UK Neutrino Factory WP2 - Proton Driver Front End Progress Report. Alan Letchford. UKNF Meeting, CR12, R68, RAL. 4 th May 2005. H - Ion Source Progress D Faircloth et al, RAL. Separate Penning field Longer discharge pulse Increased output beam current. 1. Separate Penning Field.
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WP2 - Proton Driver Front End
UKNF Meeting, CR12, R68, RAL. 4th May 2005
The discharge length has been increased by improving cooling.
1.75 msec achieved so far.
Increasing the beam aperture size gives H- currents up to 70 mA.
0.6 mm aperture width 0.8 mm aperture width
J Back, Warwick, J Pozimski, Imperial/RAL
A Kurup, Imperial, A Letchford, RAL
Chopper Progress are encouraging.
M Clarke-Gayther, RAL, G Bellodi, F Gerigk, Astec
The phase 2 fast pulser now meets the spec. for rise time, fall time, pulse duration …
… and pulse droop are encouraging.
Original chopper line resulted in significant performance gains:
Revised chopper line
Diagnostics Progress resulted in significant performance gains:
J Pozimski, Imperial/RAL, P Savage, Imperial
A full suite of diagnostics is being to maximise the experimental capabilities of the FETS.
In addition to the usual beam current and emittance measurements, more advanced techniques such as non-destructive laser/optical measurements and residual gas ion spectroscopy are being investigated.
Hugh Rojanski type electrostatic spectrometer resulted in significant performance gains:
Engineering designs of an HR type electrostatic spectro-meter for the FETS
HR type spectrometer built at IAP Frankfurt
Conclusions resulted in significant performance gains: