File:Variation of radiation on Mars.png

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DescriptionVariation of radiation on Mars.png	English: This graphic shows the daily variations in Martian radiation and atmospheric pressure as measured by NASA's Curiosity rover. As pressure increases, the total radiation dose decreases. When the atmosphere is thicker, it provides a better barrier with more effective shielding for radiation from outside of Mars. At each of the pressure maximums, the radiation level drops between 3 to 5 percent. The radiation level goes up at the end of the graph due to a longer-term trend that scientists are still studying. The red line indicates the total dose rate of radiation from both charged particles and neutrons, as detected by Curiosity's Radiation Assessment Detector. The blue dots represent atmospheric pressure in units of Pascal (divided by four) taken by Curiosity's Rover Environmental Monitoring Station. The atmospheric data were scaled to fit in the same plot as the radiation data. The dosages and pressures are plotted over five sols, or Martian days, from the 21st sol of operations to the 26th. That corresponds to Aug. 26 to Sept. 1, 2012. Curiosity landed on Mars on Aug. 5, 2012. Radiation dose is given in arbitrary units to reflect the magnitude of the variations. Calibration of the absolute dose levels is ongoing. Polski: Wykres przedstawia codzienne wahania promieniowania jonizującego i ciśnienia atmosferycznego zmierzone przez łazik NASA Curiosity. Wraz ze wzrostem ciśnienia, dawka promieniowania zmniejsza się. Kiedy warstwa atmosfery poszerza się (podczas marsjańskiego dnia), zapewnia lepszą barierę i bardziej skuteczne ekranowanie na promieniowanie z zewnątrz Marsa. W każdym z maksimów ciśnienia, poziom promieniowania spada od 3 do 5 procent. Na końcu krzywej nieoczekiwanie wzrasta poziom promieniowania i ze względu na jego długoterminową tendencję, naukowcy ciągle studiują nad przyczyną tego zjawiska. Czerwona linia oznacza całkowitą dawkę promieniowania cząstek jonizujących i neutronów, wykrytych przez detektor RAD łazika Curiosity. Niebieskie kropki reprezentują ciśnienie atmosferyczne w jednostkach Pa (podzielonych przez cztery) zmierzone przez czujnik ciśnienia atmosferycznego stacji REMS. Atmosferyczne parametry zostały tak przeskalowane, aby je umieścić w tej samej działce, co dane promieniowania Dawki promjieniowania jonizującego i ciśnienia atmosferycznego były wyznaczane w ciągu pięciu marsjańskich dni, co w warunkach ziemskich odpowiada to okresowi od 26 sierpnia do 1 września 2012. Curiosity wylądował na Marsie 5 sierpnia 2012 roku. Dawki promieniowania jonizującego zostały podane w jednostkach niemianowanych. Kalibracja przyrządu RAD ciągle trwa. Image credit: NASA/JPL-
Date	17 November 2012
Source	http://www.nasa.gov/mission_pages/msl/multimedia/gallery-indexEvents.html
Author	NASA
Permission (Reusing this file)	NASA

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	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	23:17, 16 November 2012		1,600 × 1,200 (574 KB)	Romkur (talk \| contribs)	{{Information \|Description=This graphic shows the daily variations in Martian radiation and atmospheric pressure as measured by NASA's Curiosity rover. As pressure increases, the total radiation dose decreases. When the atmosphere is thicker, it provid...

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File:Variation of radiation on Mars.png

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17 November 2012