The FNPL is an 18 MeV electron linac. It produces a low emittance, high-intensity beam. The accelerator is used for studying accelerator science, channelling radiation, and plasma wake-field acceleration. The photoinjector is comprised of a copper rf photocathode gun, and a TESLA 5-cell superconducting rf cavity operating at 1.3 GHz. The beamline includes a bunch compressor, assorted diagnostics that measure the transverse and longitudinal phase spaces of the electron beam, and experimental stations.
To learn more about the NICADD Facility, visit it's website
Table of Capabilities:
| Parameter |
Predicted Value
|
|
| Before Compression | ||
| Bunch Charge | 8 nC=5x10^10e- | |
| Laser pulse length FWHM | 28 ps | |
| Launch Phase | 45 degrees | |
| Beam radius at cathode | 3.0 mm | |
| Peak field on cathode | 35 MV/m | |
| Post-Gun Gamma | 8.5 | |
| Transverse Emittance, normalized | 11 mm mrad | |
| Longitudinal Emittance (100% RMS) | 820 deg keV | |
| Momentum Spread | 4.2% | |
| Bunch Length | 4.33 mm | |
| Peak Current | 276 Amperes | |
| After Compression, from theory | ||
| Transverse Emittance, normalized | 15 mm mrad | |
| Bunch Length | 1 mm | |
| Peak Current | 958 Amperes | |
| After compression, from PARMELA | ||
| Transverse Emittance, normalized | 26 mm mrad | |
| Bunch length RMS | .5mm | |
| Momentum spread RMS | 4.3% | |
| Longitudinal Emittance | 760 deg keV | |