Radiation and radioactivity
Radiation-Particles emitted in atomic or nuclear processes(neutrons,gammas–photons of nucleus origin, x-rays–photons of atomic origin,beta-particles–electrons or positrons, alpha-particles–helium nuclei, heavy charged particles
Radioactivity-A specific type of nuclear processes in which a nucleus spontaneously decay, emitting radiation in the process.
Lets assume that you are living close to a nuclear power plant or working in a nuclear power plant...how much of radiation will go into your body?Here is a chart
- Occupational radiation protection.
- Medical radiation protection.
- Public radiation protection.
3 factors are then implemented into the 3 categories above. It is called the ALARA(as low as reasonably achievable) factors.
- Time- Reducing the time of an exposure reduces the effective doseproportionally. An example of reducing radiation doses by reducing the time of exposures might be improving operator training to reduce the time they take to handle a source.
- Distance- Increasing distance reduces dose due to the inverse square law. Distance can be as simple as handling a source with forcepsrather than fingers.
- Shielding- The effectiveness of a material as a radiation shield is related to its cross section for scattering and absorption, and to a first approximation is proportional to the total mass of material per unit area interposed along the line of sight between the radiation source and the region to be protected.
I hope that one can see that various preventive measures are taken to ensure that the radiation from a nuclear power plant will not harm the public. In my next post, I will discuss about a hypothetical terrorists attack on a nuclear power plant.....insya-Allah...
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| My guess is that Homer gets more radiation from his donuts than from a nuclear power plant. Yeah, for those who not know, Homer works in a nuclear power plant. |
Hence, people do not need to worry too much about radiation. My question is does radiation even harm human in any way?? If it does, how long after being exposed to radiation are the effects obvious? And what are the health defects due to radiation?
ReplyDeleteRoshen James
Me084283
james_thierry@hotmail.com
i believe the risk in nuclear power plant is much thought about matter to be seriously considered. In example, when human capability involved in the maintenance of a power plant no matter how skilled the personal accident do occur, the Chernobyl disaster is a prime example. Till this date Chernobyl is inhabitable for human life.
ReplyDeleteAmreet Raj Singh
ME083528
amreet90@hotmail.com
even there was various preventive measures are taken to ensure that the radiation from a nuclear power plant will not harm the public, but is there any possiblities to any explotion?
ReplyDeleteand does the heat energy causes any effect??
sivabalan s/o sanafhei raja
me083646
first of all, i like the cartoon about homer.
ReplyDeleteabout the post, yeah i totally agree with this post. once upon a time, my teacher had explained me about x-ray. he said, if human body exposed too much of x-ray, the cells would die and caused problem to internal body.
i surprise when i look to the chart that radiation from nuclear even lower than x-ray.
Muhammad Damanhuri
ME085988
damanoalberto@gmail.com
if we use the radiation in the correct way, it will not disserve but it would be beneficial to our lives. So, we must follow the regulations set by agencies recognized by the government before using this material such as at the nuclear power plant.if we do in a correct way, more advantages we can get
ReplyDeleteAnisa Syahira Che Azmi
CE083422
brown_stubby@yahoo.com
hi, living nearby a nuclear rector is one thing but can you explain how much radiation are exposed to when we are working in one, as afuture engineer I would really like to know about it.
ReplyDeleteThirukumaran Ramasamy Chettear
ME 083655
thiru_5519@hotmail.com
good post,just to add on..
ReplyDeleteBeneficial effects of nuclear radiation
Nuclear radiation has a number of beneficial uses, including:
•Medicinal, such as radio therapy for cancers and X-rays
•Dating purposes (no, this not where you nuke a ‘toxic’ date)
•Level indicators and thickness gauges
•In smoke detectors and
•In tracing locations of gas or liquid leaks or
•Tracing locations of malfunctioning in the body such as a blocked kidney
•Sterilisation of medical instruments or bacteria or moulds
yes,there are the bad side of it,its just a matter of how long the decay-time is..ex: cancer patients are emmited rays towards them.
OM GAJENDRA KUMARAN
ME083617
ogk_om@hotmail.com
Nuclear radiation can be both extremely beneficial and extremely dangerous. It just depends on how you use it. Nuclear materials (that is, s ubstances that emit nuclear radiation) are fairly common and have found their way into our normal vocabularies in many different ways. You have probably heard (and used) many of the following terms:
ReplyDeleteUranium
Plutonium
Alpha rays
Beta rays
Gamma rays
X-rays
Cosmic rays
Radiation
Nuclear power
Nuclear bombs
Nuclear waste
Nuclear fallout
Nuclear fission
Neutron bombs
Half-life
Radon gas
Ionization smoke detectors
Carbon-14 dating
Muhammad Sadiq Bin Anipah
Me083602
after reading the article... i dont think that nuclear radiation will be an obstacle to devolope the nuclear energy ..... there is probabaly more harm by just walking on the street than nuclear radiation... besides that all nuclear energy company employees are given safety measurement to make the harm due to radiation to zero....
ReplyDeleteRavindran navalan
me083947
very informational bar graph given. i did not know that even humans have naturally occuring radiation. its even higher than the amount of radiation we get froma power plant. therefore my answer to the question on "what needs to be done?", nothing else can be done to protect ourselves, what we should do next is build one NPP in our country
ReplyDeletejoel bharath
me083556
sect6
the number of people get expose to nuclear radiation is less then the number of road accident in malaysia, so what else do we need to think of. nuclear energy is a safe energy, it is not like what people are talking about. less worry and lets get started with this new energy.
ReplyDeleteJustin Peter Joseph
terbalik_just23@hotmail.com
ME 083557
Since it is a proven fact that radiation will not harm our body, so there should have be no objection about the plan to build nuclear power plant in our country. I hope that one can see that various preventive measures are taken to ensure that the radiation from a nuclear power plant will not harm the public. In my next post, I will discuss about a hypothetical terrorists attack on a nuclear power plant.
ReplyDeleteNURUL NAJIAH BINTI HASHIM
ME083972
nurul.najiah@yahoo.com