| Paper | Title | Other Keywords | Page |
|---|---|---|---|
| TUPC012 | Fabrication and Validation of the Prototype Supporting System for the CLIC Two-beam Modules | alignment, RF-structure, radiation, linac | 1015 |
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| The Compact LInear Collider (CLIC), currently under study at CERN, aims at the development of a Multi-TeV e+ e- collider and relies upon a novel two-beam acceleration concept. In the two-beam acceleration, the Radio Frequency (RF) power is extracted from a low energy but high-intensity particle beam, and it is transferred to a parallel high energy main beam. The two-beam modules are the smallest repetitive units which compose the two linacs. The RF structures are the most precise components and they are mounted and aligned on specially developed supporting system, which provides stability and quick re-positioning. The supporting girders have stringent stiffness and damping requirements, imposed by beam physics requirements. In addition, several constraints, such as allocated space and weight limitation have to be taken into consideration. This paper describes different girder configurations following various fabrication techniques and materials. Extensive qualification measurements have been performed on the first prototype units, and the main results are also presented. | |||
| TUPS089 | HI-13 Tandem Accelerator Radiation Protection System | radiation, controls, monitoring, status | 1749 |
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| In HI-13 Tandem Accelerator laboratory, a new radiation protection system has been built Which composed of 7 protective door control units and 7 emergency alarms , 23 groups of indicators,17 groups of workshop-empty units , L.E and IMAG Faraday cups as well as computer control and display system . Pre-empty process is prerequisite before close the protective doors to ensure nobody be exposed on irradiation environment otherwise the door-open would be disabled. Even thought somebody left, pushing nearby alarm button and emergency door-open button will induce glittery signal and simultaneous door-openning. L.E and IMAG Faraday cups execute immediate beam interruption once accidence occured . The distributed indicators indicate real time status of all the work fields. All above devices and units are interlocked follow some complex but logical protective rules. Computer workstation is built and accordingly, after full information and operation action signals are collected and transferred, the software can complete full-sides status monitoring, provide convenient control and display interfaces as well as pop adequate prompt frames. | |||
| THPS079 | Vacuum-insulation Tandem Accelerator for Boron Neutron Capture Therapy | neutron, target, vacuum, proton | 3615 |
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Novel powerful electrostatic vacuum-insulation tandem accelerator had been proposed* and created at BINP. A 2 MeV 3 mA dc proton beam is obtained. Neutrons are generated by 7Li(p,n)7Be reaction in the near threshold mode**. Epithermal neutron flux is formed for the development of Boron Neutron Capture Therapy (BNCT) of malignant tumors. In this report results on proton beam obtaining, neutron flux generation and in vitro investigation are presented and discussed. This accelerator based neutron source looks like a prototype of compact inexpensive epithermal neutron source for the spread of BNCT. Plans on BNCT realization are declared. Also the facility is used for the development of nuclear resonance absorption technique for nitrogen detection, and for the investigation of neutronless fusion. First, 9.17-MeV gamma rays are generated by 13C(p,gamma)14N reaction at 1.76 MeV protons***. Second, we are ready to measure alfa particles energy spectrum of p+11B reaction.
* Bayanov et al., NIM A 413 (1998) 397-426. ** Kuznetsov et al., Technical Physics Letters 35/8 (2009) 1-6. *** Kuznetsov et al., NIM A 606 (2009) 238-242. |
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