Longitudinal electron cooling experiments at HIRFL-CSRe

Mao, Lijun; Zhao, He; Yang, Xiao-Dong; Li, J.; Jiang, Yang; Yuan, Y.J.; Parkhomchuk, V. V.; Reva, V. B.; Ma, Xinwen; Yan, Tian‐Ci; Tang, M.T.; Xia, Ji‐Bao

doi:10.1016/j.nima.2015.10.095

Cited by 18 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The molecular hydrogen-gas target has a typical diameter of about 4 mm and a thickness of about 10 12 atoms/cm 2 [29]. The energy loss of the ions due to collisions with the target and residual gas was compensated by the electron cooling [30].…”

Section: Methodsmentioning

confidence: 99%

Matter radius of Kr78 from proton elastic scattering at 153 MeV

Zhang¹,

Ma²,

Huang³

et al. 2023

Phys. Rev. C

View full text Add to dashboard Cite

Small-angle differential cross sections of proton elastic scattering off 78 Kr with a collision energy of 152.7 MeV/u were measured at the experimental Cooler Storage Ring of the Heavy Ion Research Facility in Lanzhou (HIRFL-CSR). Low energy recoil protons from the elastic scattering were counted by a silicon-strip detector to determine relative differential cross sections. A model-dependent root-mean-square matter radius of 4.16(12) fm for the 78 Kr nucleus was deduced by employing the Glauber model. Compared to the proton radius of 4.13 fm for 78 Kr, our center value of matter radius is slightly larger. This finding in 78 Kr is opposite to the known results of 76,80 Kr, where the matter radii are smaller than the corresponding proton radii. However, considering the relatively large radius error of 78 Kr, the difference is not statistically significant, and further experiments are necessary.

show abstract

Section: Methodsmentioning

confidence: 99%

Matter radius of Kr78 from proton elastic scattering at 153 MeV

Zhang¹,

Ma²,

Huang³

et al. 2023

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

“…One example is that employed by the GSI-ESR and others in which a beam of co-moving electrons is injected into the primary particle beam. [113][114][115][116] Coulomb interactions between the electrons and the beam result in a thermal equilibrium prior to the removal of the electrons from the beam, having absorbed some of the transverse momentum of the beam.…”

Section: Storage Rings Methodsmentioning

confidence: 99%

Nuclear mass measurements with radioactive ion beams

Famiano

2019

Int. J. Mod. Phys. E

View full text Add to dashboard Cite

Received X XXXXX XXXX Revised XX XXXXX XXXX Nuclear masses are the most fundamental of all nuclear properties, yet they can provide a wealth of knowledge, including information on astrophysical sites, constraints on existing theory, and fundamental symmetries. In nearly all applications, it is necessary to measure nuclear masses with very high precision. As mass measurements push to more short-lived and more massive nuclei, the practical constraints on mass measurement techniques become more exacting. Various techniques used to measure nuclear masses, including their advantages and disadvantages are described. Descriptions of some of the world facilities at which the nuclear mass measurements are performed are given, and brief summaries of planned facilities are presented. Future directions are mentioned, and conclusions are presented which provide a possible outlook and emphasis on upcoming plans for nuclear mass measurements at existing facilities, those under construction, and those being planned.

show abstract

“…自2007年建成以来, 被广泛应用于测量原子核质量 [25,26] 和离子-原子分子碰撞谱学 [27] . 为拓展兰州重离子冷却储存环国家实验室的研究领域, 中国科学院近代物理研究所自 CSRe直线段分别对称地装配着电子冷却装置 [28] 和气体内靶系统 [29] , 通过前者提供的单能电子束可减小 [25,26] , 便于开展高电荷态离子衰变寿命的直接测量 [30] . 储存束高的循环频率能在一定程度上弥补气体内靶靶密度低的缺陷, 提高反应亮度 [17] .…”

Section: 国外研究现状unclassified