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LS2 Report: An upgraded Inner Tracking System joins the ALICE detector（图）
ALICE 检测器 LS2 像素探测器
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2023/5/30
After two nerve-wracking months dedicated to the installation of the ALICE detector’s new Inner Tracking System (ITS), Corrado Gargiulo’s mechanical engineering team, in charge of the installation, ca...
Tevatron Beam Halo Collimation System: Design, Operational Experience and New Methods
Accelerator Subsystems and Technologies bent crystal collimation hollow electron beam collimation Accelerator Physics
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2012/5/17
Collimation of proton and antiproton beams in the Tevatron collider is required to protect CDF and D0 detectors and minimize their background rates, to keep irradiation of superconducting magnets unde...
System size dependence of intermediate mass fragments in heavy-ion collisions
heavy-ion collisions intermediate mass fragments
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2011/7/20
We simulate the central reactions of $^{20}$Ne+$^{20}$Ne, $^{40}$Ar+$^{45}$Sc, $^{58}$Ni+$^{58}$Ni, $^{86}$Kr+$^{93}$Nb, $^{129}$Xe+$^{118}$Sn, $^{86}$Kr+$^{197}$Au and $^{197}$Au+$^{197}$Au at differ...
Energy and system-size dependence of the Chiral Magnetic Effect
Energy system-size dependence the Chiral Magnetic Effect
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2010/12/29
The energy dependence of the local ${\cal P}$ and ${\cal CP}$ violation in Au+Au and Cu+Cu collisions in a large energy range is estimated within a simple phenomenological model. It is expected that a...
Beam energy measurement system at BEPCII
energy measurement laser electron HPGe detector
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2010/5/7
The beam energy measurement system at BEPCII is composed of there parts: laser source and
optics system, laser-electron interaction system and High Purity Germanium (HPGe) detector system. The
speci...
A non-IQ sampling controller in low level RF system
Shanghai synchrotron radiation facility LLRF non-IQ field programmable gate array
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2009/8/17
This paper describes a non-IQ controller for digital Low Level RF (LLRF) feedback control. Based on this non-IQ sampling method, arbitrary frequency relationship between ADC/DAC sampling clocks and IF...
Injection system design for a hadron therapy synchrotron
injection mode stripping injection synchrotron lattice
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2009/8/17
A synchrotron is designed for tumour therapy with C6+ ions or proton. Its injector is a cyclotron, which delivers C5+ or H2+ ions to the synchrotron. After comparing the methods of the single-turn inj...
Digital prototype of LLRF system for SSRF
LLRF controller field programming gate array feedback algorithm clock distribution local oscillator
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2009/8/14
This paper describes a field programming gate array (FPGA) based low level radio frequency (LLRF) prototype for the SSRF storage ring RF system. This prototype includes the local oscillator (LO), anal...
Induced Fractional Zero-Point Angular Momentum for Charged Particles of the Bohm-Aharonov System by means of a "Spectator" Magnetic Field
Fractional Zero-Point Angular Momentum Particles of the Bohm-Aharonov System Spectator
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2010/4/8
An induced fractional zero-point angular momentum of charged particles by the Bohm-Aharonov (B-A) vector potential is realized via a modified combined trap. It explores a "spectator" mechanism in this...
Some Limit Theorems for a Particle System of Single Point Catalytic Branching Random Walks
Renewal equation branching particle system scaling limit
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2007/12/10
We study the scaling limit for a catalytic branching particle system whose particles perform random walks on ${\Bbb Z}$ and can branch at 0 only. Varying the initial (finite) number of particles, we g...
Developement of Crisp Package for Spallation Reaction Studies and its Utilization in ADS (Accelerator Driven System)
Crisp Package Spallation Reaction Studies Accelerator Driven System
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2010/10/25
The progress of nuclear physics had allowed a better understanding of nuclear structure and reaction mechanisms, but also enables important applications of nuclear energy in our modern way of life. We...
The Utilization of a Cyclotron CV-28 in Basic and Applied Nuclear Research and in an Experimental Accelerator Driven System Zero Power Lead Sub Critical Facility
a Cyclotron CV-28 Nuclear Research an Experimental Accelerator Driven System Zero Power Lead Sub Critical Facility
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2010/10/25
This paper describes the IPEN Cyclotron CV-28, and its utilization in basic and applied physics and to drive a zero power lead Accelerator Driven System (ADS), as a milestone in a road map for a progr...