Suppose an MRI scanner uses 100-MHz radio waves.(a) Calculate the photon energy.(b) How does this compare to typical molecular binding energies?

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Q: • What length of a 7.7-mW laser’s beam will contain 9.5 mJ ofenergy?

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Q: Integrated ConceptsSuppose an MRI scanner uses 100-MHz radio waves. How does this compare to typical…

A: The frequency of MRI scanner is 100 MHz. So to calculate its energy we use the formula, E=hν where e…

Q: What is positron emission tomography (PET) and how it works?

A: Positron Emission Tomography (PET) is also non-invasive and uses injections of radiopharmaceuticals…

Q: One half the γ rays from 99m Tc are absorbed by a0.170-mm-thick lead shielding. Half of the γ rays…

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Q: Positrons cannot penetrate matter more than a few atomic diameters, but positron emission of…

A: Positron emission tomography is a method that is used to observe brain structure and function. In…

Q: How X-ras work?

A: Answer:-   Solution:- X-Ray or X-Radiation is a highly penetrating radiation form from high-energy…

Q: How much energy does one photon of 1024 Hz gamma radiation carry?

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Q: The laser system tested for inertial confinement can producea 100-kJ pulse only 1.00 ns in duration.…

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Q: What thickness of aluminum is required to reduce 200Kev gamma rays to 10% of its original value?…

A: The relation between the Radiation Intensity (Ix) at any thickness x is given as, Ix = Io e-μx,…

Q: If the intensity of radiation from a radioactive sources is 7.9 units at a distance of 4.4 m, how…

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Q: How can some EM radiation be harmful to people?

A: There are a total of 7 types of Electromagnetic waves : Radio Waves Micro Waves Infrared Waves…

Q: Find required thickness of the protective lead shield in order to achieve 99 % reduction ofX-Ray…

A: Given: Reduction of X-ray intensity be 99 %  Let the Initial intensity be I0 and intensity after…

Q: Typical HVL values for X-ray radiation with energy 1 MeV are 3 cm for bone tissues, 2 cm for…

A: The intensity of a radiation as it passes through a length t in a medium with linear attenuation…

Q: Discuss the penetrating power and ionizing ability of each type of radiation.

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Q: For conventional radiography with a tungsten target, how much X-Ray beam intensity is due to…

A: Given: For conventional radiography with a tungsten target, how much X-Ray beam intensity is due to…

Q: Why is the relative sensitivity of a film dosimeter high at low energetic gamma rays?

A: The film badge dosimeter or film badge is a personal dosimeter used for monitoring cumulative…

Q: Which detector senses flashes of light produced by charged particles or gamma rays?

A: A scintillation counter will sense flashes of light produced by charged particles or gamma rays.

Q: What are x-rays used for?

A: Given:  X rays

Q: Calculate the CT numbers (HU) for the following tissues at given X-ray beam energies. Indicate…

A: The CT value of tissues on CT scan is the measure of their relative density on CT scan compared to…

Q: An alpha particle moves at 20Mm/s. What magnetic field strength would be required to bend them into…

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Q: In the network shown, Vo -6V. Find IS. 8 kQ 4 k2 4 k2 2 k2 Is

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Q: The HVL for Pb for a particular energy x-ray is 0.1mm. By how much will an x-ray beam be reduced, if…

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Q: Some types of MRI can produce images of resolution and detail similar to PET. Though the images are…

A: MRI and PET produces image of internal organ but there is some slight difference between both…

Q: Several people are exposed to 1 Gray of radiation. They are only protected by their clothes. The…

A: Alpha particles have low range and cannot penetrate skin as such. They are least damaging, until…

Q: The linear absorption coefficient of 1 MeV X-rays in water is 7.06 m-1. How many times will the…

A: As beam passes through a medium its attenuation is given by, I = I0 e-µxWhere: I = the intensity of…

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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: Calculate the Larmor frequency induced by the static magnetic field B, = 7 T and the excitation…

A: Given, B0=7 T B1=2×10-6 T gyromagnetic ratio of 13C γ=10.71 MHz/T

Q: of radio Therapy , 40 Gy- If The Example 2: During The Courge a Tumor Containing 10 Calls receives…

A: If the D0=2.2Gy we know D10=2.3D0=2.3*2.2=5Gy [appox]

Q: The binding energy of sodium is 2.28ev. Calculate the number of photon electron ejected by 1.00mm^2…

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Q: 14. A ray of light (in air) enters a thick plate of glass of refractive index n=1.58 at an angle of…

A: We are authorized to answer one problem at a time, since you have not mentioned which one you are…

Q: Is em radiation safe? Why or why not?

A: em radiation: Electromagnetic radiations originate from the electromagnetic field. The…

Q: What is the most harmful type of radiation?

A: Most harmful types of radiations are those that emits beta and alpha particles.

Q: 14. A ray of light (in air) enters a thick plate of glass of refractive index n=1.58 at an angle of…

A: Given: The refractive index of glass is n=1.58. The angle of inclination is θ=45°.   The…

Q: Can the harmful effects of radiation be minimized? How?

A: Can the harmful effects of radiation be minimized?

Q: The biological damage caused by 1 gray of a -radiation is compared with 1 gray of y-radiation in the…

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Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.