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To: AndrewC
I'm not addressing anything about the theory that this thread is based on, but EMF is the force used in particle accelerators(protons and neutrons).

Um, no.

The electromagnetic force can be used to accelerate protons, but it doesn't work on neutrons. That's cuz they aren't charged, you see. And I do know about this, because I am a particle physicist.

One thing really puzzles me about the ID theory: why do so many Christians seem to like it despite the fact that ID theory directly conflicts with the Bible? I suppose I can understand that a sufficiently twisted version of evolution could be interpreted to conflict with the Christian account of Creation, but since ID is entirely based upon a premise that is completely contrary to Christian theology, I can't see any way to reconcile the two.

Oh, BTW: in addition to being a particle physicist, I am also a Christian.

67 posted on 06/19/2005 12:36:13 AM PDT by fizzymagic
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To: fizzymagic
Um, no. The electromagnetic force can be used to accelerate protons, but it doesn't work on neutrons.

Yes/no in that

The EMF is used to accelerate the protons which then are used to produce the neutrons.

Message:

Hello Tim,

You're right! Our usual particle machinery cannot accelerate neutrons and other neutral particles. However, we can create neutrons which are traveling very fast.

The best way to do this is via something called "spallation". Basically, when a high-energy proton (protons are charged, and easy to accelerate!) crashes into a nucleus, it will knock out a big spray of neutrons, protons, nuclear fragments, pions, muons, etc., all mixed together and traveling forward (in the same direction as the original proton) at high speed. (The verb "to spall" means "to split or chip; to detach small pieces")

Spallation isn't very useful unless you can sort out the neutrons from the rest of the spray. Fortunately this isn't too difficult. To sort out charged particles, pass the spallation products through a large magnetic field; charged particles will be deflected. You don't need to worry about other neutral particles (pions, lambdas, whatever) since they tend to decay within millimeters of the collision. The only thing in your "beam" a few meters away are the neutrons.

Also Weapons Neutron Research facility

Welcome to WNR

At WNR, high-energy neutrons and protons are used for basic and applied research in neutron nuclear science and weapons-related measurements. WNR consists of two target areas and their associated flight paths. Target 2, or the Blue Room, consists of a low-background room with seven flight paths that can exploit the variable-energy feature of the linac using proton beams from 250 to 800 MeV. Target 4, the most intense high-energy neutron source in the world, consists of an unmoderated neutron production target with six flight paths ranging from 10 to 90 m at angles of 15º to 90º with respect to the proton beam. The time structure of the proton beam can be modified to produce neutron pulses with different spacings for particular experiments.

69 posted on 06/19/2005 1:13:28 AM PDT by AndrewC (Darwinian logic -- It is just-so if it is just-so)
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