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ucodegen
Participant[quote Eugene]The correct unit to measure fallout is becquerels per square meter or curies per square kilometer.[/quote]
Yes and no. Both Becquerel and Curies relate to decay rate. There is no relation to the damage of human tissue, nor to the amount of energy delivered to target – which relate to Rads, Rems(roentgen) or Sieverts. Both of these measurements (Becquerel, Curies ) map directly to readings on unshielded counters (moment you start shielding the counter, you are considering energy).
The measures that are important to human ‘survivability’ are based in Rads/Rems because they also account for the potential tissue damage.
[quote Eugene]At the very least, they would want to use rads per hour. [/quote]Definitely. Or better Rems/hr because it takes into account the potential of the particular type of radiation to cause tissue damage.
Came across a good info source on Radiation:
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/R/Radiation.html
Half way down, has a comparative between different sources, including 3-mile island and Chernobyl.Participant[quote Eugene]The correct unit to measure fallout is becquerels per square meter or curies per square kilometer.[/quote]
Yes and no. Both Becquerel and Curies relate to decay rate. There is no relation to the damage of human tissue, nor to the amount of energy delivered to target – which relate to Rads, Rems(roentgen) or Sieverts. Both of these measurements (Becquerel, Curies ) map directly to readings on unshielded counters (moment you start shielding the counter, you are considering energy).
The measures that are important to human ‘survivability’ are based in Rads/Rems because they also account for the potential tissue damage.
[quote Eugene]At the very least, they would want to use rads per hour. [/quote]Definitely. Or better Rems/hr because it takes into account the potential of the particular type of radiation to cause tissue damage.
Came across a good info source on Radiation:
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/R/Radiation.html
Half way down, has a comparative between different sources, including 3-mile island and Chernobyl.Participant[quote=Eugene]Rad is not a unit of fallout. That map is meaningless.[/quote]
But Rad is a measurement of ionizing (high energy) radiation, which is related to fallout. It indicates the strength if its related to units of time.http://www.britannica.com/EBchecked/topic/488258/rad
http://en.wikipedia.org/wiki/Rad_%28unit%29Participant[quote=Eugene]Rad is not a unit of fallout. That map is meaningless.[/quote]
But Rad is a measurement of ionizing (high energy) radiation, which is related to fallout. It indicates the strength if its related to units of time.http://www.britannica.com/EBchecked/topic/488258/rad
http://en.wikipedia.org/wiki/Rad_%28unit%29Participant[quote=Eugene]Rad is not a unit of fallout. That map is meaningless.[/quote]
But Rad is a measurement of ionizing (high energy) radiation, which is related to fallout. It indicates the strength if its related to units of time.http://www.britannica.com/EBchecked/topic/488258/rad
http://en.wikipedia.org/wiki/Rad_%28unit%29Participant[quote=Eugene]Rad is not a unit of fallout. That map is meaningless.[/quote]
But Rad is a measurement of ionizing (high energy) radiation, which is related to fallout. It indicates the strength if its related to units of time.http://www.britannica.com/EBchecked/topic/488258/rad
http://en.wikipedia.org/wiki/Rad_%28unit%29Participant[quote=Eugene]Rad is not a unit of fallout. That map is meaningless.[/quote]
But Rad is a measurement of ionizing (high energy) radiation, which is related to fallout. It indicates the strength if its related to units of time.http://www.britannica.com/EBchecked/topic/488258/rad
http://en.wikipedia.org/wiki/Rad_%28unit%29Participant[quote=gandalf]You’re a shithead and GOP troll.[/quote] I don’t think he is a ‘GOP troll’.. I tend to vote on the Republican side, and seriously disagree with him. The building codes give the next potential buyer of the property, a good idea of the standard to which a building is built – otherwise– everything would be a teardown. If you drop GOP from the statement, you are probably most accurate. I really think he is trying to get a rise out of some people. He probably doesn’t have much planned for this weekend, so he wants to stir the waters.
Participant[quote=gandalf]You’re a shithead and GOP troll.[/quote] I don’t think he is a ‘GOP troll’.. I tend to vote on the Republican side, and seriously disagree with him. The building codes give the next potential buyer of the property, a good idea of the standard to which a building is built – otherwise– everything would be a teardown. If you drop GOP from the statement, you are probably most accurate. I really think he is trying to get a rise out of some people. He probably doesn’t have much planned for this weekend, so he wants to stir the waters.
Participant[quote=gandalf]You’re a shithead and GOP troll.[/quote] I don’t think he is a ‘GOP troll’.. I tend to vote on the Republican side, and seriously disagree with him. The building codes give the next potential buyer of the property, a good idea of the standard to which a building is built – otherwise– everything would be a teardown. If you drop GOP from the statement, you are probably most accurate. I really think he is trying to get a rise out of some people. He probably doesn’t have much planned for this weekend, so he wants to stir the waters.
Participant[quote=gandalf]You’re a shithead and GOP troll.[/quote] I don’t think he is a ‘GOP troll’.. I tend to vote on the Republican side, and seriously disagree with him. The building codes give the next potential buyer of the property, a good idea of the standard to which a building is built – otherwise– everything would be a teardown. If you drop GOP from the statement, you are probably most accurate. I really think he is trying to get a rise out of some people. He probably doesn’t have much planned for this weekend, so he wants to stir the waters.
Participant[quote=gandalf]You’re a shithead and GOP troll.[/quote] I don’t think he is a ‘GOP troll’.. I tend to vote on the Republican side, and seriously disagree with him. The building codes give the next potential buyer of the property, a good idea of the standard to which a building is built – otherwise– everything would be a teardown. If you drop GOP from the statement, you are probably most accurate. I really think he is trying to get a rise out of some people. He probably doesn’t have much planned for this weekend, so he wants to stir the waters.
Participant[quote=flu]Anyone following the concern on the nuclear reactor leaks?
http://seattletimes.nwsource.com/html/nationworld/2014472646_quakenuclear12.html%5B/quote%5D
Yep. I am curious why they are having cooling problems if they have ‘crashed’ the reactor. Yes, there may be a little heat produced, but remember that spent radioactive fuel is stored in large pools of water.The other advantage of water based reactors is that they stop generating heat when they loose water. The water has two purposes. To make the heat useful – as a working fluid, and as a nuclear moderator – to slow down the neutrons so that they can react. If the neutrons from uranium travel too fast, it will not support a continuing chain reaction.
Wiki seems to have a surprising amount of info on this..
http://en.wikipedia.org/wiki/Neutron_moderatorParticipant[quote=flu]Anyone following the concern on the nuclear reactor leaks?
http://seattletimes.nwsource.com/html/nationworld/2014472646_quakenuclear12.html%5B/quote%5D
Yep. I am curious why they are having cooling problems if they have ‘crashed’ the reactor. Yes, there may be a little heat produced, but remember that spent radioactive fuel is stored in large pools of water.The other advantage of water based reactors is that they stop generating heat when they loose water. The water has two purposes. To make the heat useful – as a working fluid, and as a nuclear moderator – to slow down the neutrons so that they can react. If the neutrons from uranium travel too fast, it will not support a continuing chain reaction.
Wiki seems to have a surprising amount of info on this..
http://en.wikipedia.org/wiki/Neutron_moderator -
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