Фрагмент документа "МЕЖДУ ПРАВИТЕЛЬСТВОМ РОССИЙСКОЙ ФЕДЕРАЦИИ И ПРАВИТЕЛЬСТВОМ ЯПОНИИ О СОТРУДНИЧЕСТВЕ В МИРНОМ ИСПОЛЬЗОВАНИИ АТОМНОЙ ЭНЕРГИИ".
Categorization of nuclear material
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| Nuclear | Form | Category | Category | Category |
| Material | | I | II | III <c> |
|----------------|----------------------|----------|---------------|----------------|
| 1. Plutonium | Unirradiated <b> | 2 kg or | Less than | 500 g or less |
| <a> | | more | 2 kg but more | but more than |
| | | | than 500 g | 15 g |
|----------------|----------------------|----------|---------------|----------------|
| 2. Uranium-235 | Unirradiated <b> | | | |
| | - uranium enriched | - 5 kg | - Less than | - 1 kg or less |
| | to 20% 235 or more | or more | 5 kg but more | but more than |
| | U | | than 1 kg | 15 g |
| | - uranium enriched | | - 10 kg or | - Less than |
| | to 10% 235 but less | | more | 10 kg but more |
| | U | | | than 1 kg |
| | than 20% 235 | | | |
| | U | | | |
| | - uranium enriched | | | - 10 kg or |
| | above natural, but | | | more |
| | less than 10% 235 | | | |
| | U | | | |
|----------------|----------------------|----------|---------------|----------------|
| 3. Uranium-233 | Unirradiated <b> | 2 kg or | Less than | 500 g or less |
| | | more | 2 kg but more | but more than |
| | | | than 500 g | 15 g |
|----------------|----------------------|----------|---------------|----------------|
| 4. Irradiated | | | Depleted or | |
| Fuel | | | natural | |
| | | | uranium, | |
| | | | thorium or | |
| | | | low-enriched | |
| | | | fuel (less | |
| | | | than 10% | |
| | | | fissile | |
| | | | content) | |
| | | | <d>/<e> | |
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<a> All plutonium except that with isotopic concentration
exceeding 80% in plutonium-238.
<b> Nuclear material not irradiated in a reactor or nuclear
material irradiated in a reactor but with a radiation level equal to
or less than 1 Gy/hr (100 rads/hr) at one meter unshielded.
<c> Quantities not falling in Category III and natural uranium,
depleted uranium and thorium should be protected at least in
accordance with prudent management practice.
<d> Although this level of protection is recommended, it would be
open to the Parties, upon evaluation of the specific circumstances, to
assign a different category of physical protection.
<e> Other fuel which by virtue of its original fissile material
content is classified as Category I or II before irradiation may be
reduced one category level while the radiation level from the fuel
exceeds 1 Gy/hr (100 rads/hr) at one meter unshielded.
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Фрагмент документа "МЕЖДУ ПРАВИТЕЛЬСТВОМ РОССИЙСКОЙ ФЕДЕРАЦИИ И ПРАВИТЕЛЬСТВОМ ЯПОНИИ О СОТРУДНИЧЕСТВЕ В МИРНОМ ИСПОЛЬЗОВАНИИ АТОМНОЙ ЭНЕРГИИ".