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From Doppler broadening spectroscopy, we get the S-parameter and W-parameter. I found a S-W correlation plot in many research papers. What information does this plot provide?

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  • $\begingroup$ I do not understand the connection between Doppler and positron annihilation. The gamma line at 511 keV is narrow, it is difficult to measure its width. $\endgroup$ – Pieter Oct 23 at 12:42
  • $\begingroup$ You need detectors having a high energy resolution power. We are using high purity germanium detectors for this purpose. $\endgroup$ – Prabhupada Dixit Oct 25 at 5:17

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