1 / 17

HIGH-VOLTAGE TESTING FOR A HIGH-CURRENT ELECTRON GUN

Explore the process of testing a high-current electron gun, from cathode preparation to RF cavities and emittance analysis. Follow along the journey of constructing and testing the gun.

bobbyw
Download Presentation

HIGH-VOLTAGE TESTING FOR A HIGH-CURRENT ELECTRON GUN

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. HIGH-VOLTAGE TESTING FOR A HIGH-CURRENT ELECTRON GUN Katherine Duncan-Chamberlin John Carroll University, Cleveland, OH Mentor: Karl Smolenski *Supported by the NSF Grant PHY-1156553

  2. A1

  3. A view of the cathode prep system.

  4. A positively charged ion travels back toward the cathode.

  5. The RF cavities.

  6. Installing the non-evaporable getter pump.

  7. Example of a thermionic gun. Note the heater and filament (as opposed to laser). http://www.tpub.com/neets/book16/33NP0117.GIF

  8. Emittance tells us about the average spread of the beam: its size and angle. We want this value to be low! http://eucard.web.cern.ch/eucard/activities/communication/public/Images/Emittance.jpg - colors inverted, text redone.

  9. With the “super clean” phase of the gun construction done, we removed it from the clean room to begin initial tests (showing it won’t break down by going step by step – insulators – plus stalk – plus electrodes: to see where any issues are) before sending it to L0, which is the area where the ERL is housed.

  10. High pressure rinsing protection rings.

  11. The first insulator is lowered on to the vessel (left). Later, the second insulator is lifted prior to attachment, showing its interior (right).

  12. Thanks to: Karl and Jared, for their help, and to Cornell, for the opportunity.

  13. Questions?

More Related