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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
An unknown material has a normal melting/freezing point of -26.3° C, and the liquid phase has a specific heat capacity of 160 J/(kg · C°). One-tenth of a kilogram of the solid at -
find the angle between two vectors if thier resultant is equal to either of them
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A stack emitting 85 g/s of NO has an effective stack height of 100 m. The wind speed is 3 m/s at 10 m, and it is a cloudy summer day. Estimate ground level NO concentration:
how can we conclude whether at some time interference will take place or not with the help of the concept of temporal coherence?
A small sports car collides head on with a massive truck. a. Which vehicle will experience the maximum magnitude force: the car, the truck, or neither? Explain. Neither, they
Process to calculate teh number of atoms per unit cell The number of atoms per unit cell is equal to the product of 'the number of atoms per basis' and 'the number of basis per
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