Title: Status Report on the Low-Energy Demonstration Accelerator (LEDA)

The 75-keV injector and 6.7-MeV RFQ that comprise the first portion of the cw, 100-mA proton linac for the accelerator production of tritium (APT) project have been built and tested. The LEDA RFQ has been extensively tested for pulsed and cw output-beam currents {le} 100-mA. Up to 2.2 MW of cw rf power from the 350-MHz rf system is coupled into the RFQ, including 670 kW for the cw proton beam. The RFQ output beam emittance for a 93-mA pulsed RFQ output beam, determined from quadrupole-magnet-scan measurements, is {var_epsilon}{sub x} x {var_epsilon}{sub y} = 0.25 x 0.31 ({pi} mm mrad){sup 2} [rms normalized]. A follow-on experiment, to intentionally introduce and measure beam halo on the RFQ output beam, is now being installed.

[1]  P. McGehee,et al.  Low-Energy Demonstration Accelerator (leda) Radio-Frequency Quadrupole (rfq) Results , 2000 .

[2]  J. D. Schneider,et al.  High Power Operations of LEDA , 2000 .

[3]  P. McGehee,et al.  Commissioning of the Low Energy Demonstration Accelerator (LEDA) radiofrequency quadrupole (RFQ) , 1999, Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366).

[4]  J. Schneider,et al.  Operation of a microwave proton source in pulsed mode , 1998 .

[5]  J. D. Schneider,et al.  DETERMINING PHASE-SPACE PROPERTIES OF THE LEDA RFQ OUTPUT BEAM , 2000 .

[6]  J. David Schneider,et al.  OVERVIEW OF HIGH-POWER CW PROTON ACCELERATORS ∗ , 2000 .

[7]  M. Schulze.  Beam emittance measurements for the low-energy demonstration accelerator (LEDA) radio-frequency quadrupole (RFQ) , 2000 .

[9]  E. A. Meyer,et al.  Status report on a dc 130 mA, 75 keV proton injector (invited) , 1997 .

[10]  J. D. Schneider,et al.  Design of an Ogive-Shaped Beamstop , 1998 .

[11]  J. D. Schneider,et al.  Operation of the Low-Energy Demonstration Accelerator: the proton injector for APT , 1999, Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366).

[12]  J. D. Gilpatrick,et al.  BEAM DIAGNOSTIC INSTRUMENTATION FOR THE LOW-ENERGY DEMONSTRATION ACCELERATOR (LEDA): COMMISSIONING AND OPERATIONAL EXPERIENCE , 2000 .

[13]  J. Schneider,et al.  LEDA: A High-Power Test Bed of Innovation and Opportunity , 2000 .

[14]  J. Gilpatrick,et al.  High energy beam transport beamline for LEDA , 1998 .