X-ray tube flux and my experimental test setup

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SUMMARY

The discussion centers on calculating the total flux emitted by an Amptek mini X-ray tube for efficiency testing of a detector. The tube emits 106 counts per second/mm² at a distance of 30 cm with a voltage of 50 keV and current of 1 µA. Participants clarify that the provided flux value is integrated over all energies, making it impossible to derive the flux at a specific energy from this data alone. They suggest using online calculators from Cornell University to assist in further calculations related to X-ray flux.

PREREQUISITES
  • Understanding of X-ray tube specifications and operation
  • Familiarity with detector efficiency calculations
  • Knowledge of radiation flux measurement techniques
  • Basic proficiency in using online scientific calculators
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  • Explore the use of the Cornell IC Flux Calculator for X-ray flux calculations
  • Research the relationship between X-ray tube current and intensity
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  • Learn about detector sensitivity and its impact on efficiency measurements
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Researchers, physicists, and engineers working with X-ray technology, particularly those involved in detector efficiency testing and radiation measurement.

Manuel
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Hi everyone!

I'm starting to work with a mini X-ray tube provided by Amptek. I want to use it to calculate the efficiency of a detector I'm going to use latter, so knowing the total flux the tube emmits and measuring the flux the detector receives, that should be enough (both data normalized to the detector sensitive area, of course).In the datasheet specifications (http://amptek.com/products/mini-x-ray-tube), they give me the following data about the flux: Ag: 106 counts per second/mm2 on the axis at a distance of 30 cm (50 keV/1 µA). How can I know, from this value, know the total flux at any energy?

I hope I have expressed myself, my english shoulb have been better. And I'm waiting for your responses, as well.

Thank you!

Manu.
 
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Manuel said:
How can I know, from this value, know the total flux at any energy?
Energy of what? Of the x-rays? The numbers are integrated over all energies. You cannot get the flux at a specific energy based on that number.

It is probably a reasonable assumption that the intensity is linear with the current in the x-ray tube. The dependence on the voltage in it will be more complex.
 
Try This one
http://www.chess.cornell.edu/calculator/index.htm
http://www.chess.cornell.edu/calculator/ICFluxCalculator_new.html
http://www.chess.cornell.edu/calculator/DiodeFluxCalculator.html
 

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