| タイトル | Transparent Metal-Salt-Filled Polymeric Radiation Shields |
| 本文（外部サイト） | http://hdl.handle.net/2060/20110023863 |
| 著者（英） | Lennhoff, John; Edwards, David; Harris, George |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 2003-07-01 |
| 言語 | eng |
| 内容記述 | "COR-RA" (colorless atomic oxygen resistant -- radiation shield) is the name of a transparent polymeric material filled with x-ray-absorbing salts of lead, bismuth, cesium, and thorium. COR-RA is suitable for use in shielding personnel against bremsstrahlung radiation from electron-beam welding and industrial and medical x-ray equipment. In comparison with lead-foil and leaded-glass shields that give equivalent protection against x-rays (see table), COR-RA shields are mechanically more durable. COR-RA absorbs not only x-rays but also neutrons and rays without adverse effects on optical or mechanical performance. The formulation of COR-RA with the most favorable mechanical-durability and optical properties contains 22 weight percent of bismuth to absorb x-rays, plus 45 atomic percent hydrogen for shielding against neutrons. |
| NASA分類 | Man/System Technology and Life Support |
| レポートNO | MFS-31371 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/268175 |
