Electron Injector Studies at LBL

PDF Version Also Available for Download.

Description

Two recent LBL design studies, (1) an rf gun with a laser driven photocathode, (2) and a conventional thermionic gun with three stages of bunching, are summarized and compared. The rf gun was designed as a possible injector to a 1 GeV test experiment consisting of a high gradient rf structure and a relativistic klystron. The rf gun cavity had (1/2 + 2) cells. Analytic calculations and computer simulations suggest that emittance growth was mainly caused by space-charge effects and the rf fringe field effects at the exit of the last cell. Emittance growth was found to be strongly dependent ... continued below

Creation Information

Kim, C.H. June 1, 1990.

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

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

Two recent LBL design studies, (1) an rf gun with a laser driven photocathode, (2) and a conventional thermionic gun with three stages of bunching, are summarized and compared. The rf gun was designed as a possible injector to a 1 GeV test experiment consisting of a high gradient rf structure and a relativistic klystron. The rf gun cavity had (1/2 + 2) cells. Analytic calculations and computer simulations suggest that emittance growth was mainly caused by space-charge effects and the rf fringe field effects at the exit of the last cell. Emittance growth was found to be strongly dependent on the size and the length of the pulse. The conventional gun is being considered as an injector for the proposed Infra-Red-Free-Electron-Laser (IRFEL) facility. In order to reduce the space charge effects the final bunching is done in a tapered L-band tank where acceleration and bunching occur at the same time. Beam emittance of a conventional gun was measured at the ALS gun-test-stand and found to be satisfactory for the IRFEL application.

Language

Item Type

Identifier

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

  • Report No.: LBL-29227
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.2172/1001082 | External Link
  • Office of Scientific & Technical Information Report Number: 1001082
  • Archival Resource Key: ark:/67531/metadc833062

Collections

This report 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.

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • June 1, 1990

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

Description Last Updated

  • June 15, 2016, 7:07 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 2

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Kim, C.H. Electron Injector Studies at LBL, report, June 1, 1990; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc833062/: accessed December 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.