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There are different ways to measure UV radiation. The mosty common one is by using an index number, which gives the approxiate danger level for humans. This index number is a result from taking different wavelengths into account, shorter wavelengths being more dangerous to cell structure than longer ones.
A better way however is to give the mW/(nm m2) (milliwatt per square meter per nanometer of wavelength).
For the exact calculations and more information, see:
http://www.epa.gov/sunwise/uvicalc.html
http://en.wikipedia.org/wiki/Ultraviolet_index#Definition
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoThe oldest method is the use of Ion chamber. Ion chamber construction is based on two separated metal layers connected to the high voltage. If the X-ray beam is passing through them the current starts to flow and it's proportional to the amount of radiation.
There are also semiconductor detectors and they are based on some materials that change their resistance when irradiated.
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Which rays of the sun can in high quantities damage the skin?
UV RAYS!!! The sun is the major natural source of UV Rays. UV Rays are invisable. They are still a form of light rays. UV stands for Ultra Violiet Rays. These (UV) rays cause sunburn and damage the eyes. Overexposure of UV Rays can cause serious skin cancer. UV Rays, however, can have useful effects, too. They can destroy harmful organisms. UV RAYS!!! The sun is the major natural source of UV Rays. UV Rays are invisable. They are still a form of light rays. UV stands for Ultra Violiet Rays. These (UV) rays cause sunburn and damage the eyes. Overexposure of UV Rays can cause serious skin cancer. UV Rays, however, can have useful effects, too. They can destroy harmful organisms.Utraviolet rays
What is UV energy?
UV energy is in UV rays. These are high energy rays.
Are UV light and UV rays the same thing?
Yes, UV light and UV rays are the same thing, light emit "rays."
When the sun reflects UV rays?
The sun does not reflect the UV rays that are fatal. It creates the UV rays not reflect them.
What are the three types of UV rays and their effects?
The UV rays are of three types. they are UV-A, UV-B, UV-C.
What type of rain are filtered by the ozone layer?
The rays filtered by the ozone are UV rays. The UV rays are extremely dangerous radiations. These radiations can cause skin cancer to living organisms.Ultraviolet(UV) rays
What affects uv rays?
Ozone affects UV rays. These are harmful rays of the sun.
What does uv rays mean?
UV rays are harmful rays of the sun. They are absorbed by the ozone layer.
Why do cientists fear uv rays?
Scientists fear UV rays. It is because they are fatal rays of the sun.
How uv rays affect to us?
UV rays affect us. It is because they are high energy rays.
How does UV rays change the color of beads?
As they rays get weaker the UV beads lose color until its all white which means the UV rays are gone.
How does the ozone function?
Ozone protects us from the harmful UV rays. UV rays are harmful and fatal rays.
