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Solid state simeconductor
It is main advantage is that it has much better resolution than NaI(Tl)It is main disadvantages are that it is not available in large sizes and it is much more expensive.
The principle of operation :its acts as a solid ionization chamber so it acts as an insulator and dose not allow current to flow until ionization has taken place in its volume. It kept very cold to minimize the current produced by thermal activation of electrons.
Collimator: it is used on the scintillation detector to limit its counting volume. It is a specially designed lead shield with one or more holes in
It has two types:1 – The open flat field collimator: it is useful for detecting gamma rays from a relatively large volume such as the thyroid or kidney.2- The focused collimator : it has a number of trapped holes oriented to point at a small volume 7.5 to 12.5 cm from it , it is often used in nuclear medicine
Describe coefficient of self induction, coefficient of mutual induction. What types of transformer is used in a bed lamp.
what is the physical significance of damping coefficient?
In the arrangement shown in figure, an object can be hung from a string (with linear mass density µ = 0.002 00 kg/m) that passes over a light pulley. The string is connected to a v
Stefan-Boltzmann law (Stefan, L. Boltzmann): The radiated power P (it is rate of emission of electromagnetic energy) of hot body is proportional to the radiating surface area,
A small ball with a mass of 60.0 g is loaded into a spring gun, compressing the spring by 12.0 cm. When the trigger is pressed the ball emerges horizontally from the barrel ata hei
if in an interference pattern,the ratio between maximum and minimum intensities is 36:1,find the ratio between the amplitude and intensities of the two interfering waves.
A car of mass 1600 kilograms (kg) was travelling at 30m/s when the brakes were applied and produced a constant retarding force of 8000 N (Newtons) to the car: Find - a) How far the
Color vision and chromatic aberration: One of the remarkable ability of the eye is its ability to see color. There are three types of cones that respond to light from three
A circuit contains of a 10 volt battery connected in series with a 4 ohm resistor and a 6 ohm resistor. Why is it complete nonsense to say that 4 volts goes through the 4 ohm resis
Question 1 Discuss the physical characteristics of an X-ray beam. Write a note on factors influencing the quality and intensity of the X-ray beam Question 2 Explain the const
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