An adjustable thickness Li/Be target for fragmentation of 4-kW heavy ion beams

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:204

Article; Proceedings Paper

Nolen, JA ; Reed, CB ; Hassanein, A ; Novick, VJ ; Plotkin, P ; Specht, JR ; Morrissey, DJ ; Ottarson, JH ; Sherrill, BM

关键词: radioactive beam;    heavy ion fragmentation;    high power target;    liquid lithium;   

DOI  :  10.1016/S0168-583X(03)00507-X

来源: Elsevier

【 摘 要 】

As a first step towards developing liquid lithium target technology for a future high-power nuclear physics fragmentation facility, an adjustable thickness Li/Be hybrid target is being constructed for use at the NSCL. This target will use beryllium windows with flowing lithium. The lithium serves as a part of the target as well as the coolant. Up to I kW of beam power is dissipated in the target and is carried away by the recirculating liquid lithium loop. It is designed for high power beams in the mass range from oxygen to calcium. Tapered beryllium windows combined with a uniform thickness lithium channel gives an overall target thickness ranging from 0.7 to 3 g/cm(2), which is adjusted by moving the target vertically. The target system design is complete and is described in this paper. (C) 2003 Elsevier Science B.V. All rights reserved.

【 授权许可】

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