Bức xạ ion hóa & Non-ion hóa Quan tâm trong lĩnh vực này của con người nguy hiểm tiềm năng xuất phát, một phần, từ tầm quan trọng của gây tổn hại hoặc thiệt hại mà một cá nhân được tiếp xúc có thể kinh nghiệm. Nó được biết đến rộng rãi rằng những rủi ro liên quan đến tiếp xúc với bức xạ ion hóa lớn hơn đáng kể hơn so với các tiếp xúc so sánh với bức xạ ion hóa không. Thực tế này, tuy nhiên nó dần trở thành chấp nhận rộng rãi hơn mà không tiếp. | Chapter 7 Ionizing Non-ionizing Radiation Interest in this area of potential human hazard stems in part from the magnitude of harm or damage that an individual who is exposed can experience. It is widely known that the risks associated with exposures to ionizing radiation are significantly greater than comparable exposures to non-ionizing radiation. This fact notwithstanding it is steadily becoming more widely accepted that non-ionizing radiation exposures also involve risks to which one must pay close attention. This chapter will focus on the fundamental characteristics of the various types of ionizing and non-ionizing radiation as well as on the factors parameters and relationships whose application will permit accurate assessments of the hazard that might result from exposures to any of these physical agents. RELEVANT DEFINITIONS Electromagnetic Radiation Electromagnetic Radiation refers to the entire spectrum of photonic radiation from wavelengths of less than 10-5 Ả 10 15 meters to those greater than 108 meters a dynamic wavelength range of more than 22 decimal orders of magnitude It includes all of the segments that make up the two principal sub-categories of this overall spectrum which are the Ionizing and the Non-Ionizing radiation sectors. Photons having wavelengths shorter than p 400 nm or 4 000 Ả fall under the category of Ionizing Radiation those with longer wavelengths will all be in the Non-Ionizing group. In addition the overall NonIonizing Radiation sector is further divided into the following three sub-sectors Optical Radiation Band p to 2 000 p or to mm Radio Frequency Microwave Band mm to 10 000 000 mm or to 10 000 m Sub-Radio Frequency Band 10 000 m to 10 000 000 m or 10 km to 10 000 km It must be noted that the entirety of the ultraviolet sector p to p wavelengths is listed as a member of the Optical Radiation Band and appears therefore to be a Non-Ionizing type of radiation. This is not true. UV radiation .
