PLS-II Control System Mun Gyung Kim Pohang Accelerator Laboratory October 27, 2014 WAO 2014, Mainz, Germany PLS-II has been upgraded from PLS (Pohang Light Source) from 2011. There are several important changes. At first electron beam energy changed from 2.5 GeV to 3.0 GeV. Operation mode was changed from decay to top-up. RF systems in the storage ring were changed from 5 normal conducting cavities to 3 super conducting cavities. Two times of insertion devices than PLS were installed. These mean we need a new control system to control them with more high accuracy and safety. Furthermore we wish operator and user friendly systems, specially using mobile phones. During last three years we have developed the control systems step by step in these aspects. Major Changes from PLS to PLS-II • Beam Current from 190 mA to 400 mA (Now 320 mA service) • Energy : 2.5 GeV to 3.0 GeV • Operation Mode: from Decay to Top-up • Injection : from every 8 hr. to every 190 sec. • No. of In-vacuum insertion device : 1 (min. 8.0 mm operation) to 12 (min. 6 mm operation) • BPM: 108 Bergoz BPM (No TBT, No Post Mortem Signal) > 96 Libera Brilliances (TBT, PM Data possible for beam dump) • Orbit feedback : SOFB > SOFB, FOFB • Linac RF : 12 klystron-modulator to 16 klystron-modulator • SR RF : 5 normal conducting cavities to 3 super conducting Cavities Major Changes from PLS to PLS-II • B/L PBPM : installed in 3 BLs but not used actually (PLS) every BL installed using orbit reference(PLS-II) • PBPM Feedback : None in PLS, 2 B/L feedback in PLS-II • Linac Diagnostics: Only Analogue Signals with CCTV monitoring (12 BCM, 9 BPRM)in PLS, Bergoz BPM(10) + Libera Single EassE (16) + OTR in PLS-II • Timing delay control: DG535 in Local in PLS EVR + EVG digital remoter control in PLS-II • Operation S/W : VEM, C, MEDM mainly, in special case(SOFB) matl ab + epics in PLS, VME, C in special case(SR BPM), but mainly matlab, EDM, MEDM, CSS in PLS-II Control Room Concept • Focused Main Parameters Monitoring • Separate Monitoring & Control Place • Include Control Program Development Space - effective in commissioning (we had only 6 months to install of PLS-II) • Upgrade Meeting Place • Healthy & Safety Main Monitoring Panel Composed by 8 PLD Panels with 40”size Main Monitoring Panel - Left Main Monitoring Panel - Light SR Beam Parameters & ID Gap Monitoring CCTV – SR tunnel, Shed, Kicker PS Fire Monitoring! During commissioning, the kicker PS was fired! After that we installed CCTV camera in kicker PS. Linac Control & Monitoring Linac Status Monitoring Top Up Status Kicker BPM MIS Buncher Energy Feedback Linac Status Monitoring LINAC Top Menu E-GUN / BPRM / SLIT BTL MPS Control BTL MPS Control Panel LINAC MPS / Pre-injector Pre-injector MPS Control Panel Linac MPS Control Panel LINAC RF Power & Phase Control Linac Energy Feedback BTOTR Measurement Injected Beam Energy & Energy Spread during Injection from Peak position and Beam Size LINAC - BTL BPM / BCM LINAC / BTL BPM (LINAC / BTL Orbit) Monitoring FCT Charge BCM LINAC Cooling Status Problems about Linac Control & Monitoring Too many control & Monitoring panels Machine turn time is necessary to be short Improve machine turn on reliabilities. Include several automation control programs 1 Click Linac Automation Control In development, beta test in next month Storage Ring Top-up Parameter Monitoring MPS Control Kicker Control RF Control & reset Top-up Control BL PBPM status monitoring Slow Orbit Feedback ID Gap Control SR Vacuum & Temperature Scraper Top Up Status Monitoring SR MPS Control Panel SR RF Control 1. RF Ready : Interlock related (MIS, PSI) 2. RF Gap Voltage Control 3. Gap Parameter Monitor : Voltage, Phase, Detune Phase 4. LLRF (Low Level RF) Control & Reset 5. KSU (Klystron Power Supply Unit) : Monitor & Reset 6. RF Voltage, Power, Vacuum Graph 3. Kicker Control Panel Pulse Form Wave During Injection Top Up Control SOFB (Slow Orbit Feedback) FA & TBT BPM Monitoring SR Orbit Monitoring Tune Monitoring MIS (Machine Interlock System) SR Vacuum & Temperature OPI - Monitoring Stored Beam Scraper Slowdown beam dump to reduce RF cavities shock pulse power by quick beam dump PBPM Monitoring ID Gap Control OPI Personal Safety Interlock System (PSI) Personal Safety Control and Monitoring for Radiation (Radiation Shielding, Interlock, Procedure for Entering) Control Situation No Access Mode Controlled Access Mode Restricted Access Mode Free Access Trip Case of Trip Top-up Mode / Decay Mode Operation Search for Operation PSI (Personal Safety Interlock) Radiation SR PSI Status Panel Mode C’TRL Panel SR Radiation Monitoring Entrance Log CCTV Monitor - Door to SR Linac PSI Status PSI - Radiation Monitoring Experimental Hall Wall Beamline Hutch Linac Tunnel & Gallery Around Site Bldg Fire Alarm Monitoring Broadcasting Voice Announcement for Users about Beam Operation Status Mobile Phone Service for Users Operation Schedule l Public Visitor Service Beam Time Table Guest Room Mobile Phone Service for Users Web IOC Data Service - Plan to Big Data Control Room Composition PLS Control Room Emergency lamp Information for users SR Control & Monitor E-beam Signal Linac control Meeting Table Sprinkler (Water!!) Utility Monitor Fluorescent lamp PSI Air Cooler Server Room PLS-II Control Room Composed by 5 areas: Monitoring, Control, Meeting, PSI, Operator Monitoring Meeting Place Control PSI Operator Tables PLS-II Control Room PSI Beam Physics Gr, Office PLS-II Control Room Meeting Place PSI Windows for operators Fire Extinguisher Controller PLS-II Control Room Well-being Concepts : Healthy & Safety Air Conditioner Fire Extinguisher -Temperature, With Halon Gas Humidity, Refreshment LED lamp Control Room View from Outside For Public Relation! View of public visitors.