Re: [Vo]:making antimatter
Does it really matter? Positrons are actually neutrons since the positive pole of a battery is actually the negative when you think about it. Richard
Re: [Vo]:making antimatter
Although it is a good bet that Richard offered this bit of hidden knowledge 'tongue-in-cheek' - perhaps as the start of a dime-box sucker-bet, so to speak... ... there is literal truth to it (in vino veritas?) ... so be glad I saved you a few bucks for the next round of shots - with the following whiskey-talk ... OTOH does the dime-box open this early? The positive charge is almost always identified figuratively as an electron hole and what hidden particle in nature always acts as an electron hole? BTW if you said positive ion - instead of positron - my conclusion is still the same: the +ion is positive because it has an attached real positron. This particle however is normally neutral and unseen to us. All of this semantics duality - which is inherent in the fact that a figurative hole can be a real particle - can be resolved by looking at, or specifically for the interface which is the thin-line or boundary between 3-space and reciprocal space. This is the space where positrons can emerge from normal-neutrality (from our perspective) so to speak, and hang out with impunity, like on a teetering bar-stool, and not fall fully into forbidden-zone of 3-space (where all the crazies live)... Jones From: R C Macaulay [EMAIL PROTECTED] Does it really matter? Positrons are actually neutrons since the positive pole of a battery is actually the negative when you think about it. Richard
Re: [Vo]:making antimatter
One must devote the necessary time to meditate upon the musings of Jones in order to gather the full depth.. or, the absence of depth, when considering the word figurative. Not only can the hole exist, it can exist when it's absent. Interestingly, like a lost wax method of casting. The question remains.. how does the wax become lost? Fortunately, the Dime Box keeps regular hours, else folks could wander in and only catch part of the conversation which can lead to strange conclusions. Richard Although it is a good bet that Richard offered this bit of hidden knowledge 'tongue-in-cheek' - perhaps as the start of a dime-box sucker-bet, so to speak... ... there is literal truth to it (in vino veritas?) ... so be glad I saved you a few bucks for the next round of shots - with the following whiskey-talk ... OTOH does the dime-box open this early? The positive charge is almost always identified figuratively as an electron hole and what hidden particle in nature always acts as an electron hole? BTW if you said positive ion - instead of positron - my conclusion is still the same: the +ion is positive because it has an attached real positron. This particle however is normally neutral and unseen to us. All of this semantics duality - which is inherent in the fact that a figurative hole can be a real particle - can be resolved by looking at, or specifically for the interface which is the thin-line or boundary between 3-space and reciprocal space. This is the space where positrons can emerge from normal-neutrality (from our perspective) so to speak, and hang out with impunity, like on a teetering bar-stool, and not fall fully into forbidden-zone of 3-space (where all the crazies live)... Jones -- From: R C Macaulay [EMAIL PROTECTED] Does it really matter? Positrons are actually neutrons since the positive pole of a battery is actually the negative when you think about it. Richard
Re: [Vo]:making antimatter
Kewl, now we can realize Angels and Demons (coming to a theatre near you). Terry On Fri, Nov 21, 2008 at 3:53 PM, Harry Veeder [EMAIL PROTECTED] wrote: News Laser creates billions of antimatter particles Wednesday, 19 November 2008 Cosmos Online Positron factory: Physicist Hui Chen sets up targets for the anti- matter experiment at the LLNL laser facility. Credit: LLNL SYDNEY: By shooting a laser through a gold disc no bigger than the head of a drawing pin, physicists have created more than 100 billion particles of antimatter. The ability to create vast numbers of positrons in the laboratory opens the door to new avenues of research, they say. These include an understanding of the physics behind black holes, gamma ray bursts and why more matter than antimatter survived the Big Bang. Super-sized portion of positrons We've detected far more antimatter than anyone else has ever measured in a laser experiment, said Hui Chen, a physicist at the Lawrence Livermore National Laboratory (LLNL) in California, U.S., who led the experiment. We've demonstrated the creation of a significant number of positrons using a short-pulse laser. Previous experiments made smaller quantities of positrons using lasers and paper-thin targets - but new simulations showed that millimetre-thick gold could be a far more effective source, said the researchers, who report their finding this week at the American Physical Society's Division of Plasma Physics Meeting in Dallas, South Carolina. Chen and her team used a short, ultra-intense laser to irradiate a millimetre-thick gold target. In the experimental set-up, the laser ionises and accelerates electrons, which are driven right through the gold target. On their way, the electrons interact with the gold nuclei, which serve as a catalyst to create positrons. Electron's opposite number The electrons give off packets of pure energy, which decay into matter and antimatter, following the predictions of Einstein's famous equation that relates matter and energy. By concentrating the energy in space and time, the laser produces positrons more rapidly and in greater density than ever before in the laboratory. Positrons are the antimatter equivalent to the electron, and behave in a similar