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From: waddingt@umn-cs.UUCP (Jake Waddington )
Newsgroups: net.physics,net.sci
Subject: Re: Particle Accelerators/ Cosmic Rays
Message-ID: <883@umn-cs.UUCP>
Date: Tue, 11-Feb-86 23:50:22 EST
Article-I.D.: umn-cs.883
Posted: Tue Feb 11 23:50:22 1986
Date-Received: Fri, 14-Feb-86 03:16:22 EST
References: <572@hounx.UUCP> <139@epimass.UUCP> <11782@ucbvax.BERKELEY.EDU>
Reply-To: waddingt@umn-cs.UUCP (Paul Fink )
Organization: Computer Science Dept., U of Minn, Mpls, MN
Lines: 29
Xref: watmath net.physics:3856 net.sci:529
Summary: 

In article <11782@ucbvax.BERKELEY.EDU> desj@brahms.UUCP (David desJardins) writes:
>
>   If this, (cosmic rays have higher energy than ever been produced on earth), 
	is really true why don't we build orbiting detectors and wait
>for cosmic rays to strike their targets at these extremely high energies?
>Is the density of cosmic rays too low to make this practical?
>   Sounds a lot cheaper than $1E10 for the SSC!
>
> -- David desJardins


We do! We do!
	Yes, the flux is a problem but much of the earlyer work in high energy
particle physics was done with cosmic rays. There are now at least two U.S.
experiments in orbit looking at the "heavy Ions" which are in the same range as
what the SSC will do. One problem as I understand it is that their is little
accelerator time set a side for use with ion beams thus Cosimc Rays are still
an important source of basic particle physic research. Also note the on going
discussion about Cignus-X, or however you spell that. The radiation, cosmic
rays, coming from Cignus are teaching us some new physics, or so it seams.

By the way we still need the SSC for controlled experiments.


	Paul Fink
	U of MN Cosmic Ray Lab
	ihnp4!umn-cs!waddingt 
	  or all the way to where it is being done at:
	ihnp4!umn-cs!umn-phys!fink