No abstract

Several application programs are included in Proton Engineering Fkontier Project (PEFP), which was approved by the korean government, Ministry of Science and Technology (MOST) in May 2002. For the feasibility studies of these application programs, we built a beam line a t the SNU-AMS Tandem Accelerator. This test facility of proton heam utilization of PEFP consists of two electric dipoles, two AC scanning magnets, the irradiation chamher, beam profile monitoring system, and power supplies. The vacuum pressure is less than 4x10-' torr with 700L/sec compound TMP. The maximum irradiation area of 6MeV proton beam is 5cmx5cm with two scanning magnet and variable AC,power supplies of 2 to 60Hz. Beam optics ahout the beam line of about 4m long was calculated using WINGILE code, and the magnetic field distribution of scanning magnets was evaluated by POISSON code. For the application to the semiconductor power device, the useful range of proton beam energy is from I to 6MeV, and the dose rate is from 1~1 0 '~ to 1~1 0 '~ jcm2 sec. For these experiments, the 2-dimensional detector system was necessary so it is under development. And some apparatus for using the external beam, which was necessary for the application to the biological technology, will be added in near future.The low energy accelerator systems of the Proton Engineering Fronbier project, (PEFP) consist of an ion SouTce, a' low energy beam transport (LEBT), a 350MH2, 3MeV Radiofrequency Quadrupole (RFQ), a medium energy beam transport (MEBT) and a 350MHz, 20MeV drift tube linac (DTL) A beam test of the ion source and LEBT have been finished and a tuning test of the RFQ is being. The design of the first tank of the DTL is almost completed. t .JmhanlQkaeii.re.ki 245