A 15 mA dc H− multicusp source has been developed for injection into a TR30 cyclotron. This is also used with 900 kV tandem accelerator to obtain 10 protons at 1.8 MeV. The program an extension of the 5–7 cusp TRIUMF during 1989–1990. Major efforts include search optimal filament materials, shape, and location; comparison line confinement magnetic filtering electrons extraction region; optimization lense configuration; upgrading vacuum power systems capability. noncesiated maximum arc...

The electron cyclotron resonance (ECR) charge state breeding method based on the PHOENIX source is first dedicated to continuous high radioactive ion production for cyclotrons, due their q/m requirements, and efficiency. It can be used as an injector RFQ, linacs, synchrotrons either in cw or pulsed operation. efficiency of 1+ n+ time are fundamental parameters method, dependence with regard beam emittance injected has been measured will discussed acceleration. process slightly decreases when...

The off-line ion source (OLIS) terminal consists of a microwave cusp source, either surface or hybrid surface-arc discharge and an electrostatic switch that allows selecting any one the sources without mechanical intervention. These provide variety beams to ISAC experiments, for commissioning accelerators, setting up radioactive tuning beam lines. has been operational since 1995 provides singly doubly charged from various stable isotopes many experiments at high low energy areas. Originally...

Efficient primary ion sources at ISOL facilities normally produce singly charged ions. This limits the usable mass range for postacceleration due to A∕Q acceptance of accelerator. At ISAC facility TRIUMF an below 7 is desired avoid further stripping. Thus, charge state breeding necessary if higher masses are be accelerated. A 14 GHz ECRIS “PHOENIX” booster has been chosen as a breeder. In order investigate and optimize its performance under conditions it set up test bench equipped with...

A prototype surface ionization source coupled with a fixed-geometry extraction electrode system was commissioned on the Isotope Separator Accelerator (ISAC) ion test stand at TRIUMF. The suitability of and for use in ISAC facility determined by series emittance measurements extracted beams. optics were successfully using source; mass-separated beams demonstrated that second- third-order beam aberrations (introduced magnetic dipole mass separation) could be corrected multipole electrostatic...

We have reported a 15 mA dc H− multicusp source at the sixth International Ion Source Conference in 1995 Whistler. Since then, beam has been further upgraded to 20 for 25 kV extraction. The D− output of new cusp also measured and 12.5 energies. An 8 peak current with 0.5 π mm mrad normalized 4 rms emittance obtained. Special attention was given effects gas flow, pumping speed, neutralization on operation which is used injection into MeV cyclotron. At present, we are making an effort test...

We describe a dc volume H− source, employing multicusp plasma confinement, which has been constructed for use with the TRIUMF cyclotron. An extracted current density of 12 mA/cm2 obtained. Beam emittance and brightness have measured as function beam fraction. values normalized emittances order 0.2 πmm mrad at 81% fraction are typically 10 mA/(mm mrad)2 [equivalent rms B=223 mrad)2].

A 2.45 GHz ECR ion source for the ISAC on-line operation is being tested at TRIUMF test stand prior to its installation in radioactive beam production target module. Steps were taken design stage ensure short transient time and high ionization efficiency single charged ions. Further considerations given radiation hardness, reliability, remote handling capabilities. Transient was measured using an ultrafast piezoelectric valve. Efficiencies calibrated gas leaks of stable isotopes such as...

At TRIUMF, H− ion sources have been characterized on a teststand to improve the understanding of their performance. Measured beam characteristics such as current, emittance, and e∕H− ratio were correlated with source conditions function relevant plasma parameters. Plasma densities, temperatures, potentials measured Langmuir probe properties for different confining magnetic fields values arc power gas pressure. The mechanism extraction was studied by correlating potential profiles...

The performance of charge state breeding with an electron cyclotron resonance (ECR) ion source intended to increase the online produced radioactive ions at ISAC facility TRIUMF has been investigated. A 14GHz PHOENIX from PANTECHNIK setup on a test bench. Singly charged have several sources typical for on-line operation and were injected into breeder. main purpose tests optimization efficiency desired state. Maximum efficiencies reached so far standard one step deceleration in front plasma...

