Opened 8 years ago

Closed 8 years ago

Last modified 8 years ago

#474 closed defect (fixed)

slit smearing is broken in 3.1

Reported by: pkienzle Owned by: Paul Kienzle <pkienzle@…>
Priority: major Milestone: SasView 3.1.2
Component: SasView Keywords:
Cc: Work Package: SasView Bug Fixing


I'm following up on our conversation earlier about the smearing in sasview 3.1.1. I noticed that the slit smearing in 3.1.1 had strange behavior at high-q - namely a sharp drop off at the highest q-values, but I didn't see this behavior in 3.0.0. To investigate this discrepancy, I calculated the unsmeared and slit smeared scattering intensity for the teubner-strey model with four independent pieces of code: Jan Ilavsky's software, sasview 3.0.0, sasview 3.1.1, and my own code.

All codes reproduce the unsmeared intensity identically.

Jan's code, my code, and sasview 3.0.0 smear the model nearly identically, but sasview 3.1.1 is far off.

Attachments (1)

Slit smearing in sasview.pdf (164.5 KB) - added by pkienzle 8 years ago.

Download all attachments as: .zip

Change History (3)

Changed 8 years ago by pkienzle

comment:1 Changed 8 years ago by Paul Kienzle <pkienzle@…>

  • Owner set to Paul Kienzle <pkienzle@…>
  • Resolution set to fixed
  • Status changed from new to closed

In [80ba1a2137352c44778c86431353df4ba1f0b6a7]:

Fix slit resolution for q_parallel and mixed q_perp and q_parallel. Fixes #474.

comment:2 Changed 8 years ago by butler

  • Milestone changed from SasView 4.0.0 to SasView 3.2.2
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