Why kV x-rays in radiological imaging provide better contrast than MV x-rays in portal imaging?
Q: How X-ras work?
A: X-Rays: Electromagnetic radiation is defined as a wave-like form of radiation that contains both…
Q: Suppose an MRI scanner uses 100-MHz radio waves.(a) Calculate the photon energy.(b) How does this…
A: Given data The frequency of the MRI scanner is v = 100 MHz. a) The photon energy is given as, E=hv…
Q: The mass density of Iron is 7.874 g/cm 3 ,a) What is the critical angle of total reflection from the…
A: The final answer is the same as the explanation underneath.Explanation:a. To find the critical angle…
Q: • To scan or not to scan? It has become popular for some people to have yearly whole-body scans (CT…
A: Given that, 1 scan gives a dose of 12mSv applied to the whole body. Chest X-ray: 0.20 mSv to 5 kg of…
Q: In digital radiography what replaces the intraoral film?
A: Digital radiography: The radiography in which X-ray sensitive plates are used to capture the data…
Q: When will 10 mCi of 1311 (T1/2 = 8.05 days) and 4 mCi of ³2P (T1/2 = 14.3 days) have equal…
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Q: Check if the equation is correct: S=ut+1at^2
A:
Q: Please give a brief explanation of how X-rays were discovered and how they are produced
A: Explanation of how X-rays were discovered and how they are produced.
Q: Consider g(t, 0) is the Radon transform of f(x, y). Suppose we only know g(1, 30°) = %3D e-. f(x, y)…
A: Given : g(l, θ) is the Radon Transform of f(x,y) g(l, 30o) = e- | l | f(x,y) is a thin slice object…
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: If a sample emits 2000 counts per second when the detector is 1 meter from the sample, how many…
A: Counting rate is inversely proportional to the square of the distance to the source
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: 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: I want handwritten solution without using AI.
A: Step 1: Convert lattice constant from nm to cm: 0.543nm = 0.543x10-7cm. Step 2: Calculate the…
Q: In preparation for an MRI scan, why are patients advised to remove eyeglasses, watches, jewelry, and…
A: MRI means magnetic resonance imaging.
Q: Explain the principles behind X-ray radiotherapy treatment of malignant tumours. Describe how…
A: X-ray radiotherapy is a type of cancer treatment that uses high-energy radiation to kill cancer…
Q: The HVL of a Co-60 is approximately 9mm of lead. What is the approximate x=Tem= transmission factor…
A:
Q: The typical free path of alpha-particle from ionizing radiation in human body is
A: Alpha particles are positively charged and made up of two protons and two neutrons from the atom’s…
Q: Calculate the CT pitch factor for a scan length 16 cm, 20 tomographic sections an the nominal slice…
A: CT Pitch factor? Scan length=16cm= 160mm Tomographic sections =20 Slice thickness = 5mm 20×5 =…
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- In proton beam therapy, a beam of high-energy protons is used to deliver radiation to a tumor, killing its cancerous cells. In one session, the radiologist calls for a dose of 4.9 x 108 protons to be delivered at a beam current of 120 nA. How long should the beam be turned on to deliver this dose?8. An x-ray beam is composed of equal intensities of 30 pm x-rays and 50 pm x- rays. The xray beam is now directed upon a material whose linear absorption coefficient for 30 pm xrays and 50-pm x-rays are 0.30 mm-1 and 0.72 mm-1 respectively. How thick is thematerial if the exiting x-ray beam is composed of twice as many 30 pm x-rays as 50-pm xrays?Tungsten has a linear attenuation coefficient of 30.5/cm for gamma rays with 150 keV of energy. If an unshielded Tc-99m syringe has a radiation exposure rate (I(0)) of 34 mR/hr, what will be the exposure rate if a 0.25-cm tungsten shield is placed around it? Using the calculation above, how much (what percent) is transmitted through the shield? What percent is attenuated?