Beams Document 1776-v2

DocDB Home ]  [ Search ] [ Last 20 Days ] [ List Authors ] [ List Topics ] [ List Events ]

Stability of Barrier Buckets with Small or Zero RF-Barrier Separations

Document #:
Document type:
Submitted by:
Kingyuen B. Ng
Updated by:
Kingyuen B. Ng
Document Created:
07 Apr 2005, 17:21
Contents Revised:
21 Apr 2005, 09:52
Metadata Revised:
21 Apr 2005, 09:52
Viewable by:
  • Public document
Modifiable by:

Quick Links:
Latest Version

Other Versions:
26 Apr 2005, 10:13
25 Apr 2005, 16:32
08 Apr 2005, 14:10
A barrier bucket with very small separation between the rf barriers (relative to the barrier widths) or even zero separation has its synchrotron tune decreasing rather slowly
from a large value towards the boundary of the bucket. As a result, large area at the bucket edges can become unstable under the modulation of rf voltage and/or rf phase. In addition, chaotic regions may form near the bucket center and extend outward under increasing modulation. Application
is made to those barrier buckets used in the process of momentum mining at the Fermilab Recycler Ring.

Files in Document:
Notes and Changes:
A newer and better version
Publication Information:
Fermilab Report FERMILAB-TM-2302-AD
DocDB Home ]  [ Search ] [ Last 20 Days ] [ List Authors ] [ List Topics ] [ List Events ]

DocDB Version 8.8.9, contact Beams Document Database Administrators