| Paper |
Title |
Other Keywords |
Page |
| THPAB134 |
Latest Development of the ALBA DLLRF |
cavity, LLRF, beam-loading, interlocks |
4034 |
| |
- A. Salom, B. Bravo, M. Broseta, E. Morales, J.R. Ocampo, F. Pérez, P. Solans
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
|
|
| |
The Digital LLRF of ALBA has been implemented using commercial cPCI boards with Virtex-4 FPGA, fast ADCs and fast DACs. The firmware of the FPGA is based on IQ demodulation technique and the main feed-back loops adjust the phase and amplitude of the cavity voltage and also the resonance frequency of the cavity. This paper summarizes the latest LLRF developments done to improve performance of the RF systems and beam stability, including feed-forward loops based on phase modulation to compensate disturbances due to RF trip, beam loading compensation and Power Unbalance Compensation Loop for RF amplifiers Combination.
|
|
| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2017-THPAB134
|
|
| Export • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |
| THPIK072 |
Development of High Power RF Amplifier System for the KBSI RFQ |
rfq, cavity, LLRF, operation |
4257 |
| |
- J. Bahng
Kyungpook National University, Daegu, Republic of Korea
- M.-H. Chun
PAL, Pohang, Kyungbuk, Republic of Korea
- J.G. Hong, B.S. Lee, J.W. Ok
Korea Basic Science Institute, Busan, Republic of Korea
- D.S. Kim
DAWONSYS, Ansan-si, Republic of Korea
- E.-S. Kim
Korea University Sejong Campus, Sejong, Republic of Korea
|
|
| |
KBSI (Korean Basic Science Institute) has been developed a compact accelerator system for generation of fast neutron by 2.7 MeV/u of lithium beam. The facility consists of 28 GHz SC-ECR ion source, LEBT, RFQ and DTL. The developed RFQ accelerator provides lithium ion beam from 12 keV/u to 500 keV/u with 98.88 % of high transmission rate at 165 MHz of operation frequency. RF power system for RFQ accelerator has been developed to provide sufficient RF power into RFQ cavity. which consists of LLRF system for control, 5 KW of SSPA as IPA, tetrode tube amplifier as FPA, coaxial transmission line and circulator for protection from reflection power provides 100 kW at operation frequency with CW mode, In this paper, we discuss about development of RF system and performance test in detail.
|
|
| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2017-THPIK072
|
|
| Export • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |
| THPIK102 |
Commissioning of the SLRI Storage Ring Second RF System |
cavity, electron, LLRF, storage-ring |
4328 |
| |
- N. Juntong, S. Boonsuya, S. Cheedket, Ch. Dhammatong, S. Krainara, W. Phacheerak, R.R. Rujanakraikarn, N. Suradet
SLRI, Nakhon Ratchasima, Thailand
|
|
| |
The old RF cavity in the storage ring of SIAM Photon Source (SPS), the 1.2 GeV second generation synchrotron light source in Thailand, has been pushed to its maximum capability to compensate electron energy lost in the storage ring. This energy lost is the effect from two additional insertion devices, which have been installed in SPS storage ring during June to August 2013. The new RF system has been planned since 2012, but with some technical and procurement difficulty the new system was successfully commissioning and running in August 2016. The installation, acceptance testing, conditioning and commissioning results of the new RF cavity, RF high power transmitter, and the low level RF system will be presented
|
|
| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2017-THPIK102
|
|
| Export • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |