X-Message-Number: 19556 From: Date: Thu, 18 Jul 2002 10:53:52 EDT Subject: Re: CryoNet #1949 Intensity Interferometer --part1_30.29f15fd7.2a683080_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Brett, you said about my idea to produce an intensity interferometer: > > The astronomical work sounds facinating, to be sure, but aside from a bit > of > practice at making a working interferometer, I'm unclear as to how it > places > in your hands all the elements to make a phonon brain reader. All the > principles may be transferable, and some of the skills, maybe even some > electronics and software, but you're hardly going to be able to use 2 meter > optical telescopes to do phonon interferometery of a brain. > > What am I missing here? > > Brett Bellmore > In the interferometer there are three parts: 1/ The detector : In the astronomical instrument, this include a telescope set and photometers, in the phonon system it is a quantum level sound detector, may be itself an optical interferometer! 2/ The electronics able to handle the data flow, this include powerful computers and data storrage. This is common to the astronomical and phonon instrument. 3/ The Software to sort out all these informations and reconstruct a picture. The astronomical one is two dimensional, the phonon generated is 3-dim. The first may be implemented so that checking some boxes on a screen may flip the software from 2 to 3 dim. When the astronomical instrument is built and run, both the elctronics and computer parts would be ready to be used in a phonon machine. Even more: the system used in the focal plane of a telescope to position up to 1 000 optical fibers could be used for moving the phonon detectors above a patient head. So, only the phonon detectors need to be pluged into the system. The most interesting part in that project is: Can we find the money to make it a reality? The state of affairs are as follow: I have nearly completed the workshop for making 40" telescopes, this is sufficient for starting the first step, the asteroid ocultation project. Users will be asked for software contribution, not money. May be the astronomical observations will came with a computer course! The largest part of the 2m instrument workshop, the spin cast kiln, is paid by a friend with the money. There is a standing offert by some professional astronomers to pay for the electronics of a planetar (lonely planet) detector. This electronics is the same as the one of an imaging intensity interferometer. So, only phonon detectors are not budgetet to this day. I think the micro-mirrors arrays sold by Texas Instruments for video projectors could be used as phonon detectors. They would have to be included in a Michelson interferometer with a photodiode as output signal converter. I think this is not the most difficult part of the instrument. As I have said before, if there was no financial constrains, it would be best to target from start the phonon instrument. I can't do that, but if someone else can, it would be very good. I think this system must be built, I'll try to do it, I must start with my ressources and actual position. I don't want particularly to do that and would be happy if someone else in a better position could take that task... Yvan Bozzonetti. --part1_30.29f15fd7.2a683080_boundary Content-Type: text/html; charset="US-ASCII" [ AUTOMATICALLY SKIPPING HTML ENCODING! ] Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=19556