way, though they have the opposite charge (see, New twist to matter-antimatter mystery, Cosmos Online). The researchers took advantage of this property to detect them, by using a typical device to detect electrons (a spectrometer) and equipping it to detect particles with opposite polarity as well. By creating this much antimatter, we can study in more detail whether antimatter really is just like matter, and perhaps gain more clues as to why the universe we see has more matter than antimatter, said LLNL team member Peter Beiersdorfer. We've entered a new era, Beiersdorfer added. Now, that we've looked for it, it's almost like it hit us right on the head. We envision a centre for antimatter research, using lasers as cheaper antimatter factories. Particles of antimatter are almost immediately annihilated by contact with normal matter, and converted to pure energy in the form of gamma rays. There is considerable speculation as to why the observable universe appears to be almost entirely matter, whether other universes could be almost entirely antimatter, and what might be possible if antimatter could be harnessed. Product of energetic celestial events Normal matter and antimatter are thought to have been in balance in the very early universe, but, due to a mysterious 'asymmetry', the antimatter decayed or was annihilated, and today very little remains. Over the years, physicists had theorised about antimatter, but it wasn't confirmed to exist experimentally until 1932. High-energy cosmic rays impacting Earth's atmosphere produce minute quantities of antimatter in the resulting jets, and physicists have learned to produce modest amounts of anti-matter using traditional particle accelerators and smaller laser set-ups in the lab. Antimatter may also be churned our in regions like the centre of the Milky Way and other galaxies, where very energetic celestial events occur. The presence of the resulting antimatter is detectable by the gamma rays produced when positrons are destroyed when they come into contact with nearby matter. ### With the Lawrence Livermore National Laboratory. [Non-text portions of this message have been removed]
Re: [Vo]:making antimatter
or... Tonight's C.S.I. episode: Angel decimated. Pin head suspected. Harry - Original Message - From: Terry Blanton [EMAIL PROTECTED] Date: Friday, November 21, 2008 4:00 pm Subject: Re: [Vo]:making antimatter Kewl, now we can realize Angels and Demons (coming to a theatre near you). Terry On Fri, Nov 21, 2008 at 3:53 PM, Harry Veeder [EMAIL PROTECTED] wrote: News Laser creates billions of antimatter particles Wednesday, 19 November 2008 Cosmos Online Positron factory: Physicist Hui Chen sets up targets for the anti- matter experiment at the LLNL laser facility. Credit: LLNL SYDNEY: By shooting a laser through a gold disc no bigger than the head of a drawing pin, physicists have created more than 100 billion particles of antimatter. The ability to create vast numbers of positrons in the laboratory opens the door to new avenues of research, they say. These include an understanding of the physics behind black holes, gamma ray bursts and why more matter than antimatter survived the Big Bang. Super-sized portion of positrons We've detected far more antimatter than anyone else has ever measured in a laser experiment, said Hui Chen, a physicist at the Lawrence Livermore National Laboratory (LLNL) in California, U.S., who led the experiment. We've demonstrated the creation of a significant number of positrons using a short-pulse laser. Previous experiments made smaller quantities of positrons using lasers and paper-thin targets - but new simulations showed that millimetre-thick gold could be a far more effective source, said the researchers, who report their finding this week at the American Physical Society's Division of Plasma Physics Meeting in Dallas, South Carolina. Chen and her team used a short, ultra-intense laser to irradiate a millimetre-thick gold target. In the experimental set-up, the laser ionises and accelerates electrons, which are driven right through the gold target. On their way, the electrons interact with the gold nuclei, which serve as a catalyst to create positrons. Electron's opposite number The electrons give off packets of pure energy, which decay into matter and antimatter, following the predictions of Einstein's famous equation that relates matter and energy. By concentrating the energy in space and time, the laser produces positrons more rapidly and in greater density than ever before in the laboratory. Positrons are the antimatter equivalent to the electron, and behave in a similar way, though they have the opposite charge (see, New twist to matter-antimatter mystery, Cosmos Online). The researchers took advantage of this property to detect them, by using a typical device to detect electrons (a spectrometer) and equipping it to detect particles with opposite polarity as well. By creating this much antimatter, we can study in more detail whether antimatter really is just like matter, and perhaps gain more clues as to why the universe we see has more matter than antimatter, said LLNL team member Peter Beiersdorfer. We've entered a new era, Beiersdorfer added. Now, that we've looked for it, it's almost like it hit us right on the head. We envision a centre for antimatter research, using lasers as cheaper antimatter factories. Particles of antimatter are almost immediately annihilated by contact with normal matter, and converted to pure energy in the form of gamma rays. There is considerable speculation as to why the observable universe appears to be almost entirely matter, whether other universes could be almost entirely antimatter, and what might be possible if antimatter could be harnessed. Product of energetic celestial