Tune shifts caused by horizontal closed orbit deviations in sextupoles

PDF Version Also Available for Download.

Description

One of the uncomfortable features of the Chasman-Green lattice is that the chromaticity-correcting sextupoles are all very strong compared with those in the FODO-type lattice. Because of their strengths, when their arrangement creates certain harmonic components, the dynamic aperture is severely reduced and on is forced to add more sextupoles to eliminate harmful harmonic components.During the course of design studies, S. Kramer has made many computer runs to investigate tune shifts resulting from horizontal orbit deviations in sextupoles. An interesting observation is that the average tune shift is definitely related to the dependence of tunes on the betatron oscillation amplitudes ... continued below

Physical Description

11 p.

Creation Information

Ohnuma, S. February 1, 1988.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Author

Sponsor

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

One of the uncomfortable features of the Chasman-Green lattice is that the chromaticity-correcting sextupoles are all very strong compared with those in the FODO-type lattice. Because of their strengths, when their arrangement creates certain harmonic components, the dynamic aperture is severely reduced and on is forced to add more sextupoles to eliminate harmful harmonic components.During the course of design studies, S. Kramer has made many computer runs to investigate tune shifts resulting from horizontal orbit deviations in sextupoles. An interesting observation is that the average tune shift is definitely related to the dependence of tunes on the betatron oscillation amplitudes (or, equivalently, the transverse emittances). This note is an ``attempt`` to explain the connection at least qualitatively. It is no more than an attempt since the explanation is not yet quantitative and it may even be somewhat inconsistent.

Physical Description

11 p.

Notes

OSTI as DE96015118

Source

  • Other Information: PBD: Feb 1988

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Other: DE96015118
  • Report No.: LS--106(ANL)
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/377696 | External Link
  • Office of Scientific & Technical Information Report Number: 377696
  • Archival Resource Key: ark:/67531/metadc680442

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • February 1, 1988

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

Description Last Updated

  • Dec. 14, 2015, 6:36 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 6

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Ohnuma, S. Tune shifts caused by horizontal closed orbit deviations in sextupoles, report, February 1, 1988; Illinois. (digital.library.unt.edu/ark:/67531/metadc680442/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.