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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
applications of joule''s law?
An object contains n1 protons and n2 electrons.what is net charge on the object?
A tunning fork produces 4 beats per second with another tunning fork of frequency 256 Hz. The first one is now loaded with a little wax and the beat frequency is found to enhance t
What is the raw file size for an image of 80 rows and 100 columns, with pixels on 14 bits and with an extra row for the header? The minimum and maximum values observed in a
What are lens aberrations? Give reasons for them. Illustrate the working of a simple microscope and give a mathematical expression for its magnifying power.
how to solve it
Newtons laws The Motorcyclist As per to Newton's first law an object which is in motion continues in motion along with the similar speed and within the similar direction unless
why the reflective index of cladding is lower then in core of a fiber optic?
A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applied for 1 second, the
if you want to amplify input signal of +-20mV amplitude and a 100 MHz frequency,which parameters of OP-amp play a significant role? what should be the values of the parameters?just
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