1. AFAD 2014 15-16Jan2014@Australian Synchrotron Status of Compact X-ray Source at LUCX Kazuyuki Sakaue Waseda University Laser Undulator Compact X-ray source

2. AFAD 2014 15-16Jan2014@Australian Synchrotron LCS and LUCX Laser-Compton Scattering

3. AFAD 2014 15-16Jan2014@Australian Synchrotron LUCX Facility Outlook Accelerating Structure Optical Storage Cavity X-ray Detector

4. AFAD 2014 15-16Jan2014@Australian Synchrotron LUCX accelerator

5. AFAD 2014 15-16Jan2014@Australian Synchrotron EnergyRepetitionBunch SpaceChargeN. bunch 23-28MeV357MHz2.8ns1.37nC300 Size(H)Size(V)Bunch lengthEmi (H)Emi (V) 85um95um15ps10πmmmrad7πmmmrad Electron Beam Parameters at Collision Point Electron Beam Parameters 85μm×95μm

6. AFAD 2014 15-16Jan2014@Australian Synchrotron LUCX 4-mirror optical super-cavity

7. AFAD 2014 15-16Jan2014@Australian Synchrotron LUCX 4-mirror optical super-cavity

8. AFAD 2014 15-16Jan2014@Australian Synchrotron LUCX 4-mirror optical super-cavity

9. AFAD 2014 15-16Jan2014@Australian Synchrotron WavelengthRepetitionPulse SpacePowerPulse energy 1064nm357MHz 214kW600uJ Size(H)Size(V)Pulse durationFinesseCol. angle 89um85um7ps3357.5° Laser Parameters at Collision Point Laser Cavity Parameters

10. AFAD 2014 15-16Jan2014@Australian Synchrotron Stability of stored pulse intensity >15% rms >about 0.2nm accuracy of cavity length adjustment achieved Laser Power Stabilize 0.2nm accuracy

11. AFAD 2014 15-16Jan2014@Australian Synchrotron Summary of Laser-Electron Beam Parameters at the photon-electron collision point LASER ELECTRON WavelengthRepetitionPowerPulse energy 1064nm357MHz214kW600uJ Size(H)Size(V)Pulse durationCol. angle 89um85um7ps7.5° EnergyRepetitionChargeN. bunch 23-28MeV357MHz1.37nC300 Size(H)Size(V)Bunch lengthEmi (H)Emi (V) 85um95um15ps10πmmmrad7πmmmrad 9keV LCS X-ray Energy Laser-Electron Parameters

12. AFAD 2014 15-16Jan2014@Australian Synchrotron Timing System at LUCX Extremely high accuracy of control for optical cavity >~0.2nm Laser master system >stabilize the control of cavity >w/o affection for accelerator >jitter between electron and laser Less than 0.4ps Laser Master Timing System Conventional Accelerator Timing System Laser Master Clock System

13. AFAD 2014 15-16Jan2014@Australian Synchrotron As X-ray detector, MCP (Micro-Channel Plate) was used for detecting LCS X-ray and achieving the X-ray image X-ray detector -MCP-

14. AFAD 2014 15-16Jan2014@Australian Synchrotron Diagram of Imaging Setup ○MCP is the largest S/N detector for LCS ○I.I. for gating the LCS from BG ○Large gain with MCP (~10^7) and I.I. (~10^4) ＞ Spatial resolution will be bad but suitable for first detection X-ray detector -MCP-

15. AFAD 2014 15-16Jan2014@Australian Synchrotron Timing Scan Timing search

16. AFAD 2014 15-16Jan2014@Australian Synchrotron Position Scan Horizontal Vertical Position search

17. AFAD 2014 15-16Jan2014@Australian Synchrotron Intensity Intensity dependence

18. AFAD 2014 15-16Jan2014@Australian Synchrotron High Energy Resolution Detector CdTe semiconductor Collision point X-ray CdTe Detector CdTe detector inside the Pb block X-ray Energy Measurement by CdTe

19. AFAD 2014 15-16Jan2014@Australian Synchrotron X-ray Energy Measurement by CdTe Energy spectrum by CdTe detector

20. AFAD 2014 15-16Jan2014@Australian Synchrotron X-ray Energy Measurement by CdTe Changing electron beam energy shifts the LCS X-ray energy

21. AFAD 2014 15-16Jan2014@Australian Synchrotron X-ray Energy Measurement by CdTe Changing electron beam energy shifts the LCS X-ray energy

22. AFAD 2014 15-16Jan2014@Australian Synchrotron Y. Arai et al., Nucl. Instrum. Meth., A636(2011)S31-S36 LCS X-ray Detection by SOI Sensor SOI pixel sensor is the semiconductor detector using SOI (Silicon-On- Insulator) technique >detection and read out are on same board. >high S/N and high spatial resolution

23. AFAD 2014 15-16Jan2014@Australian Synchrotron Photon Spectrum by SOI Pixel Sensor 8~9keV X-ray was observed LCS X-ray Detection by SOI Sensor

24. AFAD 2014 15-16Jan2014@Australian Synchrotron Energy Bandwidth (within collimator) X-ray / pulse (SOI) 8~9keV8% b.w.36.4 ph/pulse X-ray/train (SOI)X-ray/train (Total)X-ray/sec (Total) 5460 ph/train1.4×10 6 ph/train 1.8×10 7 ph/sec (12.5Hz) CAIN Simulation results 1Train (SOI)1Train (Total) 70152.2×10 7 LCS X-ray specification at LUCX

25. AFAD 2014 15-16Jan2014@Australian Synchrotron X-ray Test Image MCP + I.I. 30keV X-ray (IC) 15keV X-ray (Fish backbone) LCS X-ray Imaging

26. AFAD 2014 15-16Jan2014@Australian Synchrotron X-ray Test Image by SOI pixel sensor Chili Head part of small fish LCS X-ray Imaging

27. AFAD 2014 15-16Jan2014@Australian Synchrotron Conclusions We have been developing LCS X-ray source at KEK-LUCX 28MeV electron linac based on SW accelerator 4-mirror planar Super-cavity with 600uJ storage LCS X-ray experiment at 9keV X-ray >Number of photon 1.8×10 7 Photon/sec/total band >SOI sensor was firstly used and show good result Further X-ray flux is required for application (Imaging/Crystal structure analysis/etc.) >increase number of bunch for accelerator >increase stored power in optical cavity power is limited by damage on mirror surface >enlarge the spot size