Changes between Initial Version and Version 1 of NCNROutput1D_Iphi


Ignore:
Timestamp:
May 14, 2008 1:33:49 PM (14 years ago)
Author:
srkline
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • NCNROutput1D_Iphi

    v1 v1  
     1The 1D output files of "annular" averaged SANS data are of the format below.  In this average, a ring at constant q is selected with a width of N pixels, and is averaged into M angular bins. The default number of angular bins, M, is set to 72, and can be changed in the Reduction package preferences. In the output file, there is a header of information describing the sample information (gleaned from the raw data file) and information about the processing steps that were taken to generate the reduced data file. The data is in a 3-column format where the 3 columns are:[[BR]] 
     2 
     31- phi (degrees)[[BR]] 
     42- I(phi) (1/cm)[[BR]] 
     53- standard deviation of I(phi) (1/cm)[[BR]] 
     6 
     7The 2D detector is a normal XY coordinate system when viewed from the neutron source. For the annular average, zero angle (phi) is the positive X-axis, and increases counter-clockwise around q=0. (or anti-clockwise...) 
     8 
     9(only a snippet of the file is shown here) 
     10 
     11{{{ 
     12FILE: SILIC009.SA3_SRK_S109              CREATED: 22-JAN-2008 02:39:11 
     13LABEL: Silica 2 pct in D2O Scatt 1.3M                               
     14MON CNT   LAMBDA   DET ANG   DET DIST   TRANS   THICK   AVE   STEP 
     157.6329e+06  6       20     1.33     0.72501     0.2C   1 
     16BCENT(X,Y)   A1(mm)   A2(mm)   A1A2DIST(m)   DL/L   BSTOP(mm)   DET_TYP  
     17106.8  64.59  50    3    5.4675    0.142    50.8    ORNL   
     18SAM: SILIC009.SA3_SRK_S109 
     19BGD: Unknown file from Average_Panel 
     20EMP: Unknown file from Average_Panel 
     21DIV: Unknown file from Average_Panel 
     22MASK: Unknown file from Average_Panel 
     23ABS Parameters (3-6): Unknown file from Average_Panel 
     24Average Choices: Unknown file from Average_Panel 
     25The 3 columns are | Phi (deg) | I(phi) (1/cm) | std. dev. I(phi) (1/cm) | 
     26              0           302.8           19.03 
     27              5           256.8           13.48 
     28             10           331.9           15.35 
     29             15           286.6           19.86 
     30             20           298.5           11.18 
     31             25           295.4           16.19 
     32             30           300.2           17.84 
     33             35           273.2           11.87 
     34             40           284.6            13.5 
     35             45           277.3            13.8 
     36             50           291.6           23.07 
     37             55           273.4            19.8 
     38             60           263.3           19.41 
     39             65             288           25.21 
     40             70             280           21.35 
     41             75           268.3           23.86 
     42             80           286.9           26.86 
     43             85           294.4           33.18 
     44             90             271           23.13 
     45}}} 
     46[[BR]] 
     47 
     48Back Up to  [wiki:CodeDocs Previous][[BR]] 
     49