PMID- 37453181
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230903
IS  - 1872-9800 (Electronic)
IS  - 0969-8043 (Linking)
VI  - 200
DP  - 2023 Oct
TI  - Ulexite/HDPE-Bi(2)O(3)/HDPE layered composites for neutron and gamma radiation 
      shielding.
PG  - 110940
LID - S0969-8043(23)00293-2 [pii]
LID - 10.1016/j.apradiso.2023.110940 [doi]
AB  - In this study, 5, 10, and 15 wt% ulexite (NaCaB(5)O(6)(OmicronH)(6).5H(2)O, hydrated 
      sodium calcium borate hydroxide) and 15 wt %Bi(2)O(3) filled high density 
      polyethylene (HDPE) composite materials were fabricated through conventional 
      melt-extrusion processing techniques in the form of a layered structure in order 
      to absorb both neutron radiations and the secondary radiations resulting from 
      neutron induced reactions. In the layered structure, HDPE was used to slow down 
      neutrons, while ulexite and Bi(2)O(3) were used to capture thermal neutrons and 
      secondary gamma radiations, respectively. The properties of ulexite/HDPE and 
      Bi(2)O(3)/HDPE composites were investigated through scanning electron microscopy 
      (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA). The mechanical 
      properties (tensile and hardness) of composite materials were also investigated. 
      The results showed that the addition of ulexite and Bi(2)O(3) particles does not 
      change the thermal and mechanical properties of the HDPE composites 
      significantly. Total macroscopic cross-section of the composites was determined 
      using a (239)Pu-Be (alpha,n) neutron source, while their linear and mass attenuation 
      coefficients were determined using a(137)Cs gamma-ray source. The results show 
      that ulexite filled HDPE composites enhance neutron shielding property and 
      Bi(2)O(3) filled HDPE composites provide good shielding performance for gamma 
      rays.
CI  - Copyright (c) 2023 Elsevier Ltd. All rights reserved.
FAU - Alver, Umit
AU  - Alver U
AD  - Karadeniz Technical University, Metallurgical and Materials Engineering, Trabzon, 
      Turkey. Electronic address: ualver@ktu.edu.tr.
FAU - Duran, Selcen Uzun
AU  - Duran SU
AD  - Program of Medical Imaging Techniques, Vocational School of Health Sciences, 
      Karadeniz Technical University, Trabzon, Turkey.
FAU - Demirkoz, M Bilge
AU  - Demirkoz MB
AD  - Middle East Technical University, The Research and Application Center for Space 
      and Accelerator Technologies, Ankara, Turkey.
FAU - Mucogllava, Brunilda
AU  - Mucogllava B
AD  - Johannes Gutenberg University Mainz, Institute of Physics, Mainz, Germany.
FAU - Aslan, Mustafa
AU  - Aslan M
AD  - Karadeniz Technical University, Metallurgical and Materials Engineering, Trabzon, 
      Turkey.
FAU - Cava, Kutay
AU  - Cava K
AD  - Karadeniz Technical University, Central Research Laboratory, Trabzon, Turkey.
FAU - Ozkalayci, Fatih
AU  - Ozkalayci F
AD  - Karadeniz Technical University, Central Research Laboratory, Trabzon, Turkey.
FAU - Dindar, Osman
AU  - Dindar O
AD  - Modedoor Modern Medikal Destek ve Elektronik San. Tic. Ltd. Sti, Ankara, Turkey.
LA  - eng
PT  - Journal Article
DEP - 20230710
PL  - England
TA  - Appl Radiat Isot
JT  - Applied radiation and isotopes : including data, instrumentation and methods for 
      use in agriculture, industry and medicine
JID - 9306253
SB  - IM
OTO - NOTNLM
OT  - Bi(2)O(3)
OT  - Gamma shielding
OT  - High density polyethylene
OT  - Layered structure
OT  - Neutron
OT  - Ulexite
COIS- Declaration of competing interest The authors declare the following financial 
      interests/personal relationships which may be considered as potential competing 
      interests: Umit Alver, Selcen Uzun Duran, and M. Bilge Demirkoz have patent 
      pending to Turkish Patent and Trademark Office.
EDAT- 2023/07/16 01:07
MHDA- 2023/07/16 01:08
CRDT- 2023/07/15 18:01
PHST- 2023/01/27 00:00 [received]
PHST- 2023/06/22 00:00 [revised]
PHST- 2023/07/07 00:00 [accepted]
PHST- 2023/07/16 01:08 [medline]
PHST- 2023/07/16 01:07 [pubmed]
PHST- 2023/07/15 18:01 [entrez]
AID - S0969-8043(23)00293-2 [pii]
AID - 10.1016/j.apradiso.2023.110940 [doi]
PST - ppublish
SO  - Appl Radiat Isot. 2023 Oct;200:110940. doi: 10.1016/j.apradiso.2023.110940. Epub 
      2023 Jul 10.