A prototype 7.5 MHz Finemet(Trademark) loaded RF cavity and 200kW amplifier for the Fermilab proton driver

PDF Version Also Available for Download.

Description

A 7.5 MHz RF cavity and power amplifier have been built and tested at Fermilab as part of the proton Driver Design Study. The project goal was to achieve the highest possible 7.5 MHz accelerating gradient at 15 Hz with a 50% duty cycle. To reduce beam loading effects, a low shunt impedance (500{Omega}) design was chosen. The 46 cm long single gap cavity uses 5 inductive cores, consisting of the nanocrystalline soft magnetic alloy Finemet, to achieve a peak accelerating voltage of 15 kV. The 95 cm OD tape wound cores have been cut in half to increase the ... continued below

Physical Description

431 Kilobytes pages

Creation Information

Dey, J.; Qian, Z. & Wildman, David W. July 9, 2001.

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. It has been viewed 11 times . More information about this article can be viewed below.

Who

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

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 article. Follow the links below to find similar items on the Digital Library.

Description

A 7.5 MHz RF cavity and power amplifier have been built and tested at Fermilab as part of the proton Driver Design Study. The project goal was to achieve the highest possible 7.5 MHz accelerating gradient at 15 Hz with a 50% duty cycle. To reduce beam loading effects, a low shunt impedance (500{Omega}) design was chosen. The 46 cm long single gap cavity uses 5 inductive cores, consisting of the nanocrystalline soft magnetic alloy Finemet, to achieve a peak accelerating voltage of 15 kV. The 95 cm OD tape wound cores have been cut in half to increase the cavity Q and are cooled from both sides using large water-cooled copper heat sinks. The prototype cavity has a shunt impedance of 550{Omega}, Q = 11, and is powered by a 200 kW cw cathode driven tetrode amplifier. Both cavity and amplifier designs are described. Results from recent cavity tests coalescing beam in the Fermilab Main Injector is also presented.

Physical Description

431 Kilobytes pages

Source

  • Particle Accelerator Conference, Chicago, IL (US), 06/18/2001--06/22/2001

Language

Item Type

Identifier

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

  • Report No.: FERMILAB-Conf-01/114-E
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 782740
  • Archival Resource Key: ark:/67531/metadc716148

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.

What responsibilities do I have when using this article?

When

Dates and time periods associated with this article.

Creation Date

  • July 9, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

Description Last Updated

  • April 1, 2016, 4:40 p.m.

Usage Statistics

When was this article last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 11

Interact With This Article

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Dey, J.; Qian, Z. & Wildman, David W. A prototype 7.5 MHz Finemet(Trademark) loaded RF cavity and 200kW amplifier for the Fermilab proton driver, article, July 9, 2001; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc716148/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.