Calculate dose to muscle using a 5MeV beam and 50R exposure.
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Calculate dose to muscle using a 5MeV beam and 50R exposure.
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- Calculate the volume needed to dispense a 21 mCi dose from a Tc-99m DTPA vial containing 400 mCi in 6 ml. Answer:Inverse Square Distance of 40” = 5mR New distance = 36”, what is your new dose ___________A technician is in an area for 10 minutes and the reading on the survey meter is 5mR/h. What dose of radiation does the * ?technician receive
- 27. A shielded vial with a 1-mm thick lead shield contains Tc. If A. 11.8 mR/hr В. 23.5 mR/hr C. 47 mR/hr D. 94 mR/hr the unshielded sample yielded an exposure rate of 188 mR/hr, what will the exposure rate be from the shielded vial? (The lead HVL for Tc is 0.25 mm.) 28. If "Co gives an exposure rate of 38 R/hr at 2 m, at least how А. 2 В. 3 many HVLS of concrete shielding are required to reduce this exposure to below 2 R/hr at the same distance? (The concrete HVL for "Co is 6.2 cm.) С. 4 D. 5If the dose rate from a sample of Ra-223 was found to be 5.0 x 10-5 mSv per hour at 1.8 metres, calculate the dose rate at 4.8 metres. Show your calculations. Give your answer to two significant figures.