Answer :
Final answer:
Early CT machines used gas detectors, similar to Geiger tubes, to convert X-ray energy into electrical energy, enabling the detection of ionizing radiation.
Explanation:
Early designs of computed tomography (CT) machines used gas detectors that converted X-ray energy directly into electrical energy. This facilitated the detection of ionizing radiation, a crucial principle underlying CT scanning. These gas detectors, similar to Geiger tubes, are filled with an insulating gas, and their operation is based on free ion pairs caused by ionizing radiation passing through the tube. These ions are attracted to the wire and cylinder within the tube, forming a current that is detected, thus indicating the presence and relative intensity of ionizing radiation. However, this early design was not 100 percent efficient as some radiation could pass through without producing enough ionization to be detected.
Learn more about CT Scan here:
https://brainly.com/question/7436350
#SPJ11
