How to use the Bremsstrahlung flux to analyse a medium?

Thread starter mjda
Start date Apr 12, 2019
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Astrophysics Bremsstrahlung Em radiation Flux Medium Plasma physics Radiation

In summary, the Bremsstrahlung flux is a type of electromagnetic radiation emitted when charged particles are decelerated. It is commonly used in medium analysis to obtain information about the properties and composition of the medium. The flux is typically measured using detectors such as Geiger-Muller tubes or solid-state detectors. By analyzing the flux, scientists can gather information about the energy, momentum, and composition of the charged particles and the medium. However, there are limitations to using the Bremsstrahlung flux, such as its ability to only analyze charged particles and potential interference from other sources of radiation. Despite these limitations, the flux has practical applications in non-destructive testing, medical imaging, and nuclear power plants.

Apr 12, 2019

mjda

Homework Statement: Consider an HII region at a distance of 400 pc which is observed to emit thermal Bremsstrahlung across a wide range of radio wavelengths.

Independent analysis of emission lines suggests that the characteristic electron density and temperature of the H II region are 10^9 m^−3 and 10,000 K, respectively.

If the wavelength-integrated Bremsstrahlung flux at Earth is 3.1 x 10^−7 J / m2 / s, how can we estimate the radius of the HII region?

Relevant Equations: Where we can use:

[The Bremsstrahlung energy emitted in 1 s from 1 m^3 of a proton-electron plasma with a particle density of 1 m^−3 and temperature of 10^6 K is 1.4 x 10^−37 J, and 1pc = 3.086 x 10^16 m]

I don't know where to even begin?

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Apr 12, 2019

berkeman

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Please remember that you must show some effort before we can offer tutorial help. Try drawing a sketch to see if that helps. Please post at least your first try at working this problem, so we can see where you are on it. Thanks.

Related to How to use the Bremsstrahlung flux to analyse a medium?

1. What is Bremsstrahlung flux?

Bremsstrahlung flux is a type of electromagnetic radiation emitted when a charged particle is decelerated or deflected by another charged particle, such as an electron being deflected by the nucleus of an atom. It is commonly used in X-ray and gamma-ray spectrometry to analyze the composition of a medium.

2. How is Bremsstrahlung flux used to analyze a medium?

Bremsstrahlung flux can be used to analyze a medium by measuring the intensity and energy distribution of the emitted radiation. The energy distribution can provide information about the atomic structure of the medium, while the intensity can indicate the concentration of elements present.

3. What factors can affect the Bremsstrahlung flux in a medium?

The Bremsstrahlung flux in a medium can be affected by several factors, including the energy and velocity of the incident particles, the atomic number and density of the medium, and the angle of incidence of the particles.

4. How is the Bremsstrahlung flux measured?

The Bremsstrahlung flux can be measured using a variety of techniques, such as semiconductor detectors, scintillation detectors, and gas ionization detectors. These detectors can measure the energy and intensity of the emitted radiation, which can then be used to analyze the medium.

5. What are the applications of using Bremsstrahlung flux to analyze a medium?

Bremsstrahlung flux analysis has many applications, including material analysis in fields such as geology, archaeology, and forensics. It is also used in medical imaging, industrial quality control, and environmental monitoring to identify and quantify the elements present in a sample.