EMP BWEC

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====== Targets ======

==== Wishlist ====

^ Target                ^ 1 radiation length [mm]  ^
| luminescent screen    |  -                       |
| C12                   | 213.5                    |
| Plastic (Lupolen/PE)  | 497                      |
| Ta181                 | 4.1                      |
| Ca40                  | 104.2                    |
| Si28                  | 97.3                     |
| Pb                    | 5.6                      |

The aim is to have a target thickness of less than 1% of the radiation length.
Link to PDG: [[https://pdg.lbl.gov/2020/AtomicNuclearProperties/index.html]]

==== Installed targets (19.09.2024) ====
From top to bottom:

^ Target              ^ thickness [mm]  ^ radiation length  ^
| empty               |  -              |                   |
| Pb nat              | 0.124           | 2.2%              |
| Plastic (Lupolen)   | 2.0             | 0.4%              |
| Si28                | 1.0             | 1.0%              |
| Pb nat              | 0.2             | 3.6%              |
| luminescent screen  |  -              |                   |
| Ta181               | 0.049           | 1.2%              |
| C12                 | 1.03            | 0.5%              |
| holy carbon         | 0.4             | 0.2%              |


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