Achieving 800kW CW Beam Power and Continuing Energy Improvements in CEBAF

Thumbnail image of item number 1 in: 'Achieving 800kW CW Beam Power and Continuing Energy Improvements in CEBAF'.
Thumbnail image of item number 2 in: 'Achieving 800kW CW Beam Power and Continuing Energy Improvements in CEBAF'.
Thumbnail image of item number 3 in: 'Achieving 800kW CW Beam Power and Continuing Energy Improvements in CEBAF'.

PDF Version Also Available for Download.

Description

During the past year, CEBAF at Jefferson Lab has demonstrated its full capacity of sustained 800 kW beam power. All systems performed as intended. The energy stability at the design parameters of 4.0 GeV, 200 muA CW beam was measured to be better than 3x10{sup -5} rms. During the fall of 1997, physics experiments were conducted using 4.4 GeV beam. Having demonstrated the benefits of in situ helium/rf processing of SRF cavities for increasing the energy reach of CEBAF, we began a program of processing all installed cryomodules. This processing has proven effective against the principal gradiation limitation of the ... continued below

Physical Description

55 Kilobytes pages

Creation Information

Reece, Charlie December 1, 1998.

Context

This article 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 article can be viewed below.

Who

People and organizations associated with either the creation of this article 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.

About | Browse this Partner

Contact Us

Corrections Questions

What

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

Description

During the past year, CEBAF at Jefferson Lab has demonstrated its full capacity of sustained 800 kW beam power. All systems performed as intended. The energy stability at the design parameters of 4.0 GeV, 200 muA CW beam was measured to be better than 3x10{sup -5} rms. During the fall of 1997, physics experiments were conducted using 4.4 GeV beam. Having demonstrated the benefits of in situ helium/rf processing of SRF cavities for increasing the energy reach of CEBAF, we began a program of processing all installed cryomodules. This processing has proven effective against the principal gradiation limitation of the SRF cavities in CEBAF: discharges at the cold rf waveguide window, induced by electron field emission in the cavities. Such effects limit approximately half of the cavities. Regular operation at 5.0 GeV is just beginning, and preparations are underway to support 5.5 GeV in early 1999.

Physical Description

55 Kilobytes pages

Source

  • 1998 Linear Accelerator Conference, Chicago, IL (US), 08/24/1998--08/28/1998

Language

Item Type

Identifier

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

  • Report No.: DOE/ER/40150-1245
  • Report No.: JLAB-ACO-98-03
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 754296
  • Archival Resource Key: ark:/67531/metadc710113

Collections

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

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

About | Browse this Collection

What responsibilities do I have when using this article?

Digital Files

When

Dates and time periods associated with this article.

Creation Date

  • December 1, 1998

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

Description Last Updated

  • Feb. 5, 2016, 7:49 p.m.

Usage Statistics

When was this article last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 3
More Statistics

Interact With This Article

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'Achieving 800kW CW Beam Power and Continuing Energy Improvements in CEBAF'.
Thumbnail image of item number 2 in: 'Achieving 800kW CW Beam Power and Continuing Energy Improvements in CEBAF'.
Thumbnail image of item number 3 in: 'Achieving 800kW CW Beam Power and Continuing Energy Improvements in CEBAF'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Reece, Charlie. Achieving 800kW CW Beam Power and Continuing Energy Improvements in CEBAF, article, December 1, 1998; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc710113/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.