RF Upgrade at DELTA. P. Hartmann DELTA, TU Dortmund

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Magdalene Montgomery
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RF Upgrade at DELTA P. Hartmann DELTA, TU Dortmund DELTA parameters: Personnel: Beam energy: 550 MeV 1.5 GeV Beam current: 130mA @ 1.

1 RF Upgrade at DELTA P. Hartmann DELTA, TU Dortmund DELTA parameters: Personnel: Beam energy: 550 MeV 1.5 GeV Beam current: 1.5GeV Beam lifetime: 130 ma Availability: 95 % Operational: 3000 h / year 2 Professors 4 Accelerator physicists 2 Beamline scientists 1 Administration 9 Engineers / Technicians X Students

2 DELTA 500 MHz RF Systems Analog 499,82 MHz Klystron amplifier YK-1265 (42 kw) DORIS type single-cell cavity DESY HOM-Antenna damper Analog 499,82 MHz Klystron amplifier YK-1265 (15 kw) DESY type 3-cell cavity 2

3 RF upgrade for Booster and SR: 2 power amplifiers (75kW + 20kW): Call for tender in spring bidders, net price range from ~500 k to ~1,3 M for 2 amps + spare parts Order to Cryoelectra GmbH Thanks to W. Anders from BESSY for support. 1 EU-cavity (HOM damped): Call for tender in summer bidder Order to Research Instruments GmbH Thanks to V. Dürr from BESSY for support. Infrastructural and other upgrades: kw additional power from university transformers kw additional water cooling power - Cavity support, waveguides, tapers,... Thanks to the DELTA Team, the university administration and technical institutions for support.

4 Booster RF Upgrade Power supply Solid state Klystron amplifier LLRF

5 Beam Booster SSA Installation Shutdown Week 08 Week 09 SSA ready to be switched on March 1-3: Commissioning, quality tests, measurements, EPICS Beam Week 10 Feb. 20: Tube cabinet and transformers pulled out of booster area Feb. 21: SSA delivery Feb : Assembly of parts, electrical power, cooling water March 6: power level adjustment for booster ramp with beam (2 h) March 6 today: >2200 h of operation without any issues Special thanks go to the Cryoelectra team for excellent work & customer relations 5

Irradiation measurements Electr. Field (499 501 MHz @ 12 kw): Max. 0,16 V/m (white air filters) 0,14 V/m (EMV air filters) Max.

6 Irradiation measurements Electr. Field ( kw): Max. 0,16 V/m (white air filters) 0,14 V/m (EMV air filters) Max. field close to circulator: 0,6 V/m Exp. limit: 30 V/m (public) 68 V/m (working areas) Radioactivity (48 kev 1,3 MeV): Below detection limit 6

7 Booster Efficiency with tube amplifier HVPS power ~ 70 kw, generates 22 kv / 2.85 A independent of RF output RF ramp needs 0 15 kw, Standby power ~ 7 kw η = 10% average power ~ h/year = kwh / year Electricity cost ~ /year (assuming 0,18 /kwh) Booster Efficiency with transistor amplifier 7

8 Efficiency figures of transistor amplifiers: Transistor Efficiency: Ampleon 500 MHz¹: Eff=70%, P=1300W, Rth=0.14K/W, TTF=500a ² Ampleon BLF MHz¹: Eff=50%, P=400W, Rth=0.24K/W, TTF=300a ² Sumimoto SGNH130M1H (GaN)@500 MHz¹: Eff=79%, P=170W, Rth=1.1K/W, TTF=? ¹ All data from transistor data sheets ² ID=13A, TJ=130 C Module Efficiency: Measurement procedure not clearly defined, company numbers vary between 55% and 58 %. Verification on-site needs module test setup with cooling. AC-to-RF Efficiency: Easy to verify on-site: η AC t o RF = RF output power Line input power+ RF input power

9 AC-to-RF efficiency measurement Fluke 435 power line analyzer Recently calibrated dir. coupler

11 In-fact booster AC-to-RF Efficiency with tube amplifier HVPS power ~ 70 kw, generates 22 kv / 2,85 A independent of RF output RF ramp needs 0 15 kw, Standby power ~ 7 kw η = 10% average line power ~ h/year = kwh / year Electricity cost ~ /year (assuming 0,18 /kwh) In-fact booster AC-to-RF Efficiency with transistor amplifier η = 30%, line power dependent on RF output average line power ~ h/year = kwh / year Electricity cost ~ /year (assuming 0,18 /kwh) Return of investment after 5 years. 11

Control system (EPICS) Integration Amplifiers controlled by Siemens S7 PLC may easily be integrated into the EPICS control system using D. Zimoch's s7plc driver. (http://epics.web.psi.

12 Control system (EPICS) Integration Amplifiers controlled by Siemens S7 PLC may easily be integrated into the EPICS control system using D. Zimoch's s7plc driver. ( Provided by PLC programmer: Index PV1, 8 bit, offset 0 PV2, 32 bit, offset 1 PV3, 16 bit, offset 5... EPICS IOC s7plc Data block PLC TCP/IP Data block 12

13 Maintainability of local console (20 years) Problem: Local console is implemented in LabView under Windows XP. Solution: Console software runs in Virtual Machine Amplifier control Local console (PC) Linux / kvm Windows XP / LabView PLC (Sourcecode avail.) TCP/IP Ethernet card 2 Virtual Machine (VM) VM archived Ethernet card 1 EPICS control system

14 Storage ring SSA Delivered on April 10 Relaxed schedule -Software updates -Reprogramming of modules Ready for operation

Irradiation measurements Electr. Field (499 501 MHz @ 75 kw): Max. 2 V/m (white air filters) Max.

16 Irradiation measurements Electr. Field ( kw): Max. 2 V/m (white air filters) Max. field close to water load (arrow): 8 V/m Exp. limit: 30 V/m (public) 68 V/m (working areas) Radioactivity (48 kev 1,3 MeV): Below detection limit

17 EU-type RF Cavity Delivery expected in November 2017 (as ordered) - Small issues with welding (solved) - Issues with soldering of HOM absorber tiles (hopefully solved) Thanks to V. Dürr (BESSY) and his team Pictures courtesy Research Instruments GmbH

18 Acknowledgments DELTA RF-Group: W. Brembt, V. Kniss, P. Hartmann, T. Weis DELTA team TU Dortmund administration W. Anders, V. Dürr and team from BESSY Cryoelectra team Research Instruments team

Status of berlinpro and BESSY II Installation of SSA. Helmholtz-Zentrum Berlin for materials and energy (HZB)

Status of berlinpro and BESSY II Installation of SSA Wolfgang Anders, Helmholtz-Zentrum Berlin for materials and energy (HZB) 19th ESLS-RF Meeting 30.9.-1.10.2015 MaxLab outline BERLinPro Status building