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Nuclear medicine imagining devices :Imagining ,or producing pictures of the distribution of the radioactivity is the most important aspect of nuclear medicine.
Rectilinear scanner-It use a NaI(Tl) detectors.-Two images are made of the radiation distribution -It use a focused collimators-A few scanners have two detectors focusing each other.
Gamma camera- It produces an image while stationary.- It has a large NaI(Tl) scintillation crystal about 1 cm thick and 30 to 45 cm in diameter.- The scintillation are viewed through a light pipe by an array of 19 or 37 PTMs.- A computer can be used in conjunction with gamma camera to obtain quantitive information.- A parallel hole collimator is usually used with gamma camera
The end of a pipe is inserted into water. A tuning fork is held over the pipe. If the pipe resonates at lengths of 15 cm and 35 cm, what is the frequency of the tuning for
Q. In the given circuit, calculate the current through the circuit and mention its direction. Let the current be I. 7 I + 3 I + 5I + 5 I = 10 + 8 - 2 (i.e) 20 I = 1
Illustrate the characteristics of a sound note. What do you mean by Resonance? Illustrate with an example.
Who was the first person to show that all objects fall toward Earth with constant _________.
A manufacturer of light bulbs advertises that its 55-W bulb, which produces 800.0 lm of light output, gives almost the similar light as a 60.0-W bulb with an energy savings. Th
Universal age paradox Two most straightforward methods of computing the age of the Universe through redshift measurements, and stellar evolution yield incompatible results. Re
An equiconvex lens has the radius of one curved surface is 0.12 m and focal length of 0.10 m. Determine the refractive index of the material of the convex lens.
The magnetic field of Earth resembles the field of a bar magnet. The north pole of a compass needle, used for navigation, generally points toward the geographic north pole.
Grounding a Negatively Charged Electroscope While the negatively charged electroscope is touched and its charge becomes grounded or neutralized this is depicted within the anim
Production of audio and video signals Iconoscope is a type of camera consisting of a cathode ray beam and a photoelectric cell. The picture is scanned with the help of iconosco
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