Pyroelectric Fusion - MIT OpenCourseWare · Pyro / electricity Courtesy of the Building and Fire...
Transcript of Pyroelectric Fusion - MIT OpenCourseWare · Pyro / electricity Courtesy of the Building and Fire...
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Pyroelectric Fusion
Tina Srivastava
22.012 Final Presentation
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Agenda• What is Pyroelectricity?• Pyroelectric Materials• Pyroelectric Fusion Today• Pyroelectric Fusion for the
Future
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Agenda• What is Pyroelectricity?• Pyroelectric Materials• Pyroelectric Fusion Today• Pyroelectric Fusion for the
Future
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Pyro / electricity
Courtesy of the Building and Fire Research Laboratory. Courtesy of the National Oceanic and Atmospheric Administration.
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Agenda• What is Pyroelectricity?• Pyroelectric Materials• Pyroelectric Fusion Today• Pyroelectric Fusion for the
Future
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Pyroelectric MaterialsNatural:•Quartz, tourmaline, and other ionic crystals
•Bone and tendonCourtesy of the Department of Conservation.
Artificial:•Gallium Nitride (GaN)
•Cesium Nitrate (CsNO3)
** Lithium Tantalate (LiTaO3) crystal used in fusion **
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Agenda• What is Pyroelectricity?• Pyroelectric Materials• Pyroelectric Fusion Today• Pyroelectric Fusion for the
Future
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Courtesy of the UCLA Department of Physics and Astronomy. Used with permission.
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Courtesy of the UCLA Department of Physics and Astronomy. Used with permission.
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d + d + Ekin,rel3He (0.8 MeV) + n (2.45 MeV)
(Figure removed for copyright reasons.)
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Courtesy of the UCLA Department of Physics and Astronomy. Used with permission.
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Courtesy of the UCLA Department of Physics and Astronomy. Used with permission.
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Timeline2002 – Idea Proposed (Naranjo and Putterman)
2004 – more in depth discussion (Brownridge and Shafroth)
2004 – use in neutron production (Geuther and Danon)
2005 – key ingredient tungsten needle (Nature paper)
2005, April – Pyroelectric fusion demonstrated(UCLA team headed by Brian Naranjo)
2006, February – confirmed and improved upon(RPI team led by Jeffrey Geuther)
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Agenda• What is Pyroelectricity?• Pyroelectric Materials• Pyroelectric Fusion Today• Pyroelectric Fusion for the
Future
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So why is this useful?
"I believe that we could build an egg-sized device…and by plunging it into ice and warming it with your hands, you can generate a reasonably large fusion signal."
(Putterman)
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Conclusion• Pyroelectric fusion is very new(last 2 yrs)
• Pyroelectric effect
• D-D fusion
• Low energy generation, but applications as a neutron emitter
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Works Cited• B. Naranjo and S. Putterman. Search for fusion from energy focusing
phenomena in ferroelectric crystals. UCLA Crystal Fusion. http://rodan.physics.ucla.edu/pyrofusion/index.html
• Highfield, Roger. “Scientists put the Sun in our pockets.” Telegraph. April 28, 2005. http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2005/04/28/wsun28.xml&sSheet=/news/2005/04/28/ixworld.html
• “Pyroelectric Fusion.” Wikipediahttp://en.wikipedia.org/wiki/Pyroelectric_fusion
• Schirber, Michael. “Palmtop Nuclear Fusion Device Invented.” Live Science. Posted: 27 April 2005.
• “Table top fusion demonstrated.” BBC News. April 28, 2005. http://news.bbc.co.uk/1/hi/sci/tech/4489821.stm
• “Table top nuclear fusion device developed.” February 13, 2006. Physorg.com. http://www.physorg.com/news10806.html