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

Cut way view of 805 MHz Pill Box LBL 805 MHz Pill Box cavity U/S U/S D/S D/S Ref. D. Bowring, MAP Meeting , 6 Jan 2012 Ref. D. Bowring, MAP Meeting , 6 Jan 2012 LBL Pillbox cavity Al and Yagmur are working at MTA with Pill Box Cavity with 2 Be buttons 2

Be Buttons 3

4

Up Stream Beryllium Button Surface Study Instrument Keyency (Model: VK – 9700) Laser Scanning Microscope Violet laser Colour 3D Resolution: 1 nm 44.114 µ m 34.798 µ m Max. height: 9.316 µ m 5

Up Stream Beryllium Button Surface Contn.… Max. height: 11.73 µ m 6

Up Stream Beryllium Button Surface Contn.… Max. height: 72.506 µ m Max. height: 30.125 µ m 7

Up Stream Beryllium Button Surface Contn.… Max. height: 62.509 µ m Max. height: 120.828 µ m 8

Up Stream Beryllium Button Surface Contn.… Max. height: 210.049 µ m 9

Up Stream Beryllium Button Surface Contn.… Max. height: 32.025 µ m Max. height: 22.477 µ m 10

Up Stream Beryllium Button Surface Contn.… Max. height: 42 µ m Max. height: 42 µ m Max. height: 39 µ m Max. height: 39 µ m 11

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 µ m • Proper fixture is required to hold the sample and to view the curved surface the curved surface • SEM study shall be done for composition of the deposition 12