td24 r05 n1 after high power test analysis plans n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
TD24 R05 N1 after high-power test analysis plans PowerPoint Presentation
Download Presentation
TD24 R05 N1 after high-power test analysis plans

Loading in 2 Seconds...

play fullscreen
1 / 20

TD24 R05 N1 after high-power test analysis plans - PowerPoint PPT Presentation


  • 89 Views
  • Uploaded on

TD24 R05 N1 after high-power test analysis plans. A. Degiovanni, M. Aicheler, N. Mouriz Irazabal, A.T. Perez Fontenla, R. Wegner CLIC RF Structure Development Meeting 23/04/2014. Outline. History of the structure: EDMS : 1258457 – traveller of structure

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 'TD24 R05 N1 after high-power test analysis plans' - prema


Download Now 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
td24 r05 n1 after high power test analysis plans

TD24 R05 N1 after high-power test analysis plans

A. Degiovanni,

M. Aicheler, N. Mouriz Irazabal, A.T. Perez Fontenla, R. Wegner

CLIC RF Structure Development Meeting

23/04/2014

outline
Outline
  • History of the structure:
    • EDMS: 1258457 – traveller of structure
    • EDMS: 1239394 – RF tuning (22-24.08.2012, Vasim+Rolf)
    • EDMS: 1306038 – post high power operation analysis
  • Observations:
    • detuning of coupling cells (last cell frequency decrease, opposite to T(D)18)
    • hot cell developed during high power operations ( Wilfrid’s analysis)
  • What needs to be done?
    • metrology measurements (for better understanding detuning effect)
    • hot cells analysis (BD distribution)
    • B-arc features (EDMS: 1096980, TD18 KEK/SLAC post mortem observations)
    • samples (octant/quadrant) for collaborators
  • Possible cutting methods
  • Proposal(s) for TD24
cells nomenclature
Cells nomenclature

1: input coupler

26: output coupler

2: first regular cell

25: last regular cell

5

td24r05 normalized bd distribution
TD24R05 normalized BD distribution

23

18

13

8

Cells nb.

5

3

8h. Records nb.

1

time

Hot cells (5 and 6) have appeared from record #50

The very high peak values are an artifact of the normalization (if only 2 BDs during a record these cells will result very active)

comparison of beadpull measurements
Comparison of Beadpull measurements

Re  coupling;

little changes

Im detuning;

strong 25,26;

some 1,2

Preliminary RF measurements analysis of TD24 from CLEX, Rolf Wegner, 14.08.2013

cutting methods

Milling and grooving

Cutting methods

Turning and ripping apart

Wire Electrical Discharge Machining (EDM)

Sawing

Water-jet cutting

Abrasive saw cutting

cutting issues
Cutting issues
  • copper-air transition due to the damping waveguides
  • iris thickness + holes for dimple tuners
  • length of the structure for rotating support
overall cutting scheme for td24
Overall cutting scheme for TD24
  • Remove the flanges
  • transverse cutting of the two extremities
  • longitudinal cut for metrology of input and output coupler
  • slicing of cells number 4-5-6&21-22-23 for iris inspection
  • (cut of central cells 12-14 and metrology check for comparison with couplers)

5

cutting scheme 1 for td24
Cutting scheme 1 for TD24
  • Remove the flanges by EDM
  • transverse cutting of the two extremities by EDM
  • longitudinal cut for metrology of input and output coupler by EDM
  • slicing of cells number 4-5-6&21-22-23 for iris inspection by EDM
  • (cut of central cells 12-14 as for step 2 and 3)

5

cutting scheme 2 for td24
Cutting scheme 2for TD24
  • Remove the flanges by mechanical sawing
  • transverse cutting of the two extremities by mechanical sawing
  • longitudinal cut for metrology of input and output coupler by EDM
  • slicing of cells number 4-5-6&21-22-23 for iris inspection by mechanical sawing
  • (cut of central cells 12-14 as for step 2 and 3)

5

cutting scheme 3 for td24
Cutting scheme 3for TD24
  • Remove the flanges by mechanical sawing
  • transverse cutting of the two extremities by milling/turning and ripping apart
  • longitudinal cut for metrology of input and output coupler by EDM
  • slicing of cells number 4-5-6&21-22-23 for iris inspection by milling/turning and ripping apart
  • (cut of central cells 12-14 as for step 2 and 3)

5

cutting scheme 4 for td24
Cutting scheme 4for TD24
  • Remove the flanges by mechanical sawing
  • transverse cutting of the two extremities by abrasive low speed sawing
  • longitudinal cut for metrology of input and output coupler by EDM
  • slicing of cells number 4-5-6&21-22-23 for iris inspection by abrasive low speed sawing
  • (cut of central cells 12-14 as for step 2 and 3)

5

conclusion and discussion
Conclusion and discussion
  • Desired measurements:
    • Metrology on input and output coupler to better understand the observed frequency shift
    • BD distribution on cell 5 and adjacents to find and locate possible hot spot
    • other possible surface exploration and analyses (also samples to collaborators)
  • Four proposed options to be chosen from
  • Do we want to study the option of a low speed abrasive saw?
  • Do we want to study the option of the water jet cutting?
td24 vg1 8 r05
TD24_vg1.8_R05

https://edms.cern.ch/file/1093645/2/CLIAAS120079_-_ASSEMBLY.pdf

input ports

slide20

https://edms.cern.ch/file/1093645/2/CLIAAS120077_-_STANDARD_CELL.pdfhttps://edms.cern.ch/file/1093645/2/CLIAAS120077_-_STANDARD_CELL.pdf