Recent content by india

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    What Is the Probability of Coincident Detection Between Two Particle Detectors?

    Yes, Let's say, single radioactive source is emitting both alphas and x-ray photons. now rate of alpha particle being detected in detector is 13 alpha/sec, and rate of x-ray being detected in xray detector is 0.138 photon/sec. Both detector are different. And Let's say count rates have already...
  2. I

    What Is the Probability of Coincident Detection Between Two Particle Detectors?

    Yes, Let's say, single radioactive source is emitting both alphas and x-ray photons. now rate of alpha particle being detected in detector is 13 alpha/sec, and rate of x-ray being detected in xray detector is 0.138 photon/sec. Both detector are different. And Let's say count rates have already...
  3. I

    What Is the Probability of Coincident Detection Between Two Particle Detectors?

    Coincindence Count Rates ! I have two particle detector, 1. one will counts 13 particle/sec 2. second has 0.138 particle/sec (i.e. 1 particle can be detected in 7.2 sec in second det) what will be the probability of both particle being detected ? and in how much time ?
  4. I

    How to Calculate Detection Probability of Alpha Particles from a 241Am Source?

    So there will be the vacuum inbetween source and detector. So there will be very less chance for energy loss of alpha, That can be detected at 35mm distance. Also there is no material in between. Area of detector is 64mm^2, and distance is 35mm. So i think fraction of surface are covers detector...
  5. I

    How to Calculate Detection Probability of Alpha Particles from a 241Am Source?

    So there will be the vacuum inbetween source and detector. So there will be very less chance for energy loss of alpha, That can be detected at 35mm distance. Also there is no material in between. Area of detector is 64mm^2, and distance is 35mm. So i think fraction of surface are covers...
  6. I

    How to Calculate Detection Probability of Alpha Particles from a 241Am Source?

    Probability for detection ! I have to calculate the probability of alpha particle or photon being detected by Si detector from the 241Am source. How to know no of alpha that can be detected from the 241Am source ?? source have acticity of 3.7kBq and distance between source and detector is...
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    What Voltages Should Be Used for Focus and Deflection Plates in an Electron Gun?

    Thanks Dave, Yes I know, I written wrong. I have 14VAC for filament and 20KV supply for the anode. I have already built gun, just amazed to give power supply for focus electrode and deflection plate. So I want to know, what type of power, and how much power I have to give the focus electrode and...
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    What Voltages Should Be Used for Focus and Deflection Plates in an Electron Gun?

    Hi all, I am making electron gun. I have several High voltage power supply to provide enough voltages to Filament, Anode, Grid, Focus and deflection plates. I want to make electron gun of acclerationg potential of 5-8 KeV. I know I have to give negative supply to cathode or filament. and then...
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    Designing Shielding Box for High Voltage Cylinder

    yes, thanks ... bt i think i wl get that for cylindrical capacitor. bt right now i have another design.. bt i wl try for solving it. btw what type of numerical solution that i should use??
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    Designing Shielding Box for High Voltage Cylinder

    Could anyone help me ?
  11. I

    Designing Shielding Box for High Voltage Cylinder

    i have to design one shielding box. in that there is cylinder having high voltage +60kev. and box having metal plate. so i have to calculate the electric field on that cylinder and then decide , what should be the distance in between plate and cylinder. i have attach the geometry on the file...
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