Em spectrum

Beond visible light

BY ASHLEY KORRAPATI

01

The EM Spectrum

Gamma rays

G X U V I M R

Gamma rays and what they are used for:Gamma rays are used in medical imaging and are also used to treat cancer. (by raidotherapy) Gamma ray also come in handy while sterilizing things such as medical equiptment and food! Gamma rays have a unique ability to kill microoganisms with out causing other damage. Thats why they are often used in hospitals. But what is a gamma ray? :A gamma ray is a electromagnetic radiation-waves that carry energy just like visible light! A single gamma ray photon i more energetic than a milion visibe photons combind.So gamma rays are a strong source of ionizing radiation powerfull enough go brake apart atomic bonds! Damage:Gamma rays an cause Radiation Damage! The ionizing radiations gamma ray have an cause DNA distruction that cause cancer. Well is'nt that ironic?Fortunatley the earth Ozone layer filters out theas harmfull rays befort they can harm us. What causes gamma rays and how is it deteted ?: Gamma rays are caused by radioactive decay. EG nutron star exploding or supernova . Gamma-ray wavelengths are so short that they can pass through the space within the atoms of a detector. Gamma-ray detectors typically contain densely packed crystal blocks. As gamma rays pass through, they collide with electrons in the crystal. This process is called Compton scattering, wherein a gamma ray strikes an electron and loses energy, similar to what happens when a cue ball strikes an eight ball. These collisions create charged particles that can be detected by the sensor. Properties of Gamma rays: Gamma rays have short wave lenths and have no mass and no charge.GRB or gamma ray are know to stay focosedmuch longer compared to other cosmi explosions.

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X-rays

G X U V I M R

X- rays and what they are used for:X-rays are used to help us view the internal structor of objects, Such as are own bodys! X rays asr also used crystallography, branch of science that deals with discerning the arrangement and bonding of atoms in crystalline solids and with the geometric structure of crystal lattices. X ray are also udes in Astrophysics is a branch of space science that applies the laws of physics and chemistry to seek to understand the universe and our place in it. But what is a x- ray? :A -rays are a form of electromagnetic radiation, similar to visible light. Unlike light, however, x-rays have higher energy and can pass through most objects, including the body. X-rays have wavelengths between about 10 nanometers! Damage:X -rays an cause Radiation Damage! X-ray ionize human tissue much like gamma rays. getting a hand or foot X-rays increase the potential of cancer by 6 percent! Radiation at a high level is carcinogenic. What causes X -rays and how is it deteted ?: X-rays and gamma rays can come from natural sources, such as radon gas, radioactive elements in the earth, and cosmic rays that hit the earth from outer space. But this type of radiation can also be man-made.X-ray detector uses an electric current to measure incoming X-rays. In this type of detector, an X-ray interacts with a material freeing an electron. That electron can rattle around in the detector and give energy to other electrons. Properties of X-rays: X-rays have a shorter wavelength of the electromagnetic spectrum.they requierRequires high voltage to produce X-Rays.

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Ultra violet

G X U V I M R

Ultra violet and what they are used for:UV radiation is widely used in industrial processes and in medical and dental practices for a variety of purposes, such as killing bacteria, creating fluorescent effects, curing inks and resins, phototherapy and suntanning. Different UV wavelengths and intensities are used for different purposes.But what is a gamma ray? :Ultraviolet radiation is the portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of the visible light range to the X-ray region Damage: Sunburn is a sign of short-term overexposure, while premature aging and skin cancer are side effects of prolonged UV exposure. UV exposure increases the risk of potentially blinding eye diseases, if eye protection is not used. Overexposure to UV radiation can lead to serious health issues, including cancer. What causes uv rays and how is it deteted ?:Ultraviolet (UV) radiation is a form of non-ionizing radiation that is emitted by the sun and artificial sources, such as tanning beds. While it has some benefits for people, including the creation of Vitamin D, it also can cause health risks. Ultraviolet light causes our skin to freckle, tan, or sunburn. A safer way to detect UV light is with a UV detector they will use beads with a special pigment that changes color when exposed to UV light. These beads are called UV detectors. Properties of. UV rays: The wavelength of ultraviolet waves is - 1 × 10 - 8 to UV rays could be blocked by thick clouds *

