Low-Z internal target from a cryogenically cooled liquid microjet source

被引：59

作者：

Kuehnel, M. ^{[1
]}

Petridis, N. ^{[1
]}

Winters, D. F. A. ^{[2
,3
]}

Popp, U. ^{[2
]}

Doerner, R. ^{[1
]}

Stoehlker, Th. ^{[2
,3
]}

Grisenti, R. E. ^{[1
,2
]}

机构：

[1] Goethe Univ Frankfurt, Inst Kernphys, D-60438 Frankfurt, Germany

[2] GSI Darmstadt, D-64291 Darmstadt, Germany

[3] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2009年 / 602卷 / 02期

关键词：

Internal target; Liquid expansion; Droplet beam; CLUSTER TARGET; HYDROGEN;

D O I：

10.1016/j.nima.2008.12.212

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We carried out an extensive investigation on the production of cryogenically cooled liquid hydrogen and helium droplet beams at the experimental storage ring at GSI with the goal to achieve high area densities for these low-Z internal targets. Our results show that an area density of up to 10(14) cm(-2) is achieved for both light gases by expanding the liquid through sub-10 mu m diameter nozzles. The achieved area density is comparable with the previous results for the hydrogen internal target and represents an improvement by about four orders of magnitude for the helium target. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：311 / 314

页数：4

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