Internal gas-jet target for the ESR at GSI
Internal gas-jet target for the ESR at GSI
复制标题
GSI 的 ESR 内部气体喷射靶
DOI：
10.1016/0168-9002(89)90114-9
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发表时间：
1989
影响因子：
1.4
通讯作者：
C. Treffert
中科院分区：
文献类型：
--
作者：
A. Gruber;W. Bourgeois;B. Franzke;A. Kritzer;C. Treffert
它计划在GSI正在建设的实验存储环(ESR)中进行环内实验。为了进行这些实验，设计了一种气体喷射靶，它将在3-5 mm的相互作用长度内提供1011-1014 cm−3的分子密度。该设计包括对目标气体的泵送、清洗和回收。最关键的边界条件是电子自旋共振的超高真空系统(基本压力为10−9PA)，以及所需的沿离子束方向的大口径(250×70 mm~2)。目标还必须应对高离子束电流。此外，需要一个大的立体角来观察相互作用区。
It is planned to perform in-ring experiments in the Experimental Storage Ring (ESR) which is under construction at GSI. For these experiments a gas-jet target has been designed which shall deliver a molecular density of 1011–1014cm−3within an interaction length of 3–5 mm. The design includes pumping, cleaning, and recycling of the target gas. The most critical boundary condition is the UHV system of the ESR (base pressure 10−9Pa) in combination with the required large aperture along the ion-beam direction (250×70 mm2). The target also has to cope with high ion-beam currents. Furthermore a large solid angle is required to observe the interaction region.