A microwave-driven ion source being developed at TRIUMF is designed to produce stable, reliable, and gas-efficient negative positive beams for cyclotrons other accelerators. The has been tested H− achieved 2.1 mA 0.25 π mm mrad normalized emittance 500 W of input power a frequency 2.45 GHz. was operated over one month without interruption beam stability test demonstrated 2.5% the period. For extraction H+, He+, N+, Ar+ species have studied. 2 N+ obtained 0.3 1 kW power. density as high 7...

A 2.45 GHz electron cyclotron resonance (ECR) ion source with a single mode resonator is being developed to produce high efficient charged beams from exiguous gaseous elements. The intended short and long half-life radioactive as well stable for low energy experiments at ISAC [J. M. Poutissou, Proceedings of the Workshop (1994)]. It obvious that beam production, gas transient time overall ionization efficiency are most important parameters. measured using ultrafast peizoelectric valve which...

An ECR ion source is converted to produce a beryllium fluoride beam, which will be stripped Be+27 beam and used in Be7(p,γ)8B experiments at ISAC. The consists of an injection chemical chamber plasma chamber. Chemically purified (99.9%) BeO placed the can heated up 1000 °C. A CF4 leak connected that serves as for reaction BeF2. BeF2 then injected into hot electron layer region enhance ionization efficiency. detailed description, parameters efficiency measurements are presented this paper.

Several H−/D− dc sources employing multicusp confinement and magnetic filtering to enhance production have been designed, built, tested. Source performance in terms of beam output, emittance merit as functions arc current, strength, plasma volume, exit diameter, extraction lens configuration studied detail. At present, up 9 mA H− 3 D− beams with a normalized 0.44 mm mrad for extracted. A number are tailored fit the requirements individual projects. In this article, general description source...

Two versions of injection line matching sections between the external ion source and spiral inflector are used for compact cyclotrons developed at TRIUMF in cooperation with Ebco Technologies. The 30 MeV model adopts a solenoid-doublet (SQQ) version while 19 unit takes four quadrupole/two quadrupole (4Q/2Q) option. Both use same type H cusp an identical inflector-central region combination. A comparison has been made these two systems, terms DC transmission RF acceptance as function source's...

An on-line emittance–mass scanner (EMS), with a size of 10 cm×10 cm×8 cm, has been developed for use low energy and light ion beams (A<40) at TRIUMF. Computerized data acquisition procession give the rms emittances, intensities, contour plots each beam component. The angular resolution is ±1.0 mrad, maximum divergence component that can take 140 mrad. Some experimental results measurement are given. comparison between shapes values emittance measured by both EMS in good agreement.

A radiation hard 2.45 GHz ECR source has been installed in the ISAC target station. The ion with its 8–60 kV extraction system is coupled to radioactive isotope production via a short transfer tube. volatile isotopes produced by bombarding 500 MeV proton beam, are ionized and accelerated at system. reengineered withstand dose rate of 105 Gy/h from activation MeV, 100 mA beam. whole assembly located beneath 2 m thick steel shielding structure. Design aspect initial results obtained during...

At CIAE, a 100MeV H− cyclotron (CYCIAE-100) is under design and construction. A central region model (CRM) was built for various experimental verifications the CYCIAE-100 project research development of high current injection to accelerate milliampere beam. The multicusp source in 2003 has been improved recently make operation more stable. new line axial low energy designed constructed CRM cyclotron.

A 2.45 GHz electron cyclotron resonance ion source has been designed and built to ionize radioactive atoms produce single charged beams for the isotope separator accelerator at TRIUMF. The is characterized by its short axial length (8 cm) small pair of magnetic coils (diam=φ26 placed adjacent cavity. diameter quartz tube inserted in cavity confine plasma a volume shorten total transient time exotic gaseous elements with intermediate half life. computer code POISSON used design coils....