Channeling   updated October 25, 2007  carrigan@fnal.gov (subject line must be sensible)

Channeling Formulary


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Channeling at Fermilab

Crystal channeling work was started at Fermilab in 1976 by Dick Carrigan. Originally the hope was that the Angstrom feature size could be used to measure very short-lived particle lifetimes. This was soon abandoned and the work shifted to exploring the practical problems with channeling at multi-hundred GeV. In the process, our collaborator, Edic Tsyganov then of Dubna, came up with the idea of bent crystal channeling. That led to a low energy demonstration at Dubna, use for extraction at Dubna and Serpukhov, development of a theory of bent crystal channeling by our collaborator, Jim Ellison of the University of New Mexico, and extensive exploration of that theory at Fermilab.  Channeling at Fermilab  summarizes the work in five major areas.

Other channeling sites

Serpukhov site - IHEP (Russia)
    This contains a good list of  many channeling pages at web links

CARE channeling collimation at CERN

(See general CARE site for more information on CARE program.)


Special channeling topics

Crystal collimation

This topic is now extremely interesting because of LHC requirements as well as fundamentals of channeling.

Negative bending?

Volume reflection and capture

Relates to effect observed at RHIC and Fermilab that may have significant impact on channeling collimation.


Recent and future channeling  meetings

Relativistic Channeling and related coherent phenomena Frascati, Mar. 23-26, 2004

Crystal collimation in hadron storage rings  CERN, March  7-8, 2005

Relativistic channeling 05  Frascati, Jul. 25 - Jul. 28, 2005

CARE crystal channeling workshop CERN, March 9 - 10, 2006

Channeling 2006  Frascati, July 3 - July 7, 2006 contact dabagov@lnf.infn.it