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	<title>Comments on: Scientists Designing &quot;Ion Shield&quot; To Protect Astronauts From Solar Wind</title>
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	<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/</link>
	<description>Space and astronomy news</description>
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		<title>By: kroosing 2 '42' via '37'</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-38842</link>
		<dc:creator>kroosing 2 '42' via '37'</dc:creator>
		<pubDate>Wed, 05 Nov 2008 16:55:54 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-38842</guid>
		<description>see also:  www.minimagnetosphere.rl.ac.uk/
full article:  www.minimagnetosphere.rl.ac.uk/downloads/pdfs/1Bamford.pdf</description>
		<content:encoded><![CDATA[<p>see also:  <a href="http://www.minimagnetosphere.rl.ac.uk/" rel="nofollow">http://www.minimagnetosphere.rl.ac.uk/</a><br />
full article:  <a href="http://www.minimagnetosphere.rl.ac.uk/downloads/pdfs/1Bamford.pdf" rel="nofollow">http://www.minimagnetosphere.rl.ac.uk/downloads/pdfs/1Bamford.pdf</a></p>
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		<title>By: Eric</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-13617</link>
		<dc:creator>Eric</dc:creator>
		<pubDate>Fri, 22 Feb 2008 14:47:12 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-13617</guid>
		<description>Does anyone think this could be a precurser to a far advanced technology that would resemble an actual shield against weapons?  I think it might be feasible that if you put a strong enough magnetic field in front of or around a vehicle or craft that you can abruptly stop an oncoming missle or other projectile.  The only problem that could rise, aside from getting to the point of creating the shield itself, would be protecting the crew(s) from the magnetic field.  If I&#039;m way off, please let me know.  I&#039;m just someone without any in depth knowledge of physics.</description>
		<content:encoded><![CDATA[<p>Does anyone think this could be a precurser to a far advanced technology that would resemble an actual shield against weapons?  I think it might be feasible that if you put a strong enough magnetic field in front of or around a vehicle or craft that you can abruptly stop an oncoming missle or other projectile.  The only problem that could rise, aside from getting to the point of creating the shield itself, would be protecting the crew(s) from the magnetic field.  If I&#039;m way off, please let me know.  I&#039;m just someone without any in depth knowledge of physics.</p>
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		<title>By: Protecting Future Mars Colonies From Solar Radiation: An Early Warning System &#187; astroengine.com</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-12972</link>
		<dc:creator>Protecting Future Mars Colonies From Solar Radiation: An Early Warning System &#187; astroengine.com</dc:creator>
		<pubDate>Mon, 18 Feb 2008 21:05:48 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-12972</guid>
		<description>[...] is afoot to protect long-haul travel through space (i.e. the six month transit between the Earth and Mars), but colonies will need to be warned about [...]</description>
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<p>[...] is afoot to protect long-haul travel through space (i.e. the six month transit between the Earth and Mars), but colonies will need to be warned about [...]</p>
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		<title>By: Donald Bogard</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9875</link>
		<dc:creator>Donald Bogard</dc:creator>
		<pubDate>Tue, 29 Jan 2008 20:45:45 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9875</guid>
		<description>The solar wind has an energy of about a kev per amu.  It would not take a large magnetic field to deflect such particles.  However, the skin of any spacecraft or spacesuit would stop such particles, so they are not really a danger.  I think  the authors of the article meant solar energetic particles, or solar flare particles, which have much greater energy.  The question is how strong a magnetic field would be required to deflact a 100 kev particle, or even a 1 Mev or 10 Mev
particle?</description>
		<content:encoded><![CDATA[<p>The solar wind has an energy of about a kev per amu.  It would not take a large magnetic field to deflect such particles.  However, the skin of any spacecraft or spacesuit would stop such particles, so they are not really a danger.  I think  the authors of the article meant solar energetic particles, or solar flare particles, which have much greater energy.  The question is how strong a magnetic field would be required to deflact a 100 kev particle, or even a 1 Mev or 10 Mev<br />
particle?</p>
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		<title>By: HolyAvengerOne</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9794</link>
		<dc:creator>HolyAvengerOne</dc:creator>
		<pubDate>Tue, 29 Jan 2008 12:22:01 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9794</guid>
		<description>Albeit now quite new, I&#039;m rejoicing to know that they&#039;re actually doing some serious research on this. It seems to me that any sort of high-speed/long-term space traveling will need some sort of energy shield-generation system and that&#039;s a first step... if they can make it practical.

