2. (15) 18F is a common type of medical isotope called a “tracer” which can be used in CAT scans. The patient is injecte

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2 15 18f Is A Common Type Of Medical Isotope Called A Tracer Which Can Be Used In Cat Scans The Patient Is Injecte 1 (61.44 KiB) Viewed 36 times

2. (15) 18F is a common type of medical isotope called a “tracer” which can be used in CAT scans. The patient is injected with an 18F-based compound and the positron emissions are used to image the body. You receive an 18F sample 6 + 0.2 hours after it was created. You count it in your detection system for 30 s and record 3.00x106 counts. What was the original activity of the 18F sample (propagate uncertainty)? Given: Half life: 109.8 min 0.2 min Detector efficiency for 18F:1.0% = 0.1% Assume background is 0 s-l.