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Radiation dosage is measured in sieverts and millisieverts, replacing the old unit called the rem. Dosage is assessed in terms of relative damage to different parts of the human body, some being more sensitive to damage than others. Acceptable dose limits are recommended by the International Commission on Radiological Protection (ICRP) and should be observed by all countries involved, though there is no guarantee of that. The following is taken from the World Nuclear Association website (www.world-nuclear.org), which is believed to be compatible with ICRP advice.
100 millisievert/year...lowest level at which any increase in cancer is evident. Above this exposure probability of cancer increases with dose.
1000 millisievert cumulative...would probably cause a fatal cancer many years later in 5 percent of persons exposed.
1000 millisievert single dose...would cause temporary sickness such as nausea and decreased white cell count, but not death (but see above for long term effect)
5000 millisievert single dose... would cause death within one month of half those receiving it
10,000 millisievert single dose... fatal in a few weeks.
Against the above which are all large doses, the average dose to US nuclear industry employees is quoted as 2.4 millisievert/year. so for a 40 year working life this amounts to 96 millisieverts cumulative.
The current limit for nuclear industry employees is 20 millisieverts/year. (Not clear if this is in the US or world-wide, but it is presumably ICRP recommended).
What else can I help you with?
When a person loses fluid by sweating or bleeding what minerals are lost in greatest quantity?
The minerals lost in the greatest quantity when a person sweats heavily are sodium and chloride, which are components of electrolytes. When a person is bleeding, iron is lost in significant quantities in the form of hemoglobin.
A vector quantity has direction a scalar quantity does not true or false?
True. A vector quantity has both magnitude and direction, while a scalar quantity only has magnitude.
What makes radiation dangerous to cells?
Nuclear radiation can be harmful to living things because the radiation can change a living thing's physical structure. The radiation can breakdown cell molecules, when this happens the cell cannot replicate itself. Because the cell is unable to replicate itself properly this can cause it to be more vulnerable to diseases such as cancer.
What is the ALARA Principle?
The alara principle stands for As Low As Reasonably Acheivable. This describes the evaluation which medics have to conduct before supplying an x-ray, or another procedure which emmits radiation. Medics have to consider whether or not the advantages outweigh the risks of inflicting radiation upon a person.
What type of light is most dangerous to the back of the eye?
The sun's primary danger to us comes in the form of UV light or radiation. UV radiation is a component of solar radiation. Artificial sources like welding machines, tanning beds, and lasers can also give off UV radiation. There are three types of UV radiation. UV-C is absorbed by the ozone layer and does not present any threat. UV-A and UV-B radiation can have adverse long- and short-term effects on the eyes and vision. Both long- and short-term exposure to UV radiation can harm the eyes, affect vision, and compromise overall eye health. There are several eye diseases and conditions caused or aggravated by exposure to UV radiation: Macular Degeneration. Cataracts.. Pterygium. Often called "surfer's eye." Skin Cancer. Skin cancer in and around the eyelids is also linked to prolonged UV exposure. Photokeratitis. Also known as corneal sunburn or "snow blindness."
Is it dangerous to be around radiation patients?
When sick people are treated with radiation, that does not make them radioactive. Radiation is dangerous, but radiation patients are not.
What is a special quantity of radiologic science?
One special quantity in radiologic science is radiation dose, which measures the amount of ionizing radiation absorbed by an object or person. It is essential in ensuring the safety of patients and healthcare workers in medical imaging procedures.
Are alpha radiation dangerous?
Any electromagnetic radiation can be dangerous. Alpha waves are higher on the radiation scale than x-rays so yes, they are dangerous.
Is it toxic or dangerous smoking dandelion leafs?
In massive quantity yes, but know more dangerous than tobacco, but in moderation it varies from person to person, for some it may have no effect, for others it gives of a mellow high and occasionally light dizziness.
Is heat radiation dangerous?
EXTREMLY
What is radiation and why is it dangerous?
Radiation is the emission of energy in the form of waves or particles. It can be dangerous because it can damage cells and DNA in the body, leading to health problems such as cancer and radiation sickness.
Is the radiation level in granite dangerous?
It is potentially dangerous. The radiation level found in granite is enough to suppress the immune system, cause birth defects, and cause cancer. There are granite composite options which are not containing the level of radiation that is dangerous.
Is ELF Radiation Dangerous?
Yes they very are
Is fukushimas radiation dangerous for the people of California?
Other than Japan most countries haven't been majorly affected by radiation at dangerous levels.
Is a radiation therapist a dangerous job?
Radiation therapists have a potentially dangerous job since they work with radioactive materials, however, there are numerous safety procedures, and if followed correctly, the job is not particularly dangerous. The median yearly salary for a radiation therapist in the U.S. is $74,813.
What types of radiation should you be worried about?
The most dangerous type of radiation is Nuclear radiation which is the one that should be most worried about.
What type of radiation is probably the most dangerous to humans?
Externally, gamma radiation is dangerous because it can penetrate the body. Alpha is most dangerous if ingested.
