| 摘要 |
PURPOSE:To obtain a radiation detector the shape of which can be changed in accordance with an object to be measured and which does not require any special external equipment for the evaluation of radiation doses by providing solid bodies which can sense radiations and have a fixed shape and a plastic sheet-like fixture which scatteredly supports the solid bodies. CONSTITUTION:A sheet 13 is made of a easily cuttable material, such as the plastic rubber, plastics, etc., and projections are planted on the surface of the sheet 13 at regular intervals L. Solid bodies 14 which have appropriate shapes due to their flexible structures and can sense radiations are fixed on the surface of the sheet 13 by press- fitting the solid bodies 14 among the projections. The solid bodies 14 are made of, for example, an alkali halide, such as LiF, NaC, etc., and the diameters D of the bodies 14 are at the level of millimeters in maximum. The intervals L of the projections on the sheet 13 are changed depending upon the state of radiations. The sensitivity of the sheet 13 can be freely set by changing the intervals L of the projections and diameters Dof the solid bodies 14. In addition, when the solid bodies 14 are fixed in an area irradiated with radiations, the exposure dose can be recognized, because the color or color density of the solid bodies 14 changes due to their radiation physical properties.
|
