FIGURE 1.1: OPERATION PRINCIPLE OF THE DELAY-LINE-ANODE, LEFT PICTURE FROM: SOBOTTKA AND WILLIAMS IEEE TS-
35
(1988) 348 ................................................................................................................................................................ 9
FIGURE 1.2: TYPICAL IMAGING/TIMING PERFORMANCE OF A DLD40 DETECTOR. THE DETECTOR (SHADED BY A MASK) WAS
IRRADIATED WITH
α-PARTICLES. SIMILAR OR BETTER RESULTS CAN BE ACHIEVED WITH ADEQUATE READ-OUT
ELECTRONICS
. TEMPORAL RESOLUTION IS SIGNIFICANTLY BETTER THAN THE LOCAL TIME SUM WIDTH (SEE RIGHT
PICTURE
) WHICH INDICATES AN UPPER LIMIT. .............................................................................................................. 10
FIGURE 1.3: ORIENTATION OF THE REAR CERAMIC RING ON THE DELAY-LINE ASSEMBLY (DLD40, DLD80). FOR
HEX80/HEX75 THE ORIENTATION IS SIMILAR, BUT THERE IS ONLY ONE PAIR OF FLAT “SHIELDS”. ............................ 11
FIGURE 1.4: CABLES FOR HOLDER AND WIRES ON DLD40, DLD80 AND HEX80. THE FOUR M2 RODS AND THE MCP HOLDER
PLATE ARE ON THE SAME
“HOLDER” POTENTIAL AS THE DELAY-LINE ANODE BODY. THE CABLE CAN BE CONNECTED
ANYWHERE ON THESE PARTS
. ...................................................................................................................................... 13
FIGURE 1.5: ORIENTATION OF X AND Y POSITION TERMINALS ON ANODE VIEWED FROM THE REAR SIDE, THE OUTER DELAY
LINE WIRES
IN THIS POSITION THE SLIDING SHIELDS ARE RECOMMENDED TO BE PLACED LEFT AND RIGHT ON THE (INNER)
Y-LAYER SIDE.............................................................................................................................................................. 13
FIGURE 1.6: REAR VIEW OF A HEXANODE WITH SUGGESTED CABLE CONNECTION .............................................................. 13
FIGURE 1.7: CONNECTIONS TO A CERAMIC RING. LEFT: CABLE CLAMPED TO A “FRONT” RING (MCP SIDE VISIBLE).
MIDDLE/RIGHT: CABLE CLAMPED TO A BACK RING WITH 3MM LUG, COUNTERSUNK M2 SCREW AND SPECIAL M2 NUT.
.................................................................................................................................................................................... 14
FIGURE 1.8: FREE-STANDING MESH MOUNTED TO THE MCP FRONT RING (LEFT: FRONT SIDE, RIGHT REAR SIDE OF THE FRONT
RING
). .......................................................................................................................................................................... 14
FIGURE 1.9: RECOMMENDED RING ORIENTATIONS ON A DLD40 ASSEMBLY (DLD80 & HEX80 SIMILAR). LEFT PICTURE:
CABLE CONNECTION OF THIS TYPE WITHOUT LUG
. CABLE CONNECTION PADS MUST REST IN THE RECESSED PARTS OF THE
HOLDER PLATE NEAR THE DIAGONAL
. RIGHT PICTURE: THE ASSEMBLED MCP STACK WITH RECOMMENDED
ORIENTATION
. HERE, LUGS WITH CRIMPED WIRES CRIMPED ARE USED. PLEASE FOLLOW THE NEXT FIGURES/DIRECTIONS
TO ACHIEVE SUCH A DETECTOR MOUNTING
................................................................................................................. 15
FIGURE 1.10: ASSEMBLY OF MCP-STACK - STAGE 1 (DLD40, DLD80 & HEX80) ............................................................. 15
FIGURE 1.11: ASSEMBLY OF MCP-STACK - STAGE 2A (DLD40, DLD80 & HEX80) .......................................................... 16
FIGURE 1.12: ASSEMBLY OF MCP-STACK - STAGE 2B (DLD40(/2), DLD80 & HEX80/HEX75) ........................................ 16
FIGURE 1.13: ASSEMBLY OF MCP-STACK - STAGE 3-1 (DLD40, DLD80 & HEX80) ......................................................... 16
