Radiology Crossword Puzzle

QUESTIONS LIST: penumbra: the blurred margin of an image, roentgen: father of radiology, three: how many sets of paired physical gradients are present in an mr scanner, silver halide: coating on x-ray film, grid: prevent scattered radiation from reaching the image receptor, distortion: result of incorrect vertical angulation, barium: number 56 on the periodic table of elements and a good absorber of x-rays, chemical shift: difference in precession frequency of hydrogen in water and fat, fluoroscopy: the use of x-rays to obtain real-time moving images, hounsfield: father of ct, diamagnetic: material that is weakly repulsed by a magnetic field, orthopantogram: tomographic x-ray of the teeth, mandible and maxilla, rise time: time for a gradient to ramp from zero to its maximum value