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Machine Parameter
FEL-1 project goals
|
Parameter |
|
Units |
|
Electron beam Energy |
1.2 |
GeV |
|
Bunch Charge |
800 |
pC |
|
Peak Current |
850 |
A |
|
Bunch Length (FWHM) |
700 |
fs |
|
Norm. Emittance (slice) |
0.8-1.2 |
mm mrad |
|
Energy Spread (slice) |
150-250 |
keV |
|
Wavelength |
100 - 20 |
nm |
|
Photon energy |
12 - 62 |
eV |
|
Tunability |
continuos |
|
|
Pulse Length (FWHM) |
30 - 100 |
fs |
|
Bandwidth (rms) |
~ 20 - 40 |
meV |
|
Bandwidth ΔE/E (rms) |
~ 5 10-4 |
|
|
Bandwidth fluctuations |
|
|
|
Polarization |
variable |
|
|
Repetition Rate |
10 - 50 |
Hz |
|
Energy/pulse |
> 100 |
µJ |
|
Peak Power |
1 ÷ 5 |
GW |
|
Photons per pulse |
1014 @100nm |
|
|
FEL mode |
TEM00 |
|
|
Power Fluctuation |
~ 25% |
|
|
Central Wavelength Fluctuation |
within bandwidth |
|
|
Output Transverse Position Fluctuation |
50 |
µm |
|
Pointing Fluctuation |
< 5 |
µrad |
|
Output Spot Size (FWHM@waist) |
290 |
µm |
|
Divergence (rms) |
50 @40nm |
µrad |
|
Achieved values (*) so far
|
|
Units |
|
1-1.5 |
GeV |
|
500-800 |
pC |
|
300 - 800 |
A |
|
600 - 1300 |
fs |
|
1.2 - 1.5 |
mm mrad (estimated) |
|
100 - 200 |
keV |
|
100 - 20 |
nm (**) |
|
12 - 62 |
eV |
|
continuous |
on ranges (**) |
|
30 - 100 |
fs (estimated) |
|
22 @32 nm |
meV depending on λ |
|
2.5 10-4 @32 nm |
|
|
~3% |
rms (@32 nm) |
|
LO/LC/RC |
|
|
10 |
Hz |
|
20 - 100 (*) |
µJ |
|
0.2 - 1 (*) |
GW (estimateed) |
|
~ 1013 @32 nm |
|
|
TEM00 |
|
|
|
|
|
~ 1.1 |
meV |
|
- |
µm |
|
- |
µrad |
|
- |
µm |
|
- |
µrad |
(*) Depending on wavelength.
Up to 2x higher by relaxing spectral purity,
(**) Tuning range continuous in selected regions, depending on seed laser.
|
(*) The FEL parameters for users beam time may differ from the ones indicated in this table. In the compilation of proposals, FEL users are addressed to the FERMI FEL-1 and FEL-2 photon parameters.
FEL-2 project goals
|
Parameter |
|
Units |
|
Wavelength |
20 - 4 |
nm |
|
Photon energy |
62 - 310 |
eV |
|
Pulse Length |
< 100 |
fs |
|
Bandwidth |
~ 20 - 40 |
meV |
|
Polarization |
variable |
|
|
Repetition Rate |
50 |
Hz |
|
Peak Power |
~ 1 |
GW |
Photons per pulse
|
1 · 1013 @10nm |
|
|
Power Fluctuation |
> 50 % |
|
|
Central Wavelength Fluctuation |
within bandwidth |
|
|
Output Transverse Position Fluctuation |
50 |
µm |
|
Pointing Fluctuation |
< 5 |
µrad |
|
Output Spot Size (FWHM@waist) |
140 |
µm |
|
Divergence (rms) |
15 @10nm |
µrad |
|
Achieved values (*) so far in commissioning
|
|
Units |
|
14.4 - 4* |
nm |
|
86.1 - 310* |
eV |
|
- |
fs |
|
0.1 |
eV @10.8nm |
|
Variable |
|
|
10 |
Hz |
|
- |
GW |
3·1012 @10.8nm
3·1011 @6.5nm
2·1010 @4nm |
|
|
20% (@10.8 nm) |
|
|
~3 (rms @10.8 nm) |
pm |
|
- |
µm |
|
- |
µrad |
|
- |
µm |
|
- |
µrad |
* Integer harmonics of the seed at 260 nm
|
Ultima modifica il Martedì, 14 Ottobre 2014 16:48
