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Organization
List of Beam Parameters for the XFEL LINAC
Main Linac Section 1
|
Parameter |
Value |
|---|---|
|
energy gain |
0.5 to 2.5 GeV |
|
installed modules |
16 |
|
active modules |
12 |
|
accelerating gradient |
20.1 MV/m |
|
installed klystrons |
4 |
|
active klystrons |
3 |
Main Linac Section 2
|
Parameter |
Value |
|---|---|
|
energy gain |
2.5 to 20 GeV |
|
design gradient |
23.6 MV/m |
|
Installed modules |
100 |
|
active modules |
92 |
|
cavities per module |
8 |
|
installed klystrons |
25 |
|
active klystrons |
23 |
|
beam current |
5 mA |
|
power per klystron |
3.8 MW |
|
incl. 10 % + 15% overhead |
4.8 MW |
|
matched Qext |
4.6 x 10^6 |
|
RF pulse |
1.37 ms |
|
beam pulse |
0.65 ms |
|
repetition rate |
10 Hz |
|
average beam power |
650 kW |
Performance Goals for Electron Beam
|
Parameter |
Value |
|---|---|
|
beam energy |
20 GeV |
|
emittance (norm.) |
1.4 mrad x mm |
|
electron bunch charge |
1 nC |
|
electron bunch length |
80 fs |
|
uncorrelated energy spread |
2.5 MeV rms |
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