A new beam profile monitor and time of flight system for CologneAMS

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• 作者：G. Pascovici^a ; A. Dewald^a ; ^b ; ^{dewald@ikp.uni-koeln.de} ; S. Heinze^a ; ^{heinze@ikp.uni-koeln.de} ; L. Fink^a ; C. Mü ; ller-Gatermann^a ; M. Schiffer^a ; C. Feuerstein^a ; M. Pfeiffer^b ; J. Jolie^b ; S. Thiel^b ; K.O. Zell^b ; O. Arnopolina^b ; F. von Blanckenburg^c
• 关键词：CologneAMS ; Tandetron accelerator ; Beam profile detectors ; Time of flight
• 刊名：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：294
• 期：Complete
• 页码：410-415
• 全文大小：930 K

文摘

A complex beam detector consisting of a high-resolution beam profile monitor (BPM) and a time of flight (TOF) spectrometer with tracking capabilities was designed especially for the special needs of the Cologne center for accelerator mass spectrometry (CologneAMS). The beam detector assembly is designed to match the beam specifications of the 6 MV Tandetron AMS setup and its data acquisition system. It will have a reconfigurable structure, either as a fast TOF subsystem with a ca. 10 cm² equivalent active area, or as a more complex BPM-TOF detector with beam tracking capabilities and a larger active area (16 cm²). The purpose of this detector is to suppress background during spectrometry of heavy ions (U, Cm, Pu, Am etc.) and to suppress isobaric interferences such as ³⁶S in ³⁶Cl spectra.