<b>DEELS 2016</b>

27 Jun 2016, 08:00 → 28 Jun 2016, 18:00 Europe/Berlin

Seminar Room 1 (Deutsches Elektronen-Synchrotron (DESY) <br>Notkestraße 85 <br>22607 Hamburg (GERMANY))

Gero Kube

DESY is glad to host the third "Diagnostics Experts of European Light Sources" (DEELS) workshop. The goal of the workshop is to bring the diagnostics community together, to discuss common problems, share new developments, and enhance synergies between different facilities. There is no registration fee for the workshop, but costs of accommodation and transportation of each participant shall be covered by their home institute. We hope that this third edition will also become a suitable occasion for a fruitful, fluid and pleasant way of sharing our working experience.

Monday 27 June

1 Welcome

Speaker: Gero Kube (DESY)

Slides DEELS_Welcome.pptx

2 Beam Diagnostics at the E-XFEL

Speaker: Dirk Nölle (DESY)

Slides 20160624_XFEL_diagnostics_DEELS.pptx

3 ELI Gamma Beam System (ELI-GBS) Linac diagnostics

Speaker: Marco Marongiu (INFN Roma1)

Slides ELI-GBS_Linac_diagnostics.pptx

4 Upgrade & extension of beam position, relative charge and beamloss measurements in the TL-2 transfer-line

Speaker: Benoît Roche (ESRF)

Slides TL2.pptx

10:30 Coffee break

Coffee break

5 2D SR interferometer studies at PETRA

Speaker: Artem Novokshonov (DESY and Tomsk Polytechnic University)

Slides Novokshonov_DEELS16.pptx

6 Latest results using interferometry at ALBA

This presentation shows the latest results obtained using the visible light interferometry at ALBA. On one side, we describe how the transverse beam shape can be reconstructed and detect beam tilts; and secondly, we present the first (qualitative) measurements of the bunch-by-bunch beam size.

Speaker: Ubaldo Iriso (ALBA-CELLS)

Slides Ubaldo_DEELS16_Interfero_v1.pptx

7 DIAMOND pinhole camera - update on changes

Speaker: Alun Morgan (Diamond Light Source)

Slides DEELS_2016_AM_pinhole.pptx

8 Feasibility measurements for an in-air X-ray detector

Speaker: Nicolas Hubert (Synchrotron SOLEIL)

Slides SOLEIL_AXD.pptx

13:00 Lunch

Lunch

XFEL visit

Visit of XFEL injector and beginning of tunnel

Convener: Dr Dirk Nölle (DESY, MDI)

9 New features of the Fast Orbit Correction system of the ESRF storage ring

Speaker: Eric Plouviez (ESRF)

Slides DEELS16_1_[Compatibility_Mode].pdf

10 The Orbit Correction Scheme of the future Extremely Brilliant Source of the ESRF

Speaker: Eric Plouviez (ESRF)

Slides DEELS16FOCebs_[Compatibility_Mode].pdf

11 New Bunch-by-Bunch feedback at Diamond

Diamond is currently building a longitudinal bunch-by-bunch feedback. The electronics for that are based on COTS parts in uTCA, providing 500MS/s 14bit ADC and DAC, Virtex7 FPGA and 4 core Xeon Processor. We report on where we are on the project.

Speaker: Günther Rehm (Diamond Light Source)

Slides DEELS16_New_BBFB.pptx

16:30 Coffee break

Coffee break

12 Status of BPM-buttons, BPM-blocks, Chambers

Speaker: Mr Bertus Kees SCHEIDT (ESRF)

Slides DEELS2016_StatusofESRF_BPMbuttons_etc.pdf

13 Accurate beam position calculation for large off-center positions

Speaker: Mr Benoît Roche (ESRF)

Slides LUT.pptx

19:30 Workshop Dinner

Workshop Dinner in Restaurant "Block Bräu", Bei den St. Pauli Landungsbrücken 3, 20359 Hamburg

Tuesday 28 June

14 New trends in beam diagnostics - Zynq XX based instruments

There is a population of instruments built around Zynq7020 covering several applications: beam position (storage ring, linear), photon beam position, beam loss monitoring and as simple as digitizer. Laboratories, such as INFN, SPring-8 and PAL require higher sampling rates, more flexibility in the analog front-end and wider choice of connectivity (e.g. optical). The next generation of Zynq XX based instruments might be built as independent digital and analog front-end while retaining the software infrastructure that supports EPICS, TANGO and other clients out of the box. Possible candidates are the cavity BPM electronics and multi-channel digitizer, both with 250 MHz to 500 MHz sampling rates and optional exchangeable analog front end.

