skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Static Magnetic Properties of AL800 Garnet Material

Abstract

A second harmonic tunable RF cavity is being devel-oped for the Fermilab Booster. This device, which prom-ises reduction of the particle beam loss at the injection, transition, and extraction stages, employs perpendicularly biased garnet material for frequency tuning. The required range of the tuning is significantly wider than in previously built and tested tunable RF devices. As a result, the mag-netic field in the garnet comes fairly close to the gyromag-netic resonance line at the lower end of the frequency range. The chosen design concept of a tuner for the cavity cannot ensure uniform magnetic field in the garnet mate-rial; thus, it is important to know the static magnetic prop-erties of the material to avoid significant increase in the lo-cal RF loss power density. This report summarizes studies performed at Fermilab to understand variations in the mag-netic properties of the AL800 garnet material used to build the tuner of the cavity.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Fermilab
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
PIP
OSTI Identifier:
1366524
Report Number(s):
FERMILAB-CONF-17-165-AD-TD
1607488
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Kuharik, J., Madrak, R., Makarov, A., Pellico, W., Sun, S., Tan, C. Y., and Terechkine, I. Static Magnetic Properties of AL800 Garnet Material. United States: N. p., 2017. Web.
Kuharik, J., Madrak, R., Makarov, A., Pellico, W., Sun, S., Tan, C. Y., & Terechkine, I. Static Magnetic Properties of AL800 Garnet Material. United States.
Kuharik, J., Madrak, R., Makarov, A., Pellico, W., Sun, S., Tan, C. Y., and Terechkine, I. Wed . "Static Magnetic Properties of AL800 Garnet Material". United States. doi:. https://www.osti.gov/servlets/purl/1366524.
@article{osti_1366524,
title = {Static Magnetic Properties of AL800 Garnet Material},
author = {Kuharik, J. and Madrak, R. and Makarov, A. and Pellico, W. and Sun, S. and Tan, C. Y. and Terechkine, I.},
abstractNote = {A second harmonic tunable RF cavity is being devel-oped for the Fermilab Booster. This device, which prom-ises reduction of the particle beam loss at the injection, transition, and extraction stages, employs perpendicularly biased garnet material for frequency tuning. The required range of the tuning is significantly wider than in previously built and tested tunable RF devices. As a result, the mag-netic field in the garnet comes fairly close to the gyromag-netic resonance line at the lower end of the frequency range. The chosen design concept of a tuner for the cavity cannot ensure uniform magnetic field in the garnet mate-rial; thus, it is important to know the static magnetic prop-erties of the material to avoid significant increase in the lo-cal RF loss power density. This report summarizes studies performed at Fermilab to understand variations in the mag-netic properties of the AL800 garnet material used to build the tuner of the cavity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed May 17 00:00:00 EDT 2017},
month = {Wed May 17 00:00:00 EDT 2017}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: