09.12.2012 Views

Abstracts Brochure - CERN

Abstracts Brochure - CERN

Abstracts Brochure - CERN

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

WEPCH — Poster Session 28-Jun-06 16:00 - 18:00<br />

The Performance of Double-grid O-18 Water Target for FDG Production<br />

The main stream of our study about the target<br />

is increasing the lifetime of the target windows.<br />

Mainly we conduct our study to increase<br />

the cooling performance and secondly<br />

H.B. Hong, J.-S. Chai, M.G. Hur, H.S. Jang, J. Kang (KIRAMS) C.H.<br />

Cho, K.M. Kim (Yonsei University)<br />

about the structural design of the targets and target window foils. We already develop and publish the results of our<br />

research about O-18 double-grid water target, which had installed on our 13 MeV cyclotron KIRAMS-13. The beam<br />

size of the accelerated proton was 9*18 mm 2 (9 by 18 square millimeter). The double-grid target shows relatively low<br />

pressure during irradiation and good yield of F-18. The average yield of F-18 after irradiation was more than 1 Ci at<br />

12.5 MeV , 30 µA. Additionally, we are conducting new research for new techniques to increase the performance of<br />

low energy double-grid target and a new state-of-the-art pleated double foil target.<br />

Design of Tandem Target for F-18 and C-11 Production<br />

F-18 and C-11 are most commonly produced<br />

positron emitting nuclide at hospital which<br />

has own cyclotron and useful isotope for<br />

development of radio-pharmaceuticals for<br />

imaging tumors with PET. Generally, it is<br />

necessary to build up two separate target sys-<br />

M.G. Hur, D.H. An, J.-S. Chai, H.B. Hong, S.S. Hong, W.T. Hwang,<br />

H.S. Jang, I.S. Jung, J. Kang, J.H. Kim, Y.-S. Kim, M.Y. Lee, T.K. Yang<br />

(KIRAMS) S.W. Kim, S.D. Yang (Advanced Radiation Technology<br />

Institute, Korea Atomic Energy Research Institute)<br />

tem to produce F-18 and C-11 and has to bombard either using different beam line or beam time as a general rule. In<br />

this research, the tandem target for simultaneous production of C-11 and F-18 has been designed. The withdrawal<br />

system has been divided into two parts to collect [C-11] methane gas and [F-18]fluoride ion simultaneously after<br />

bombarding. The grid supported mid foil for separate C-12 gas and O-18 water. 30MeV for incident energy for whole<br />

target, 13.9MeV for C-11 and 7.6MeV for F-18 were used. After irradiation, 300 ± 50 mCi of C-11 and 600 ± 50 mCi of<br />

F-18 were simultaneously produced with proton beam current of 20 uA for one hour.<br />

Design of 12 MEV RTM for Multiple Applications<br />

Design of a compact 12 MeV race-track microtron<br />

(RTM) is described. The results<br />

of operating wavelength choice, accelerating<br />

structure and end magnets optimization and<br />

A.V. Poseryaev, V.I. Shvedunov (MSU) M.F. Ballester, Yu.A.<br />

Kubyshin (UPC)<br />

beam dynamics simulation are represented. Use of a C-band linac and rare earth permanent magnet end magnets<br />

permit to design RTM, which is more compact and more effective as compared with the same energy circular microtron<br />

or linac. Electron beam with energy 4-12 MeV in 2 MeV step can be extracted from RTM. The estimated pulsed<br />

RF power required for feeding the linac is about 800 kW, total mass of accelerator is less than 40 kg and its dimensions<br />

are about 500x200x110 mm3.<br />

323<br />

WEPCH173<br />

WEPCH174<br />

WEPCH175

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!