| Position | Logical Name | Description |
|---|---|---|
| 0 | F4X | 4 pixels Slit |
| 948 | PIN | PinHole for Test |
| 1896 | F2 | Hole |
| 2844 | F1X | 1 pixel Slit |
| 3792 | WIN | Field Stop |
| 4740 | F2X | 2 pixels Slit |
| 5688 | F1 | Hole |
| 6636 | EPS | PinHole for Test |
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