1 / 10

Design of the 325 MHz RFQ – progress to-date September 22, 2005

Design of the 325 MHz RFQ – progress to-date September 22, 2005. P.N. Ostroumov, V.N. Aseev and A.A. Kolomiets ANL, Physics Division. Simulations by the TRACK Code.

gaenor
Download Presentation

Design of the 325 MHz RFQ – progress to-date September 22, 2005

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. Design of the 325 MHz RFQ – progress to-dateSeptember 22, 2005 P.N. Ostroumov, V.N. Aseev and A.A. Kolomiets ANL, Physics Division

  2. Simulations by the TRACK Code • RFQ model in the TRACK code has been modified. Entrance and exit regions of the RFQ that include gap between tank and electrodes, radial matchers and transit cells are described by 3D field calculated by the EM Studio code. • Fields in regular part of the RFQ have been calculated using 8-term potential expansion. These coefficients are calculated by the DESRFQ code during the RFQ vane profile generation. The coefficients have been verified by EM simulations. ANL-FNAL meetings

  3. RFQ Regular Cell Computer model • Field expansion coefficients determined by DESRFQ code has been compared with 3D field distribution Ex Ez ANL-FNAL meetings

  4. RFQ Regular Cell Calculations were made for cell with the following parameters: R0 = 0.34 cm Re = 0.75 R0 Lcell = 2.72 cm m = 2. ANL-FNAL meetings

  5. Electrostatic potential expansion in a cell - Accelerating efficiency - Focusing efficiency ANL-FNAL meetings

  6. RFQ Exit Computer model Ez ANL-FNAL meetings

  7. Fields at the exit region G(z) Ez(0,0,z) Transient cell Radial matcher Gap V/cm Transient cell Radial matcher Gap V/cm2 Z, cm Fields components calculated at Inter electrode voltage 1V ANL-FNAL meetings

  8. Beam Dynamics ANL-FNAL meetings

  9. Transverse Emittances at RFQ Output Simulated by TRACK with 3D Field X plane Y plane mrad mrad cm cm y = -0.899 y = 0.0204 cm/mrad x = -0.899 x = 0.0169 cm/mrad ANL-FNAL meetings

  10. Longitudinal Emittance aqt the end of the RFQ dW/W Degree ANL-FNAL meetings

More Related