1 / 17

Development of Alternative X-ray Optics

Development of Alternative X-ray Optics. Webster Cash Phil Oakley University of Colorado & Randy McEntaffer University of Iowa. Extended X-ray Off-plane Spectrometer EXOS. Launched November 20, 2006 November 13, 2009. Optical Design: Wire-grid collimator & Off-plane Grating Array.

tessa
Download Presentation

Development of Alternative X-ray Optics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Development of Alternative X-ray Optics Webster Cash Phil Oakley University of Colorado & Randy McEntaffer University of Iowa

  2. Extended X-ray Off-plane Spectrometer EXOS LaunchedNovember 20, 2006November 13, 2009

  3. Optical Design:Wire-grid collimator & Off-plane Grating Array

  4. Extended X-ray Off-plane Spectrograph • 3.25° FOV + 3 m length = 6.7” opening aperture • Wire grid collimator • Off-plane grating array • Gaseous Electron Multiplier (GEM) detectors

  5. Wire-grid collimator

  6. nλ/d β α γ α Off-plane grating array

  7. Off-plane Grating ArraySuitable for IXO

  8. GEM Detectors(Now Baselined for a SMEX)

  9. Collimator calibration FWHM ~ 1.7 mm “scatter” ~ 1%

  10. Target: Cygnus Loop Miyata et al. 2007

  11. 2007 Flight Spectrum 65 seconds, 2 features: 29 counts & 86 counts, 1.8 mm & 1.7 mm FWHM Detector 0 ~ 40.14±2.39 Å, 43.89±1.96 Å Detector 1 ~ 44.78±2.34 Å, 48.53±1.91 Å

  12. Efficiency and Resolution Testing Problem has been adequate beam and enough focal length Optics swings Detector X-ray source 8m 8m • Vacuum test facility at CASA/ARL • Based on a Maxim test facility • Configuration can be changed for specific tests

  13. Optics Testing First Up: a Rigaku K-B Optic KB mirrors X-ray source Detector 8m 8m • Vacuum test facility at CASA/ARL • Configuration can be changed for specific tests

  14. Rigaku K-B Optics 1-D 2-D We will be characterizing a 1-D in the next few months

  15. IXO Holographic Grating KB spherical mirrors Radial groove grating X-ray source Detector 8m 8m • Vacuum test facility at CASA/ARL • Configuration can be changed for specific tests

  16. Raytracing of Test Setup

  17. Summary • Off-plane Gratings now returning interesting x-ray spectra via rocketry • New test facility coming on line • Test of Rigaku Optic • Test of IXO Holographic Grating • IXO Grating Designs and Development • McEntaffer next – after coffee break

More Related