X-rays and their emission spectrum

In summary, the intensity of x-ray emission spectrum of Molybdenum varies with applied voltage and is characterized by the production of continuous radiation, absence of radiation of shorter wavelengths, and presence of peaks K(alpha) and K(beta). The lower curves show the absence of K peaks. In x-rays, when any line in the K series is emitted, the whole series is emitted. Each series converges to a short wavelength limit. The K-absorption edge of tungsten is 0.0178nm and the average wavelengths of the K series lines are: K(alpha)=0.0210nm and K(beta)=0.0184nm. To excite the L series, the least energy required is determined by the K-abs
  • #1
justinegauci
1
0
About the intensity of x-ray emission spectrum of Molybdenum as a function of wavelength for various applied voltages:

Explain fully:

1) the production of continuous radiation emitted
2) the absence of radiation of wavelength shorter than the minimum wavelength
3) the presence of the peaks K(alpha) and K(beta)
4) the absence of the K peaks in lower curves

5) Explain why in x-rays if any line in the K series is emitted, then the whole series is emitted.
6) Why does each series converge to a short wavelength limit?

7) The K-absorption edge of tungsten is 0.0178nm and the average wavelengths of the K series lines are: K(alpha)=0.0210nm and K(beta)=0.0184nm.
i) What is the least energy in eV required to excite the L series?
ii) What is the wavelength of the L(alpha) line?
 
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  • #2
Hello justinegauci.What have you tried and where are you stuck?
 

1. What are X-rays and how are they produced?

X-rays are a type of electromagnetic radiation that have a higher frequency and shorter wavelength than visible light. They are produced when high-speed electrons collide with a metal target, causing them to lose energy in the form of X-rays.

2. What is the difference between the emission spectrum of X-rays and visible light?

The emission spectrum of X-rays is continuous, meaning it contains a range of wavelengths, while the emission spectrum of visible light is a series of distinct colors. Additionally, X-rays have much higher energy and shorter wavelengths than visible light.

3. How do X-rays interact with matter?

X-rays have the ability to pass through most materials, but they can also be absorbed or scattered depending on the density and composition of the material. This is why X-rays are commonly used in medical imaging to see inside the human body.

4. What are some everyday uses of X-rays?

In addition to medical imaging, X-rays are also used in airport security scanners, industrial inspection, and scientific research. They are also used in radiation therapy to treat cancer.

5. Are X-rays harmful?

X-rays can be harmful if a person is exposed to high levels of radiation for an extended period of time. However, the amount of radiation used in medical imaging is considered safe. It is important to limit exposure to X-rays and wear protective gear when necessary.

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