| irradiation |
is a process of food preservation using either electron beams or high-speed gamma rays to affect the food. It destroys some vitamins and enzymes in the food, creates free radicals which may react with cell membranes of the human body causing them to function poorly, and may leave a trace amount of radioactivity in certain foods.
출처: www.bctheorganicway.com/glossary.htm
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| irradiation |
Irradiation is a type of heat treatment that is often used on blue topaz gemstones. The brown stone is irradiated to produce the blue color. Irradiated stones do not require special care.
출처: www.szul.com/services_policies/terms.asp
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| irradiation |
Irradiation is when a diamond is exposed to radiation to change its color, often followed by a high-heat treatment to seal in the new color. This treatment is usually permanent but could change if "torched" by a jeweler when repairing the setting. Make sure if you acquire synthetic a diamond that has been irradiated, to tell your jeweler before letting them work on it.
출처: www.jewelryglossary.com/colored-diamonds.htm
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