| Paper | Title | Page |
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| THPO053 | Status of the China Material Irradiation Facility RFQ | 811 |
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Funding: Supported by the National Magnetic Confinement Fusion Science Program of China (Grant No.2014GB104001) and the National Natural Science Foundation of China (Grant No.91426303). The pulsed high power test and beam test of the China Material Irradiation Facility RFQ have been implemented. Before this, the radio frequency measurements and tuning are performed. In this paper, the processes and results of the radio frequency measurements, tuning, pulsed high power test and beam test will be presented. The results of tests are in good agreement with the design. |
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| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-THPO053 | |
| About • | paper received ※ 12 September 2018 paper accepted ※ 21 September 2018 issue date ※ 18 January 2019 | |
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| THPO068 | AN Effect of Field Emission on Low Beta Superconducting Cavities | 849 |
| SPWR011 | use link to see paper's listing under its alternate paper code | |
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| Superconducting RF (SRF) technology is widely ap-plied in particle accelerators to shorten the accelerator length and lower the construction price due to its high acceleration gradients with low rf losses. Field emission is the chief limitation associated with the surface electric field which will finally determine the cavity performance during the operation. The pickup-drop signal caused by field emission seriously affect the stable operation of the superconducting linac in the Chinese initiative Accelera-tor-Driven Sub-critical System (CiADS) demon facility. Simulations of the field emission effect and experimental measurements of the pickup-drop signal have been per-formed on the half wavelength resonator (HWR) cavity. And a modified design of the pickup antenna will be discussed to solve the pickup-drop problem. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-THPO068 | |
| About • | paper received ※ 12 September 2018 paper accepted ※ 09 October 2018 issue date ※ 18 January 2019 | |
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| THPO090 | The Analysis of Module Failure in High Solid-state Amplifier for High Current RFQ | 886 |
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| New accelerator RF system was upgraded to the solid-state amplifier in ADS project due to its stable, sustainable and reliable. Until now, newest 80kW SSA was adopted in IMP, operating in 162.5MHz, and over 120 power modules were combined through several synthesizers for 80kW output. but since too many modules were optimized for amplitude and phase in the same time, one or some failure of circulator will lead to injure of whole RF system, when wavelength meets a specific condition, injure would turn out severe accident and heavy loss. In this paper, analyzing and simulating the multi-level synthetic matrix was the important method for ADS accident happened in June 20. 2017, the failure simulated results for RF amplify links under the specific circumstances also was presented simultaneously. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-THPO090 | |
| About • | paper received ※ 17 September 2018 paper accepted ※ 31 October 2018 issue date ※ 18 January 2019 | |
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