What are neutrons ? |
Neutrons are produced through atomic fission.
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Use of neutrons |
| Neutrons are used for dispersing and diffracting nuclei, and they also have superior penetrating power, hydrogen detection capacity and magnetic detection capacity, etc., and these properties are used for elemental analysis, molecular structure analysis, creation of new materials, cancer research, non-destructive testing and a variety of other applications. |
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Neutron shielding rubber |
Neutron shielding rubber is used to protect against leaks, etc. for equipment which radiates neutrons.
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1. Neutron shielding capacity |
| Thickness |
5mm |
10mm |
I / Io |
1.412 × 10-3 |
3.18 × 10-5 |
μ |
13.13 |
10.36 |
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Io: incident neutron strength, I: penetrating neutron strength, μ: absorption coefficient
Results using testing and research nuclear reactors of the Japan Atomic Energy Research Institute Tokai Research and Development Center (Currently the Japan Atomic Energy Agency JAEA)
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2. Properties |
| Pulling strength |
4MPa （4MPa） |
| Elongation |
220% （200%） |
| Hardness |
69 （74）Durometer A |
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In parenthesis ( ): After aging at 70°C×96 hours
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3. Processability at usage sites |
･Processing on-site is easy
･Adhesive application on-site is easy
･Processing to design shapes is easy |
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Example uses of neutron shielding rubber |
| Brain cancer treatment medical irradiation chamber |
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| Research nuclear reactors JRR-2 |
Complete view of medical irradiation chamber |
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