5.4.7.8  Operating Procedure

In order to change the position of the collimator ladder, an access to the Hall is required. The positioning of the collimator ladder is accomplished manually. A hand-cranked acutator at the top of the collimator box is used to change the position. The position is read out with a volt meter connected to the output of the encoder.

After accessing the Hall, the following operation procedure needs to be followed:

 

Select the electron or the hadron collimator box as necceray

 

Gain safe access to the top of the collimator box via a temporary ladder.

 

Hand-crank the ladder actuator until the desired position is reached. The following table summarizes the positioin calibrations for the two collimator boxes.

 

HRSE HRSH

Slit 6.15 6.17

Sieve 3.64 3.66

Valve 0.834 0.85