English:
This is an image of a glowing red hot pellet of plutonium-238 dioxide to be used in a
radioisotope thermoelectric generator
for either the
Cassini
mission to
Saturn
or the
Galileo
mission to
Jupiter
. This image was provided by the Department of Energy via email and was taken at the Department's Los Alamos National Laboratory. Each pellet produces 62 watts of heat and when thermally isolated, can glow brilliant orange. Excerpt from email:
The pellet is glowing red because of the heat generated by the radioactive decay (primarily alpha) of the fuel. [Photos of glowing pellets are typically taken after insulating the pellet under a graphite blanket for a period of time (minutes), removing the blanket, and taking the picture.] These pellets were used in the RTGs that powered NASA's Galilleo and Cassini spacecraft on missions to Jupiter and Saturn, respectively. The pictures now being sent back from Saturn by the Cassini orbiter are made possible through this unique fuel source. To view the pictures from Saturn you may visit the NASA web site at www.jpl.nasa.gov/cassini. To read more about the General Purpose Heat source, please visit the Department of Energy website at
http://nuclear.gov/space/space-desc.html
[note]
Also, I am attaching another image of a Pu-238 fuel pellet that might be of better resolution that the one shown in the link below. If you use either of the images, please attribute it to the Los Alamos National Laboratory.
This image comes from
Los Alamos National Laboratory
, a national laboratory privately operated under contract from the
United States Department of Energy
by
Los Alamos National Security, LLC
between October 1, 2007 and October 31, 2018. LANL allowed anyone to use it for
any purpose, provided that
the copyright holder is properly attributed. Redistribution, derivative work, commercial use, and all other use is permitted. LANL
requires
the following text be used when crediting images to it: (
link
)
Unless otherwise indicated, this information has been authored by an employee or employees of the Los Alamos National Security, LLC (LANS), operator of the Los Alamos National Laboratory under Contract No. DE-AC52-06NA25396 with the U.S. Department of Energy. The U.S. Government has rights to use, reproduce, and distribute this information. The public may copy and use this information without charge, provided that this Notice and any statement of authorship are reproduced on all copies. Neither the Government nor LANS makes any warranty, express or implied, or assumes any liability or responsibility for the use of this information.
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2009-09-21 21:21
Raeky
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reverting to the properly cropped version
2006-09-20 12:55
Johnny--Bravo
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2005-04-12 03:23
Aarchiba
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Missed a bit of black border
2005-04-12 03:20
Aarchiba
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Trimmed black border.
2005-03-24 05:22
Deglr6328
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This is an image of a glowing hot unencapsulated pellet of plutonium-238 dioxide to be used in a [[radioisotpe thermoelectric generator]] for the [cassini spacecraft|Cassini]] mission to [[Saturn (planet)]]. The image was obtained from this [http://www.f
{{Information |Description={{en|This is an image of a glowing red hot pellet of plutonium-238 dioxide to be used in a
en:radioisotope thermoelectric generator
for either the
Cassini
mission to [[:en:Saturn (planet)|Saturn
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