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

Brawley, John; Phillips, H Lawrence

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

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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:

Brawley, John ^[1]; Phillips, H Lawrence ^[2]

Grafton, VA
Hayes, VA

Issue Date:: 2000-01-01

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

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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
Y10S505/866 - Wave transmission line, network, waveguide, or microwave storage device

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
H05H7/20 - with superconductive walls

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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. 
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                    Brawley, John, & Phillips, H Lawrence. Superconducting accelerator cavity with a heat affected zone having a higher RRR.  United States.

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                    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.

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@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}

}

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