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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
A body which gets its real configuration immediately and completely after the removal of deforming force from it, is called as perfectly elastic body. Phosphor bronze and quartz ar
Describe how tunneling takes place When tunnel diode is forward biased, its initial behaviour is similar to that when it's reverse biased. Now, some of the fille
a=The set of whole numbers less than 4
As we know photon's spin is one, how lots CPH (that have spin) is able keep the spin of photon? Answer; the photon spin like electron spin comes up of its properties and indepe
In the following experiment, a constant-pressure calorimeter containing 100 ml of H 2 O is used. The initial temperature of the calorimeter is 24.6 o C. If 18.6 g of CaCl 2 is a
Q. Give the drawbacks of Sommerfeld’s atom model? Drawbacks of Sommerfeld's atom model: (i) It couldn't explain the distribution and arrangement of electrons in atoms.
what is dead time of GM tube?
Biasing Network and Resistor RG Biasing Network (Rs and Cs): JFET is self-biased by using the biasing network R s -C s . Desired bias voltage is obtained when d.c.
Verify Biot-Savart law. Use it to derive an expression for the magnetic field at the centre of a circular loop of radius R carrying a steady current I. Sketch the magnetic field li
to derive expreation for magnitude & direction for the resultant which two are acting at a point
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