805 MHz Pillbox Cavity Beryllium Button Surface Study (Preliminary) - - PowerPoint PPT Presentation

805 MHz Pillbox Cavity Beryllium Button Surface Study (Preliminary)

Mukti Jana, A. Moretti, T. Shen, D. Hicks, Dave

Acknowledgement Alvin Tollestrup

LBL 805 MHz Pill Box cavity

• Ref. D. Bowring, MAP Meeting , 6 Jan 2012

Cut way view of 805 MHz Pill Box U/S D/S

LBL Pillbox cavity with 2 Be buttons

• Ref. D. Bowring, MAP Meeting , 6 Jan 2012

Al and Yagmur are working at MTA with Pill Box Cavity

2

U/S D/S

Be Buttons

3

4

Up Stream Beryllium Button Surface Study

Keyency (Model: VK – 9700) Laser Scanning Microscope Violet laser Colour 3D Resolution: 1 nm

Instrument

5 44.114 µm 34.798 µm

• Max. height: 9.316 µm

Up Stream Beryllium Button Surface Contn.…

6

• Max. height: 11.73 µm

Up Stream Beryllium Button Surface Contn.…

7

• Max. height: 72.506 µm
• Max. height: 30.125 µm

Up Stream Beryllium Button Surface Contn.…

8

• Max. height: 62.509 µm
• Max. height: 120.828 µm

Up Stream Beryllium Button Surface Contn.…

9

• Max. height: 210.049 µm

Up Stream Beryllium Button Surface Contn.…

10

• Max. height: 32.025 µm
• Max. height: 22.477 µm

• Max. height: 42 µm
• Max. height: 39 µm

Up Stream Beryllium Button Surface Contn.…

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• Max. height: 42 µm
• Max. height: 39 µm

Summary and Future Work

• Preliminary Laser Scanning Microscope study shows that

there are deposition (composition is not known) on the surface of Up Stream beryllium button. Max. deposition height is ∼ 210 µm

• Proper fixture is required to hold the sample and to view

the curved surface

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the curved surface

• SEM study shall be done for composition of the deposition