Move/slit

The command

ONLINE> move/slit=slit_name

invokes the menu which is displayed below (table 7.4). Slit_name is the generic slit name. Suppose it has been choosen to be S1. In this case ONLINE expects that the following symbols point to motor names: s1_top, s1_bottom, s1_right, s1_left.

Table 7.3: The move/slit Menu

 

                              --- Slit S1  ---
              (Seen from the source, +x direction is left)

                              Top:      MOT23
                              Position: 0.799995
                              Move:

          Left:     MOT22                              Right:    MOT21
          Position: 3.5                                Position: 6.49984
          Move:                                        Move:

                              Bottom:   MOT24
                              Position: -0.20005
                              Move:

  Center
     CX: 4.99992         Move:|               |
     CY: 0.2999725       Move:
  Opening
     DX: -2.99984        Move:
     DY: 1.000045        Move:

--------------------------------------------------------------------------------
     PF1 - EXECUTE MOVE, PF3 - CALIBRATE, PF4 - EXIT, SPACE BAR TO STOP MOVE

The motor positions are displayed and also the position of the center and the opening, e.g.: cx is the x-position of the center of the slit.

The coordinate frame is defined as follows: The z-axis points in the direction of the photons, the y-axis upwards and the x-direction is left, if one looks from the source.

Note that there is a function slit() (section 13.16.4) that moves a slit and it is also possible to scan slit parameters: scan/slit (section 8.1.9).