Wolong Liu
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View article: Research on longitudinal dynamics and design of RF parameters of synchrotron for XiPAF-upgrading project
Research on longitudinal dynamics and design of RF parameters of synchrotron for XiPAF-upgrading project Open
Xi ’an 200 MeV Proton Application Facility (XiPAF) will be upgraded to proton and heavy ion synchrotron recently. In order to ensure the enough life of heavy ion beam, the synchrotron requires ultra-high vacuum, and the designed static vac…
View article: Urban rainfall characteristics and permeable pavement structure optimization for sponge road in North China
Urban rainfall characteristics and permeable pavement structure optimization for sponge road in North China Open
Permeable asphalt pavement types are generally selected according to local traffic volume and rainfall intensity. This study focuses on the design of the pavement drainage asphalt pavement combination scheme by analyzing the rainfall chara…
View article: Injection Optimization and Study of XiPAF Synchrotron
Injection Optimization and Study of XiPAF Synchrotron Open
The synchrotron of XiPAF (Xi’an 200MeV proton application Facility) is a compact proton synchrotron, which using H⁻ stripping injection and phase space painting scheme. Now XiPAF is under commissioning with some achievements, the current i…
View article: XiPAF Synchrotron Slow Extraction Commissioning
XiPAF Synchrotron Slow Extraction Commissioning Open
Xi’an 200 MeV Proton Application Facility (XiPAF) is a project to fulfill the need for the experimental simulation of the space radiation environment. It comprises a 7 MeV H⁻ linac, a 60~230 MeV proton synchrotron, and experimental station…
View article: Quadrupole Magnet Design for a Heavy-Ion IH-DTL
Quadrupole Magnet Design for a Heavy-Ion IH-DTL Open
Xi’an Proton Application Facility (XiPAF) will be upgraded to provide heavy-ion beams with a heavy-ion injector. The injector consists of an ECR heavy-ion source, a Low Energy Beam Transport line (LEBT), a Radio Frequency Quadrupole (RFQ),…
View article: Experiment and Simulation Study on the Capture and Acceleration Process of XiPAF Synchrotron
Experiment and Simulation Study on the Capture and Acceleration Process of XiPAF Synchrotron Open
The beam commissioning of the capture and acceleration process on the XiPAF (Xi’an 200MeV Proton Application Facility) synchrotron has been carried out. The efficiency of the experiment results has been compared with the simulation results…
View article: Beam Commissioning of XiPAF Synchrotron
Beam Commissioning of XiPAF Synchrotron Open
XiPAF (Xi’an 200MeV Proton Application Facility) is a project to fulfill the need for the experimental simulation of the space radiation environment. It comprises a 7 MeV H⁻ linac, a 60-230 MeV proton synchrotron, and experimental stations…
View article: Overall Concept Design of a Heavy-Ion Injector for XiPAF-Upgrading
Overall Concept Design of a Heavy-Ion Injector for XiPAF-Upgrading Open
A heavy-ion injector can be used for SEE study. In this paper, the primary beam dynamics design of a heavy-ion injector for the XiPAF upgrade is presented. The injector consists of an ECR heavy-ion source, a LEBT, an RFQ, and a DTL. The ma…
View article: Beam Commissioning of a 325 MHz Proton IH-DTL at XiPAF
Beam Commissioning of a 325 MHz Proton IH-DTL at XiPAF Open
The Inter-Digital H-mode Drift Tube Linac (IH-DTL) is widely used as the main component of injectors for medical synchrotrons. This paper describes the beam commissioning of a compact 325 MHz IH-DTL with modified KONUS beam dynamics at Tsi…
View article: Sponge roads: the permeable asphalt pavement structures based on rainfall characteristics in central plains urban agglomeration of China
Sponge roads: the permeable asphalt pavement structures based on rainfall characteristics in central plains urban agglomeration of China Open
Permeable asphalt pavement should be selected according to the rainfall characteristics of the project site, so as to improve the permeable performance and ensure the bearing capacity of the pavement structure. Therefore, taking a city in …
View article: Four-dimensional phase space measurement using multiple two-dimensional profiles
Four-dimensional phase space measurement using multiple two-dimensional profiles Open
Knowledge of 4D beam phase space is essential to characterize beam motion along a beamline which includes elements that couple the transverse planes. A 4D phase space measurement method using multiple 2D profiles is proposed in this paper.…
View article: An Optimization Method of the Nose-cone Buncher Cavity
An Optimization Method of the Nose-cone Buncher Cavity Open
The nose-cone buncher cavity is widely used on proton accelerators. It's important to properly optimize the cavity geometry for fine RF performance. Howev-er, currently the optimization is usually carried out manually and the criteria are …
View article: Development Progress of the H⁺/H⁻ Linear Accelerators at Tsinghua University
Development Progress of the H⁺/H⁻ Linear Accelerators at Tsinghua University Open
We present, in this paper, the development progress of the 13MeV proton linac for the Compact Pulsed Hadron Source (CPHS), and the 7MeV H⁻ linac injector for the synchrotron of the Xi'an 200MeV Proton Application Facility (XiPAF).
View article: Overall Design and Progress of XiPAF Project
Overall Design and Progress of XiPAF Project Open
Xi an Proton Application Facility (XiPAF) which consists of one 230 MeV proton accelerator and irradiation stations, will be constructed in Xi an city, Shaanxi, China. The facility is composed of a 230 MeV synchrotron, a 7 MeV H⁻ linac inj…