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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
work done by conservative force on a system is equal to
what, why, use
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Real and Simple or Distinct Poles If all the poles of F1(s) are of first order, Equation may be written in terms of a partial fraction expansion as where p 1 , p 2 ,...
quantization of charge
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Is a godd illuminator is bigger better? This is somehow surprising that manufacturers place huge emphasis in the power consumption, stating with a machine is 50, 100 or 400 Wat
The airplane shown in the figure is to achieve "weightlessness" for a short period of time by flying along a curved path such that it's acceleration components in x direction a x
Two long wires 'P' and 'Q', carrying equivalent currents of 5 Ampere and the distance among the wire is 5 cm. Determine the force applied on each wire if a. Current flowing in
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