Which set of technical factors would yield the greatest image receptor exposure?

The option that yields the greatest image receptor exposure incorporates the highest combination of milliamperes and duration of exposure time while maintaining the same kilovoltage peak (kVp). In this case, the correct answer is based on the relationship between milliampere-seconds (mAs) and image receptor exposure.

mAs directly influences the amount of radiation produced; it is calculated by multiplying the milliamperes (mA) by the time in seconds (s). Thus, higher mAs equates to more x-ray photons being sent to the image receptor, resulting in greater exposure.

In this option, the use of 400 mA for 0.30 seconds provides a total mAs of 120 (400 mA * 0.30 s = 120 mAs). This significant mAs figure ensures that the maximum amount of radiation reaches the image receptor, producing a brighter image with enhanced detail and diagnostic capability.

The other options feature lower mAs values attributable to either reduced milliamperes or shorter time durations, leading to diminished image receptor exposure in comparison to the chosen option. Hence, the selected set of technical factors maximizes the exposure effectively, ensuring the quality of the resultant image is optimized.