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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
Q. Illustrate what is larger the force the earth exerts on you or the force you exert on the earth? Answer:- A non-scientist's preliminary stab at this If you are talking
Olbers' paradox (H. Olbers; 1826): If the Universe is uniform, infinite & unchanging then the whole sky at night would be bright regarding as bright as the Sun. The further yo
What are simple ways to quantify the dryness of a semi-permeable hard surface?
Q. What are uses of ultra-violet radiations? Uses of ultra-violet radiations: (i) They are utilized to destroy the bacteria and for sterilizing surgical instruments.
newtons 3 law
Does destructive interference violate the principle of conservation of energy? Briefly explain.
Assume a hot system at temperature T placed in an environment at a lower temperature T0. The system emits more radiation than it absorbs and cools down whereas the surrounding abso
Determine the Superposition Principle The Superposition Principle for numerous electric potentials, unlike electric fields and forces, is summed algebraically. Electric potent
what do you mean by nuclear fusion and fusion? explain briefly giving certain examples.
a ball is thrown up and come in the hands of thrower find heigth
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