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KNOWING HOW TO UNDERSTAND THE PARTICULAR ELECTROMAGNETIC SPECTRUM

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CLIFFORD DAHL

Jan 24, 2023 • 5 min read

The electromagnetic spectrum defines the range of electromagnetic waves, ranging
from visible light to gamma rays. It is a crucial component of science, and
understanding this area of the universe is important. In this article , I will
go over a few of the key aspects of this spectrum and how they function.
Infrared

Infrared is the radiation spectrum electromagnetic that goes past the red
portion of the visible spectrum of light. The infrared band is used to assess
the physical properties that objects exhibit. It is also used in night equipment
for night vision.

In general, infrared is classified into near infrared and infrared. Near
infrared refers to the wavelength that contains the lowest frequencies. The
wavelengths fall within the range of 1 to 5 microns. There are also long and
intermediate infrared bands. Each is characterized by the unique wavelengths.




The most famous use of infrared is in military night vision goggles. These
glasses convert infrared light into visible wavelengths for night-time viewing.
However, infrared light can also used for wireless and wired communication.

There isn't any evidence to suggest a connection between infrared radiation and
skin cancer. However there is a link between infrared and skin cancer.
International Commission on Non-Ionizing Radiation Protection (ICNIRP) has
provided guidelines regarding the limit of exposure to incoherent visible and
infrared radiation.
Visible light

Visible light is a part in the spectrum known as electromagnetic. The Sun is the
main lighting source. Other sources of visible light include the moon as well as
the stars. It is essential to realize that we are unable to see ultraviolet and
infrared wavelengths. However, we are able to detect the blue and red light.
These colours are blended together to create what is known as white light.

There are other obscure components of the electromagnetic spectrum, like
infrared and radio waves. Some of these are used for television, radio as well
as mobile communication. The best method to utilize these is to create the right
type of filter. By doing so, we can reduce the harmful consequences of these
elements to our body. Additionally, we can build an environment in which we can
safely look at these components without the use of our eyes.

While the shortest and longest wavelengths of the visible light may be the most
visible however, the most efficient and aesthetically pleasing waves can be
found in the infrared shortwave (SWIR) as well as microwave frequency.
UV

Ultraviolet (UV) radiation is a part in the spectrum known as electromagnetic.
It can be used for various purposes. But it is also harmful. UVB and UVC
radiations are harmful for human eyes, and can cause skin disease.




The energy generated by this type of source can be absorbed by molecules and
trigger chemical reactions. The absorbing molecule can then emit visible light
or emit fluorescence.

The ultraviolet spectrum is split into three major categories, which are the
extreme, the near, as well as the middle. The most common sources of ultraviolet
are lasers, arc lamps and light-emitting diodes.

While their wavelengths for UV radiations are less that those of X-rays they
have more energy. This can be useful in breaking the bonds between chemical
compounds. These waves are also known in the form of radiation that is
nonionizing.

In biochemistry the ultraviolet spectrum is often utilized to measure the
absorption of a particular substance. There are numerous types of substances
that have significant bands of absorption that are visible in UV.

Ultraviolet light is a member of the electromagnetic spectrum, and is produced
through the sun. Its range is between 10 and 400 nanometers. The frequencies
range from 800 THz to 30 PHz. However, most people are unable to be able to see
it.
X-rays

X-rays are electromagnetic radiation with high energy. Unlike gamma rays and
ultraviolet light, Xrays have wavelengths less than visible light and they can
penetrate relatively thin objects. They are employed in a range types of
applications in medicine, like imaging bone and tissue. There are a variety of
X-rays available.

Hard X-rays are produced by the collision of an electron with an atom. This
results in a vacancy inside the electron shell of an atom. Another electron
could fill in the gap. Or, the electron that is incoming could kick out an atom.
If this occurs, a portion of the energy of this photon gets transferred over to
the electron scattering.

The X-ray spectrum is not to confuse with X-band which is a low-energy spectrum
that is part of the electromagnetic spectrum. While both bands overlap by a few
hundred nanometers, they don't have the same characteristics.

Because X-rays are penetrating and therefore, can be utilized in a variety of
applications. For instance, X-rays are employed in security screening procedures
to find cracks in luggage. They are also employed in radiotherapy to treat
cancer patients. X-rays are also used to determine the structural components of
materials such as cement.
Gamma rays

Gamma Rays are very high-energy forms of electromagnetic radiation. In
actuality, all high energy photons are Rays. These photons are created through
nuclear decay and high-energy physics experiments. They are the most energetic
photons that are found in the spectrum known as electromagnetic.

Due to their high energy, gamma rays can be able to penetrate far into
materials. The possibility exists for gamma ray to penetrate as much as a few
feet of lead.

Many high-energy physics experiments create gamma rays. For  which part of the
electromagnetic spectrum is nearest to x-rays  from a relativistic source
directed by the magnetic field of the hypernova is visible at the distance of 10
, billion light years.

Some gamma rays are emitted by the nucleus in some radionuclides when they go
through the process of radioactive decay. Other sources of gamma rays include
atomic transformations as well as annihilation and sub-atomic particle
interactions.

The majority of gamma radiation in astronomy come from different mechanisms.
Gamma rays from supernovae as well as nuclear fallouts are some of the most
energetic forms in electromagnetic radiation. This makes them a great source to
explore the universe.

Certain gamma radiations could cause damage to cells in the body. However, gamma
rays aren't as powerful as beta and alpha rays, and therefore tend to be less
likely to trigger cancer. Nevertheless, gamma rays can alter the DNA structure
and may cause burns. Even the smallest amounts of gamma rays can produce
ionization in the body.




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