Speaker: Peter Leban (I-Tech)

Slides DEELS_2016_Peter_Leban.pdf

15 Test results of the new BPM electronics for the extra BPMs in EBS-ESRF

Speaker: Mr Bertus Kees SCHEIDT (ESRF)

Slides DEELS2016_ESRF_SPARK_BPM_status.pdf

16 Libera modules - Electron type reliability status for SOLEIL and Brilliance+ acceptance tests for ThomX

Speaker: Nicolas Hubert (Synchrotron SOLEIL)

Slides SOLEIL_Liberas.pptx

10:30 Coffee break

Coffee break

17 Modulating RF phase at twice synchrotron frequency

By modulating the cavity RF phase at twice synchrotron frequency, bunches can be lengthen and shortened. We have done this both in normal optics (17ps bunch length) and in low-alpha optics (3ps bunch length). The effects can be nicely observed on the streak camera.

Speaker: Günther Rehm (Diamond Light Source)

Slides DEELS16_Modulating_RF_Phase.pptx

18 ALBA BLM studies and historical analysis

During 5 years of operation in the 3 GeV storage ring of ALBA, the 124 beam loss monitors have provided measurements of relative losses around the machine, with around 10% of breakdown units. We analyzed these failures and correlate the integrated received dose with any special conditions of each BLM location which might have led to their breakdown. We also show studies of beam losses in the insertion devices, with particular attention to the results in the MPW, where the vacuum chamber is (suspected to be) misaligned and high BLMs counts are detected.

Speaker: Andriy Nosych (ALBA-CELLS)

Slides deels2016_anosych_v2.pptx

19 Development of new BLM system with both new detector heads and signal acquisition system

Speaker: Mr Bertus Kees SCHEIDT (ESRF)

Slides

• BeamLossDetectorsESRF-DEELS.pdf
• BeamLossDetectorsESRF-DEELS.pdf
• BeamLossDetectorsESRF-DEELS.pptx
• UndulatorsDEELS.pdf

12:45 Lunch

Lunch

PETRA visit

Visit of the PETRA 3 tunnel

Convener: Dr Gero Kube (DESY)

20 Status of SwissFEL Diagnostics

Speaker: Volker Schlott (PSI)

Slides DEELS-2016_DESY_SwissFEL-Diagnostics-Overview-Talk_SV84.ppt

21 Status of the Solaris 1.5 GeV Storage Ring

The Solaris is a third generation light source constructed in Poland consisting of a 600 MeV linear injector and 1.5 GeV storage ring. The layout of the storage ring is based on a novel Double Bend Achromat (DBA) magnets designed in MAX-IV Laboratory in Sweden. During the commissioning phase of the Solaris storage ring the performance of this innovative concept has been succesfully verified and obtained parameters allowed to start the commissioning of the first beamline. The beam diagnostics and instrumentation system is beased mostly on 36 quarter-wave button BPMs spreaded along the ring what allowed to measure and monitor several beam parameters like closed orbit, tune, chromaticity, disperssion, orbit response durin the commissioning and operation phases. The results of the the latest machine optimization including the orbit correction, linear optics measurements and beam-based alignment will be presented.

Speaker: Arkadiusz Kisiel (Solaris)

Slides AKisiel_Solaris.pdf

22 Refurbishment of the screen diagnostic system at ANKA

The screen diagnostic presently is based on analog cameras and direct displaying the image on TV screen using a video switch. It is planned to replace this system by a system based on digital Cameras and central image processing. The concept and the given constrains will be discussed.

Speaker: Marcel Schuh (KIT)

Slides 2016-DEELS_Schuh.pdf

23 Performance studies of CCD cameras based on signal-to-noise and photon transfer measurements

Taking advantage of the rapid development and the huge market for commercial available optical sensors, in the past years optical measuring techniques took on greater significance. Nowadays, area scan CCD or CMOS sensors are widely used for beam profile diagnostics. They provide the full two-dimensional information about the particle beam distribution, allowing in principle to investigate shot-to-shot profile fluctuations at moderate repetition rates. In order to study the performance and to characterize these cameras, photon transfer is a widely applied popular and valuable testing methodology. In this contribution, performance studies based on signal-to-noise and photon transfer measurements are presented for CCD cameras which are in use for beam profile diagnostics at different DESY accelerators.

Speaker: Gero Kube (DESY)

Slides Kube_DEELS2016.pptx

24 Final remarks

Speaker: Gero Kube (DESY)