Development, fabrication and test of triple gap split-ring bunchers for the TRIUMF ISAC facility

Vasyuchenko, A.; Feschenko, A.V.; Kvasha, A.I.; Menshov, Alexander; Paramonov, V.; Bylinsky, Y.; Dutto, G.; Laxdal, Robert; Mitra, A.K.; Poirier, R.

doi:10.1109/pac.2001.986546

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…Longitudinal focussing is provided by independently phased, triple gap, split-ring resonator structures [5] positioned before the second, third and fourth IH tanks. Quadrupole triplets placed after each IH tank maintain transverse focussing.…”

Section: Introductionmentioning

confidence: 99%

Beam commissioning and first operation of the ISAC DTL at TRIUMF

Laxdal

Dutto²,

Fong³

et al.

PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268)

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The post-accelerator for the ISAC radioactive beam facility combines a 35.4 MHz RFQ and a variable energy 106 MHz DTL. The ISAC DTL is designed to accelerate ions with 3 ≤ A/q ≤ 6 to energies fully variable from 0.153 to 1.53 MeV/u. The unique separated function design allows efficient room-temperature acceleration and full energy variability with no degradation in beam quality. The first stable beams were accelerated in the DTL in Dec. 2000 with full commissioning in the first months of 2001. Test results with stable beam will be reported and compared to beam simulation results. In addition the initial operating experience with stable beam delivery is reported.

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Section: Introductionmentioning

confidence: 99%

Beam commissioning and first operation of the ISAC DTL at TRIUMF

Laxdal

Dutto²,

Fong³

et al.

PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268)

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RF measurement summary of ISAC DLT tanks and DTL bunchers

Mitra

Bricault²,

Fong³

et al.

PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268)

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In the ISAC radioactive ion beam facility at TRIUMF, a variable energy drift tube linac (DTL) is used to accelerate ions with a charge to mass ratio 2 116 from 0.153 MeVIu to 1.53 MeVIu. The accelerating tanks are five independent interdigital H type rf structures with high shunt impedances. The three bunchers are triple gap splitring resonators placed between the first four accelerating tanks. Each structure is equipped with fine tuners to compensate for frequency drift during operation. Coarse tuners are installed in the DTL cavities to bring their resonant frequencies within the tuning range of the fine tuners. Except for the loop size, the same rf power couplers have been used in all the structures. All these structures operate at 106.08 MHz and have been tested at power. Signal level measurements have been done to characterize their rf properties. Drift tube gap voltages were measured with x-ray field emissions and compared with voltages estimated from input power and shunt impedance. RF power losses in the DTL tank walls were higher than calculated and hence additional cooling was provided. The results of the signal and power measurements are summarized in this paper. Figure 1 : Photograph of DTL tank 2 during assembly.

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Development, fabrication and test of triple gap split-ring bunchers for the TRIUMF ISAC facility

Cited by 2 publications

References 4 publications

Beam commissioning and first operation of the ISAC DTL at TRIUMF

Beam commissioning and first operation of the ISAC DTL at TRIUMF

RF measurement summary of ISAC DLT tanks and DTL bunchers

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