If we had a radioactive waste giving off 5 MeV of gamma radiation, how thick would the following substances need to be to reduce the radiation by 99%. Calculate for air, concrete, water, and lead.

Q: Calculate the activity of a pure 9.5-μgμg sample of 32 over 15P (T1/2=1.23×106s).

A: Mass of sample (m) = 9.5 ×10-6 grams Molecular mass of P-32 = 32 grams Half life (T1/2) = 1.23×106…

Q: 10.10. A sample of wood from an Egyptian mummy case has a specific activity of 9.41 d/min-g. How old…

A:

Q: 5. The control rods for a certain rector are made of cadmium (10 w/o), indium (15 w/o) and silver…

A: Given, Temperature, T=400°C Flux, Q0=5×1013neutons/cm2-s For the cadmium, ga=2.5589 Absorption…

Q: Samarium-153, a radioactive isotope with a half-life of approximately 48 hours, is used to treat…

A: Given, Half life, T1/2=48hours=2 days

Q: sheets of cardboard would be necessary to block 99% of beta radiation

A: Solution

Q: A 65.0 kg laboratory worker is exposed to 12.0 mJ of beta radiation with RBE = 1.5. Part A What is…

A:

Q: Determine the number of neutrons in a bromine nucleus, which has a radius of approximately 5.32 ✕…

A: The radius of the bromine nucleus is, r=5.32×10-15 m The mean radius of the nucleus can be given as,…

Q: You are hired as an expert witness for the defense of an employee who is being sued for exposing his…

A: The initial number of oxygen atoms   Half-life time,   The time interval,

Q: An x-ray technician works 5 days per week, 50 weeks per year. (Assume that the technician takes an…

A: Given data: Working rate = 5 days/week Per year working rate = 50 weeks/yr Number of per day taken…

Q: A 70-kg worker is accidentally exposed for 2.0 minutes to a 21-mCi source of beta radiation from a…

A: (a) Let M, T, and R denote the person’s mass, the time for exposure, and the radioactive sample’s…

Q: During a 2-h period of radiation therapy, alpha radiation is deposited into a patient's body at a…

A: time period (T) = 2 hr rate of deposition = 3.3×10-8 Jsmass of patient (m) = 59 kg radiation type :…

Q: A vial contains 1900 MBq of Technetium-99m on the 18th June 2014 at 06:00. How much will it contain…

A:

Q: A solution of In-111 DTPA from the Amersham Corp. in Great Britain arrives in your department with…

A: The half-life of In-111 according to the chart of nuclides is…

Q: A sealed box containing alloys of metal A and Metal B consisting of the same parts accordingly.…

A: half life of A = 12 years half life of B = 18 years mass of A = 0.53 kg mass of B = 2.20 kg A =…

Q: The maximum permissible workday dose for occupational exposure to radiation is 26 mrem. A 55-kg…

A: Here's how to find the ratio of the equivalent dose to the maximum permissible dose:Convert absorbed…

Q: Equivalent Dose = Absorbed Dose x Radiation weighting factor HT = DX WR re some Radiation weighting…

A: TAQ 5:Assessment criteria 3.3Calculation of the absorbed dose of radiation for tissue that suffers a…

Q: Iodine-131 is a beta-emitter, which decay by the first-order rate law with a half-life of 8.0 days.…

A: Let t1/2 denote the half-life of the Iodine-131. It is given as 8 days. The decay constant λ can be…

Q: Calculate the radiation dosage (in rads.) for an 77-kg person that is exposed for 6 .0 seconds to a…

A: The energy released in the form of beta radiation is

Q: 53.0 kgkg laboratory worker is exposed to 26.0 mJmJ of beta radiation with RBE = 1.5. What is the…

A:

Q: A 75 kg patient swallows a 30 mCi beta emitter with a halflife of 5.0 days, and the radioactive…

A: The number of radioactive nuclei did the patient swallowed be calculated as,…

Q: A patient receives an absorbed dose of 0.045 mSv of alpha radiation. The radiation weighting factor…

A: The equivalent dose is the product of the absorbed dose and the radiation weighting factor,