Radiation Safety Basics
Since stone age energy in form of radiations are use to cure disease and other routine applications around the world. But the industrial revouluton and latter on medical science development open new windows of radiation application in many areas. Now a days radiation of different frequency ranged are used from kitchen for cooking to ripen food in stores and cure tumors in hospitals.
Radiation application increasing day by day and it revolutionlized the medical science by enabling sugent to treat patent by avoiding invasive procedures. But, beside all benefits radiation have a dark side where the living thing includeing human animals and plant can have devasting effects if the radiation exposure eceeds a certain limit. And these eposure limits can be maintain by adopting radiation safety principels and international agreed stamdards.
In this blog we will discussed basics of radation safety so that our read especially radiation safety professionals could have clear understanding of of radiation safety whch.
You can not see itYou can not feel it
From Where radiation Comes
Natural Or Background Radiation
Man-made Radiations
Radiation is a dinamic term used for to define the process through which energy radiate or travel in space or in matter. For eample the visible light radiation from sun radiate from Sun and trave to earth through space and matter (Atmsphere). There are two major types of radiations clasified according to their frequency (energy) and wavelegth. These radiations incldues;
1. Ionizing Radation
2. None Ionizing radiation
Ionzating raduation are through radiation whch can ionize atom on ts eposure to certain limt depaends on its threshold energy. For eample alpha rays having energy from
Nn ionizing radiation are those radiation which can not ioninze (ploarized atom or molecule) on its eposure it can change chmcal and phyocal propertes of the matter when expose to certain limit. For eample sun light (visible light) fall onto water surface can change physcal properties of water that includes water tempertaure and volume.
Non-Ionizing Radiation
None Inzing radiation are the radiation with freuency below than 1000 Hz these radiation are considered to be less harm n terms of cell damge at DNA level and use in many application include radio, TV mobile communicating, cooking and heating purposed. The non ionizing radiation inlcudes, Radio wave , Microwaves, Ultra vlout waves, vsible light.
Safet whle dealing with None Ionizing Radiations
Ionizing Radiation
Safety Whle dealing with Ionizing Radiations
It is important to understand the principal of radiation effects/harmness on livng thing or more perticularly human cell - it damage cell DNA by ionizing water molecule in cell. And these damges increase with time and distance between source of radiation and and exposure time.Therefore to deal with Ionization radation TDS prinicpal must be followed
ALARA Program for Radiation Safety
Principles of lowering radiation exposure
Time, distance and shielding principal in radiation safetyTime is directly proportional to radiation eposure
distance between radiation source or emitter and receiver is inversely proportional to radiation exposure rate Shielding is inversely proportional to radiation exposure rate- Rays are the most danger for human being.
Organs at Risk in radiation safety
- Eyes - retina
- Gonads
- Skin
- Muscles
- Brain
- Heart
- Bones
Industrial Application of Radiation
- Industrial Radio Graphgy
- NDT testing
- Medical Applications of Radiation
- Radiology
- Oncology
- Nuclear Medicine
Radiation measure device
- LTDs Films
- Dosimeters
- SOls
- Pocket dosimeters
- Survey Meter
Why should not work in radiation application areas
- Pregnant women
- People with disabilities
- Annual dose limit for radiation workers and common people
- 5 Gray
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