Control Systems around Penning trap mass spectrometry Mikhail Goncharov CS-Workshop 2013 GSI, Darmstadt STORED AND COOLED IONS DIVISION

Cyclotron frequency: Ring electrode End-cap electrodes z0z0 r0r0 ν+ν+ νzνz ν-ν- Axial frequency: Modified radial frequencies: Quadrupolar E-field Penning Trap Mass Spectrometry Basic trapping principles

STORED AND COOLED IONS DIVISION Penning Trap Mass Spectrometry Frequency measurement techniques Phase Imaging ICR Detection 8 mm 1 mm Image Charge FFT Detection Time-of-Flight ICR Detection

STORED AND COOLED IONS DIVISION Penning Trap Mass Spectrometry Control Systems for ToF-ICR (e.g. CS-SHIPTRAP) Voltage Sources and Switches FPGA-Based PPG and MCS rf-synthesizers Data Analysis Data Acqusition (incl. automation) mm6 (sequences, scans, etc…) Time-of-Flight ICR Detection

STORED AND COOLED IONS DIVISION Penning Trap Mass Spectrometry Control Systems for FT-ICR (e.g. CS-PENTATRAP) Voltage Sources and Switches FPGA-Based PPGs rf-synthesizers Data Acqusition (incl. automation) Image Charge FFT Detection FFT-Analyzers ORTEC MCS …sequencers …scanners …data archivers

STORED AND COOLED IONS DIVISION 1.Main Front Panel (for ‘end-users’) 2.Measurement Data Base – PHELIX? 3.Providing scans of several objects in parallel (rel. to 1.) 4.‘Online’ data analysis tool (fitting routines) 5.FFT Analyzer – record of a time domain signals is still under a question mark The setup still does not operate!  too small experiment no systematics yet the very last step to implement …from CS-Workshop 2012 CS-PENTATRAP ToDo?

STORED AND COOLED IONS DIVISION Penning Trap Mass Spectrometry Phase Imaging Ion Cyclotron Resonance (PI-ICR) position-sensitive detector B Penning trap slides provided by Dr. S. Eliseev

STORED AND COOLED IONS DIVISION Penning Trap Mass Spectrometry Phase Imaging Ion Cyclotron Resonance (PI-ICR) active diameter42 mm channel diameter 25  m position resolution 70  m Delay-Line MCP-based position- sensitive detector © RoentDek GmbH slides provided by Dr. S. Eliseev

STORED AND COOLED IONS DIVISION Penning Trap Mass Spectrometry PI-ICR Control System DAQ is based on RoentDek TDC8HP high-resolution multi-hit Time-to-Digital Converter time resolution< 100 ps with 25 ps LSB group range-209 us to +209 us Throughputup to particles / s double-hit dead-time< 10 ns ChannelPurpose 1X1 2X2 3Y1 4 Y2 5MCP-plate signal (t MCP ) 6Trap ejection trigger (t 0 ) VariableMeaning X1 – X2x-coordinate X1 + X2x-delay-line length Y1 – Y2y-coordinate Y1 + Y2y-delay-line length t MCP – t 0 t Time-of-Flight TDC Data Processing

STORED AND COOLED IONS DIVISION Penning Trap Mass Spectrometry PI-ICR Control System X1 – X2x-coordinate Y1 – Y2y-coordinate t MCP – t 0 t Time-of-Flight X1 + X2x-delay-line length Y1 + Y2y-delay-line length Calibration histograms Cartesian Phase Imaging and ToF for completeness

STORED AND COOLED IONS DIVISION Penning Trap Mass Spectrometry Preliminary Data Analysis PI-ICR Control System & CS-SHIPTRAP Gaussian Fits in Cartesian and polar coordinates FPGA-Based PPG Agilent rf-synthesizers for phase scans etc. mm6 (sequences, scans, etc…)

STORED AND COOLED IONS DIVISION Penning Trap Mass Spectrometry PI-ICR Preliminary Results (Mass differences between 129 Xe and 130 Xe with ToF-ICR and PI-ICR * ) * see S. Eliseev et al., PRL 110, (2013)

STORED AND COOLED IONS DIVISION Acknowledgments Dietrich Beck, Klaus Blaum, Michael Block, Christine Böhm, Holger Brand, Andreas Dörr, Christian Dröse, Sergey Eliseev, Frank Herfurth, Dmitriy Nesterenko, Yuri Novikov, Enrique Minaya Ramirez, Julia Repp, Christian Roux, Lutz Schweikhard, Stefan Stahl, Sven Sturm, Stefan Ulmer and many others Thank you for attention!