Abstracts Brochure - CERN

TUPCH — Poster Session 27-Jun-06 16:00 - 18:00
Characteristics of the PEFP 3 MeV RFQ
A four-vane type 3 MeV, 350 MHz RFQ (Radiofrequency
Quadrupole) has been devel- H.-J. Kwon, Y.-S. Cho, J.-H. Jang, H. S. Kim, K.T. Seol (KAERI)
oped as a front end part of PEFP (Proton Engineering
Frontier Project) 100 MeV accelerator. After the completion of field tuning and high power conditioning
at reduced duty, the initial operation of the RFQ with beam was carried out. During the initial test period, several
parameters related with the RF and beam were measured to characterize the performance of the RFQ. Based on these
measurements, several suggestions for further system improvement were proposed. In this paper, the initial test
results are discussed and the suggestions for the system improvement are summarized.
Phase Measurement and Compensation System in PLS 2.5GeV Linac for PAL-XFEL
In PAL, We are preparing the 3.7 GeV
PALXFEL project by upgrading the present
2.5GeV Linac. In present PLS Linac, the
specifications of the beam energy spread
W.H. Hwang, J. Choi, Y.J. Han, J.Y. Huang, H.-G. Kim, S.-C. Kim,
I.S. Ko, W.W. Lee (PAL)
and rf phase are 0.6%(peak) and 3.5 degrees(peak) respectively. And the output power of klystron is 80 MW
at the pulse width of 4 µs and the repetition rate of 10 Hz. In XFEL, the specifications of the beam energy spread
and rf phase are 0.03%(rms) and 0.01 degrees(rms) respectively. We developed an analogue and a digital phase
measurement and rf phase compensation system for stable beam quality. This paper describes the microwave
system for the PALXFEL and the rf phase measurement and phase compensation system.
Design of the RF System for 30MeV Cyclotron (KIRAMS-30)
LAD (Lab. of Accelerator Development)
in KIRAMS (Korea Institute of Radiological
& Medical Sciences) developed 13MeV
medical cyclotron, named by KIRAMS-13,
for PET (Positron Emission Tomography) in
I.S. Jung, D.H. An, J.-S. Chai, H.B. Hong, S.S. Hong, M.G. Hur, H.S.
Jang, J. Kang, J.H. Kim, Y.-S. Kim, M.Y. Lee, T.K. Yang (KIRAMS)
K.H. Kwon, L.L. Oo (New Affiliation Request Pending)
2001. Now, KIRAMS-13 is widespread in Korea through the national project, "Development of Cyclotron and FDG
Synthesis module." But, there is just one cyclotron for SPECT(Single Photon Emission Computed Tomography) in
Korea, which is made by IBA, Belgium. If some problems are happened, we should shut off the cyclotron until IBA
engineer fixes them. So, we decide to develop a 30MeV cyclotron, named KIRAMS-30, which has high-performance
compared with existing commercial cyclotrons and will install this machine to radioactive isotopes production and
researches in Advanced Radiation Technology Institute. In this paper, we design RF system, such as cavity, power
coupler, and so on. At design of RF components, we consider mechanical stability, RF heating and cooling, arcing
and multipacting, low maintenance. We simulate KIRAMS-30 with MWS (MicroWave Studio) and present simulation
results.
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