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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
The lead alloy: Most of the soldering in the electronic industry is carried out using tin lead alloy. Pure lead metals at 327 0 C, whereas tin melts at 232 0 C and the mixture of
Q. Explain why does heated air expand? Answer:- Temperature is habitually defined as the average thermal energy of the substance at hand. Therefore the hotter a substance
A battery of emf 2v and internal resistance 0.1 ohm is being charged with a current of 5A. In what direction will the current will flow inside the battery? Ans) In charging cond
terrestrial telescope
The relative permeability of a paramagnetic substance is (A) Unity. (B) Slightly more than unity. (C) Zero. (D) less than unity. Ans: The relativ
Electric Field of an Oscillating Charge An electric charge is executing simple harmonic motion, and the animation displays the electric field lines around it.
Coupling Capacitor (Cc) It's an electrolytic capacitor used to couple one stage of amplification to the next stage or load. It allows only amplified ac signal to pas
What is Parallel-Plate Capacitor Parallel-Plate Capacitor: Device used to keep electrical potential energy and charge. It having of two conducting sheets with equal and oppos
A boy is standing on an elevator which is traveling downward with a constant velocity of 30 meters per second. The boy throws a ball vertically upward with a velocity of 10 meters
What is the cause of Brownian motion? Molecules in a gas move constantly, freely, randomly, in all directions and at high speeds. They are able to do so because the intermolecu
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