Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Sodium iodide crystal (NaI)
It scintillate with good efficiency when gamma ray is absorbed, these crystals where attached directly to the PTM to detect a weak flashes of light .They where improved by adding a trace amounts of thallium(Tl)and often referred as NaI(Tl) detector. It is the most widely used detector in medicine .A nuclear medicine scintillation detector system
1-Scince the NaI(Tl)detector is very sensitive ,it has to be well shielded from background radiation .2- five or more cm of lead surrounding the NaI(Tl)crystal except at the collimator .3-The electron emitted at the photocathode of PTM produce an electrical pulse at the output .4-this pulse is electronically amplified at the amplifier. 5-The pulse can be directly counted by the scalar.6-The pulse pass to the single channel pulse height analyzer(PHA) to determine the energy of the gamma raysIt contain an upper discriminator (it rejects the pulses larger than a chosen size)
lower discriminator ( reject the pulses smaller than a chosen size)
window(it is the energy difference between the upper and lower limits )
Multi Chanel analyzer (MCA): it determine the pulse height distribution of all the pulses from the detector ,so it sorts the pulses according to the size.
faraday law of induction(differential and integral form)
What is whomehole and how it
Pressurized Water Nuclear Reactor There are two categories of nuclear reactors. The Pressurized Water Reactor (PWR) and the Boiling water reactor (BWR). Pressurized Water React
A CAR MOVING AT 25m/s ALONG A STRAIGHT LEVEL ROAD EXPERIENCE A RESISTANCE WHICH PRODUCES A RETARDATION OF 0.0001 V^3,WHERE V IS THE VELOCITY IN m/s.FIND THE DISTANCE TRAVELLED AND
For the hydrogen atom, which series describes electron transitions to the N=1 orbit, the lowest energy electron orbit? Is it the: a) Lyman series b) Balmer series
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Passive network:- It can be described as a network, which contains no source of e.m.f. in it.
What is an effect wheel? A disc of polycarbonate or metal revolving among the lamp and the common end along with holes, slits, patterns or colors.
what is construction,,, principle...and working of AC generator
It is described as the nature of charge potential of charge potential is of two types: (i) Positive potential: with respect to positive charge. (ii)Negative potential: with r
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd