How many x-ray photons per second are created by an x-ray tube that produces a flux of x rays having a power of 1.00 W

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How many x-ray photons per second are created by an x-ray tube that produces a flux of x rays having a power of 1.00 W

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Kiệt Gia 2 months 2021-07-28T00:59:28+00:00 1 Answers 5 views 0

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    2021-07-28T01:00:43+00:00

    Complete question:

    How many x-ray photons per second are created by an x-ray tube that produces a flux of x rays having a power of 1.00 W. Assume the average energy per photon in 78.0 keV.

    Answer:

    The number of x-ray photons per second created by the x-ray tube is 8.01 x 10¹³ photons/sec

    Explanation:

    Given;

    power of the flux produced, P = 1 W = 1 J/s

    energy per photon, E = 78 keV

    Convert the energy per photon to J

    E = 78 x 10³ x 1.6 x 10⁻¹⁹ = 1.248 x 10⁻¹⁴ J / photon

    let the number of photons = n

    n(1.248 x 10⁻¹⁴ J / photon) = 1 J/s

    n = \frac{1 \ J/s}{1.248 \times 10^{-14}\  J/photon } = 8.01 \times 10^{13} \ photons/s

    Therefore, the number of x-ray photons per second created by the x-ray tube is 8.01 x 10¹³ photons/sec

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