To view this presentation:

  • If you have an MRS account, click the Login button above.
  • New to MRS?  Create a free account here



  0       0

2014 MRS Fall Meeting


TT6.03 - Depth Resolved X-Ray Powder Diffraction with Spiderweb Slits


Dec 3, 2014 2:15pm ‐ Dec 3, 2014 2:30pm

Description

We present a novel system of slits, called spiderweb slits, for depth-resolved high energy x-ray powder diffraction experiments. The slits select diffracted x-rays from a gauge volume of a sample while greatly attenuating diffracted x-rays from other sources in the path of the x-ray beam. This capability can be used to block diffraction from battery cell containers, reaction cell windows, or pressure cell windows, thus enhancing many in-situ experiments. High energy x-rays in combination with the depth resolution provided by the spiderweb slits can provide information from specific locations within a polycrystalline material under standard conditions or while working under mechanical, chemical or electric load or extreme conditions. The spiderweb slits function similarly to conical slits or spiral slits, but in this design, select large azimuthal fractions of the Debye-Scherrer diffraction cones for any possible diffraction cone over the area of the slits, while preserving the integrated diffraction peak relative intensities and peak widths, greatly improving performance and versatility compared to previous slit systems. The first slit prototype was applied to several experiments at the X17A beamline at the National Synchrotron Light Source, and these results are presented and compared with ray-tracing simulations. The spiderweb slits will be utilized at the National Synchrotron Light Source II X-ray Powder Diffraction (XPD) beamline.

Speaker(s):

You must be logged in and own this session in order to post comments.

Print Certificate
Review Answers
Print Transcript
Completed on: token-completed_on
Review Answers
Please select the appropriate credit type:
/
test_id: 
credits: 
completed on: 
rendered in: 
* - Indicates answer is required.
token-content

token-speaker-name
token-index
token-content
token-index
token-content
token-index
token-content
token-index
token-content
token-index
token-content
token-index
token-content
/
/
token-index
token-content
token-index
token-content