Hmm also, just throwing this up in there but hmm, ion engine = strong electromagnetic field... anyone said something along those lines ?</description>
		<content:encoded><![CDATA[<p>Albeit now quite new, I&#039;m rejoicing to know that they&#039;re actually doing some serious research on this. It seems to me that any sort of high-speed/long-term space traveling will need some sort of energy shield-generation system and that&#039;s a first step&#8230; if they can make it practical.</p>
<p>Hmm also, just throwing this up in there but hmm, ion engine = strong electromagnetic field&#8230; anyone said something along those lines ?</p>
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		<title>By: Ron Evans</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9751</link>
		<dc:creator>Ron Evans</dc:creator>
		<pubDate>Tue, 29 Jan 2008 04:53:18 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9751</guid>
		<description>This is something I&#039;ve been thinking about for a long time.  I was supposing a current carrying superconducting loop which could encircle the spacecraft (this would be a spacecraft that was intended to remain in space at all timesand never land).  Since any long duration spacecraft should have the crew compartment (or at least a significant portion of it) spinning to counteract the the effects of long duration freefall, the superconducting loop could be around the outer shell.  Also since there would likely be a similar effect to the Earth&#039;s magnetic field where the charged particles would be directed in at the poles the protected area would be a torus ... just the right shape for a spining crew module.  I haven&#039;t done the calculations, but this seems probable to me.  I suppose the crew compartment and the computers within could be protected with a thin ferric shell that would direct the field lines through the shell instead of directly through the crew compartment.</description>
		<content:encoded><![CDATA[<p>This is something I&#039;ve been thinking about for a long time.  I was supposing a current carrying superconducting loop which could encircle the spacecraft (this would be a spacecraft that was intended to remain in space at all timesand never land).  Since any long duration spacecraft should have the crew compartment (or at least a significant portion of it) spinning to counteract the the effects of long duration freefall, the superconducting loop could be around the outer shell.  Also since there would likely be a similar effect to the Earth&#039;s magnetic field where the charged particles would be directed in at the poles the protected area would be a torus &#8230; just the right shape for a spining crew module.  I haven&#039;t done the calculations, but this seems probable to me.  I suppose the crew compartment and the computers within could be protected with a thin ferric shell that would direct the field lines through the shell instead of directly through the crew compartment.</p>
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		<title>By: Simon N</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9681</link>
		<dc:creator>Simon N</dc:creator>
		<pubDate>Mon, 28 Jan 2008 19:21:54 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9681</guid>
		<description>It might be possible to manufacture a material to replace the shuttle&#039;s heat shielding with a material that is not only resistant to temperature but also highly conductive.

That way an electric charge could be made to flow across the outer frame of the spacecraft, directing the magnetic field lines in any direction chosen.

Superconduction would also be easier to achieve given the low temperature of space.


Astrophysics undergrad.
Sussex University.</description>
		<content:encoded><![CDATA[<p>It might be possible to manufacture a material to replace the shuttle&#039;s heat shielding with a material that is not only resistant to temperature but also highly conductive.</p>
<p>That way an electric charge could be made to flow across the outer frame of the spacecraft, directing the magnetic field lines in any direction chosen.</p>
<p>Superconduction would also be easier to achieve given the low temperature of space.</p>
<p>Astrophysics undergrad.<br />
Sussex University.</p>
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		<title>By: Peter K</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9668</link>
		<dc:creator>Peter K</dc:creator>
		<pubDate>Mon, 28 Jan 2008 17:59:37 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9668</guid>
		<description>I suppose if we can survive and thrive within Earth&#039;s magnetic field, then we shouldn&#039;t have too much trouble with temporary shields around our spacecraft. I assume they&#039;d have the same proportional strength. The permanent magnet idea is great but as mentioned, can you imagine the weight? Besides, it would keep wiping all the computers&#039; memories!</description>
		<content:encoded><![CDATA[<p>I suppose if we can survive and thrive within Earth&#039;s magnetic field, then we shouldn&#039;t have too much trouble with temporary shields around our spacecraft. I assume they&#039;d have the same proportional strength. The permanent magnet idea is great but as mentioned, can you imagine the weight? Besides, it would keep wiping all the computers&#039; memories!</p>
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		<title>By: Chuck Lam</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9647</link>
		<dc:creator>Chuck Lam</dc:creator>
		<pubDate>Mon, 28 Jan 2008 14:32:35 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9647</guid>
		<description>Can&#039;t help wonder if any human anatomy research has been done on long term exposure to magnetic shielding.</description>
		<content:encoded><![CDATA[<p>Can&#039;t help wonder if any human anatomy research has been done on long term exposure to magnetic shielding.</p>
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		<title>By: vidyardhi nanduri</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9629</link>
		<dc:creator>vidyardhi nanduri</dc:creator>
		<pubDate>Mon, 28 Jan 2008 11:37:37 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9629</guid>
		<description>Ref: Ion shield- Protection
Sub: Welcome trend towards - flying Saucer concepts
Right direction and guidance help a positive approach for effective protection.
Be  aware that this can be carried away</description>
		<content:encoded><![CDATA[<p>Ref: Ion shield- Protection<br />
Sub: Welcome trend towards &#8211; flying Saucer concepts<br />
Right direction and guidance help a positive approach for effective protection.<br />
Be  aware that this can be carried away</p>
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		<title>By: W. Keil</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9621</link>
		<dc:creator>W. Keil</dc:creator>
		<pubDate>Mon, 28 Jan 2008 09:45:25 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9621</guid>
		<description>The idea is old, realisation steps are discussed in early papers: P. P. Saksonov, Protection against Radiation (Biological, Pharmacological, Chemical, Physical) inst. of Biomed. Problems, Moscow, N76-26840, and in ESA Journal 1988, Vol. 12 : h. KrÃ¶ger, P. Labelle, computer Simulation of a Magnetic Shield in a Realistic Space Environment and other internal studies.  Wishing the best for a successful project.</description>
		<content:encoded><![CDATA[<p>The idea is old, realisation steps are discussed in early papers: P. P. Saksonov, Protection against Radiation (Biological, Pharmacological, Chemical, Physical) inst. of Biomed. Problems, Moscow, N76-26840, and in ESA Journal 1988, Vol. 12 : h. KrÃ¶ger, P. Labelle, computer Simulation of a Magnetic Shield in a Realistic Space Environment and other internal studies.  Wishing the best for a successful project.</p>
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		<title>By: Ciencia Kanija &#187; Blog Archive &#187; CientÃ­ficos diseÃ±an un â€œescudo de ionesâ€? para proteger a los astronautas del viento solar</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9613</link>
		<dc:creator>Ciencia Kanija &#187; Blog Archive &#187; CientÃ­ficos diseÃ±an un â€œescudo de ionesâ€? para proteger a los astronautas del viento solar</dc:creator>
		<pubDate>Mon, 28 Jan 2008 09:15:56 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9613</guid>
		<description>[...] de alta energÃ­a para entonces. Autor: Ian O&#8217;Neill Fecha Original: 27 de enero de 2008 Enlace Original Articulos RelacionadosEscudos para las naves espaciales: Â¿Una realidad?PodrÃ­a generarse una [...]</description>
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<p>[...] de alta energÃ­a para entonces. Autor: Ian O&#039;Neill Fecha Original: 27 de enero de 2008 Enlace Original Articulos RelacionadosEscudos para las naves espaciales: Â¿Una realidad?PodrÃ­a generarse una [...]</p>
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		<title>By: Rev.</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9612</link>
		<dc:creator>Rev.</dc:creator>
		<pubDate>Mon, 28 Jan 2008 09:06:43 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9612</guid>
		<description>DDK:

