Suppose that in a radiographic installation, a male patient is facing the film w

Question

Suppose that in a radiographic installation, a male patient is facing the film with his chest 5.0 cm from the film, that the distance from the patient's chest to his back is 22.0 cm, and that the linear dimension of the focal spot is 2.5 mm. The radiographs are taken with the x- ray target (focal spot) a distance of 60 cm from the film, (i) Calculate the magnification of objects at the patient's chest and at the patient's back, (ii) What is the size of the penumbra (blurred region) for objects at the patient's back? What is the 8 bit binary representation of the number 235?

Explanation / Answer

1.) magnification= (22 cm/ 2.5 ) = 8.8 for 2.) 8.8(60) = 528 mm b.) 0001100,0101000,10101000

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