K-38 isomer production via fast fragmentation

doi:10.1103/PhysRevAccelBeams.21.121301

	K-38 isomer production via fast fragmentation
	Chipps, K. A.1; Kozub, R. L.2; Sumithrarachchi, C.3; Ginter, T.3; Baumann, T.3; Lund, K.3; Lapierre, A.3; Villari, A.3; Montes, F.3,4; Jin, S.3,4,5
刊名	PHYSICAL REVIEW ACCELERATORS AND BEAMS
	2018-12-06
卷号	21
ISSN号	2469-9888
DOI	10.1103/PhysRevAccelBeams.21.121301
英文摘要	In radioactive ion beam experiments, beams containing isomers can be of interest in probing nuclear structure and informing astrophysical reaction rates. While the production of mixed in-flight ground state and isomer beams using nucleon transfer can be generally understood through distorted wave Born approximation methodology, low-spin isomer production via fast fragmentation is relatively unstudied. To attain a practical understanding of low-spin isomer production using fast fragmentation beams, a test case of K-38/K-38m was studied at the National Superconducting Cyclotron Laboratory's ReAccelerated Beam facility. Starting from LISE++ predictions, the fragmentation momentum distribution was sampled to determine isomer production. In addition, the effects of the gas stopper gradient and charge breeding times were examined. In the case of K-38, isomer production peaks at similar to 57%. This maximum is observed just off the LISE++ predicted optimum magnetic rigidity, with only small losses in beam intensity within a few percent of this optimum rigidity setting. Control of the isomer fraction was also achieved through the modification of charge breeding times. Fast fragmentation appears to be a feasible method for production of low-spin isomeric beams, but additional study is necessary to better describe the mechanism involved.
资助项目	National Science Foundation[PHY-1430152] ; National Science Foundation[PHY-1565546]
WOS关键词	POPULATION
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000452315700001
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/64450]
专题	中国科学院近代物理研究所
通讯作者	Chipps, K. A.
作者单位	1.Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA 2.Tennessee Technol Univ, Cookeville, TN 38505 USA 3.Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA 4.Michigan State Univ, E Lansing, MI 48824 USA 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 6.Univ Notre Dame, Notre Dame, IN 46556 USA
推荐引用方式 GB/T 7714	Chipps, K. A.,Kozub, R. L.,Sumithrarachchi, C.,et al. K-38 isomer production via fast fragmentation[J]. PHYSICAL REVIEW ACCELERATORS AND BEAMS,2018,21.
APA	Chipps, K. A..,Kozub, R. L..,Sumithrarachchi, C..,Ginter, T..,Baumann, T..,...&Blankstein, D..(2018).K-38 isomer production via fast fragmentation.PHYSICAL REVIEW ACCELERATORS AND BEAMS,21.
MLA	Chipps, K. A.,et al."K-38 isomer production via fast fragmentation".PHYSICAL REVIEW ACCELERATORS AND BEAMS 21(2018).