>Date: Fri, 12 Feb 1999 11:58:35 -0800
>From: "Linda Hendrickson (650)926-3913"  <"MCC::LJH"@slc.slac.stanford.edu>
>Subject: feedback plans for E155
>To: JWH@slc.slac.stanford.edu, MWS@slc.slac.stanford.edu,
PJG@slc.slac.stanford.edu, LJH@slc.slac.stanford.edu,
JLT@slc.slac.stanford.edu, razar@slac
>
>Here are notes from conversation with Mike Stanek
>about feedback and beamcode needs for E155.
>
>The PEPII run ends on Feb 22, and on that day the
>feedbacks (and BGRPs and beamcodes, etc) should be converted
>for E155.  Need to do conversion procedure on the 22nd,
>and hope to have it sorted out by the 23rd.
>(Note Linda is unavailable the morning of the 22nd but
>possibly available by the late afternoon;  should be
>reachable by pager).
>
>Linda and/or Phyllis to provide a dbedit and conversion
>procedure for the feedbacks as follows.  The database
>changes will be saved to CMS, and a backout DBEDIT file
>will be available to restore in May (and document the
>current configuration).
>
>Use beamcode 1.
>DBEDIT the BPMDs for SLC CIDESA (BPMD 48) and
>SLC CIDESA WITNESS (BPMD 5) to use only beamcode 1.
>
>Make the Ti Sapphire (TISATMIT,TISBTMIT) and POLARIZATION ASYMMETRY
>feedbacks available.  Make the TISAPEP2 loop unavailable.
>
>Make the FB31ESA feedback available, and make all other
>FB31 feedbacks unavailable (due to beamcode conflicts
>in FB31).
>
>DBEDIT the Polarization asymmetry feedback to use the TOROid
>(LI00,TORO,488).
>
>Feedbacks that are needed for E155 include:
>All gun feedbacks.
>Linac feedbacks (not damping ring ones, since there's
>only straight-ahead beam).
>FB31ESA and AB01 target loops.
>
>Set up feedback BPMDs and beamcode inclusion modifiers as follows:
>
>LOOP		BPMD		INCLUSION MASK	EXCLUSION MASK
>------		--------	--------------  ----------------
>YAG loops	5 (witness)	E154WITNESS
>TIS loops	5		E154WITNESS
>KTIM loops	5		E154WITNESS
>POLAR ASYM	5				add E154WITNESS
>
>LI00,LI01,	5		E154WITNESS
>LI03,LI04,
>etc through
>LI29
>
>FB31ESA		48 (not witness)		E154WITNESS
>AB01FBCK	48				E154WITNESS
>
>  Note the polarization asymmtry will be using a toroid so that
>  the calibration is not important.  (So we're using the "wrong"
>  calibration for POLAR ASYM to avoid having an extra BPMD
>  in the micro. Using the inclusion/exclusion masks should make
>  it work right).
>