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Title: Superconducting accelerator cavity with a heat affected zone having a higher RRR

Abstract

An improved method for welding accelerator cavities without the need for time consuming and expensive faying surface treatments comprising electron beam welding such cavities in a vacuum welding chamber within a vacuum envelope and using the following welding parameters: a beam voltage of between about 45 KV and 55 KV; a beam current between about 38 ma and 47 ma; a weld speed of about 15 cm/min; and a sharp focus and a rhombic raster of between about 9 KHz and 10 Khz. A welded cavity made according to the method of the present invention is also described.

Inventors:
 [1];  [2]
  1. Grafton, VA
  2. Hayes, VA
Issue Date:
Research Org.:
SOUTHEASTERN UNIV RESCH ASSN
OSTI Identifier:
873129
Patent Number(s):
6097153
Assignee:
Southeastern Universities Research Assn. ()
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
superconducting; accelerator; cavity; heat; affected; zone; rrr; improved; method; welding; cavities; time; consuming; expensive; faying; surface; treatments; comprising; electron; beam; vacuum; chamber; envelope; following; parameters; voltage; 45; kv; 55; current; 38; 47; weld; speed; 15; cm; sharp; focus; rhombic; raster; khz; 10; welded; according; described; beam welding; affected zone; beam current; improved method; electron beam; surface treatment; sharp focus; weld speed; heat affected; accelerator cavity; surface treatments; time consuming; /315/219/333/505/

Citation Formats

Brawley, John, and Phillips, H Lawrence. Superconducting accelerator cavity with a heat affected zone having a higher RRR. United States: N. p., 2000. Web.
Brawley, John, & Phillips, H Lawrence. Superconducting accelerator cavity with a heat affected zone having a higher RRR. United States.
Brawley, John, and Phillips, H Lawrence. Sat . "Superconducting accelerator cavity with a heat affected zone having a higher RRR". United States. https://www.osti.gov/servlets/purl/873129.
@article{osti_873129,
title = {Superconducting accelerator cavity with a heat affected zone having a higher RRR},
author = {Brawley, John and Phillips, H Lawrence},
abstractNote = {An improved method for welding accelerator cavities without the need for time consuming and expensive faying surface treatments comprising electron beam welding such cavities in a vacuum welding chamber within a vacuum envelope and using the following welding parameters: a beam voltage of between about 45 KV and 55 KV; a beam current between about 38 ma and 47 ma; a weld speed of about 15 cm/min; and a sharp focus and a rhombic raster of between about 9 KHz and 10 Khz. A welded cavity made according to the method of the present invention is also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}