1. Detection Scheme of Single Shot Time Resolved X-ray Emission Spectroscopy of Chemical Dynamics at LCLS Kathleen R. Geyer August 12, 2010 Mentor: Dennis Nordlund SULI Presentation August 12, 2010 Kathleen Geyer geyer@slac.stanford.edu

2. UHV End Station Soft X-rays: 0.12 to 12 KeV PES, XAS, and XES

3. How it Works

4. How it works

5. Ideal Smile SULI Presentation August 12, 2010 Kathleen Geyer geyer@slac.stanford.edu

6. Ideal Spectrum SULI Presentation August 12, 2010 Kathleen Geyer geyer@slac.stanford.edu

7. Adimec Opal-1000m/Q High Speed CCD Camera 1 Megapixel resolution SULI Presentation August 12, 2010 Kathleen Geyer geyer@slac.stanford.edu

8. Camera Settings Focus Field of view Minimizing Background – FPS – Exposure time – Gain Settings SULI Presentation August 12, 2010 Kathleen Geyer geyer@slac.stanford.edu

9. Gain Setting Gain = Number of electrons per pixel/number of counts per pixel (ADUs) SULI Presentation August 12, 2010 Kathleen Geyer geyer@slac.stanford.edu

10. SSRL Run: Smile SULI Presentation August 12, 2010 Kathleen Geyer geyer@slac.stanford.edu

11. SSRL SmileIdeal Smile

12. SSRL Run: Spectrum SULI Presentation August 12, 2010 Kathleen Geyer geyer@slac.stanford.edu Raw Data Removed Background

13. Conclusion Averaging of images using background discriminator does not work Next Step: Blob finder program