🚀 go-pugleaf

In article <1992Apr15.114716.1@sscvx1.ssc.gov> draper@sscvx1.ssc.gov writes:
>
>I saw an answer posted about bremsstrahlung, which does pertain but isn't
>exactly to the point.    ....     

Mea culpa. 

Proton machines are never really bremsstrahlung limited, but electron 
machines are always limited by radiation.  The mass factor is huge.  
(It has been too long since I did that computation!)  That is why, as 
Draper points out, work on proton machines centers on magnet development 
while electron people are thinking about two linacs pointed at each other 
with novel acceleration technologies used also.  

So if the question is "why can't I do e+ e- and make toponium", the 
answer is bremsstrahlung, but if it is "why is the SSC so big", the 
answer is magnets.  And magnets tend to be limited by material properties, 
if that is your next question! 

--
J. A. Carr                                    |  "The New Frontier of which I  
jac@gw.scri.fsu.edu                           |  speak is not a set of promises
Florida State University  B-186               |  -- it is a set of challenges."
Supercomputer Computations Research Institute |   John F. Kennedy (15 July 60)