Question

QUESTION 80 If a series of exams was performed several times in rapid succession generating 120,000 HU, according to the anode cooling curve shown here, how long would it take for the X-ray tube to completely cool? Give your answer to the nearest minute. Anode cooling chart (II) Maximum Heat Storage Capacity of Anode 1000 HU/sec decal Imput curve 500 HU/sec Heat units stored (x 1000) 350 HU/sec 250 HU/sec 2 12 13 14 3 4 5 6 7 8 9 10 11 Elapsed time (min) Add module code number and lesson title

Answer 1

ANSWER: Clearly seen from dushed line point at 120x 1000 HU, I too= 5 minutes → To coll down completely at t1= 13.5 minutes Therefore, so time taken for x-hey tube to cool completely = (13.5-5) = 8.5 minutes - X