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Title: The MUCOOL RF Program

Abstract

Efficient muon cooling requires high RF gradients in the presence of high (3T) solenoidal fields. The Muon Ionization Cooling Experiment (MICE) also requires that the x-ray production from these cavities is low, in order to minimize backgrounds in the particle detectors that must be located near the cavities. These cavities require thin Be windows to ensure the highest fields on the beam axis. In order to develop these cavities, the MUCOOL RF Program was started about 6 years ago. Initial measurements were made on a six-cell cavity and a single-cell pillbox, both operating at 805 MHz. We have now begun measurements of a 201 MHz pillbox cavity. This program has led to new techniques to look at dark currents, a new model for breakdown and a general model of cavity performance based on surface damage. The experimental program includes studies of thin Be windows, conditioning, dark current production from different materials, magnetic-field effects and breakdown.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
897175
Report Number(s):
FERMILAB-CONF-06-387-AD
TRN: US200706%%423
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: Contributed to European Particle Accelerator Conference (EPAC 06), Edinburgh, Scotland, 26-30 Jun 2006
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; BREAKDOWN; CAVITIES; IONIZATION; MICE; MUONS; PERFORMANCE; PRODUCTION; WINDOWS; Accelerators

Citation Formats

Norem, J, /Argonne, Bross, A, Moretti, A, Norris, B, Qian, Z, /Fermilab, Torun, Y, /IIT, Chicago, Rimmer, R, /Jefferson Lab, Li, D, Virostek, S, Zisman, M, /LBL,Berkeley, Sandstrom, R, and /Geneva U. The MUCOOL RF Program. United States: N. p., 2006. Web.
Norem, J, /Argonne, Bross, A, Moretti, A, Norris, B, Qian, Z, /Fermilab, Torun, Y, /IIT, Chicago, Rimmer, R, /Jefferson Lab, Li, D, Virostek, S, Zisman, M, /LBL,Berkeley, Sandstrom, R, & /Geneva U. The MUCOOL RF Program. United States.
Norem, J, /Argonne, Bross, A, Moretti, A, Norris, B, Qian, Z, /Fermilab, Torun, Y, /IIT, Chicago, Rimmer, R, /Jefferson Lab, Li, D, Virostek, S, Zisman, M, /LBL,Berkeley, Sandstrom, R, and /Geneva U. 2006. "The MUCOOL RF Program". United States. https://www.osti.gov/servlets/purl/897175.
@article{osti_897175,
title = {The MUCOOL RF Program},
author = {Norem, J and /Argonne and Bross, A and Moretti, A and Norris, B and Qian, Z and /Fermilab and Torun, Y and /IIT, Chicago and Rimmer, R and /Jefferson Lab and Li, D and Virostek, S and Zisman, M and /LBL,Berkeley and Sandstrom, R and /Geneva U.},
abstractNote = {Efficient muon cooling requires high RF gradients in the presence of high (3T) solenoidal fields. The Muon Ionization Cooling Experiment (MICE) also requires that the x-ray production from these cavities is low, in order to minimize backgrounds in the particle detectors that must be located near the cavities. These cavities require thin Be windows to ensure the highest fields on the beam axis. In order to develop these cavities, the MUCOOL RF Program was started about 6 years ago. Initial measurements were made on a six-cell cavity and a single-cell pillbox, both operating at 805 MHz. We have now begun measurements of a 201 MHz pillbox cavity. This program has led to new techniques to look at dark currents, a new model for breakdown and a general model of cavity performance based on surface damage. The experimental program includes studies of thin Be windows, conditioning, dark current production from different materials, magnetic-field effects and breakdown.},
doi = {},
url = {https://www.osti.gov/biblio/897175}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jun 26 00:00:00 EDT 2006},
month = {Mon Jun 26 00:00:00 EDT 2006}
}

Conference:
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