JEE Exam » JEE Study Material » Physics » X-Ray Waves

X-Ray Waves

X-ray waves are electromagnetic radiation that has many applications, from medical imaging to cancer treatment to space exploration. Learn more about them here.

When it comes to electromagnetic radiation, X-rays are most famous for their capacity to look through a person’s skin and capture photos of the bones underneath it. More powerful X-rays and ever more diverse applications of these light waves have been made possible by advancements in technology. These light waves may now be utilised for everything from inspecting tiny biological cells and cement structural components to killing cancer cells.

A few key points:

  • Soft X-rays and hard X-rays are the types of X-ray waves. 
  • To put it in another way, as they are in the electromagnetic (EM) spectrum between ultraviolet (UV) light and gamma-rays, soft X-rays have comparatively small wavelengths of roughly 10 nanometers. 
  • 100 picometers is the range of hard X-rays’ wavelengths (a picometer is one-trillionth of a metre). Gamma rays are in the same part of the electromagnetic spectrum as these waves. 
  • One of four nuclear reactions generates gamma rays, while the others, X-rays and gamma rays, both come from the acceleration of electrons.

Sources of the X-ray waves and their impacts: 

  • On Earth, X-rays waves can be generated by slamming a high-energy electron beam against an atom such as gallium or copper. The electrons in the inner shell, known as the s-shell, are blasted out of their orbit when the beam impacts the atom. 
  • In order for the atom to regain its equilibrium and “relax” or return to its original state, an electron in the so-called 1p shell must step in to fill the void. Is this what you came up with? Release of an X-ray.
  • As a result, fluorescence or X-ray light can be emitted in all directions. Despite their lack of concentration, they aren’t directional. A high-energy, brilliant source of X-rays isn’t easy to make.
  • There’s a particle accelerator known as a synchrotron that uses a closed circular path to accelerate charged particles like electrons at high speeds. Increasing the speed of a charged particle emits light, according to elementary physics. Electrons (or other charged particles) and magnetic fields are both important factors in determining what kind of light is emitted.
  • Massive amounts of X-ray energy are emitted when synchrotron electrons are accelerated to speeds approaching those of light. They are an extremely concentrated beam of X-ray light, not just any old type.
  • In addition to being polarised, synchrotron radiation exhibits a unique property known as a linear or circular oscillation of the electric and magnetic fields of the photons. Because electrons are relativistic [or travelling at near-light-speed], light emitted from them is directed forward. As a result, not only do you obtain the proper colour of light X-rays, but they’re also selectively emitted in the forward direction since you have a lot of electrons stored.

Astronomy using X-ray waves:

  • Professor of astronomy at Missouri State University, Robert Patterson, states that compact binary systems containing black holes or neutron stars produce X-rays. 
  • A disk of highly hot X-ray-emitting plasma can emerge as the more massive and compact stellar remnant strips material from its companion star as it spirals inward. 
  • Another possibility is that the X-ray waves emission from supermassive black holes at the cores of spiral galaxies is caused by the absorption of nearby stars and gas clouds.
  • To focus these high-energy photons(light) that would otherwise flow through regular telescope mirrors, X-ray telescopes use low-angle reflections. 
  • The Earth’s atmosphere shields most X-rays; thus, high-altitude balloons or orbiting telescopes are used to make observations.

An X-ray wave treatment:

  • By disrupting cancer cells’ DNA, high-energy radiation kills them. The National Cancer Institute suggests that treatment be meticulously designed to prevent adverse effects because it can destroy normal cells as well.
  • So called “ionising” radiation or X-rays that zap a specific area with enough intensity to steal electrons from atoms and molecules, alter their properties, according to the US Environmental Protection Agency (EPA). 
  • In high enough doses, this can cause cell damage or even cell death. Cancer can be caused by cell damage, but it can also be combated by causing cell damage. Cancerous tumours can be destroyed by beaming X-rays at them. 

X-ray imaging:

  • X-rays are utilised in a variety of non-destructive evaluation and testing applications, particularly in the detection of structural faults or fissures. 
  • Based on the information provided by the NDT Centre, “radiation is focused on a film or other detector after passing through a portion of the body”. 
  • These interior features can be clearly seen in the resulting shadow graph and whether or not the part is in good condition. Similar to X-ray imaging in doctors’ and dentist’s offices, this method is used to create images of bones and teeth. Stunning Fish X-rays may be seen in these images.
  • Transportation security examinations of goods, luggage and passengers also necessitate the use of X-rays. The contents of packages and other goods carried by passengers may now be seen in real-time thanks to the development of electronic imaging detectors.
  • Imaging bones was the initial purpose of X-rays because the film available at the time was easily identifiable from soft tissues. It’s now possible to picture tissues with considerably lower exposure levels, thanks to advances in focusing systems and detection methods like better photographic films and sensors in electronic imaging devices.
  • The 3D model of a region of interest can also be created using computed tomography (CT).
  • According to the Helmholtz Centre for Materials and Energy, synchrotron tomography, like computed tomography (CT), can produce three-dimensional scans of internal structures.

Conclusion:

Here we have learned about the X-ray waves, their uses and their different impacts. Aside from helping make medical diagnosis possible, X-rays are also used for treatment, to monitor the progress of a condition or damage and to evaluate the results of treatment. Because x-rays have far higher energy and shorter wavelength than ultraviolet light, scientists usually speak of x-rays in terms of energy rather than wavelength. In many cases, the diameter of an x-ray is less than the diameter of an atom due to the x-rays’ extremely low wavelengths (between 0.03 and 3 nanometers).