Questions tagged [x-rays]
Use this tag for question related to X-rays which are a form of high energy electromagnetic radiation having wavelength ranging from 0.1 to 10 nanometres. Also referred to as Röntgen radiation after the scientist who discovered it. X-rays have a range of application including medical CT, airport security, astronomy, crystallography, etc. Different applications use different parts of the X-ray spectrum.
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Is X-Ray-Emission-Containing Phosphorescence possible or is it limited to Immediate-Emission XRF?
This was a random thought that I wanted to follow up on. I know some materials can take in and kick out X-Rays in XRF (Though most x-ray scintillators tend to emit mostly visible light, not x-rays). ...
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At which wavelengths do photons behave like X-ray?
Hard X-rays of wavelengths of about an angstrom are very different than regular lights in a way that they can’t be reflected or refracted, which means their refractive index is always close to 1 ...
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Distribution of scattered photons in cone-beam computed tomography (CBCT)
I am using MCGPU to simulate photon transport in cone-beam computed tomography (CBCT). I ran an experiment, where a water cylinder containing spherical objects was irradiated. The simulation software ...
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How is the number of charge carriers set free in an x-ray detector proportional to the energy of the incoming photon?
I'm a chemistry undergrad student and I've been doing some research into the ways light is generated and detected at different parts of the spectrum (for the purposes of better understanding practical ...
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Max. energy of X-rays produced in an X-ray tube if 99% of the electrons' KE is thermally dissipated
(I think this question may be what the 'no homework merchant' meant to ask here.)
I was working through a question that asked me to find the maximum energy produced from an X-ray tube with ...
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Would we be able to see the superposition of two X-rays where the frequency of the modulation matches visible light?
Suppose I had the superposition of two electromagnetic waves whose angular frequency was in the X-ray region. Together they form a composite made of a carrier wave and a modulation wave where the ...
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Can X-rays compress plasma for fusion?
I know in ICF fusion, generally lasers are used to generate X-rays inside a holhraum to compress a duetirium tritium fuel pellet until it generates fusion reactions. I was wondering if the same ...
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Going from a photon flux to a photon flux after a slit (partial photon flux)
Thanks to the help of someone here and others a few weeks ago (who referred me to the Jackson), I have managed to express the flux of a bending magnet like so:
$\frac{d_N}{\frac{d\omega}{\omega}} = \...
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Why escape peak positions are calculated using emission energy and not absorbing energy?
For a X-ray monocromatic source, escape peaks energy positions are described by the difference between the incident energy and the fluorescence ($K_{\alpha}$ for example), like $E_{Escape Peak} = E_0 -...
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Expressing synchrotron radiation, bending magnet flux
In chapter 14 of Jackson the number of photons per unit frequency interval is given by:
How can I go from $\frac{photons}{d \omega}$ to a flux expressed in photons per second per 0.1% bandwith $\frac{...
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What physical processes are involved in causing the Voigt profile in X-ray diffraction
I understand qualitatively that a Voigt profile combines both Gaussian and Lorentzian profiles which is a suitable method for plotting an X-ray diffraction pattern.
Which physical processes lead to ...
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What's the difference between the different kinds of EM waves?
I am an A-level student.
We have traditionally been taught that different types of EM waves exist only between certain ranges of wavelengths and frequencies.
However, I learned that electromagnetic ...
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Why does a CT scan with contrast make you feel warm?
I recently had a CT scan with IV contrast liquid. I was warned it might make me feel warm and that this is normal.
I had an amazing sensation of heat moving down my body.
All my searches tell me that ...
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Why aren't we seeing $\Delta n = 0$ transitions in the spectrum of an X-ray-tube?
Well basically title. The characteristic / discrete radiation from an x-ray tube comes from electrons falling down into a vacancy which was created by an incoming electron from the acceleration ...
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Small-Angle X-Ray Scattering of Bulk Polymers
Does anyone have any recommendations on how to get useful information from SAXS of polymers when the system is not dilute?
This is the type of data we're working with:
My understanding is that since ...
