HIAT2018 - List of Authors (Mao, L.J.)

Paper	Title	Page
MOZBA01	Present Status of HIRFL Complex in Lanzhou	18
	Y.J. Yuan, D.Q. Gao, L.Z. Ma, L.J. Mao, R.S. Mao, J. Meng, Y.W. Su, L.T. Sun, Y.Y. Wang, J.X. Wu, J.W. Xia, G.Q. Xiao, Z. Xu, J.C. Yang, W.Q. Yang, Q.G. Yao, X. Yin, B. Zhang, W. Zhang, H.W. Zhao, Z.Z. Zhou IMP/CAS, Lanzhou, People’s Republic of China
	Heavy Ion Research Facility in Lanzhou (HIRFL) is a cyclotron, synchrotron and storage ring accelerator complex, which accelerates ions of hydrogen to uranium from low to medium energy. Since the complete of HIRFL-CSR project in 2008, under the support from CAS, efforts have been put to improve the infrastructure for machine performance, including improvement of EMC environments, power distribution stations, PS stations, cooling water system, RF system of cyclotrons and adoption of EPICS control system, etc. New generation SC ECR source-SECRAL2 with high performance is put into operation. Experiments of electron cooling with pulsed electron beam are performed for the 1st time. Stochastic cooling and laser cooling are realized in CSRe. The performance of RIBLL2 and CSRe are gradu-ally improved. The ISO mode of CSRe for precise atomic mass measurements is well studied and reaches state-of-art mass resolution of storage rings. The operation status and enhancement plan of HIRFL will be briefly reported in this paper.
	Slides MOZBA01 [37.124 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2018-MOZBA01
About •	paper received ※ 20 October 2018 paper accepted ※ 23 October 2018 issue date ※ 05 November 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPB16	Single Heavy Ion Bunch Generation Scheme in BRing at HIAF	61
	D.Y. Yin, H. Du, L.J. Mao, G.D. Shen, J.C. Yang IMP/CAS, Lanzhou, People’s Republic of China
	As the Booster Ring of the High Intensity Heavy-ion Accelerator Facility (HIAF), BRing is a synchrotron which can be able to accumulate and accelerate full ion species provided by iLinac to required energy with RF acceleration system. When accelerating uranium beam(e.g. 238U³⁵⁺), the variation range of the kinetic energy is 17MeV/u-830 MeV/u, and the corresponding revolution frequency range is 0.099MHz-0.447MHz. Because of the low frequency limit value of 0.099MHz, the RF frequency of RF cavity should be h(harmonic number) times of ,thus, there will have h(is equal to harmonic number) bunches after acceleration. To satisfy the extraction requirement, the accelerated multiple bunches should be recollected in one bunch by means of longitudinal manipulation. The different single bunch generation method of debunching and bunch merging are investigated separately, and the beam parameters in different cases are obtained, meanwhile, the optimized RF program during the debunching and bunch merging are presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2018-MOPB16
About •	paper received ※ 24 October 2018 paper accepted ※ 14 November 2019 issue date ※ 05 November 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Present Status of HIRFL Complex in Lanzhou

18

Y.J. Yuan, D.Q. Gao, L.Z. Ma, L.J. Mao, R.S. Mao, J. Meng, Y.W. Su, L.T. Sun, Y.Y. Wang, J.X. Wu, J.W. Xia, G.Q. Xiao, Z. Xu, J.C. Yang, W.Q. Yang, Q.G. Yao, X. Yin, B. Zhang, W. Zhang, H.W. Zhao, Z.Z. Zhou
IMP/CAS, Lanzhou, People’s Republic of China

Heavy Ion Research Facility in Lanzhou (HIRFL) is a cyclotron, synchrotron and storage ring accelerator complex, which accelerates ions of hydrogen to uranium from low to medium energy. Since the complete of HIRFL-CSR project in 2008, under the support from CAS, efforts have been put to improve the infrastructure for machine performance, including improvement of EMC environments, power distribution stations, PS stations, cooling water system, RF system of cyclotrons and adoption of EPICS control system, etc. New generation SC ECR source-SECRAL2 with high performance is put into operation. Experiments of electron cooling with pulsed electron beam are performed for the 1st time. Stochastic cooling and laser cooling are realized in CSRe. The performance of RIBLL2 and CSRe are gradu-ally improved. The ISO mode of CSRe for precise atomic mass measurements is well studied and reaches state-of-art mass resolution of storage rings. The operation status and enhancement plan of HIRFL will be briefly reported in this paper.

Slides MOZBA01 [37.124 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2018-MOZBA01

About •

paper received ※ 20 October 2018 paper accepted ※ 23 October 2018 issue date ※ 05 November 2019

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPB16

Single Heavy Ion Bunch Generation Scheme in BRing at HIAF

61

D.Y. Yin, H. Du, L.J. Mao, G.D. Shen, J.C. Yang
IMP/CAS, Lanzhou, People’s Republic of China

As the Booster Ring of the High Intensity Heavy-ion Accelerator Facility (HIAF), BRing is a synchrotron which can be able to accumulate and accelerate full ion species provided by iLinac to required energy with RF acceleration system. When accelerating uranium beam(e.g. 238U³⁵⁺), the variation range of the kinetic energy is 17MeV/u-830 MeV/u, and the corresponding revolution frequency range is 0.099MHz-0.447MHz. Because of the low frequency limit value of 0.099MHz, the RF frequency of RF cavity should be h(harmonic number) times of ,thus, there will have h(is equal to harmonic number) bunches after acceleration. To satisfy the extraction requirement, the accelerated multiple bunches should be recollected in one bunch by means of longitudinal manipulation. The different single bunch generation method of debunching and bunch merging are investigated separately, and the beam parameters in different cases are obtained, meanwhile, the optimized RF program during the debunching and bunch merging are presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2018-MOPB16

About •

paper received ※ 24 October 2018 paper accepted ※ 14 November 2019 issue date ※ 05 November 2019

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)