High throughput data streaming of individual longitudinal electron bunch profiles

The development of fast detection methods for comprehensive monitoring of electron bunches is a prerequisite to gain comprehensive control over the synchrontron emission in storage rings with their MHz repetition rate. Here, we present a proof-of-principle experiment with at detailed description of our implementation to detect the longitudinal electron bunch profiles via single-shot, near-field electro-optical sampling at the Karlsruhe Research Accelerator (KARA). Our experiment is equipped with an ultra-fast line array camera providing a high-throughput MHz data stream. We characterize statistical properties of the obtained data set and give a detailed description for the data processing as well as for the calculation of the charge density profiles, which where measured in the short-bunch operation mode of KARA. Finally, we discuss properties of the bunch profile dynamics on a coarse-grained level on the example of the well-known synchrotron oscillation.

[1]  R. Sarpong,et al.  Bio-inspired synthesis of xishacorenes A, B, and C, and a new congener from fuscol† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c9sc02572c , 2019, Chemical science.

[2]  W. Marsden.  I and J , 2012 .

[3]  Dariusz Makowski,et al.  KALYPSO: A Mfps Linear Array Detector for Visible to NIR Radiation , 2017 .

[4]  D. Tanner,et al.  Observation of coherent synchrotron radiation from the NSLS VUV ring , 2001 .

[5]  D. Robin,et al.  Experimental Results on Low Alpha Electron‐Storage Rings , 1995 .

[6]  J M Byrd,et al.  Observation of broadband self-amplified spontaneous coherent terahertz synchrotron radiation in a storage ring. , 2002, Physical review letters.

[7]  Suren Chilingaryan,et al.  Commissioning of an Ultra-fast Data Acquisition System for Coherent Synchrotron Radiation Detection , 2014 .

[8]  M. Tigner,et al.  The physics of particle accelerators , 1984 .

[9]  Sara Casalbuoni,et al.  Numerical studies on the electro-optic detection of femtosecond electron bunches , 2008 .

[10]  Phillip Capper.  The Proceedings , 2020, International Arbitration: A Handbook.

[11]  Zhiping Jiang,et al.  Electro-optic measurement of THz field pulses with a chirped optical beam , 1998 .

[12]  A M MacLeod,et al.  Single-shot electron-beam bunch length measurements. , 2002, Physical review letters.

[13]  Tsuyoshi Murata,et al.  {m , 1934, ACML.

[14]  Yunhai Cai,et al.  Threshold studies of the microwave instability in electron storage rings , 2010 .

[15]  R. Rossmanith,et al.  Far Infrared Coherent Synchrotron Edge Radiation at ANKA , 2005, Proceedings of the 2005 Particle Accelerator Conference.

[16]  P. Roy,et al.  Direct Observation of Spatiotemporal Dynamics of Short Electron Bunches in Storage Rings. , 2016, Physical review letters.

[17]  Thomas de Quincey.  [C] , 2000, The Works of Thomas De Quincey, Vol. 1: Writings, 1799–1820.

[18]  P. Kuske,et al.  Coherent emission of synchrotron radiation and longitudinal instabilities , 2003, Proceedings of the 2003 Particle Accelerator Conference.

[19]  Synchrotron oscillation driven by RF phase noise , 1997, Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167).

[20]  J.-P. Ricaud,et al.  Observing microscopic structures of a relativistic object using a time-stretch strategy , 2014, Scientific Reports.

[21]  Michele Caselle,et al.  A Heterogeneous FPGA/GPU Architecture for Real-Time Data Analysis and Fast Feedback Systems , 2017 .

[22]  Giuseppe Penco,et al.  Characterization of coherent THz radiation bursting regime at Elettra , 2010 .

[23]  Lorenzo Rota,et al.  Fast Mapping of Terahertz Bursting Thresholds and Characteristics at Synchrotron Light Sources , 2016, 1605.00536.

[24]  Christophe Szwaj,et al.  Unveiling the complex shapes of relativistic electrons bunches, using photonic time-stretch electro-optic sampling , 2016, 2016 IEEE Photonics Society Summer Topical Meeting Series (SUM).

[25]  Ward Wurtz,et al.  Longitudinal bunch dynamics study with coherent synchrotron radiation , 2016 .

[26]  R. L. Warnock.  A general method for propagation of the phase space distribution, with application to the saw-tooth instability , 2000 .

[27]  Markus Schwarz,et al.  Parallelized Vlasov-Fokker-Planck solver for desktop personal computers , 2016, 1611.05293.

[28]  Anke-Susanne Müller,et al.  Beam Studies with a New Longitudinal Feedback System at the ANKA Storage Ring , 2016 .

[29]  R. Bartolini,et al.  Microbunch Instability Observations from a THz Detector at Diamond Light Source , 2012 .

[30]  S. Heifets,et al.  Beam instability and microbunching due to coherent synchrotron radiation , 2002 .

[31]  S. Marsching,et al.  Electro-Optical Bunch Length Measurements at the ANKA Storage Ring , 2011 .

[33]  R. Nagaoka,et al.  Spatio-temporal dynamics of relativistic electron bunches during the micro-bunching instability in storage rings , 2012 .