Universität zu Köln

Schiffer, M., Machhart, O., Priller, A., Herb, S., Hackenberg, G., Heinze, S., Martschini, M., Strub, E., Dunai, T., Golser, R. and Dewald, A. (2022). An advanced radio-frequency quadrupole ion cooler for accelerator mass spectrometry. Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms, 528. S. 27 - 34. AMSTERDAM: ELSEVIER. ISSN 1872-9584

Full text not available from this repository.

Abstract

An advanced radio-frequency quadrupole (RFQ) ion cooler was developed for accelerator mass spectrometry to use element-selective laser photodetachment and ion-molecule reactions for isobar suppression. The system will be installed as a central part of the new Anion Laser Isobar Separator (ALIS) at the 6 MV AMS system of CologneAMS.The new RFQ design intends to solve the technical challenge of the deceleration and trapping of heavy molecular ion beams with high emittance. Therefore, an elliptical injection electrode was developed to slow down the ions far away from the central entrance aperture. A new and easy-to-manufacture guide-field assembly was developed. For this purpose, diagonally-split cylindrical surface electrodes are capacitively coupled to a core rod that is carrying the RF signal. Consequently, only low DC voltages are needed to create a gradually changing potential in the longitudinal direction. The RFQ and the acceleration electrodes are installed in a self-aligned structure.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schiffer, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Machhart, O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Priller, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Herb, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hackenberg, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Heinze, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Martschini, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Strub, E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dunai, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Golser, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dewald, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-665884
DOI:	10.1016/j.nimb.2022.07.010
Journal or Publication Title:	Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
Volume:	528
Page Range:	S. 27 - 34
Date:	2022
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1872-9584
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SELECTIVE LASER PHOTODETACHMENT; AMS MEASUREMENTS; BEAM COOLER; SUPPRESSION; PROJECT Multiple languages Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/66588