A 70-kg researcher absorbs 4.5 × neutrons in a work day, each of energy 1.2 MeV. The relative biological effectiveness (RBE) for these neutrons is 10. What is the equivalent dosage of the radiation exposure for this researcher, in millirem?

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

A: Given that,The intensity of x-ray beam (I) = 1.50 W/m2The area of the chest exposed (A)= 0.0750…

Q: During an X-ray examination, a person is exposed to radiation at a rate of 2.80×10-5 grays per…

A: Energy absorbed Eabs=Dtmt Here, Dt is the absorbed dose per second given in Gy/s.

Q: The dosage of technetium-99m for a lung scan is 20. µCi /kg of body mass. How many millicuries of…

A: Given the dosage of technetium-99m for a lung scan is 20. µCi /kg of body mass. - How many…

Q: A person whose mass is 67.0 kg is exposed to a whole-body dose of 37.0 rad. How many joules of…

A:

Q: A particular radioactive source produces 144 mrad of 1-MeV gamma rays per hour at a distance of 1.0…

A: Given data: The dose in rad is, Dr= 144 mrad= 0.144 rad in one hour In t hours dose is, D= 1 rem…

Q: chamber reads 90% of the incident radiation. The pressure is decreased by a factor of 10. What…

A: When the pressure inside the chamber is decreased by a factor of 10, the ionization reading will…

Q: A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 141 MeV, and the relative…

A: The energy of each nucleus,           The relative biological effectiveness of this type of…

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

A:

Q: Gamma rays may be used to kill pathogens in ground beef. One irradiation facility uses a 60Co source…

A: The total amount of energy of gamma rays per beta decay of 60Co can be given as, Here, ε represents…

Q: ching the tumor, ai le is 4.5 MeV. The R 14. Find the biolo dose given to the t

A: Given as, The energy particle= 4.5 MeV, Particle per second= 2.1x1010.

Q: A person whose mass is 75.0 kg is exposed to a whole - body dose of 25.0 rad. How many joules of…

A: Formula to calculate the energy deposited in person’s body is,

Q: The electrical power output of a large nuclear reactor facility is 900 MW. It has a 35.0% efficiency…

A: Now a days , Nuclear reactors are the main source of energy , to produce electricity, In…

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: A beam of particles is directed at a 0.012-kg tumor. There are 2.1 x 1010 particles per second…

A: Given: The mass of the tumor is 0.012 kg.            The number of particles per second is 2.1×1010.…

Q: We use a Geiger counter to measure RT, the total counting rate (in counts per minute) due to a…

A:

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: 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: During an X-ray examination, a person is exposed to radiation at a rate of 5.8 x 10-5 grays per…

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: A 267-rad dose of radiation is administered to a patient in an effort to combat a cancerous growth.…

A: d= 267 rad dose Cw=4186 J/kgoC m=0.25 kg

Q: A Geiger counter reading of a radioactive sample is initially 7020 counts per minute. The same…

A:

Q: A point source of gamma radiation has a half-life of 45.0 minutes. A Geiger counter placed 3.00m…

A: We need two fomulas to solve this problem   1.  If N0 is the no. of gamma rays emerges from a source…

Q: Geiger counter reading of a radioactive sample is initially 7220 counts per minute. The same sample…

A: Given: The initial amount is 7220 counts per minute. The final count is 422 counts per minute. The…

Q: About 35 eVeV is required to produce one ion pair in air. One of the two definitions of roentgen is…

A:

Q: The intensity of radioactivity depends on the distance of the recipient from the source of radiation…

A: Given that Intensity is inversely proportional to the distance from the object. so I1  DIRECTLY…

Q: A. 1.8 Sv 43. A patient received a full-body electron dose of 240 mGy, a neutron dose (1 MeV) of 43…

A: Effective dose is used to assess the potential for long-term effects that might occur in the future.…

Q: using

A:

Q: What is the SI unit for radiation dose? What is its value in J/kg and rad?

A: The full form of the SI unit is the International System of Units. The SI unit is the system of…

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: 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,…