By National Council on Radiation Protection and Measurements
This can be a infrequent not easy to discover merchandise approximately X-RAY IMAGING a central authority file most likely.
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Extra resources for Structural Shielding Design for Medical X-Ray Imaging Facilities
Sample text
More distant, fully occupied area, such as an office across the corridor. The qualified expert needs to therefore take a larger view of the facility in arriving at the appropriate limitations for shielding design. Radiation workers may be assumed to spend their entire work period in controlled areas. Therefore, controlled areas such as x-ray rooms and control booths should be designed with an occupancy factor of unity. Areas within the department or suite which are not directly related to the use of radiation should not be classified as controlled areas.
Standard-weight (or normalweight) concrete is used for most foundations and main structural elements such as columns, beams and floor slabs. 4 g cm–3 (147 lb foot–3). Variations in concrete density may arise from differences in density of the components, from forming or tamping techniques used in the casting or from different proportions used in the mix. 3 SHIELDING DESIGN ELEMENTS / 21 Fig. 5. Schematic of a typical concrete floor slab poured on a steel deck. The minimum thickness should be used in calculating the barrier thickness.
The qualified expert needs to be aware that some dimensions may be to the center line of a wall, column, beam or slab. 1. 16 cm) 43 mmd Wooden doors (AWI, 2003) a This value represents the thickness of a single sheet of steel of the indicated gauge. 8 mm). b This value represents a “single pane” of 1/4 inch plate glass. c This value represents the gypsum thickness in a single sheet of 5/8 inch “Type X” gypsum wallboard. d This value represents the thickness of a single, solid-core wooden door. 2.