Difference between revisions of "34ID-E Coordinate Systems"

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=== X-Y-Z ===
=== X-Y-Z ===
[[Image:Coordinates_beamline.png|right|border|400px]]
[[Image:Coordinates_beamline.png|right|thumb|400px|34IDE beamline XYZ and XHF coordinate systems, side view from outside of the ring.]]


* X: radial direction of the ring, horizontal, pointing outboard to the doors.
* X: radial direction of the ring, horizontal, pointing outboard to the doors.
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=== X-H-F ===
=== X-H-F ===
Because we routinely deal with motions in 45°-tilted directions, H and F are introduced as alternative coordinates to Y and Z:
Because we routinely deal with motions in 45°-tilted directions, H and F are introduced as alternative coordinates to Y and Z:
* H:
* H: 45° upward-downstream (combination of +Y and +Z), this is the typical movement direction of the [[Differential Aperture|depth-profiling wire]].
* F:
* F: 45° downward-downstream (combination of -Y and +Z), this is the "focus" direction of the sample under the optical microscope.
<math>H = \frac{1}{\sqrt{2}}(Y+Z)</math>
 
<math>F = \frac{1}{\sqrt{2}}(-Y+Z) </math>
 
<br clear=all>


== Detector Coordinates ==
== Detector Coordinates ==


== Coordinate Systems in Data Analysis ==
== Coordinate Systems in Data Analysis ==

Revision as of 21:40, 4 October 2013

(This article/section is incomplete, please check back again or help expanding it)

Beamline Coordinates

X-Y-Z

34IDE beamline XYZ and XHF coordinate systems, side view from outside of the ring.
  • X: radial direction of the ring, horizontal, pointing outboard to the doors.
  • Y: vertically upward (against gravity).
  • Z: along the x-ray beam

X-H-F

Because we routinely deal with motions in 45°-tilted directions, H and F are introduced as alternative coordinates to Y and Z:

  • H: 45° upward-downstream (combination of +Y and +Z), this is the typical movement direction of the depth-profiling wire.
  • F: 45° downward-downstream (combination of -Y and +Z), this is the "focus" direction of the sample under the optical microscope.

<math>H = \frac{1}{\sqrt{2}}(Y+Z)</math>

<math>F = \frac{1}{\sqrt{2}}(-Y+Z) </math>


Detector Coordinates

Coordinate Systems in Data Analysis