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Visible light

G X U V I M R

Gamma rays and what they are used for:Gamma rays are used in medical imaging and are also used to treat cancer. (by raidotherapy) Gamma ray also come in handy while sterilizing things such as medical equiptment and food! Gamma rays have a unique ability to kill microoganisms with out causing other damage. Thats why they are often used in hospitals. But what is a gamma ray? :A gamma ray is a electromagnetic radiation-waves that carry energy just like visible light! A single gamma ray photon i more energetic than a milion visibe photons combind.So gamma rays are a strong source of ionizing radiation powerfull enough go brake apart atomic bonds! Damage:Gamma rays an cause Radiation Damage! The ionizing radiations gamma ray have an cause DNA distruction that cause cancer. Well is'nt that ironic?Fortunatley the earth Ozone layer filters out theas harmfull rays befort they can harm us. What causes gamma rays and how is it deteted ?: Gamma rays are caused by radioactive decay. EG nutron star exploding or supernova . Gamma-ray wavelengths are so short that they can pass through the space within the atoms of a detector. Gamma-ray detectors typically contain densely packed crystal blocks. As gamma rays pass through, they collide with electrons in the crystal. This process is called Compton scattering, wherein a gamma ray strikes an electron and loses energy, similar to what happens when a cue ball strikes an eight ball. These collisions create charged particles that can be detected by the sensor. Properties of Gamma rays: Gamma rays have short wave lenths and have no mass and no charge.GRB or gamma ray are know to stay focosedmuch longer compared to other cosmi explosions.

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Infrared

G X U V I M R

Ifrared: infrared lies just beyond red in the visible light sector on the EM spectrum. Infrared radiation has a wavelength from about 800nm to 1mm and emitted particularly by heated objects. But what is ifrared ? : Ifrared light is a part of the electromagnetic spectrum. People encounter infrared daily although human eyes can't see it it can be detected as heat. Tv remotes use infrared to help you change between Damage: Medical studies have proven infrared radiation exposure Ann lead to corneal ulcers, retina burns and cataracts. Ifrared can also lead to theremal burns and cause skin to age prematurely. What causes Ifrared rays and how is it deteted ?: Since the primary source of infrared radiation is heat or thermal radiation, any object which has a temperature radiates in the infrared. Even objects that we think of as being very cold, such as an ice cube, emit infrared. We use instruments that can sense infrared energ like night vision goggles or infrared camas. Properties of Gamma rays: Wavelength range from 710 nm to 1 mm. Frequency range from 430 THz to 300 GHz

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Micro waves

G X U V I M R

Micro Waves and what they are used for:Microwaves are a form of "electromagnetic" radiation; that is, they are waves of electrical and magnetic energy moving together through space. Electromagnetic radiation spans a broad spectrum from very long radio waves to very short gamma rays.,But what is a micro wave? :A Microwaves are defined as electromagnetic radiations with a frequency ranging between 300 MHz to 300 GHz. In contrast, the wavelength ranges from 1 mm to around 30 cm. Microwave radiation is commonly referred to as microwaves. They fall between infrared radiation and radio waves in the electromagnetic spectrum. A microwave is an electromagnetic wave with a relatively long wavelength and low frequency. Damage:Microwave rays an cause Radiation Damage! Microwaves are non-ionizing radiation, so they do not have the same risks as x-rays or other types of ionizing radiation. But, microwave radiation can heat body tissues the same way it heats food. Exposure to high levels of microwaves can cause skin burns or cataracts. What causes microwaves and how is it deteted ?: Source of microwave is magnetron, source of IR is vibration of atoms and molecules, source of Gamma rays is radioactive decay, source of X-rays is inner shell electrons. Properties of Gamma rays: Gamma rays have short wave lenths and have no mass and no charge.GRB or gamma ray are know to stay focosedmuch longer compared to other cosmi explosions.

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Radio waves

G X U V I M R

Gamma rays and what they are used for:Gamma rays are used in medical imaging and are also used to treat cancer. (by raidotherapy) Gamma ray also come in handy while sterilizing things such as medical equiptment and food! Gamma rays have a unique ability to kill microoganisms with out causing other damage. Thats why they are often used in hospitals. But what is a gamma ray? :A gamma ray is a electromagnetic radiation-waves that carry energy just like visible light! A single gamma ray photon i more energetic than a milion visibe photons combind.So gamma rays are a strong source of ionizing radiation powerfull enough go brake apart atomic bonds! Damage:Gamma rays an cause Radiation Damage! The ionizing radiations gamma ray have an cause DNA distruction that cause cancer. Well is'nt that ironic?Fortunatley the earth Ozone layer filters out theas harmfull rays befort they can harm us. What causes gamma rays and how is it deteted ?: Gamma rays are caused by radioactive decay. EG nutron star exploding or supernova . Gamma-ray wavelengths are so short that they can pass through the space within the atoms of a detector. Gamma-ray detectors typically contain densely packed crystal blocks. As gamma rays pass through, they collide with electrons in the crystal. This process is called Compton scattering, wherein a gamma ray strikes an electron and loses energy, similar to what happens when a cue ball strikes an eight ball. These collisions create charged particles that can be detected by the sensor. Properties of Gamma rays: Gamma rays have short wave lenths and have no mass and no charge.GRB or gamma ray are know to stay focosedmuch longer compared to other cosmi explosions.

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