[en] A high-power klystrode rf system for the RFQ1 facility at the Chalk River Laboratories (CRL) has been manufactured by Continental Electronics Corporation (CEC), Dallas using klystrode amplifier tubes developed by Varian, San Carlos. The system consists of two units, each capable of 250 kW in pulsed or cw mode. The two units can be operated independently to drive two separate accelerator structures, or together in a master/slave combination to drive one structure. This system is the first high-power klystrode to power a cw accelerator, and is a significant step in high-power klystrode development, increasing the average power per tube by a factor of 5 (to 250 kW). Commissioning, initial operation of one unit of this system with the RFQ1 facility, and data obtained to date, is described

[en] The RFQI accelerator is a 4-vane cw radiofrequency quadrupole designed to accelerate 75 mA of protons to 600 keV. The accelerator is the major component of a program at the Chalk River Nuclear Laboratories (CRNL) to study design, construction, control and diagnostics techniques for high current cw RFQ's. RF conditioning to 1.5 Kilpatrick was completed and first cw proton beam accelerated in July 1988. This paper describes the current status of the accelerator, and the initial beam experiments. 4 refs., 3 figs., 1 tab

[en] RFQ1-1250, a 'new-vane' version of our original RFQ1-600 cw radiofrequency quadrupole proton linac, has vanes designed for a peak surface electric field of 1.8 Kilpatrick and a beam output energy of 1.25 MeV. The RFQ1-600 vanes had OFHC copper tips brazed to copper electro-plated mild steel bodies; the new RFQ1-1250 vanes are fabricated from a relatively new material called GlidCop Al-15, an alumina dispersion-strengthened copper. Installation of the vanes, tuning, and cavity conditioning went smoothly and considerably faster than on the original accelerator. Details of the tuning and the cavity conditioning are described. (Author) 6 figs., tab., 4 refs

[en] RFQ1 is an accelerator project to develop high-proton current cw RFQ's suitable for scientific and industrial applications such as neutron sources, nuclear waste transmutation and fissile fuel breeding. The accelerator, which comprises a 50 keV dc injector and a 0.6 MeV cw radiofrequency quadrupole accelerator, is a test bed for a wide range of high-power RFQ experiments. The structure was designed to accelerate 75 mA of protons and has achieved the full design current. Measurements are reported on the output beam transmission and emittance for four-beamlet proton beam injection from a duoPIGatron ion source

[en] Measurements are reported on the output beam transmission, emittance and beam energy of the RFQ1-1250 proton accelerator. The RFQ1 accelerator, which comprises a 50 keV dc injector and a cw radiofrequency quadrupole accelerator (RFQ), is a test bed for a wide range of high-power RFQ experiments. Recently, a new set of vanes for the RFQ increased the output energy of the beam to 1.25 MeV. The measurements are compared to the operating characteristics of the earlier 600 keV RFQ1-600 version. (Author) 6 refs., 4 figs

[en] RFQ1 comprises a 50 keV dc injector and a cw radiofrequency quadrupole (RFQ) accelerator. The structure, designed to accelerate 75 mA of protons to an energy of 0.6 MeV, is a test bed for a wide range of high-power RFQ experiments. The injector has delivered 100% of the design current to the RFQ. The RFQ has accelerated up to 90% of design current at 1.5 Kilpatrick. A summary of beam performance is presented and measurements are reported on the emittance and beam energy

[en] RFQ1, a 600 keV, 75 mA proton RFQ is the major component of a research program at Chalk River Nuclear Laboratories (CRNL) to study high-current 100% duty factor accelerator systems and develop improved accelerator technology. The mechanical assembly and rf tuning of the RFQ were completed late in 1987, giving fields that were uniform quadrant-to-quadrant and end-to-end to better than 5%. Details of the assembly and tuning will be given in this paper, and the current status of the facility, including high power pulsed and cw rf conditioning and beam experiments with the 50 keV dc injector and RFQ, will be described

[en] The RFQ1 accelerator is being developed at Chalk River to test the limits of the cw RFQ technology. A 50 kV injector has been built and is now being commissioned as the first phase of the program. This paper describes some of the innovative features of the RFQ1 injector and reports on initial operating experience