NDLI: RF measurement summary of ISAC DLT tanks and DTL bunchers

Content Provider	IEEE Xplore Digital Library
Author	Mitra, A.K. Bricault, P. Fong, K. Laxdal, R.E. Poirier, R.L. Vasyuchenko, A.
Copyright Year	2001
Description	Author affiliation: TRIUMF, Vancouver, BC, Canada (Mitra, A.K.)
Abstract	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 /spl ges/1/6 from 0.153 MeV/u to 1.53 MeV/u. The accelerating tanks are five independent interdigital H type rf structures with high shunt impedances. The three bunchers are triple gap split-ring 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.
Sponsorship	U.S. Dept. Energy
Starting Page	951
Ending Page	953
File Size	698863
Page Count	3
File Format	PDF
ISBN	0780371917
DOI	10.1109/PAC.2001.986536
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-06-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Acceleration Tuners Impedance Voltage Power measurement Ion beams Linear particle accelerator Resonant frequency Tuning
Content Type	Text
Resource Type	Article

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RF Measurement Summary of ISAC DTL Tanks and DTL Bunchers

Tuning of the RF field of the DTL for the J-PARC

Tuning of 20MeV PEFP DTL

High power conditioning of the DTL for J-PARC

Beam commissioning and first operation of the ISAC DTL at TRIUMF

Completion and operations of ISAC-I and extension to ISAC-II

RF structures for linear acceleration of radioactive beams

Unexpected matching insensitivity in DTL of GTA accelerator

Beam quality and operational experience with the superconducting LINAC at the ISAC II rib facility

RF measurement summary of ISAC DLT tanks and DTL bunchers

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RF Measurement Summary of ISAC DTL Tanks and DTL Bunchers

Tuning of the RF field of the DTL for the J-PARC

Tuning of 20MeV PEFP DTL

High power conditioning of the DTL for J-PARC

Beam commissioning and first operation of the ISAC DTL at TRIUMF

Completion and operations of ISAC-I and extension to ISAC-II

RF structures for linear acceleration of radioactive beams

Unexpected matching insensitivity in DTL of GTA accelerator

Beam quality and operational experience with the superconducting LINAC at the ISAC II rib facility

RF measurement summary of ISAC DLT tanks and DTL bunchers