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CERN Document Server Encontrados 12 registros  1 - 10siguiente  ir al registro: La búsqueda tardó 0.58 segundos. 
1.
The Measurement of Tune and Phase Space at HLS / Yang Yong Li ; Hong Liu, Jian ; Hua Wang, Jun ; Liu, Zu-ping ; Sun Bao Gen ; Zheng, Kai
Tune and phase space online monitor at the electronic storage ring of Hefei Light Source (HLS) have been realized by using of turn-by-turn beam position data. In this paper, we have compared many methods to compute tune and discussed how to choose the best fitting method for our online tune computing [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3114
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2.
HLS Turn-By-Turn System and Its Application / Wang, Jun H ; Li, Wei-min ; Liu, Jian H ; Liu, Zu-ping ; Sun Bao Gen ; Yang Yong Li ; Zheng, Kai
Design and experimental application of the turn-by-turn system of Hefei Light Source (HLS) are presented in this paper. The front-end signal measurement adopts a log-ratio electronics circuitry. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3022
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3.
Development of Measurement and Transverse Feedback System at HLS / Wang, Jun H ; He, Duo-hui ; Li, Wei-min ; Liu, Jian H ; Liu, Zu-ping ; Sun Bao Gen ; Yang Yong Li ; Zheng, Kai ; Zhou, Z R
In order to observe and cure coupled bunch (CB) instabilities caused by the high order modes (HOMs) of the RF cavity and the resistive wall impedance of the Ring vacuum chamber, which were ineluctable during the operation of the accelerator, an observer system characterized by bunch by bunch measurement of transverse ßoscillation and longitudinal synchrotron phase oscillation has been constructed and commissioned at Hefei Light Source (HLS); meanwhile a transverse bunch-by-bunch feedback system is under construction. The design and development of the systems, as well as diagnostics results of machine instabilities will be presented in this paper..
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2974
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4.
Development and Application of Bunch-by-Bunch Measurement System of HLS / Liu, Jian H ; Hua Wang, Jun ; Pei, Y J ; Sun Bao Gen ; Yang Yong Li ; Zheng, Kai
This paper is intended to present the newly implemented wideband (100MHz) bunch oscillation measurement system, which is in nature a different method from the narrow-band (<5MHz) facilities employed before. Basic formalism and implementation details of the system is introduced to illustrate the function of observing coupled bunch instabilities in time and frequency domain. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2932
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5.
A Method to Calibrate Beam Position Monitor at HLS 200 MeV LINAC / Li, Ji-Hao ; Cao, Yong ; He, Duo-hui ; Jin, Kai ; Lu, Ping ; Sun Bao Gen ; Wang, Jianping ; Wang, Yong ; Zheng, P
In order to improve injection efficiency of HLS 200Mev LINAC, we redesign a new strip line beam position monitor system, which is consisted of a strip line structure and a signal processing system. We decide on an online calibration method based on beam to find out the geometry centre displacement and relative gain offset. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2896
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6.
The Study of New Signal Processing Technique in Photon Beam Position Monitors / Lin, Shunfu ; Gao, Hui ; Lu, Ping ; Sun Bao Gen ; Wang, Jigang
A log-ratio signal processing technique in photon beam position monitors (PBPM) was presented in this paper. The main performances (e.g. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.4239
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7.
The Commission of Hefei Light Source After Reconstruction / Xu, Hong-liang ; He, Duo-hui ; Li, Wei-min ; Liu, Gongfa ; Liu, Zu-ping ; Shang, Lei ; Sun Bao Gen ; Wang, Lin
After the new four-kicker injection bump system was mounted, it was found that the magnetic field of four-kicker magnet through the same pulse current is different each other, the reason is which the width of pulse magnet fields is not same, so the four-kickers can not form completely local bump, and produce large global orbit distortion,and lead to beam loss. At last we found that the films of ceramic chambers were not plated evenly. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3967
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8.
Bunch Tracing by Bunch by Bunch Measurement System in HLS / Zheng, Kai ; Hong Liu, Jian ; Hua Wang, Jun ; Li, Wei-min ; Liang Yang, Yong ; Liu, Zu-ping ; Sun Bao Gen
In this paper, we introduce a bunch tracing system which is based on a bunch-by-bunch (BxB) measurement system in Hefei Light Source (HLS), and present the analysis of the experiment results. Using an in-phase gate signal and a double balance mixer to control an external trigger of ADC, we test the reliability of the BxB system. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.719
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9.
Measurement of Some Beam Parameters Using Tune Measurement System for Hls / Sun Bao Gen ; He, Duohui ; Xu, Hongliang ; Lu, Ping ; Wang, Yunfeng ; Gao, Junhua ; Wang, Lin ; Liu, Jianhong
2001 External link: Published version from JACoW
In : 2nd Asian Particle Accelerator Conference, Beijing, China, 17 - 21 Sep 2001, pp.TUP056
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10.
Design of 200mev Energy Spectrum Analytic System of Linac in Nsrl / Lu, Ping ; Sun Bao Gen ; Li, Weimin ; Yu, Xiangkun ; Liu, Zuping ; Pei, Yuanji ; He, Duohui
2001 External link: Published version from JACoW
In : 2nd Asian Particle Accelerator Conference, Beijing, China, 17 - 21 Sep 2001, pp.TUP037
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