Long duration space flight - Revision history

RichardWSmith: /* Cumulative Radiation Exposure */

2024-08-26T17:55:23Z

Cumulative Radiation Exposure

2024-08-26T17:53:58Z

'current' means 2024.

2024-07-02T10:19:13Z

Added link.

2024-07-02T10:15:45Z

Cumulative Radiation Exposure

2024-07-02T10:13:58Z

Reworded sentence.

2024-07-02T10:08:15Z

Gave more examples of radiation doses.

2024-07-02T09:45:19Z

Cumulative Radiation Exposure

2024-07-02T09:40:42Z

2024-07-02T09:38:46Z

Cumulative Radiation Exposure

2024-07-02T09:37:35Z

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 * The radiation received a typical person on Earth (from all sources) is 6.2 mSv per year.
 * One chest medical CT scan is 7 mSv.
-* USA one year dose for worker in Nuclear Industry: 50 mSv / year.
+* USA one year maximum dose for worker in Nuclear Industry: 50 mSv / year.
 * the average radiation in the city Ramsar, Iran is 260 mSv / year.  (The people in this city do not show any health effects from this high dose.  A maximum safe value?)

← Older revision		Revision as of 17:53, 26 August 2024
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−	The number of astronauts who have been in space for a long time is steadily increasing. The number people who have spent more than a year in space currently numbers 52. <ref>http://www.spacefacts.de/english/e_tis.htm\| Astronauts & Cosmonauts Sorted by Time In Space</ref>	+	The number of astronauts who have been in space for a long time is steadily increasing. The number people who have spent more than a year in space currently (2024) numbers 52. <ref>http://www.spacefacts.de/english/e_tis.htm\| Astronauts & Cosmonauts Sorted by Time In Space</ref>

	The longest time spent in space is currently 878 days, 11 hours, & 29 minutes, by Gennadi Ivanovich Padalka of the USSR.		The longest time spent in space is currently 878 days, 11 hours, & 29 minutes, by Gennadi Ivanovich Padalka of the USSR.

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 * One dental X-Ray is: 0.005 mSv.
 * Radiation on a flight from LA to New York: 0.04 mSv.
-* the radiation (from cosmic rays) in Vancouver B.C (at sea level) is 0.30 mSv / year.
+* the radiation (from [[Cosmic Radiation | cosmic rays]]) in Vancouver B.C (at sea level) is 0.30 mSv / year.
 * the radiation (from cosmic rays) from the top of Mt. Lorne, Yukon (at 2,000 m) is 0.84 mSv / year.<ref>https://www.cnsc-ccsn.gc.ca/eng/resources/radiation/radiation-doses/# |Gov of Canada, Radiation Doses</ref>
 * The radiation received a typical person on Earth (from all sources) is 6.2 mSv per year.

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 * USA one year dose for worker in Nuclear Industry: 50 mSv / year.
-* the average radiation in the city Ramsar, Iran is 260 mSv / year.  (The people in this city does not show any health effects from this high dose.  A maximum safe value?)
+* the average radiation in the city Ramsar, Iran is 260 mSv / year.  (The people in this city do not show any health effects from this high dose.  A maximum safe value?)
 See: <ref>https://pubmed.ncbi.nlm.nih.gov/11769138/ | Very high background radiation areas of Ramsar, Iran: preliminary biological studies.</ref>, <ref>https://www.ecolo.org/documents/documents_in_english/ramsar-natural-radioactivity/ramsar.html</ref>,
 <ref>https://aerb.gov.in/images/PDF/image/34086353.pdf | Ramsar suggests that current regulations for radiation are too strict.</ref>, <ref>https://www.sciencedirect.com/science/article/abs/pii/S0531513104018369 | Natives of Ramsar had better response to high gamma ray doses</ref>, <ref>https://www.researchgate.net/publication/228757260_Are_the_Inhabitants_of_High_Background_Radiation_Areas_of_Ramsar_More_Radioresistant_Scope_of_the_Problem_and_the_Need_for_Future_Studies</ref>, <ref>https://www.ntanet.net/the-naturally-occurring-high-radiation-levels-of-ramsar-iran/</ref>

