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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
illustrate the parts and function of motor
The Monkey and Zookeeper There is an attractive monkey down at the zoo. The monkey spends most of its day execution from a limb of a tree. The zookeeper feeds the monkey throug
The microwave (rotational) spectrum of 12 C 16 O having a series of lines spaced by 115.3 GHz. Suppose that the rotational energy levels of this molecule can be approximated by
a wave of eqn y=0.005sin(8x-3t).find displacement when x=0.3 t=20s?in the answer given y=0.005sin(80*3-0.3*20)= y=0.005sin(-36+12pi).what is this 12pi?
Unpolarized light: In ordinary light (light from sun, bulb etc.) the electric field vectors are given in all directions in a light is known as unpolarized light. The oscillation o
Derive Zero'th Law Statement: "two systems in thermal equilibrium with a third system separately are in thermal equilibrium with each other". Explanation : If A and B
How is absorption occurred in fibre material? Absorption is associated to the fibre material. It is caused by three diverse mechanisms, which are: a. Absorption by atomic de
Explain an inertial frame of reference and derive the Lorentz transformation equations formula. How it can be used in optical gyroscope?
A packed parachute is dropped from rest from an airplane. A daredevil is launched straight down rom the plane 3.00s later. Neglecting air resistance, the daredevil catches up to th
q+q''=0
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