4-MV linear accelerator is installed 3 meters from a 150-cm thick wall of concrete separating the treatment room from an automatic elevator. The accelerator treats 150 patients per week with an average isocenter dose of 200 cGy.       What is the transmitted dose to the elevator?     What is the minimum thickness of concrete necessary to keep the dose below the maximum level?

Q: sample 3.00 hours before the injection (at 7:00 am) with an activity of 3.53 μCi at the preparation…

A:

Q: A Co-60 source gives a gamma dose rate of 120 μSv/h at 2.2 m away. At what distance (in meter) will…

A:

Q: Suppose one food irradiation plant uses a 137 Cs source while another uses an equal activity of 60…

A:

Q: A 9.0Ci Ir-192 source (half-life = 73.8 days) was installed in a high dose rate brachytherapy…

A: Given: Activity of sample = 9 Ci Half life of sample = 73.8 days

Q: If the absorbed dose is 50 rad and Q is 10. What is Dose equivalent in rem and Sv

A: Given Absorbed dose= 50 rad= 0.5 Gy Q=10

Q: A thyroid cancer patient is given a dosage of 131I (half-life = 8.1 d). What fraction of the dosage…

A:

Q: 12. A point source of 5-MeV y-rays with intensity 3 x 103 y-rays/cm2- sec is shielded with 50 cm of…

A: Given: The energy of the Gamma-rays is E = 5 MeV The intensity of the point source is I0 = 3 x 103…

Q: 15. An 85 kg person was exposed to a gamma source and received a whole body dose of 0.5 Sv. How much…

A: The dose equivalent is given by

Q: A 70kg person experiences a whole body exposure to alpha radiation, RBE=15 with energy 4. 77MeV. A…

A:

Q: 14. Iodine-131, a beta emitter, has a half-life of 8 days. A 2-gram sample of initially pure…

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: A mouse has a thickness of approximately 20mm. Assume the mouse is completely composed of the ICRU4…

A: Given: In this question, the given details are, A mouse has a thickness of approximately 20mm.…

Q: A person is to work in a mixed field consisting of 5mGy/h of gamma radiation, 1.0 mGy/h of beta…

A: The ICRP standard for the whole body is 500 mSv.

Q: Pions implanted into undoped Si have a Gaussian profile with a peak dopant concentration of…

A:

Q: 5. A small calibrated dosimeter records an exposure of 200 R when embedded in an equilibrium…

A: Given: Dosimeter records an exposure of 200 R HVL = 2.0 mm eu  To find the dose to the bone Formula…

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 worker will need to conduct a repair to a pipe containing radioactive waste. The pipe is 10 m…

A: Part (a): Given that the distance of the worker from the radiation pipe is 50 cm, the radiation dose…

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: Lead shield that is 0.27 mm thick is equivalent to 1 HVL. How thick should the lead shield be if the…

A: Lambert's law states that the intensity of the radiation (I) falls exponentially as the thickness…

Q: Calculate the dose in Sv to the chest of a patient given an x-ray under the following conditions.…

A: Energy, the intensity of radiation, exposure time, and area of cross-section is related by the…

Q: A cobalt 60 source with activity 2.60 x 10^4 ci is embedded in a tumor that has mass 0.20kg.The…

A:

Q: given 4hrs of 80dBA exposure ,2hrs of90 dBA exposure and 2hrs of 85 dBA exposure,what is the % dose?…

A:

Q: Based on the linear, non-threshold dose-response model, the risk factors for excess cancer incidence…

A: Answer in the next step.....

Q: At 3 ft from a source, the dose rate is 25 mrem/hr. How far away from the source should somebody so…

A: According to guidelines we need to solve only first question kindly repost other questions in the…

Q: A cobalt-60 source with activity 2.6010-4 Ci is embedded in a tumor that has mas 0.20 kg. The source…

A: Hai, since there are multiple sub parts posted, we will answer the first three sub parts. i.The…

Q: Technetium-99 m has a half life of 4.8 hours. If a patient receives a dose with an activity of 60.2…

A: Given data :          Half life (t1/2) = 4.8 hours          Dose received (N0) = 60.2 mCi…

Q: A sample contains 1.0 GBq of ⁹0 Sr and 0.62 GBq of ⁹0Y. (a) What will be the total activity of the…

A:

Q: technetium half life is 4.8 hours. If a patient receicves a dose with an activity of 35.9 mCi of…

A: Half life of technetium (t1/2) = 4.8 hours Initial activity (Ao) = 35.9 mCi

Q: how much dose is absorbed in 30 min in a sphere of water 1cm in diameter, with an infinitesimally…

A: Writing the reaction for the disintegration of P-32 P1532→S1632+β-+ν+1.17MeV Since the following…

Q: 38. A patient receives an x-ray dose of 200 mGy, a 20-keV neutron dose of 70 mGy, and a proton dose…

A: 38. The radiation weighting factor of neutron, proton, and x-Ray, wn=10wp=2wx=1 The whole body…

Q: photons into 10

A: The photon energy is given as, E=hcλE=6.626×10-24 ×3×108 J0.025×10-9

Q: Define the quantities of LET (Linear Energy Transfer), Exposure and Absorbed Dose? What is the…

A: Linear Energy Transfer (LET) is a measure of the amount of energy deposited by ionizing radiation…

Q: A radiation worker works four hours per day, 4 days/week, 40 week per year receives 0.2 mrad/h…

A: Given: A radiation worker works four hours per day,4 days/week. 40 week per year receives 0.2 m…

Q: A. A cobalt-60 source with activity 2.60×10-4 Ci is embedded in a tumor that has mas 0.20 kg. The…

A: Given : Activity (A) = 2.60 × 10-4 Ci  Mass (m) = 0.20 kg Energy (Eγ) = 1.25 MeV = 1.25 × 1.6 ×…