A5007505539- Particle Accelerators and Free-Electron Lasers
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Radiation Therapy and Dosimetry
- Particle physics theoretical and experimental studies
- Particle accelerators and beam dynamics
- Nuclear Physics and Applications
- Radiation Effects in Electronics
- Medical Imaging Techniques and Applications
- Superconducting Materials and Applications
- Advanced Radiotherapy Techniques
- Electrical and Bioimpedance Tomography
- CCD and CMOS Imaging Sensors
- Spectroscopy and Laser Applications
- Atomic and Subatomic Physics Research
- Photocathodes and Microchannel Plates
- Nuclear reactor physics and engineering
- Graphite, nuclear technology, radiation studies
- Optical Systems and Laser Technology
- Adaptive optics and wavefront sensing
- Dark Matter and Cosmic Phenomena
- Advanced X-ray and CT Imaging
China Academy of Engineering Physics
2023
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
2022
University of Naples Federico II
2022
Centre National de la Recherche Scientifique
2018-2019
Université Paris-Saclay
2018-2019
Institut National de Physique Nucléaire et de Physique des Particules
2018-2019
Université Paris-Sud
2018-2019
GANIL
2017-2018
Chinese Academy of Sciences
2015-2017
Institute of Modern Physics
2015-2017
Carbon ions offer significant advantages for deep-seated local tumors therapy due to their physical and biological properties.Secondary particles, especially neutrons caused by heavy ion reactions should be carefully considered in treatment process radiation protection.For protection purposes, the FLUKA Code was used order evaluate field at deep tumor room of HIRFL this paper.The neutron energy spectra, dose deposition carbon tissue-like media studied bombardment solid water target 430MeV/u...
The first Radioactive Ion Beam Line in Lanzhou was a projectile fragment separator located the HIRFL. process of production and separation radioactive ion beams can induce strong complex radiation field. neutron dose equivalent rates were measured four positions with 70 MeV/u 40Ar18+ beam. results compared that simulated by FLUKA code. New shielding walls installed to reduce background for spectroscopy measurement experimental terminal. In addition, induced radioactivity accelerator...
The SuperKEKB e+ e− collider uses highly focused ultra-low emittance bunches colliding every 4 ns to reach a very high luminosity of 8 × 1035cm−2s−1. It is essential have an orbit feedback system at the Interaction Point (IP) maintain optimum overlap between beams in presence ground motion disturbances. For horizontal motion, monitoring system, based on measuring rate Bhabha process vanishing scattering angle, developed as input signal system. relative precision needed for this monitor...
We report on the early SuperKEKB Phase 2 operations of fast luminosity monitor (LumiBelle2 project). Fast monitoring is required by dithering feedback system, which used to stabilize beam in presence horizontal vibrations. In this report, we focus related electron side LumiBelle2. Diamond sensors are located 30 meters downstream IP, just above, beside, and below pipe. During 2, measure background, arising from beam-gas scattering. present hardware design, detection algorithm, analysis...
The second radiation field outside the vacuum tube caused by proton beam loss in high intensity heavy-ion accelerator facility (HIAF) with Monte Carlo method was calculated. energy of is within 50 MeV to 12 GeV. basic problems such as particle yield, spectrum and angular distribution were also discussed. These results are beneficial selecting detector type its location determining dynamic range for detector, well building monitor system. Furthermore, they meaningful some way protection...
The secondary neutron fields at the deep tumor therapy terminal HIRFL (Heavy Ion Research Facility in Lanzhou) were investigated.The distributions of ambient dose equivalent measured with a FHT762 Wendi-II meter as 12 C ions energies 165, 207, 270, and 350 MeV/u bombarded on thick tissue-like targets.The thickness targets used experiments is larger than range carbon ions.The spectra simulated by using FLUKA code, results agree well experimental data.The experiment showed that produced...
The neutron dose distributions on observation distances and angles were measured using a Wendi-II dose-meter at the deep tumor therapy terminal HIRFL (Heavy Ion Research Facility in Lanzhou) as 12C ions with energies from 165 to 350 MeV/u bombarding thick solid water targets different thickness according ion energies. experimental results compared those calculated by FLUKA code. It is found that data was good agreement results. energy spectra also studied are valuable for shielding design of...
Carbon ion is the mostly common used particle in heavy radiotherapy.In this paper, carbon dose tumor treatment for human eye was simulated with FLUKA code, 80 MeV/u beam irradiated into from two directions, The first lateral-forward direction which a typical therapeutic condition, maximum deposited volume.The second one that eyes forward may cause certain medical accident.The calculated results are compared other reports.The agreement indicates method can be plan radiotherapy.
Microdosimetric single event spectra is a significant parameter in radiotherapy, which can be used to evaluate the biological effect of radiation fields. This paper simulated microscopic patterns energy depositions for mixed fields are created by carbon ions with general purpose Monte Carlo code FLUKA. . Experimental measured lineal produced about 300MeV/u were chosen from literature compared results simulation one measurement set-up. In addition, dose-weighted spectra, frequency averaged...
SuperKEKB is an electron-positron collider, which aims to achieve a peak luminosity of 8×10³⁵ cm⁻² s^{−1} using what known as the nano-beam scheme. This paper reports on commissioning and performance dither feedback. The system, based one previously used at SLAC for PEP-II, employed collision orbit feedback in horizontal plane. Twelve air-core Helmholtz coils drive positron beam sinusoidally frequency near 80 Hz, forming closed bump interaction point. A lock-in amplifier detects amplitude...