The Argonne tandem as injector to a superconducting linac

doi:10.1016/0029-554X(81)90874-0

Nuclear Instruments and Methods

Volume 184, Issue 1, 15 May 1981, Pages 233-238

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Abstract

The Argonne tandem uses pelletron chains, NEC accelerator tubes, and a dual closed-corona system. Its main function is to be an injector for a superconducting linear accelerator. As long as the transverse and longitudinal emittances are within the acceptance of the linac, the output beam quality of the tandem-linac system is essentially determined by the tandem. The sensitivity of the linac to the longitudinal emittance ΔEΔt of the incident beam makes the output beam quality dependent on the negative-ion velocity distribution in the source, transit-time effects in the tandem, molecular-beam dissociation, and stripper-foil uniformity. In this paper we discuss these beam-degrading effects.

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Cited by (2)

Operational experience of the atlas accelerator
1990, Nuclear Inst. and Methods in Physics Research, A
The ATLAS accelerator consists of a HVEC model FN tandem accelerator injecting into a linac of independently-phased niobium superconducting resonators. The accelerator provides beams with masses 6⩽A⩽127 and with energies ranging up to 20 MeV/A for the lightest ions and 4 MeV/A for the heaviest ions. Portions of the linac have been in operation since 1978 and, over the last decade, more than 35000 h of operating experience have been accumulated. The long-term stability of niobium resonators, and their feasibility for use in heavy-ion accelerators is now well established.
Accelerator mass spectrometry at ATLAS
1989, Nuclear Inst. and Methods in Physics Research, B
The special conditions required to run AMS experiments at a large heavy-ion accelerator such as ATLAS are discussed. Operational schemes for the current tandem-linac combination and their application to measurements of the long-lived radioisotopes ⁴¹Ca, ⁶⁰Fe and ¹²⁶Sn are described. A brief outlook of future possibilities for AMS experiments with the new positive ion injector of ATLAS is presented.

^∗: Work performed under the auspices of the US Department of Energy.

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Nuclear Instruments and Methods

The Argonne tandem as injector to a superconducting linac

Abstract

Nucl. Instr. and Meth.

IEEE Trans. Mag.

Int. J. Mass Spectr. Ion Phys.

Operational experience of the atlas accelerator

Accelerator mass spectrometry at ATLAS