MPY Seminar 10-Oct-95

At present only 6 of 30 pages are available via WWW.   For a complete copy 
of all transparencies please use B. Parker's comment form or send email to
parker@vxdesy.desy.de.

                                                           10 October 1995

                      HERA Machine Physics Weekly Seminar

                  HERA Performance Gains via Optics Trickery:
                      Are the prospects real or imaginary?


                                 presented by
                              Brett Parker / MHE
                                    DESY

 A semi-exhaustive study is presented of some possibilities for optics changes in
 PETRA toward achieving the following goals: shortening the bunches injected into
 HERAp & thereby decreasing the number of "satellite" protons, increasing the
 effective aperture of the HERAp transfer line and mitigating anomalous emittance
 growth during the PETRA ramp. With 29 independent knobs (i.e. independent
 quadrupole circuits) a wide variety of ring optics solutions are found to be
 possible. While no "magic fixes" have been uncovered, a series of options are
 presented here that do seem to hold the promise of a non-trivial improvement in
 overall HERA performance.

1. Title Page (same as above) [Gif]
2. Background Information [Gif]
3. Goals [Gif]
4. Fitting [Gif]
5. Compromise Solution [Gif]
6. Summary [Gif]

Last Update: 24 November 1995