CBETA Splitters

Splitter line magnet polarity convention

For bipolar dipole magnets:

• Horizontal: Positive current = beam to the outside of the ring

• Vertical: Positive current = beam up

For bipolar quadrupole magnets:

• Positive current = horizontal focussing

For unipolar magnets, magnetic field direction is determined by the lattice

EPICS Sigma Phi SP# to IP address mapping file

• /nfs/erl/online/epics/r12/ioc_CBETA/sigmaPhiPS/iocBoot/iocsigmaPhiPS/st.cmd

EPICS SPxx IOC name assignment file directory

• /nfs/erl/online/epics/r12/ioc_CBETA/sigmaPhiPS/sigmaPhiPSApp/Db

Splitter line 4 Septum magnets

Septa 2 magnet assembly (7207-014-062019.pdf, 6/20/2019 D. Burke)

A total of four septum magnets are required to be installed in the 150 MeV splitter lines for the CBETA machine - 2 in the SX line and 2 in the RX line.

• Halbach and electromagnet solution, Nick Tsoupas (A__modified_Halbach_magnet_for_the_CBETA_project.docx, A__modified_Halbach_magnet_for_the_CBETA_project.pdf)

-- RobMichnoff - 21 Jun 2017