FIGURE 1.14: ASSEMBLY OF MCP-STACK - STAGE 3-2 (DLD40, DLD80 & HEX80) ......................................................... 17
FIGURE 1.15: ASSEMBLY OF MCP-STACK - STAGE 3-3 (DLD40, DLD80 & HEX80) ......................................................... 17
FIGURE 1.16: ASSEMBLY OF MCP-STACK - STAGE 3-4 (DLD40, DLD80 & HEX80) ......................................................... 17
FIGURE 1.17: MCP STACK WITH SPRING CLAMP FOR THE MCP BACK CABLE (DLD40, DLD80 & HEX80) ........................ 17
FIGURE 1.18: ASSEMBLY OF MCP-STACK - STAGE 4 (DLD40 & DLD80) ........................................................................... 18
FIGURE 1.19: HEXANODE WITH HOLDER .............................................................................................................................. 18
FIGURE 1.20: HEXANODE WITH MOUNTED MCP-STACK ..................................................................................................... 18
FIGURE 1.21: REAR METAL PLATE WITH ONE MCP (DLD120 AND HEX120) ..................................................................... 19
FIGURE 1.22: ASSEMBLY OF MCP-STAGE 2 (DLD120 AND HEX120)................................................................................. 19
FIGURE 1.23: ASSEMBLY OF MCP-STACK - STAGE 3-1 (DLD120 AND HEX120) ............................................................... 20
FIGURE 1.24: ASSEMBLY OF MCP-STACK - STAGE 3-2 (DLD120 AND HEX120) ............................................................... 20
FIGURE 1.25: ASSEMBLY OF MCP-STACK - STAGE 3-3 (DLD120 AND HEX120) ............................................................... 20
FIGURE 1.26: ASSEMBLY OF MCP-STACK - STAGE 4 (DLD120 AND HEX120) ONLY FOR OLD SYSTEMS ............................ 21
FIGURE 2.1: SKETCH OF THE DETECTOR WITH MOUNTING FLANGE (ONLY FLANGE MOUNTING OPTION, HERE: FT12TP/100).
FOR CONNECTING A HEXANODE, THE SAME 12-PIN FEEDTHROUGH IS USED AND AN ADDITIONAL SET OF AT LEAST 3
MHV OR SHV FEEDTHROUGHS (E.G. THE FT4) IS NEEDED FOR CONNECTING THE MCP FRONT, MCP BACK, HOLDER
(AND OPTIONALLY A MESH). ........................................................................................................................................ 24
FIGURE 2.2: CF200 FLANGE WITH TWO CF35 PORTS FOR MOUNTING A HEX80 DETECTOR. IT IS RECOMMENDED TO FIX THE
FT12 12-PIN FEEDTHROUGH ON THE CENTER PORT IN AN ORIENTATION THAT THE GROOVE POINTS PERPENDICULAR (OR
AS CLOSE TO THAT AS POSSIBLE
) TO THE DIRECTION OF THE OFF-CENTER PORT. THIS AVOIDS SPATIAL CONFLICTS THAT
CAN OCCUR FOR CERTAIN ITEM COMBINATION IN THE
FT16TP PRODUCT PACKAGE. ................................................... 24
FIGURE 2.3: PIN NUMBERS AT THE FT12 FLANGE (THE AIR-SIDE GUIDING GROOVE POINTS UPWARDS) AND CABLE
CONNECTIONS
. ............................................................................................................................................................. 25
FIGURE 2.4: FT12TP PLUG WITH SWITCH FOR FRONT (F) AND BACK (B) MCP PICKUP. THE HOLE IN THE RING CASE ALLOWS
ACCESS TO THE IN
-LINE POTI. ....................................................................................................................................... 27
FIGURE 2.5: FT12TPHEX PLUG WITH SQUARE CASE ............................................................................................................ 27
MCP Delay Line Detector Manual (11.0.1304.1) Page 81 of 83
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