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| WEPCH164 |
High Power RF Tests of the First Module of the TOP Linac SCDTL Structure
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2313 |
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- L. Picardi, C. Cianfarani, G. Messina, G.L. Orlandi, C. Ronsivalle
ENEA C.R. Frascati, Frascati (Roma)
- E. Cisbani, S.F. Frullani
ISS, Rome
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The TOP Linac (Oncological Therapy with Protons), under development by ENEA and ISS, is a sequence of three pulsed (5 microseconds, 300 Hz) linear accelerators: a 7 MeV, 425 MHz RFQ+DTL (AccSys Model PL-7), a 7-65 MeV, 2998 MHz Side Coupled Drift Tube Linac (SCDTL), and a 65-200 MeV, variable energy 2998 MHz Side Coupled Linac (SCL). The first SCDTL module structure, composed by nine DTL tanks coupled by eight side cavities, has been built. Low power RF measurements have shown good field uniformity and stability along the axis. The structure has been tested with a 1 - 4 MW power RF. Results of low and high power tests are reported and discussed.
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| WEPCH165 |
A Nonlinear Transport Line for the Optimization of F18 Production by the TOP Linac Injector
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2316 |
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- C. Ronsivalle, C. Cianfarani, G. Messina, G.L. Orlandi, L. Picardi
ENEA C.R. Frascati, Frascati (Roma)
- E. Cisbani, S.F. Frullani
ISS, Rome
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The injector of the TOP Linac (Oncological Therapy with Protons), under development by ENEA and ISS, consists of a 7 MeV, 425 MHz RFQ+DTL (AccSys Model PL-7). It is actually in operation at ENEA-Frascati Laboratories for the production of the positron-emitting radionuclide F18 for PET analyses by an intense proton beam (8 - 10 mA, 50 - 100 μs, 30 - 100 Hz). At the exit of the injector, the beam is guided through a magnetic channel to a target composed by a thin chamber (0.5 mm thick and 1-inch diameter) containing water enriched with O18. Recently, to the original quadrupole transport channel, a non-linear magnet system using octupoles has been added in order to flatten the proton beam distribution and optimize the radioisotope production. In the paper the details of the octupole design and beam dynamic study and the first measurements results are presented.
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