events Normal matter and antimatter are thought to have been in balance in the very early universe, but, due to a mysterious 'asymmetry', the antimatter decayed or was annihilated, and today very little remains. Over the years, physicists had theorised about antimatter, but it wasn't confirmed to exist experimentally until 1932. High-energy cosmic rays impacting Earth's atmosphere produce minute quantities of antimatter in the resulting jets, and physicists have learned to produce modest amounts of anti-matter using traditional particle accelerators and smaller laser set-ups in the lab. Antimatter may also be churned our in regions like the centre of the Milky Way and other galaxies, where very energetic celestial events occur. The presence of the resulting antimatter is detectable by the gamma rays produced when positrons are destroyed when they come into contact with nearby matter. ### With the Lawrence Livermore National Laboratory. [Non-text portions of this message have been removed]
Re: [Vo]:making antimatter
There we were, Michael, Azrael, and I, dancing on the head of this very cool gold pin we found. Then, this beam of light hits the pin beneath us, and streamers come shooting out. Two of the streamers of energy cross next to Azrael, and POOF, hes gone, man! Michael draws his flaming sword, fight fire with fire, you know, but no use. He swings at this wierd thing, size of an electron, but positive, man! and POOF, hes vaporized! I barely got out of there with my wings, man! On Fri, Nov 21, 2008 at 5:10 PM, Harry Veeder [EMAIL PROTECTED] wrote: or... Tonight's C.S.I. episode: Angel decimated. Pin head suspected. Harry - Original Message - From: Terry Blanton [EMAIL PROTECTED] Date: Friday, November 21, 2008 4:00 pm Subject: Re: [Vo]:making antimatter Kewl, now we can realize Angels and Demons (coming to a theatre near you). Terry On Fri, Nov 21, 2008 at 3:53 PM, Harry Veeder [EMAIL PROTECTED] wrote: News Laser creates billions of antimatter particles Wednesday, 19 November 2008 Cosmos Online Positron factory: Physicist Hui Chen sets up targets for the anti- matter experiment at the LLNL laser facility. Credit: LLNL SYDNEY: By shooting a laser through a gold disc no bigger than the head of a drawing pin, physicists have created more than 100 billion particles of antimatter. The ability to create vast numbers of positrons in the laboratory opens the door to new avenues of research, they say. These include an understanding of the physics behind black holes, gamma ray bursts and why more matter than antimatter survived the Big Bang. Super-sized portion of positrons We've detected far more antimatter than anyone else has ever measured in a laser experiment, said Hui Chen, a physicist at the Lawrence Livermore National Laboratory (LLNL) in California, U.S., who led the experiment. We've demonstrated the creation of a significant number of positrons using a short-pulse laser. Previous experiments made smaller quantities of positrons using lasers and paper-thin targets - but new simulations showed that millimetre-thick gold could be a far more effective source, said the researchers, who report their finding this week at the American Physical Society's Division of Plasma Physics Meeting in Dallas, South Carolina. Chen and her team used a short, ultra-intense laser to irradiate a millimetre-thick gold target. In the experimental set-up, the laser ionises and accelerates electrons, which are driven right through the gold target. On their way, the electrons interact with the gold nuclei, which serve as a catalyst to create positrons. Electron's opposite number The electrons give off packets of pure energy, which decay into matter and antimatter, following the predictions of Einstein's famous equation that relates matter and energy. By concentrating the energy in space and time, the laser produces positrons more rapidly and in greater density than ever before in the laboratory. Positrons are the antimatter equivalent to the electron, and behave in a similar way, though they have the opposite charge (see, New twist to matter-antimatter mystery, Cosmos Online). The researchers took advantage of this property to detect them, by using a typical device to detect electrons (a spectrometer) and equipping it to detect particles with opposite polarity as well. By creating this much antimatter, we can study in more detail whether antimatter really is just like matter, and perhaps gain more clues as to why the universe we see has more matter than antimatter, said LLNL team member Peter Beiersdorfer. We've entered a new era, Beiersdorfer added. Now, that we've looked for it, it's almost like it hit us right on the head. We envision a centre for antimatter research, using lasers as cheaper antimatter factories. Particles of antimatter are almost immediately annihilated by contact with normal matter, and converted to pure energy in the form of gamma rays. There is considerable speculation as to why the observable universe appears to be almost entirely matter, whether other universes could be almost entirely antimatter, and what might be possible if antimatter could be harnessed. Product of energetic celestial events Normal matter and antimatter are thought to have been in balance in the very early universe, but, due to a mysterious 'asymmetry', the antimatter decayed or was annihilated, and today very little remains. Over the years, physicists had theorised about antimatter, but it wasn't confirmed to exist experimentally until 1932. High-energy cosmic rays impacting Earth's atmosphere produce minute quantities of antimatter in the resulting jets, and physicists have learned to produce modest amounts of anti-matter using traditional particle accelerators and smaller laser set-ups in the lab. Antimatter may also
