X-Message-Number: 18903 From: Date: Mon, 8 Apr 2002 12:37:55 EDT Subject: Brain reading with magic mirrors --part1_20.26dbbf29.29e32163_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Brain reader: Pumping the X-ray laser. The more challenging element of a brain reader is the X-ray laser. When nuclear explosions and big particle accelerators are not at hand, only entangled photons may be used. Ordinary lasers produce their radiation in the optical or infra-red part of the spectrum. This is the .1 to 3 electron-volt energy range (one eV is the energy gained by an electron accelerated by a potential difference of one volt). To pump a laser, we must excite the radiation producing element (atom or nucleus) with an energy larger than the one radiated. In a typical case, the atom is excited to a unstable level, this one decay to a meta-stable level and the laser radiation is produced by the decay of the meta-stable level to the ground state. To produce an X-ray laser, the exciting energy may well be in the mega eV (MeV). The source of the problem is that to get long wave packets for a Quantum Non-Demolition interferometer, many entangled X-ray photons must be radiated at the same time by the source. For example, we could pump a nucleus with on MeV, the unstable energy level would decay to a 512 KeV meta-stable level (nearly half the energy is lost here) and then a multi-mode laser produces 64 X-ray photons, each with 8 KeV energy. At the exit we recover 64 X-ray beams in a sea urchin geometry. To pump Mev scale energy with eV scale photons, ask for an entangled system with up to one million light photons. At most, dye lasers may have an output with 200 to 1 000 entangled photons, Non-linear crystals may down convert a single photon into two entangled ones, each with half the energy of the original one. One solution is then to use a dye laser, put a down converter on each of the 1000 or so exit beams to get 2000 beams and then on each one to put a second stage dye laser working in amplifier mode. The exit contains 2000 000 beams, they must be redirected to a single target point: the X-ray laser. The second solution is to have 1000 optical dye lasers in parallel, take one beam of each and combine it in a up converter with one beam from the next laser. All photons are then entangled for all lasers. The third solution is a new one: It bypass the dye laser stage (they must be pumped by another laser and are very inefficient, at most 0.2 percent of the pumping energy is recovered at the exit).The idea is to send a beam of independent photons between two near parallel flat mirrors. at the entry, the distance between mirrors is near one wavelength, or half a micrometer for optical photons. The gap then narrow to well under the wavelength. If this exit gap is (1/n) wavelength wide, then n photons will be entangled. At most, with atom scale mirror polishing, one thousand photons could be entangled. given that technological requirement and performance limitation, I had not taken that option into account two years ago. The new idea is to use holographic mirrors. These are built as an interference picture inside a photographic emulsion Interferometric systems may define dimensions without limits, the atomic scale here is irrelevant. An interferometer one million wavelength long can ?see? a length one millionth of a wavelength long, even if that is beyond atomic scale. Because the width between the two mirrors is perpendicular to the photon path, if we want to define that width at the millionth of wavelength level, we must have an hologram one million wavelength thick. This is half a meter or so in the optical range. At first, photographic slides half a meter thick is not common stuff. Such srange ?slides? have nevertheless been produced and used for many years in the cosmic rays detection domain. The know how to produce them in an amateur-like environment is well established and readily available. Common lasers have a coherence length - the length for witch they can produce unbroken interferences- near one meter. So, they can on a to and fro travel, produce an interference picture half a meter thick. The idea is then to make a flat mercury mirror and take two holograms of it in the same ?photographic jelly?. The mirror defects will be reproduced in the two pictures, so that a bump in one hologram will be matched by an identical one in the second. That system must allows to entangle up to one million light photons, giving a total energy on the target nucleus near 3 MeV. As a side bonus, such a laser system would readily start a thermonuclear reaction on a fusion target, without any fission bomb. It is then a mere staging process to get any requested power. On a non fusion target it could bring together two or more heavy nucleus so that their electric field would form degenerate electronic orbits: The field would extract electrons from empty space and reject positons (anti-matter electrons). That would form multi-nucleus atoms, a basic form of degenerate matter found inside white dwarf stars. The atomic numbers seems, from calculations escalate up to something as 1500 (92 only for uranium). This is nearly alchemy, a strange by-product of brain reading technology :-). Yvan Bozzonetti. --part1_20.26dbbf29.29e32163_boundary Content-Type: text/html; charset="US-ASCII" [ AUTOMATICALLY SKIPPING HTML ENCODING! ] Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=18903