The Phobos Spectrometer Silicon Modules
Click on an image to enlarge.
Pictures of three different Phobos Spectrometer Module Types taken on September 11, 1998 and April,1999
(H. Pernegger)
Each Phobos Spectrometer Arm consists of 43 Silicon Pad Detector Modules, with a total
of 700 readout chips and 170 silicon detectors which carry approximately 50000 individual
pads. Phobos will use a total of 9 different module types in its spectrometer.
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Module 1 |
Module 2 |
Module 6 |
Module 4 Type 4 |
Module 5 Type 4 |
Module 5 Type 5 |
Module 7 Type 2 |
Module 7 Typ3 |
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The different Module types: we assembled a total of 52 modules with 9
different geometrical layouts |
A brief geometrical discription to some of the Modules:
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The picture shows three different spectrometer module types. They are used in front
and rear planes of the spectrometer |
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This module is used in the rear planes of the spectrometer. Each so-called type-5
sensor has 256 pads distrubuted in 4 row and 64 columns. The pad size for this detector
type is 0.667 x 19mm). The active area of this module (green coloured area) is
approximately 160 by 80 mm2. |
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The Spectrometer Module 1 is used in the front four planes of the spectrometer. Each
sensor (type-1) has 1540 pads in 22 rows and 70 columns. The pad size for a type 1 module
is 1x1mm. The total active area of this module (green area) is 139 by 22 mm2. |
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The Spectrometer Module 5 is use in the last two planes of the spectrometer.
Each of its sensors has 256 pads in 4 rows and 64 columns. The pad size is 0667 x 19mm.
The total active area of this module is approximately 120 by 80 mm2. |