SECTION 252:410-11-39. Shutters

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Unless an x-ray output of a <1 MeV system can be brought to the prescribed exposure parameters within 5 seconds, a shutter with a lead equivalency not less than that of the tube housing assembly must attenuate the beam. After the unit is at operating parameters, the operator must be able to control the shutter electrically from the control panel. A indication of shutter position must appear at the control panel.

[Source: Added at 17 Ok Reg 1136, eff 6-1-00]

                    
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