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 * the radiation (from cosmic rays) in Vancouver B.C (at sea level) is 0.30 mSv / year.
 * the radiation (from cosmic rays) from the top of Mt. Lorne, Yukon (at 2,000 m) is 0.84 mSv / year.<ref>https://www.cnsc-ccsn.gc.ca/eng/resources/radiation/radiation-doses/# |Gov of Canada, Radiation Doses</ref>
-* The radiation from a typical person on Earth is 6.2 mSv per year.
+* The radiation received a typical person on Earth (from all sources) is 6.2 mSv per year.
 * One chest medical CT scan is 7 mSv.
 * USA one year dose for worker in Nuclear Industry: 50 mSv / year.

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 This number does not mean much, but these values might give some perspective:
 * the average radiation on Earth is 6.2 mSv per year.
-* the average radiation in the city Ramsar, Iran is 260 mSv / year.  (This city does not show any health effects from this high dose, & is considered a maximum safe value.)
+* the average radiation in the city Ramsar, Iran is 260 mSv / year.  (The people in this city does not show any health effects from this high dose.  A maximum safe value?)
 See: <ref>https://pubmed.ncbi.nlm.nih.gov/11769138/ |Very high background radiation areas of Ramsar, Iran: preliminary biological studies.</ref>, <ref>https://www.ecolo.org/documents/documents_in_english/ramsar-natural-radioactivity/ramsar.html</ref>,
 <ref>https://aerb.gov.in/images/PDF/image/34086353.pdf |Ramsar suggests that current regulations for radiation are too strict.</ref>, <ref>https://www.sciencedirect.com/science/article/abs/pii/S0531513104018369 |Natives of Ramsar had better response to high gamma ray doses</ref>, <ref>https://www.researchgate.net/publication/228757260_Are_the_Inhabitants_of_High_Background_Radiation_Areas_of_Ramsar_More_Radioresistant_Scope_of_the_Problem_and_the_Need_for_Future_Studies</ref>, <ref>https://www.ntanet.net/the-naturally-occurring-high-radiation-levels-of-ramsar-iran/</ref>

← Older revision		Revision as of 09:40, 2 July 2024
Line 1:		Line 1:
−	The number of astronauts who have been in space for a long time is steadily increasing. The number people who have spent more than a year in space currently numbers 52. <ref>http://www.spacefacts.de/english/e_tis.htm\|Astronauts & Cosmonauts Sorted by Time In Space</ref>	+	The number of astronauts who have been in space for a long time is steadily increasing. The number people who have spent more than a year in space currently numbers 52. <ref>http://www.spacefacts.de/english/e_tis.htm\| Astronauts & Cosmonauts Sorted by Time In Space</ref>

	The longest time spent in space is currently 878 days, 11 hours, & 29 minutes, by Gennadi Ivanovich Padalka of the USSR.		The longest time spent in space is currently 878 days, 11 hours, & 29 minutes, by Gennadi Ivanovich Padalka of the USSR.

@@ Line 5: / Line 5: @@
 ==Cumulative Radiation Exposure==
-The radiation received in the International Space Station is 144 milliSievert / year.  This is about 28% of the radiation dose of a 2.5 year Mars mission (assuming a mission where the total radiation exposure is 520 mSv).  See the Mars Direct Mission, described in the "Case for Mars", by Robert Zubrin.
+The radiation received in the International Space Station is 144 milliSievert / year.  This is about 28% of the radiation dose of a 2.5 year Mars mission (assuming a mission where the total radiation exposure is 520 mSv over 2.5 years).  See the Mars Direct Mission, described in the "Case for Mars", by Robert Zubrin.
 This number does not mean much, but these values might give some perspective: