Which instrument is used to check the accuracy of milliamperage (mA) and kilovoltage peak (kVp) in x-ray machines?

The instrument utilized to check the accuracy of milliamperage (mA) and kilovoltage peak (kVp) in x-ray machines is an equipment survey device. These devices are specifically designed to assess and calibrate diagnostic imaging equipment, ensuring that the x-ray output is consistent and within acceptable safety and performance standards.

The functionality of an equipment survey device includes measuring essential parameters such as mA and kVp, which are critical for the proper operation of x-ray equipment. Accurate measurements ensure that the x-rays produced are of the correct intensity and energy for diagnostic purposes. This contributes to both the efficacy of the imaging process and the safety of both patients and operators.

In contrast, other instruments serve different functions; for instance, environmental survey devices are primarily used for measuring radiation levels in the surrounding environment, while personal dosimetry devices are worn by individuals to monitor personal exposure to radiation over time. A radiation spectrometer is more focused on analyzing the energy distribution of radiation rather than checking the performance of x-ray machines.

This distinction illustrates why the equipment survey device is specifically tailored for calibrating and assessing the key operational parameters of x-ray machines, making it the appropriate choice for this task.