71 A 20 mCi gamma source emits 0.200 Mev photons 65% of the time and 0.750 Mey photons 35% of the time. (a) Determine the reduced activities. (b) What is the total exposure rate at a distance of 10.0 centimeters from the source?
Q: Q6. When a slab of material is inserted between a collimated 60ºCo source and a detector, it is…
A:
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: During X-ray diagnostics, lead aprons made of a thin layer of lead are used in order to protect…
A: The expression for intensity attenuation is given as, The linear attenuation coefficient is given…
Q: A thermal nuclear reactor is in steady-state operation with no external neutron sources, in which…
A: The expression for final reactor power is P=P0etτ…
Q: Match 1, 2, 3, 4 with A, B, C, D correctly. Fill in Letters Medical Imaging Technical Description 1:…
A: X-ray CT Planar scintigraphy SPECT PET
Q: A single layer of shielding transmits 70% of the radiation from a dangerous source. How many layers…
A:
Q: 42.11 As part of a radiotherapy course a patient is injected with 0.100× 10-6 mol of an 1.2 MeV a…
A: Hi there! Since there are multiple subparts in the question posted and it is not mentioned what is…
Q: Why does a 99mTc generator need to be shipped once a week to hospitals? (a) What is the activity of…
A: Technetium-99m is produced from the synthetic substance molybdenum-99 which is a by product of…
Q: The point source Co-60 emits gamma with energies of 1.17 MeV and 1.33 MeV. Each of these energies…
A:
Q: A beam of photons, with cross- sectional area of 2.0 square centimeter, carries 7.0 x 10^8 photons…
A: A beam of photons Cross sectional area= 2.0 cm2 , carries number of photons=7.0×108 photons per…
Q: Estimate the time constant from the average half-life.
A:
Q: 1.86 O Hl 20% | 2:39 PM K/s iv. What exposure time is required for an equivalent dose of 200 rem? B.…
A: Since you have asked multiple questions, we will solve the first question for you. If you want a…
Q: 10. If the linear attenuation coefficient in lead for the gamma rays from an isotope is 0.625 cm-1.…
A:
Q: 8-The 82Sr (T2 = 600hr) and 82 Rb (T2= 0.021hr) generator. If 100 MBq of 82Sr is %3D %3D 1/2 nresent…
A: Since you have posted two different questions, we will solve the first one only. Please resubmit the…
Q: Q. No. 5: Write down the procedure used to investigate the attenuation of gamma radiations with…
A: Procedure to investigate the attenuation of gamma radiations can be given as Measurements to be…
Q: A 75 kg patient is given a bone scan. A phosphorus compound containing the gamma-emitter 99TC is…
A: Given that,Mass of patient : m = 75 (kg)Here we need to find the total energy deposited in the…
Q: 5. You figure the Radiation intensity without shielding is 78 mSv/h for a fellow CEDO's radiographic…
A: Concept used: HVL (half value layer) is the thickness at which value of intensity becomes 50% of its…
Q: Pulse-combustion furnaces can be cost-effective in very cold climates or homes with high heating…
A: It is completely different from conventional energy furnaces. it is considered as the most energy…
Q: est x ray uses 14 keVkeV photons. A 77 kgkg person receives a 26 mremmrem dose from one x ray that…
A: Given;- chest x-ray uses 14 keV photons. A 77 kg person receives a 26 mrem dose from one x-ray that…
Q: Calculate the kinetic energy of alpha particle that comes from Th28990.
A: The following equation represents the radioactive decay of an α- particle H24e: PZA → DZ-2A-4 + H24e…
Q: A 2.00-T magnetic field is applied perpendicular to the path of charged particles in a bubble…
A: magnetic field, B =2 T energy, K = 10 MeV
Q: The fusion reaction shown is part of the proton-proton chain that occurs in the core of the sun.
A:
Q: Calculate the current produced when alpha particles (10 MeV) pass through a gas in ionization…
A: rate of particles = 600 particles / h = 600 /3600 particles/ second = 1/6 particles/ second We…
Q: A(n) 13-kg particle has energy 37,173 kg c2 Calculate gamma (y).
A: Using formula
Q: Estimate the average range of 1.31 MeV alpha particles striking an aluminum slab parallel to its…
A: The given information in the question is: The energy of the alpha particles: 1.31 MeV The density…
Q: Radioactive Pm-147 decays by the release of a beta-particle with an average energy of 62.0 keV. A…
A: Given That: Radioactive pm147, Atomic mass is 147 amu. To find the mass of each atom:…
Q: How far is the 5.49MeV alpha particles emitted from Am-241 in the air?
A: Given, mass of the alpha particle=6.645×10-27kg Energy 0f the alpha particle=5.49Mev
Q: If you were to use a collimator with a shielding factor of 20 for a RED (radiation exposure device)…
A: if we were to Use A Collimator With A Shielding Factor Of 20 For A RED (radiation Exposure Device)…
Q: The mass attenuation coefficient of 511 keV photons in water is approximately 0.1 cm2/g. 1. What is…
A: Given that:Energy of the photon, E=511 keVAttenuation coefficient, α=0.1 cm2/gDiameter of the…
Q: 2. Consider two gamma radioactive sources: S1 has activity 50 uCi (micro-Curie) and S2 has activity…
A:
Q: About 35 eVeV is required to produce one ion pair in air. One of the two definitions of roentgen is…
A:
Q: What are the minimum energies of the two oppositely directed gamma rays in a PET procedure?
A: In positron emission tomography, two oppositely directed gamma rays produces a positron and…
Q: The point source Co-60 emits gamma with energies of 1.17 MeV and 1.33 MeV. Each of these energies…
A: Energy of gamma rays = 1.17 Mev and 1.33Mev At Both energy same number of photon emitted Flux…
Q: The radionuclide Tc-99m is a gamma photon emitter. The emitted gamma photon energy is 141 keV. The…
A: Given: wavelength of each visible photon = λ = 550 nm energy of emitted gamma photon = Eg = 141 keV…
Q: Calculate the wavelength of a 0.652 MeV Gamma Ray
A: Gamma rays are high energy photons released during radioactive decay. It is the most energetic…
Q: a pregnant woman should be exposed to no more than 20.0 rad, and a radiation source gives 38.0 rad…
A:
Q: An XPS with an instrument work function of 4.5eV was used to analyze a surface. An observed kinetic…
A: Ebind=Ein-Ekin-ϕ0 Ein energy of x ray source Ekin is the kinetic energy ϕ0 is the work function…
Q: 3. a) Alpha particles of the same initial speed are shot at the same intensity toward gold, silver,…
A: Hi! Thank you for your question. As per the guideline, we can solve three subparts at a time in case…
Step by step
Solved in 2 steps with 2 images