Gas stopping and reacceleration techniques at the Facility for Rare Isotope Beams (FRIB)✩

被引：4
|
作者：
Villari, A. C. C. [1 ]
Bollen, G. [1 ]
Henriques, A. [1 ]
Lapierre, A. [1 ]
Nash, S. [1 ]
Ringle, R. [1 ]
Schwarz, S. [1 ]
Sumithrarachchi, C. S. [1 ]
机构：
[1] Michigan State Univ, Facil Rare Isotope Beams, 640 South Shaw Line, E Lansing, MI 48824 USA
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2023年 / 541卷
基金：
美国国家科学基金会;
关键词：
Rare isotope science; Rare isotope production; Stopped beams; RIB; Reacceleration; Nuclear physics;
D O I：
10.1016/j.nimb.2023.05.037
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The Facility for Rare Isotope Beams (FRIB) at Michigan State University provides a wide range of beams and energies for science with fast, stopped and reaccelerated rare-isotope beams. FRIB was commissioned in 2022 with the science program beginning in May 2022. The combination of fast beams followed by gas stopping of rare-isotope beams together with reacceleration is unique to FRIB. Stopping techniques and beam manipulation at very-low energies are important to slow down fast beams for use in either stopped-beam experimental devices, or subsequent injection in the reaccelerator for experiments at energies ranging from 0.3 MeV/u to 12 MeV/u, depending on the Q/A of the ion. Innovative stopped-beam techniques to optimize the stopping and extraction efficiencies across a wide range of atomic numbers, as well as to reduce contamination and increase extraction speed, were developed. Reacceleration of those beams involve cooling, bunching, charge breeding and acceleration by a state-of-the-art superconducting reaccelerator, ReA. In this contribution we present the latest results of various gas stoppers and techniques to eliminate contaminants after reacceleration by the ReA.
引用
收藏
页码：350 / 354
页数：5
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