But what is the weight and size of magnets large enuf&#039; to create the required bubble for safety??

It seems to me... the magnetic field driven by energy (from whatever source) should be constructed in such a way, so as, to be able to turn it on / off for use only during times of needed protection.</description>
		<content:encoded><![CDATA[<p>DDK:</p>
<p>But what is the weight and size of magnets large enuf&#039; to create the required bubble for safety??</p>
<p>It seems to me&#8230; the magnetic field driven by energy (from whatever source) should be constructed in such a way, so as, to be able to turn it on / off for use only during times of needed protection.</p>
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		<title>By: ddk</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9610</link>
		<dc:creator>ddk</dc:creator>
		<pubDate>Mon, 28 Jan 2008 08:36:15 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9610</guid>
		<description>A permanant magnet has a magnetic field and does not require any power.  The flux lines of the magnet can even be bent and/or shaped by iron, etc.</description>
		<content:encoded><![CDATA[<p>A permanant magnet has a magnetic field and does not require any power.  The flux lines of the magnet can even be bent and/or shaped by iron, etc.</p>
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		<title>By: Scientists Designing &#8220;Ion Shield&#8221; &#171; Newsout&#8217;s Weblog</title>
		<link>http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/comment-page-1/#comment-9606</link>
		<dc:creator>Scientists Designing &#8220;Ion Shield&#8221; &#171; Newsout&#8217;s Weblog</dc:creator>
		<pubDate>Mon, 28 Jan 2008 07:41:18 +0000</pubDate>
		<guid isPermaLink="false">http://www.universetoday.com/2008/01/27/scientists-design-ion-shield-to-protect-astronauts-from-solar-wind-radiation/#comment-9606</guid>
		<description>[...] Scientists Designing &#8220;Ion&#160;Shield&#8221;  British scientists are working to build an invisible magnetic &#8220;Ion Shield&#8221; to be used during missions in space. A minature solar wind has been created in an Oxfordshire laboratory to simulate the highly charged particles emitted from the Sun and a magnetic &#8220;bubble&#8221; is being conceived to surround future spaceships. The magnetic field should have sufficient deflecting strength to redirect cancer-causing energetic particles away from future astronauts. Useful, especially during the proposed long-haul flights to Mars should the Sun begin launching flares at the wrong timeâ€¦ (moreâ€¦) [...]</description>
		<content:encoded><![CDATA[<div style="padding: 1em;border: 1px black solid">
<p>[...] Scientists Designing &#034;Ion&nbsp;Shield&#034;  British scientists are working to build an invisible magnetic &#034;Ion Shield&#034; to be used during missions in space. A minature solar wind has been created in an Oxfordshire laboratory to simulate the highly charged particles emitted from the Sun and a magnetic &#034;bubble&#034; is being conceived to surround future spaceships. The magnetic field should have sufficient deflecting strength to redirect cancer-causing energetic particles away from future astronauts. Useful, especially during the proposed long-haul flights to Mars should the Sun begin launching flares at the wrong timeâ€¦ (moreâ€¦) [...]</p>
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