
      particles on the gamma radiation shielding ability of CdO/HDPE composites. The 
      mass attenuation coefficients of pure HDPE, micro-CdO/HDPE and nano-CdO/HDPE 
      composites were evaluated at photon energies ranging from 59.53 keV to 
      1408.01 keV using standard radioactive point sources [(241)Am, (133)Ba, (137)Cs, 
      (60)Co and (152)Eu]. Adding micro and nano CdO particles to the HDPE matrix 
      clearly increases the mass attenuation coefficients of the composites and the 
      improvement is more significant at low gamma-ray energies. The effect of particle 
      size of CdO filler has an important role on the shielding ability of the 
      composite. The experimental results reveal that, the composites filled with 
      nano-CdO have better gamma-radiation shielding ability compared to that filled with 
      micro-CdO at the same weight fraction. A relative increase rate of about 16% is 
      obtained with nano-CdO content of 40 wt% at 59.53 keV, which attributed to the 
      higher probability of interaction between gamma-rays and nanoparticles. From this 
      study, it can be concluded that nano-CdO has a good performance shielding 
      characteristic than micro-CdO in HDPE based radiation shielding material.
FAU - El-Khatib, Ahmed M
AU  - El-Khatib AM
AD  - Physics Department, Faculty of Science, Alexandria University, 21511, Alexandria, 
      Egypt.
FAU - Abbas, Mahmoud I
AU  - Abbas MI
AUID- ORCID: 0000-0002-5256-0734
AD  - Physics Department, Faculty of Science, Alexandria University, 21511, Alexandria, 
      Egypt.
FAU - Elzaher, Mohamed Abd
AU  - Elzaher MA
AUID- ORCID: 0000-0002-7918-4898
AD  - Department of Basic and Applied Science, Faculty of Engineering, Arab Academy for 
      Science, Technology P.O 1129, Alexandria, Egypt. mohzaher400@aast.edu.
FAU - Badawi, Mohamed S
AU  - Badawi MS
AD  - Department of Physics, Faculty of Science, Beirut Arab University, Beirut, 
      Lebanon.
FAU - Alabsy, Mahmoud T
AU  - Alabsy MT
AD  - Physics Department, Faculty of Science, Alexandria University, 21511, Alexandria, 
      Egypt.
FAU - Alharshan, Gharam A
AU  - Alharshan GA
AD  - Physics Department, Faculty of Science, Princess Nourah Bint Abdulrahaman 
      University, Riyadh, Saudi Arabia.
FAU - Aloraini, Dalal A
AU  - Aloraini DA
AD  - Physics Department, Faculty of Science, Princess Nourah Bint Abdulrahaman 
      University, Riyadh, Saudi Arabia.
LA  - eng
PT  - Journal Article
DEP - 20191105
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
SB  - IM
EIN - Sci Rep. 2021 Apr 8;11(1):8135. PMID: 33833370
PMC - PMC6831599
COIS- The authors declare no competing interests.
EDAT- 2019/11/07 06:00
MHDA- 2019/11/07 06:01
PMCR- 2019/11/05
CRDT- 2019/11/07 06:00
PHST- 2019/05/16 00:00 [received]
PHST- 2019/10/10 00:00 [accepted]
PHST- 2019/11/07 06:00 [entrez]
PHST- 2019/11/07 06:00 [pubmed]
PHST- 2019/11/07 06:01 [medline]
PHST- 2019/11/05 00:00 [pmc-release]
AID - 10.1038/s41598-019-52220-7 [pii]
AID - 52220 [pii]
AID - 10.1038/s41598-019-52220-7 [doi]
PST - epublish
SO  - Sci Rep. 2019 Nov 5;9(1):16012. doi: 10.1038/s41598-019-52220-7.