THE FARADAY CUPS

TABLE OF CONTENTS:
 

I. THE FARADAY CUP GPS.FC490

II. RUNNING DIFFERENT FARADAY CUPS SIMULTANIOUSLY

It is possible to have different Faraday cups for different sections of the separators, i.e., HRS, GPS and Experimental Area (EA), simultaneously "IN". However it is still only one Faraday Cup "IN", for each section (HRS, GPS and EA).

When you move "IN" a Faraday Cup in one of these sections, the previous Faraday Cup (if any) of this section will go "OUT". The Faraday Cups of the other sections will not be affected.

The program Faraday Cup STATUS helps you to find which Faraday Cups are "IN" or in a undetermined position, i.e., "INVALID". All the other faraday Cups are (supposed to be) "OUT".

III. THE LASEROPEN/LASERCLOSE PROPERTIES

There are two properties designed for the use of the laser ion source: LASERCLOSE and LASEROPEN.

They are used via the Easy Equipment Access by typing in the EQUIPMENT NAME of the faraday cup, the PROPERTY "LASERCLOSE" and pressing READ.

LASERCLOSE permits to read continually, on the electrometer, the beam current (Without closing and opening the micro switches at each measurement). But the measurement for any others faraday cups will not be correct because they will all read this value.

LASEROPEN permits to stop this reading . Then one can use the electrometer as usual.

Warning1: Putting the faraday cup "OUT" will not do a "LASEROPEN" !!!

Warning2: Do not read (from anywhere: Panel, Logbook) the current for any Faraday Cup in any section when LASERCLOSE is in use. This will open the micro switches again and a new LASERCLOSE should be issued to reactivate the function.

IV. SIZE OF FARADAY CUPS