Download presentation
Presentation is loading. Please wait.
Published byRaegan Wooding Modified over 10 years ago
1
Set Data Directory so that GRASP knows where to look for data -File - Set Data Directory - Then browse to data folder
2
Use -Foreground: & Data Load: - Only use this tag for loading data - Type number on Numor(s) line
3
First part of SANS data treatment – Correct for Detector Efficiency Using a scattering substance that scatters uniformally across the detector For this use H 2 O
10
Zoom in around beam transmission Press this icon and drag around beam
11
Press Centre Calc Defines Beam Centre Coordinates
12
Press Te Calc Corrects for absorbance
13
Press Ts Calc Corrects for absorbance
14
Check box to subtract empty cell Check box to subtract cadmium
15
Mask edge of the detector and region behind the beam stop
18
Check box to correct the data
19
Check box to correct for solid angle
20
Check box to correct for instrument setup
21
Calibrates data to water scattering intensity
22
Check box to correct detector efficiency
23
Converts data absolute units
24
Open window for radial regrouping
26
Second part of SANS data treatment – Subtract buffers and correct for absorbance and detector efficiency
33
Calculate beam centre for sample data Transmission of buffer Transmission of sample
34
Check box to subtract Buffer Check box to subtract cadmium
35
Check box to correct the data
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.