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The Rem used to be used in Health Physics to measure radiation dose, it is an acronym for Rontgen Equivalent Man.(The methodology allows for the different effects of different types of radiation). The unit now used is the Sievert (Sv), 1 Sievert = 100 Rem. This is a large unit, so millisieverts are used for practical personnel radiation measures, so 1 millisievert = 100 millirem.
Recommended radiation levels for nuclear workers are set by the ICRP (International Committee for Radiation Protection). These used to be set at 5 Rem/year (50 milliSv) but now the level is 20 milliSv/year ie 2 Rem/year. The use of Rem and millirem has been discontinued in the nuclear industry in favour of Sieverts and millisieverts.
However as someone with nuclear experience going back to 1958 I find it difficult to think in Sieverts. For example I know that 500 Rem will kill roughly 1/2 the people exposed to it within a month, now I have to change that to 5 Sieverts. Fortunately that level of exposure has only happened once (at Chernobyl).
What else can I help you with?
Why are rems preferred for measuring health effects of radiation?
REMs (Roentgen Equivalent Man) are preferred for measuring health effects of radiation because they take into account the different biological effects of ionizing radiation on human tissues. REMs provide a more accurate assessment of the potential harm caused by radiation exposure compared to other units such as sieverts or grays, which do not consider the specific impact on human health.
What effects does nuclear radiation have on humans?
Doses of 300 rems or more cause temporary hair loss, but also more significant internal harm, including damage to nerve cells and the cells that line the digestive tract. Severe loss of white blood cells, which are the body's main defense against infection, makes radiation victims highly vulnerable to disease. Radiation also reduces production of blood platelets, which aid blood clotting, so victims of radiation sickness are also vulnerable to hemorrhaging. Half of all people exposed to 450 rems die, and doses of 800 rems or more are always fatal. Besides the symptoms mentioned above, these people also suffer from fever and diarrhea. As of yet, there is no effective treatment--so death occurs within two to fourteen days.
What factors determine the extent of radiation damage?
The factors that determine the extent of radiation damage include the type of radiation, the dose received, the duration of exposure, the sensitivity of the tissues or organs affected, and the body's ability to repair damage. Additionally, factors such as the type of cells in the affected area and individual genetic variations can also influence the extent of radiation damage.
What are the units of radiation doses?
Sieverts and milliSieverts are used now. They replaced the old rem and millirem. There is a factor 100 difference, so 1 Sievert = 100 Rem. The current limit for nuclear industry employees is 20 milliSv/year, though the actual average level in the US is about 2.4 milliSv.
How long does it take radioactive symptoms to appear?
This varies significantly depending on the dosage received and the individual's response to the poisoning. There are different scales for use in measuring the dosage. One commonly used measurement of the radiation absorbed dose of Roentgens in humans or other mammals is REMs (Roentgen Equivalent Man/Mammal). If you use these units in association with the Gray Scale, then 100 REMs = 1 GY on the Gray Scale.Early symptoms of radiation poisoning include nausea and vomiting, diarrhea, headache, fever, and abnormal central nervous system (CNS) function. These will usually appear within hours of exposure of larger doses. Increasing doses increase the severity of these symptoms and shorten the timeframes of the progression of the symptoms to morbidity and mortality.Exposure of humans to:1-2 GY:Results in a mild expression of the above symptoms and usually no deaths, but can dramatically increase the potential for long term effects, such as cancer or genetic damage, as do all the following exposures.2-6 GY:Results in slightly more severe early symptoms, and up to 50% mortality in seven to twenty-eight days.6-8 GY:Results in severe symptoms within 3 - 4 hours such as diarrhea, nausea and vomiting, very high fever, severe headache and 100% mortality in less than seven days.8-30 GY:Results in very severe symptoms in less than 10 minutes, rapid incapacitation and CNS involvement with 100% mortality within 2 hours of exposure.30 GY and over:Results in seizures and tremors and 100% mortality in under 30 minutes.
When was Rems Umeasiegbu born?
Rems Umeasiegbu was born in 1943.
How tall is Kyle Rems?
Kyle Rems is 6' 2".
What is Rems real gender?
Rems is a Girl, well a woman by human standards.
What is the population of Rems-Murr-Kreis?
Rems-Murr-Kreis's population is 416,255.
What is the maximum permissible dose in rems a radiographer is allowed to have per year?
5 rems/year
What is the area of Rems-Murr-Kreis?
The area of Rems-Murr-Kreis is 858.03 square kilometers.
What is the birth name of Kyle Rems?
Kyle Rems's birth name is Kyle Christian Adiekweh.
Who sung the end of the world?
The REMS band.
Where are minerals located in a car?
On the rems of the tires
Is dolce and gabbana french?
no, it's Italian,you rems
How many miles from Brussels to Rems?
175 miles.
What is a tree not yet a meter high?
Seedling - by Rems :-)
