Tungsten is used as the target material on the tubes anode because it has a ___ atomic number and a ___ melting point. a. low, high b. high, low c. low, low d. high, high - ✔✔D. high, high ___ scanner design was the first to acquire four slices in a single rotation. a. second generation b. third generation c. multi-row detector d. continuous rotation - ✔✔A. second generation The enormous heat that builds up in the CT tube is caused by the: a. intensity of the x-rays emitted from the tube b. electron beam between the cathode and the anode in the tube c. x-ray filter in the tube which absorbs the lower energy photons before they can enter the patient d. collision of the electron beam with the tungsten target on the tube anode - ✔✔D. collision of the electron beam with the tungsten target on the tube anode The number of electrons that flow from the cathode to the anode in the tube is controlled by the: