CFR 1020.32 Fluoroscopic equipment (b)(5) Rectangular image receptors

5) Fluoroscopy and radiography using the fluoroscopic imaging assembly with inherently rectangular image receptors.

For x-ray systems manufactured on or after June 10, 2006, the following applies:

(i) Neither the length nor the width of the x-ray field in the plane of the image receptor shall exceed that of the visible area of the image receptor by more than 3 percent of the SID. The sum of the excess length and the excess width shall be no greater than 4 percent of the SID.

(ii) The error in alignment shall be determined along the length and width dimensions of the x-ray field which pass through the center of the visible area of the image receptor.