Closed Orbit Correction

Closed orbit correction with the MICADO algorithm is initiated by the command

MICADO,LINE=name,BEAM=name,RANGE=range,METHOD=name,TOL=real,
       ITERATIONS=integer,CORRECTORS=integer,PLANE=name,
       LISTC1=logical,LISTM1=logical,LISTC2=logical,LISTM2=logical;

This command has the attributes:

LINE

The label of a previously defined beam line (no default).

BEAM

The label of a previously defined beam (default UNNAMED_BEAM). This is used to define the type and reference momentum for the particles to be sent through the line.

RANGE

If this attribute is given, the table is restricted to the range given.

METHOD

This attribute specifies the method to be used for tracking the orbit. Known names are:

THIN

Use thin lens approximations.

LINEAR

Use linear map approximation (around the closed orbit). This is the default.

THICK

Use finite-length lenses.

CORRECTORS

The maximum number of correctors to be used in each iteration.

TOL

The tolerance for the r.m.s. closed orbit.

ITERATIONS

The number of iterations desired. When this number is zero, the orbit is only checked but not corrected. Each iteration is terminated when the imposed number of correctors has been used or when the tolerance is reached.

PLANE

The plane to be corrected. Known names are:

X

Correct the horizontal plane only.

Y

Correct the vertical plane only.

BOTH

Correct both planes (default).

LISTC1

If true, list the corrector settings before each iteration.

LISTM1

If true, list the monitor readings after each iteration.

LISTC2

If true, list the corrector settings after correction.

LISTM2

If true, list the monitor readings after correction.