breakdowns at 352 mhz n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Breakdowns at 352 MHz PowerPoint Presentation
Download Presentation
Breakdowns at 352 MHz

Loading in 2 Seconds...

play fullscreen
1 / 22

Breakdowns at 352 MHz - PowerPoint PPT Presentation


  • 75 Views
  • Uploaded on

Breakdowns at 352 MHz. Rolf Wegner. Results: no substantial results no measurements of BDR Aim: exchange of ideas work together * 352 MHz cavity + test stand * no automated conditioning system * no measurement system for BDR. Outline. Motivation SPL / Linac4 CCDTL prototype

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Breakdowns at 352 MHz' - talia


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
breakdowns at 352 mhz

Breakdowns at 352 MHz

Rolf Wegner

Rolf Wegner Breakdowns at 352 MHz

slide2
Results:
  • no substantial results
  • no measurements of BDR

Aim:

  • exchange of ideas
  • work together* 352 MHz cavity + test stand

* no automated conditioning system* no measurement system for BDR

Rolf Wegner Breakdowns at 352 MHz

outline
Outline
  • Motivation
  • SPL / Linac4
  • CCDTL prototype
  • PIMS prototype
  • Discussion

Rolf Wegner Breakdowns at 352 MHz

motivation
Motivation
  • high power test of CCDTL,
      • f0= 352 MHz, standing wave cavitytp= 0.5 ms (176’000 cycles, ~ 10*QL)frep= 1..50 Hzcondition 1 week, operation 1 week, BDR < 10-5
      • tp= 1.0 ms ==> many breakdowns, 1 day conditioning
      • tp= 2.0 ms ==> many breakdowns
  • CLIC workshop: E ~ tp-1/6(BDR=const.)

Rolf Wegner Breakdowns at 352 MHz

spl linac4
SPL / Linac4

Rolf Wegner Breakdowns at 352 MHz

spl linac41
SPL / Linac4

Rolf Wegner Breakdowns at 352 MHz

spl linac42
SPL / Linac4

Rolf Wegner Breakdowns at 352 MHz

ccdtl prototype
CCDTL prototype

Rolf Wegner Breakdowns at 352 MHz

ccdtl prototype1
CCDTL prototype

Rolf Wegner Breakdowns at 352 MHz

ccdtl prototype2
CCDTL prototype

f0 = 352.2 MHz

Pd = 170 kW (1 tank)

Wstored = 2.7 J (1 tank)

Q0,m = 38000

r/Q = 364 Ω

ZT2 = 42 MΩ/m

E0 = 3.8 MV/m

Emax = 30 MV/m (1.7 Kilp.)

Hmax = 17 kA/m

Scmax = 22 kW/mm2

Max(|H|)17 kA/m

Max(Sc)22 kW/mm2

Max(|E|) 30 MV/m

Rolf Wegner Breakdowns at 352 MHz

kilpatrick
Kilpatrick

f = 1.643 Ek2 * exp(-8.5/Ek) [f in MHz, Ek in MV/m]

Rolf Wegner Breakdowns at 352 MHz

ccdtl prototype3
CCDTL prototype

Rolf Wegner Breakdowns at 352 MHz

ccdtl prototype4
CCDTL prototype

Rolf Wegner Breakdowns at 352 MHz

pims prototype
PIMS prototype

Rolf Wegner Breakdowns at 352 MHz

pims prototype1
PIMS prototype

f0 = 352.2 MHz

Pd = 110 kW (1 cell)

Wstored = 1.6J (1 cell)

Q0,m = 23000

r/Q = 143 Ω

ZT2 = 33 MΩ/m

E0 = 4.0 MV/m

Emax = 33 MV/m (1.8 Kilp.)

Hmax = 11 kA/m

Scmax = 18 kW/mm2

Max(|H|)11 kA/m

Max(Sc)18 kW/mm2

Max(|E|) 33 MV/m

Rolf Wegner Breakdowns at 352 MHz

pims prototype2
PIMS prototype

Rolf Wegner Breakdowns at 352 MHz

pims prototype3
PIMS prototype

Rolf Wegner Breakdowns at 352 MHz

discussion
discussion

Sc ~ 20 kW/mm2, tp = 1 ms

scaling tp0 = 100 ns

Rolf Wegner Breakdowns at 352 MHz

discussion1
discussion

Sc ~ 20 kW/mm2, tp = 2 ms

scaling tp0 = 100 ns

Rolf Wegner Breakdowns at 352 MHz