[en] The followings are the major contents and scope of the research : development of kinetics power calculation module, formulation of space-dependent neutron transient analysis - implementation of 3-D and 2-G unified nodal method, verification of the kinetics module by benchmark problem - 3-D PHWR kinetics benchmark problem suggested by AECL, reactor trip simulation by shutdown system 1 in Wolsong unit 2. Development of a dynamic linked library code, SCAN_DLL, for the coupled calculation with RELAP-CANDU : modeling of shutdown system 1, development of automatic shutdown module - automatic trip module based on rate log power control logic, automatic insertion of shutdown system 1. Development of a link code for coupled calculation - development of SCAN_DLL(windows version), verification of coupled code by - 40% reactor inlet header break LOCA power pulse, 100% reactor outlet header break LOCA power pulse, 50% pump suction break LOCA power pulse

[en] This paper analyzed performance of the ENDF/B-V and ENDF/B-VI libraries based on WIMS-AECL/(MULTICELL)/RESP code system and the phase-B physics tests at Wolsong unit 4. The post-simulation was calculated for approaching to the criticality, critical boron concentration, boron worth, the worth of AVZL(Average Zone Level), the worth of reactivity control rods, reactivity variation according to heat transport/moderator system temperature, and flux scan. The simulated results with ENDF/B-VI were more consistent than those with ENDF/B-V-in the calculations with ENDF/B-VI, the worth of AVZL was about 1.5%, the worths of reactivity control rods were about 1.3∼3.6%, the reactivity variation of heat and moderator transport system were 4∼15% and 35%, respectively. In the conclusion, WIMS-AECL/RFSP code system with ENDF/B-VI library was more valid than that of ENDF/B-V library

[en] A compact microwave proton source for the high power proton linear accelerator was proposed and has been developed. A hydrogen microwave plasma in the proton source was ignited using a standard double ridged waveguide and a solenoid at a very low microwave power of 50 W. The magnetic field induced by the solenoid assists not only plasma ignition but its sustainment. The wave absorption efficiency into the plasma and the beam extraction condition depend on this magnetic field. A relatively better region of the wave absorption efficiency exists with fields higher and lower than the electron cyclotron resonance(ECR) field and a good matching can be obtained for an axial magnetic field higher than 1.6 kG without any ECR in the plasma.

[en] The RAON is the name of the heavy ion accelerator facility under construction in Korea that includes the In-flight Fragment (IF) and Isotope Separation On-Line (ISOL) facilities to support cutting-edge research in various science fields. The superconducting linac is the driver for the IF facility that can accelerate beams from proton to uranium with 200 MeV/u, 400 kW (for uranium beam). A 70-MeV, 1-mA H^- cyclotron is the driver for the ISOL facility and is followed by a post-accelerator consisting of s superconducting linac that can accelerate rare-isotope (RI) beams and deliver them to experimental halls. These facilities provide high-intensity stable ion and rare isotope (RI) beams for domestic and international users. In this paper, design and prototyping efforts for the RAON accelerator systems are presented.

[en] Gas ion implanter using Duopigatron ion sources has been used to improve surface properties of the material at PEFP(Proton Engineering Frontier Project). Gas ion implanter is limited to ion species such as feeding gases. Bernas ion source with heating elements is adopted to use heavy ions like metals. This paper is presented about feasibility of the Cu+ ions extraction from the ion source

[en] The control system for the PEFP DTL also started its operation shortly. Although some applications in the control system had limited to vacuum instruments, basic operation of the equipment could be performed using PEFP control system

[en] KAERI (Korea Atomic Energy Research Institute) has been performing the project named PEFP (proton engineering frontier project). PEFP has been performing the project of a high power proton accelerator. Control system for 20 MeV proton accelerating structure is under development. EPICS (Experimental Physics and Industrial Control System) is adopted for control systems which have OPI(Operator Interface) and IOC(Input output controller). In this paper, we present design and construction of HMI integration for the control system we have been performed

[en] Development of a front end system for a high energy proton accelerator is in progress at Korea Atomic Energy Research Institute (KAERI) for basic science and industrial applications. The proper vacuum components has been installed and operated successfully between ion source and RFQ, DTL. The reliable operation of the accelerator has been completed at vacuum system in the high and ultra high vacuum range under operating conditions. Proper control system for the vacuum instruments, based on PC operated by Windows, has been designed and constructed by control group at PAL. As PC operated by windows with inherent instability does not proper, Windows OS had been replaced by Linux redhat9.0, and developed VME system for Dual Pump and NEG pump control

[en] The construction of PEFP project whose final objective is to build 100 Mev proton accelerator started in 2002 and expected to finish in 2012. In 2005, we have performed 20mA proton beam of 20Mev. For developing the control systems of the 20Mev accelerator as well as 100 Mev accelerator, we chose EPICS(Experimental Physics and Industrial Control System) as the most suitable tool. We have studied EPICS applications for various situation and as the application we developed vacuum control system using EPICS base3.14.4 as the core software and EPICS extensions (e.g., EDM(Extensible Display Manager), MEDM(Motif Editor and Display Manager) etc.) as the user interface. There are a number of projects using EPICS for a broad spectrum of applications. EPICS began as a collaboration between Argonne National Laboratory and Los Alamos National Laboratory in 1991, building on work that was initially done at the ground test Accelerator. It is now running on accelerators that have as many as 180 distributed front-end controllers and control rooms with 20 consoles and a gateway to make system parameters available to offices, web site, and other remote control stations. It is also used at single controller and one workstation systems. We use the EPICS tool kit as a foundation of the control system. We developed a vacuum monitor, RFQ, DTL Turbo pump control system for use Ethernet Multi Serial Deice Severs on PEFP control system. The control system now shows stable and reliable characteristics enough to meet our control requirement. However, the control system is continuously being upgraded to accommodate additional control requirements such as vacuum device control

[en] Ion source can be used a various injector as linac, cyclotron, implanter, etc. In the case of the proton linac of PEFP(Proton Engineering Frontier Project), this ion source has some requirements such as an injection beam energy of 50keV, a beam current of above 30mA, higher proton fraction of above 80%, and a low emittance of 0.2 pi mm mrad. Duoplasmatron ion source for PEFP was developed and used to supply a 20MeV proton linac with RFQ and DTL. Another type of ion source for a long time operation was considered such as a microwave ion source and the extraction system the ion source has been studied