3. When the whole body is evenly exposed to 10 mGy of gamma-ray radiation, find tissue- weighted dose equivalents HT for gonads, breast, red bone marrow, lungs, thyroid and bone surfaces. Express the answer in Sievert and rem.
Q: In the figure below, a small block is sent through point A with a speed of 9.5 m/s. Its path is…
A:
Q: A 2.0-cm-tall object is 20 cm to the left of a lens with a focal length of 10 cm. second lens with a…
A: Height of the object, Object distance, to the left of the first lens.The focal length of the first…
Q: A point source of radioactive material produces a dose rate of 100 Gy/hr at 1 meter from the source.…
A:
Q: Radioactive indium-111 has an effective half-life of 2.5 days.If a dose with an activity of 3.0 mCi…
A:
Q: A beam of 168-MeV nitrogen nuclei is used for cancertherapy. If this beam is directed onto a…
A: The equation for the number of nitrogen nuclei that were stopped is given by,
Q: 14. A cancer patient received a gamma-ray dose of 0.1 Gy and a proton dose of 200 mGy. What was the…
A: Solution: The equivalent dose of the gamma-ray dose and the proton dose is given by the following…
Q: A 1.90-kg tumor is being irradiated by a radioactive source. The tumor receives an absorbed dose of…
A: Step 1:Given, the mass of the tumor is m=1.90 kg,the absorbed dese is AD=18.0 Gy=18.0×1.0J/kg=18.0…
Q: If meat is irradiated with 2523.0 Gy of x-rays, most of the bacteria are killed and the shelf life…
A: Mass of substance is Heat energy used for mass is Specific heat capacity of water is Find:The…
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 65 kg person undergoing a series of X-rays receives a dose of 12 rem. (a) What dose does he…
A:
Q: A certain biological sample is given a dose of 7.50 rad from alpha particles. (WR = 20) Calculate…
A: Given :- a dose of 7.50 rad from alpha particles WR = 20 Equivalent dose HT = absorbed dose * WR =…
Q: If a patient undergoing radiation treatment for prostate cancer receives 41 Gray ( Gy G y ) of gamma…
A: If a patient undergoing radiation treatment for prostate cancer receives 41 Gray ( Gy G y ) of gamma…
Q: a) A patient receives an absorbed dose of 0.045 mGy of alpha radiation. The radiation weighting…
A: 1. a) Given, Absorbed Dose = 0.045 mGy radiation weighting factor = 20 Therefore, Dose in Sv =…
Q: Calculate the radiation dosage and grace for a 57-kg person Who is exposed for 8.0 as to a 3.0 Ci…
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: a) A patient receives an absorbed dose of 0.045 mGy of alpha radiation. The radiation weighting…
A: a. Given Absorbed dose Dα = 0.045 mGy of α-radiation = 0.045×10-3 Gy Weighting factor WR = 20 b.…
Q: Assume that a full CT scan of the spinal cord (columna vertebralis) of a patient delivers an…
A: The objective of this question is to calculate the total number of X-rays necessary to deliver a…
Step by step
Solved in 3 steps with 2 images
- A man has been exposed to 1 mGy each of alpha, beta and gamma radiation from a source outside his body. What is the total equivalent dose to his whole body? (Do not include any dose that is delivered to skin alone.)5. The capture cross section of 5°Co for thermal neutrons is 37 b. (а) 5°CO (p = 8.9 x 10° kg.m³ ) ? What percentage of a beam of thermal neutrons will penetrate a 1 mm sheet of (b) What is the mean free path of thermal neutrons in 'Co ?d). A nuclear physicist works in a lab 5 days per week. He set his timing from 9AM to 3PM in first three days. It is known that he experienced a radiation field 15mR/hr there. Estimate the total daily exposure of radiations.
- 5. If a vial contains 600 MBq of indium-111 (In-111) at 12:30 (14 June 2014), how much radioactivity will be present in the vial at 14:00 on the 15 June 2019? Please input your answer in Bq and Ci.In an industrial accident a 65 kg person receives a lethal whole-body equivalent dose of 5.4 Sv from x rays. (a) What is the equivalent dose in rem? (b) What is the absorbed dose in rad? (c) What is the total energy absorbed by the person’s body? How does this amount of energy compare to the amount of energy required to raise the temperature of 65 kg of water 0.010 C°?A. 1.8 Sv 43. A patient received a full-body electron dose of 240 mGy, a neutron dose (1 В. 1.1 mSv С. 0.85 Sv MeV) of 43 rad, and an alpha particle dose of 0.30 Gy. What was the effective dose to this patient's stomach? D. 130 mSv
- What is the SI unit for radiation dose? What is its value in J/kg and rad?38. A patient receives an x-ray dose of 200 mGy, a 20-keV neutron dose of 70 mGy, and a proton dose of 200 mGy. What is the equivalent dose to this A. 0.95 Sv В. 1.1 Sv C. 4.9 Sv patient? D. 1.3 Sv A. 31 Sv В. 31 rеm С. 52 Sv 39. What is the equivalent dose for a patient who has received a gamma ray dose of 22 rad, a proton dose of 3.2 rad, and an alpha particle dose of 1.2 mGy? D. 52 rеmA 75 kg patient swallows a 30 mCi beta emitter with a halflife of 5.0 days, and the radioactive nuclei are quickly distributed throughout his body. The beta particles are emitted with an average energy of 0.35 MeV, 90% of which is absorbed by the body. What dose equivalent does the patient receive in the first week?
- A 0.025 nm X-ray source deposits 30 million photons into 10 grams of tissue. What is the absorbed dose in the tissue (in Gy)? What is the dose equivalent (in Sv)?Q.4. (b) The linear absorption coefficient of lead for 1.0 MeV gamma rays is 74 m¹. Calculate the half value Thickness and Thickness of lead to reduce the GO intensity of gamma rays to of its original value. 100 (log 2 = 0.693 and log 10 = 2.30) -|A particular radioactive source produces 100 mrad of 2-MeV gamma rays per hour at a distance of 1.0 m. (a) How long could a person stand at this distance before accumulating an intolerable dose of 1 rem? (b) Assuming the gamma radiation is emitted uniformly in all directions, at what distance would a person recieve a dose of 10 mrad/h from this source? dont provode hand written solution