Exam 34: Exposure Conversion Problems

A radiograph is produced at 10 mAs with a high frequency generator.The film is repeated using a single-phase, 2-pulse generator.Calculate the new mAs.

When switching from an 8:1 grid to a 12: grid at 85 kVp, the change in mAs will be

Match the following choices with the statements as each relates to exposure conversions. -change from 12:1 to 10:1 with mAs compensation

The relationship between receptor speed and exposure mAs is

A satisfactory radiograph is produced using the fixed kVp theory.The part measuring 10 cm and 8 mAs was used.To maintain exposure, what mAs should be used if the part measures 14 cm?

A satisfactory radiograph is produced using the fixed kVp theory.The part measuring 10 cm and 6 mAs was used.To maintain exposure, what mAs should be used if the part measures 6 cm?

Which of the following exposure settings will yield an image with the shortest scale of contrast?

A radiograph is produced using 70 kVp and 10 mAs.If mAs is increased to 20, how much kVp is required to maintain exposure?

A radiograph is produced at 10 mAs with a single-phase, 2-pulse generator.The film is repeated using a high frequency generator.Calculate the new mAs.

A radiograph is produced at 10 mAs with a single-phase, 2-pulse generator.The film is repeated using a high frequency generator with a three-phase source of power..Calculate the new mAs.

A radiograph is produced using 10 mAs and an image receptor with an RS of 200.Determine the relative speed of the new image receptor if 5 mAs is used.

A radiographer has received a request for an examination that requires a 12:1 grid based upon patient thickness.The exposure technique chart suggests a non-grid technique of 6 mAs at 90 kVp.The required mAs with the grid will be

Match the following choices with the statements as each relates to exposure conversions. -Any change will not affect density or contrast.

A radiographic examination has been taken using the following exposure conditions: 400 mA, 70 ms, 80 kVp, 1,2 mm fs, 200 RS receptor, 12: grid, 44" SID To increase the contrast, the most appropriate choice would be to

A radiograph is produced using 70 kVp and 10 mAs.If kVp is decreased to 60, how much mAs is required to maintain exposure?

A radiograph is produced using 10 mAs at a 40 in.distance.Calculate the new mAs at a 72 in.distance.

Match the following choices with the statements as each relates to exposure conversions. -exposure maintenance formula

Match the following choices with the statements as each relates to exposure conversions. -affects radiographic contrast with a direct relationship