Surface Concept DLD6060-8S, Руководство пользователя

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Delayline Detector DLD6060-8S Manual
Delayline Detector DLD6060-8S Manual | Surface Concept GmbH
The delaylines are close to ground potential (in respect to the high voltage of the MCPs). A pulse coupling
layer is used to isolate the delaylines from the high voltage of the MCP stack as well as to couple pulses
from the electron cloud into the delaylines. The MCP front (input) is electrically isolated from the housing.
Signal readout is done via 16 readout lines. The naming for the signal lines orientates on the naming of
the single delaylines but differes and is extended by the additional number 1 or 2. Hereby the definition
of the two signal lines per delayline is made in such a way, that the first channel is positioned on the left
side and the top side of the delayline respectively for the x and y direction of the 0° system, when looking
from the back through the detector anode defining the zero position of the detector image (see
red dot
in Figure 10 ).
The naming of the signal lines is N or R for the 0° and the 45° system respectively, 1 or 2 for the two seperate
delaylines per imaging direction and the X1 and X2 and Y1 and Y2 respectively for the two signal lines for
the specific delayline. Therefore the signal naming is N1X1, N1X2, N1Y1, N1Y2; N2X1, N2X2, N2Y1, N2Y2;
R1X1, R1X2, R1Y1, R1Y2; R2X1, R2X2, R2Y1, R2Y2.
6.2 Delayline Detector – Connection Ports
The Delayline Detector carries three single SHV feedthroughs soldered into the base flange for the high
voltage supply and a CF65 flange, which holds 16 SMB feedthroughs for signal transfer as well as an
orientation pin for correct orientation of the ACU. The allocation of the 16 signal channels on the “SMB
flange” as well as the three high voltage potentials “U_DLD”, “CH-HV” and “CH-B” can be taken from
Figure
11 . The three high voltage potentials are also engraved on the base flange. The internal connection of the
high voltage is given schematically in Figure 12 .
Hold the ACU straight and plug it very carefully.
The middle pins of the SMB connectors in the 16-fold SMB feedthrough can be damaged
when holding the ACU not straight while plugging.
Do not disconnect the high voltage cable from the Delayline Detector as long as high
voltage is applied. This will lead to high voltage sparks which can damage the very
sensitive detector, the MCPs and/or the analogue readout electronics seriously.
Figure 11: Connection ports for the DLD6060-8S.
CH-B CH-HV U_DLD