Explain single-photon-emission computed tomography(SPECT).
Q: What is the minimum wavelength in m of the x-ray photons from a 140 kV x-ray tube? (h = 6.63x1034…
A: We have,Potential of the tube, V=140 kVPlanck's constant, h=6.63×10-34 J.sSpeed of light, c=3×108…
Q: In a Compton scattering experiment, photons are observed after scattering (from an electron at rest)…
A: Given: Scattering angle Wavelength of scattered particle To find: Wavelength of incident particle…
Q: 6. 1A fluóréščěňčé tiššué sample has following optical properties: a scattering coefficient of 8cm…
A: The number of photons scattered from this location is 20
Q: What is the maximum amount by which the wavelength of an incident photon could change when it…
A: Atomic mass of the molecule, 44u =44×1.66×10-27=7.304×10-26kg
Q: 3. A 6-stage photomultiplier tube has a dark current of 2 nA. The secondary emission ratio of each…
A: Given information: A 6- stage photomultiplier tube has a dark current of 2 nA. The secondary…
Q: Explain why characteristic x rays are the most energetic in the EM emission spectrum of a given…
A: The electromagnetic radiation is emitted by an atom when an inner shell vacancy is filled is called…
Q: The intensity of sunlight that can be captured and detected by a visible light detector which has a…
A:
Q: An incandescent lightbulb is desired to emit at least 71 percent of its energy at wavelengths…
A: To determine the minimum temperature to which the filament of the incandescent lightbulb must be…
Q: Two scenarios: 1. A photon scatters off of a free electron and has a wavelength difference of…
A: The objective of the question is to determine which scenario more clearly demonstrates the particle…
Q: a) Show that AE/E, the fractional change in energy of a photon in a Compton effect, is equal to (hv…
A: Dear student as you have asked a question with multiple subpart, we will answer the first 3 subparts…
Q: a) Calculate the number of photoelectrons per second ejected from a 0.75-mm² area of sodium metal by…
A: a) The required number of photo-electrons is, n=PE =IAhcλ =IAλhc…
Q: ▼ In a photoelectric-effect experiment, the stopping potential is 1.37 V if the light used to…
A:
Q: By what rate a photon emitted from a sodium vapor lamp? Assume that the lamp's light is…
A: lambda=wavelength=589*10^-9 m E=hc/(lambda) h=6.625*10^-34 Js c=3*10^8 m/s on solving for E we…
Q: 1. Calculate the energy, in electron volts, of a photon whose frequency is a. 620 THz, 3.10 GHz and…
A: Given, Frequency: 620 THz, 3.10 GHz, and 46.0 MHz
Q: For the given figure, there is a tissue and vessel in the middle. 0.5 cm 1000 X-ray photons per m?…
A:
Q: A 600-keV X-ray beam is being shielded by a block of Tungsten (density = 19.3 g/cm3). What is the…
A: Disclaimer: Since you have asked multiple question, we will solve the first question for you. If you…
Q: You are studying a very distant quasar and are trying to determine how far away it is. The quasar is…
A: Given, λo = 121.6 nmλob = 130 nm
Q: A laser emission from a certain laser has an output power of 10 milli watts. If the wavelength of…
A: Given data:The power output from the laser is The wavelength of the emission is The planck's…
Q: What is the minimum wavelength in m of the x-ray photons from a 140 kV x-ray tube? (h =…
A: Given: The accelerating potential is V = 140 kV The Planck constant h = 6.63x10-34J·s The value of 1…
Q: The diameter of the nucleus is about 12.1fm. What is the kinetic energy of a proton with a de…
A: diameter of nucleus (d) = 12.1 fm de broglie wavelength of proton = 12.1 fm
Q: b). Which interaction is most useful for producing a diagnostic X-Rays image: photoclectric effect,…
A: X-rays are electromagnetic waves having wavelength ranging from 10 Pico meters to 10 nanometers,…
Q: Photons Q₁. A single photon of 5 MeV undergoes Compton scattering. If the scattering angle is 30°,…
A: Given,The initial energy, Angle, The inital wavelength of the photon,The energy of the photon,
Q: C4. In mammography, a 10-g molybdenum (Z = 42) target is irradiated by an X-ray beam source whose…
A:
Q: What is the wavelength in nm of a photon that has a momentum of 4.5*10^-27 kg.m/s
A: Momentum of the photon, Planck's constant, The momentum of the photon is given by the expression…
Q: Determine the number of photons with wavelengths between 705 and 713 nm escaping each second from a…
A:
Q: Calculate the frequency of a 4 MeV photon.
A:
Q: The attatched equation describes the cross section for the photoionization of a hydrogen atom in…
A: The attatched equation describes the cross section for the photoionization of a hydrogen atom in…
Q: Compute a rough estimate of the number of photons emitted each second by a 100-W lightbulb. You…
A: The power of the bulb is 100 W. Here we use the temperature as 3000 K.
Q: What is the diffraction limited resolution of 10 nm X-ray photons?
A:
Q: If the wavelength of a photon is 200nm, what is the energy in eV? Step by step please.
A: Given, The wavelength of the photon λ =200 nm =200×10-9 m. # Energy of the photon needs to be…
Q: 3. Which of the following has the least wavelength? a Gamma rays, b. blue light, c infrared…
A:
Q: 4. Numerical Question. The star Betelgeuse has a mass of about 18 Me and a radius of 800 Re. How…
A: Given: M=18 Me R=800Re
Q: A 610 keV gamma ray is incident on an electron at rest. If the scattered photon has a scattering…
A: Step 1:Step 2:Step 3:Step 4:
Q: ) Calculate how many photons are emitted in each minute in a UV laser source, which emits light at a…
A:
Q: The energy of a photon is 52.6 eV. What is the wavelength in of the photon? Assume 3 sig figs. 1nm =…
A: Energy of the photon, E=52.6eV=52.6×1.6×10-19J speed of photon i.e. light is c=3×108m/s plank…
Q: A beam of monochromatic (single energy) photons are incident on a slab of aluminum with thickness of…
A: Solution: Calculate the intensity of the beam after the first slab using the following relation.…
Q: 7. If x-ray photons with intensity of 10 W/m2 of energy 70 keV travels through 3 cm of skeletal…
A: Given,I0=10 W/m2E=70 keVx=3cm
Q: The threshold of dark-adapted (scotopic) vision is 2.8 ✕ 10−11 W/m2 at a central wavelength of 500…
A: The number of photons that enter the eye is, n=EEr Write the expression for the energy of a single…
Q: A radio station operates at a frequency of 103.7 MHz with a power output of 200 KW. Determine the…
A: From given frequency of a quanta we can find energy one wave associated with a quanta. Power is rate…
Q: 6. a. X ray are produced in a tube operating at 20.0 kV strikes a target and Compton- scattered…
A: The potential difference of the x-ray tube is given as, V=20 kV, The Compton's scattering angle is…
Q: Things around you are emitting infrared radiation that includes the wavelength 1.21 x 105 m. What is…
A: Given data: Wavelength (λ) = 1.21×10-5 m
Explain single-photon-emission computed tomography(SPECT).
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