Composite Material for Shielding Mixed Radiation

Hu, Huasi

doi:10.5772/14238

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…10,11 It is against the neutron and γ ray spectrums on the inner surface of the reflector for CANS. Epoxy resin, curing agent, B 4 C particles, Pb particles and nano-TiO 2 particles are selected as the components of the material.…”

Section: Optimal Design and Manufacture Of New Shielding Materialsmentioning

confidence: 99%

New shielding material development for compact accelerator-driven neutron source

Wang

et al. 2017

AIP Advances

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The Compact Accelerator-driven Neutron Source (CANS), especially the transportable neutron source is longing for high effectiveness shielding material. For this reason, new shielding material is researched in this investigation. The component of shielding material is designed and many samples are manufactured. Then the attenuation detection experiments were carried out. In the detections, the dead time of the detector appeases when the proton beam is too strong. To grasp the linear range and nonlinear range of the detector, two currents of proton are employed in Pb attenuation detections. The transmission ratio of new shielding material, polyethylene (PE), PE + Pb, BPE + Pb is detected under suitable current of proton. Since the results of experimental neutrons and γ-rays appear as together, the MCNP and PHITS simulations are applied to assisting the analysis. The new shielding material could reduce of the weight and volume compared with BPE + Pb and PE + Pb.

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Section: Optimal Design and Manufacture Of New Shielding Materialsmentioning

confidence: 99%

New shielding material development for compact accelerator-driven neutron source

Wang

et al. 2017

AIP Advances

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“…Typically, gamma radiation has been used in order to test the shielding capability of natural polymers. Cotton fabric coated with different materials such as barite (barium sulphate) [56,57], raw jute or composites made with jute [58][59][60], natural rubber with carbon nanotube additions [61] possess the ability to shield gamma radiation. Rare-earth-doped rubber can attenuate cosmic rays by up to 10% compared with conventional aluminum shielding [62].…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of the effectiveness of natural polymers and conventional space radiation shielding polymers in spacecraft for prolonged space expeditions

Al Zaman,

Roy,

Sarker

et al. 2023

Mater. Res. Express

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This paper investigates the shielding effectiveness of natural polymers, such as natural rubber and cotton, against space radiation. The results are compared with those of conventional shielding materials, such as polyethylene, Kevlar, and polycarbonate. Monte Carlo simulations were performed using a Geant4-based tool, Multi-layered shielding simulation software (MULASSIS). The shielding properties were studied using proton, alpha, and iron ions with energies of 1 GeV/n. Online Tool for the Assessment of Radiation in Space (OLTARIS) is used for calculating the effective dose equivalent for the GCR spectra. Both studies showed that the natural polymers are just as effective as conventional space radiation shielding materials in terms of dose reduction. Natural rubber is found to be the most effective among the natural polymers. For 50 g/cm2 aluminum with 20 g/cm2 layer of chosen materials configuration, the effective dose equivalent values (mSv/day) for Polyethylene, Kevlar, Polycarbonate, Kapton, Epoxy, Dacron, and Vectran were 0.93, 1.08, 0.995, 1.056, 1.007, 1.031, and 1.042, respectively. The effective dose equivalent values (mSv/day) for natural polymers (natural rubber, cotton, jute, and silk) under the same conditions were 0.95, 1.004, 1.036, and 1.004, respectively. The challenges of utilizing radiation shields made of natural polymers are also briefly covered.

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State-of-the-art ensemble learning and unsupervised learning in fatigue crack recognition of glass fiber reinforced polyester composite (GFRP) using acoustic emission

2023

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Composite Material for Shielding Mixed Radiation

Cited by 4 publications

References 10 publications

New shielding material development for compact accelerator-driven neutron source

New shielding material development for compact accelerator-driven neutron source

Comparative analysis of the effectiveness of natural polymers and conventional space radiation shielding polymers in spacecraft for prolonged space expeditions

State-of-the-art ensemble learning and unsupervised learning in fatigue crack recognition of glass fiber reinforced polyester composite (GFRP) using acoustic emission

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