Search found 4 matches

by gzhsyw
25 Dec 2012, 17:42
Forum: Momentum Aperture
Topic: local momentum aperture search: 5D vs 6D
Replies: 3
Views: 12554

Re: local momentum aperture search: 5D vs 6D

Here is my 6D result.

Thank you.
Zhenghao Gu
by gzhsyw
25 Dec 2012, 17:40
Forum: Momentum Aperture
Topic: local momentum aperture search: 5D vs 6D
Replies: 3
Views: 12554

local momentum aperture search: 5D vs 6D

Dear Michael, I have run the local momentum aperture searches with 5D (without rf cavity and radiation) and 6D (with rf cavity and radiation). My understanding is that if the height of rf bucket is large enough, rf cavity will not affect the result much. But my 6D result is much worse. Can you help ...
by gzhsyw
30 Aug 2012, 21:04
Forum: Ring Tracking
Topic: tunes from fma and twiss differ
Replies: 3
Views: 1915

Re: tunes from fma and twiss differ

Thank you so much. This answers the puzzle that I had since long time ago. Another question that I came up with is that in frequency map analysis, the particles near x=0 or y=0 usually behave strangely. Here are two graphs. In the graph of diffusion, the diffusion of the particle near the origin is ...
by gzhsyw
31 Jul 2012, 00:30
Forum: Ring Tracking
Topic: tunes from fma and twiss differ
Replies: 3
Views: 1915

tunes from fma and twiss differ

nux.jpg Dear Michael, I used frequency map analysis to calculate the tunes and diffusion. But I noticed the tunes from fma are different from those from twiss parameter, even if I looked into the particle near zero offset. (Also I noticed the algorithm seems not to calculate the tunes at the origin...