Ignore:
Timestamp:
Jun 5, 2007 3:57:22 PM (15 years ago)
Author:
srkline
Message:

Updated attenuator tables have been added for NG7 only. NG3 has yet to be measured (JGB). This new calibration is nearly identical to the old table. The new table has also been extrapolated to 4A and to 20A to cover odd situations.

File:
1 edited

Legend:

Unmodified
Added
Removed

  • sans/SANSReduction/trunk/Put in User Procedures/SANS_Reduction_v5.00/NCNR_Utils.ipf

    r116 r118  
    931931 
    932932        NewDataFolder/O root:myGlobals:Attenuators 
    933          
    934         Make/O/N=9 root:myGlobals:Attenuators:ng7att0 
    935         Make/O/N=9 root:myGlobals:Attenuators:ng7att1 
    936         Make/O/N=9 root:myGlobals:Attenuators:ng7att2 
    937         Make/O/N=9 root:myGlobals:Attenuators:ng7att3 
    938         Make/O/N=9 root:myGlobals:Attenuators:ng7att4 
    939         Make/O/N=9 root:myGlobals:Attenuators:ng7att5 
    940         Make/O/N=9 root:myGlobals:Attenuators:ng7att6 
    941         Make/O/N=9 root:myGlobals:Attenuators:ng7att7 
    942         Make/O/N=9 root:myGlobals:Attenuators:ng7att8 
    943         Make/O/N=9 root:myGlobals:Attenuators:ng7att9 
    944         Make/O/N=9 root:myGlobals:Attenuators:ng7att10 
    945          
    946         //each wave has 8 elements, the transmission of att# at the wavelengths  
    947         //lambda = 5,6,7,8,10,12,14,17 
    948         Make/O/N=9 root:myGlobals:Attenuators:ng7lambda={5,6,7,8,10,12,14,17,20} 
    949         root:myGlobals:Attenuators:ng7att0 = {1, 1, 1, 1, 1, 1, 1, 1 ,1} 
    950         root:myGlobals:Attenuators:ng7att1 = {0.418, 0.393, 0.369, 0.347, 0.313, 0.291, 0.271, 0.244, 0.219 } 
    951         root:myGlobals:Attenuators:ng7att2 = {0.189, 0.167, 0.148, 0.132, 0.109, 0.0945, 0.0830, 0.0681, 0.0560} 
    952         root:myGlobals:Attenuators:ng7att3 = {0.0784, 0.0651, 0.0541, 0.0456, 0.0340, 0.0273, 0.0223, 0.0164 , 0.0121} 
    953         root:myGlobals:Attenuators:ng7att4 = {0.0328, 0.0256, 0.0200, 0.0159, 0.0107, 7.98e-3, 6.14e-3, 4.09e-3 , 0.00274} 
    954         root:myGlobals:Attenuators:ng7att5 = {0.0139, 0.0101, 7.43e-3, 5.58e-3, 3.42e-3, 2.36e-3, 1.70e-3, 1.03e-3 , 6.27e-4} 
    955         root:myGlobals:Attenuators:ng7att6 = {5.90e-3, 4.07e-3, 2.79e-3, 1.99e-3, 1.11e-3, 7.13e-4, 4.91e-4, 2.59e-4 , 1.42e-4} 
    956         root:myGlobals:Attenuators:ng7att7 = {1.04e-3, 6.37e-4, 3.85e-4, 2.46e-4, 1.16e-4, 6.86e-5, 4.10e-5, 1.64e-5 ,7.02e-6} 
    957         root:myGlobals:Attenuators:ng7att8 = {1.90e-4, 1.03e-4, 5.71e-5, 3.44e-5, 1.65e-5, 6.60e-6, 3.42e-6, 1.04e-6 , 3.48e-7} 
    958         root:myGlobals:Attenuators:ng7att9 = {3.58e-5, 1.87e-5, 1.05e-5, 7.00e-6, 2.35e-6, 6.35e-7, 2.86e-7, 6.61e-8 , 1.73e-8} 
    959         root:myGlobals:Attenuators:ng7att10 = {7.76e-6, 4.56e-6, 3.25e-6, 2.03e-6, 3.34e-7, 6.11e-8, 2.39e-8, 4.19e-9, 8.60e-10} 
    960          
     933        Variable num=10 
     934        Make/O/N=(num) root:myGlobals:Attenuators:ng7att0 
     935        Make/O/N=(num) root:myGlobals:Attenuators:ng7att1 
     936        Make/O/N=(num) root:myGlobals:Attenuators:ng7att2 
     937        Make/O/N=(num) root:myGlobals:Attenuators:ng7att3 
     938        Make/O/N=(num) root:myGlobals:Attenuators:ng7att4 
     939        Make/O/N=(num) root:myGlobals:Attenuators:ng7att5 
     940        Make/O/N=(num) root:myGlobals:Attenuators:ng7att6 
     941        Make/O/N=(num) root:myGlobals:Attenuators:ng7att7 
     942        Make/O/N=(num) root:myGlobals:Attenuators:ng7att8 
     943        Make/O/N=(num) root:myGlobals:Attenuators:ng7att9 
     944        Make/O/N=(num) root:myGlobals:Attenuators:ng7att10 
     945         
     946        //NG7 wave has 10 elements, the transmission of att# at the wavelengths  
     947        //lambda = 5,6,7,8,10,12,14,17,20 
     948        // note that some of the higher attenuations and ALL of the 20A data is interpolated 
     949        // none of these values are expected to be used in reality since the flux would be too low in practice 
     950        Make/O/N=(num) root:myGlobals:Attenuators:ng7lambda={4,5,6,7,8,10,12,14,17,20} 
     951 
     952// New calibration, June 2007, John Barker 
     953        root:myGlobals:Attenuators:ng7att0 = {1, 1, 1, 1, 1, 1, 1, 1 ,1,1}       
     954        root:myGlobals:Attenuators:ng7att1 = {0.448656,0.4192,0.3925,0.3661,0.3458,0.3098,0.2922,0.2738,0.2544,0.251352} 
     955        root:myGlobals:Attenuators:ng7att2 = {0.217193,0.1898,0.1682,0.148,0.1321,0.1076,0.0957,0.08485,0.07479,0.0735965} 
     956        root:myGlobals:Attenuators:ng7att3 = {0.098019,0.07877,0.06611,0.05429,0.04548,0.03318,0.02798,0.0234,0.02004,0.0202492} 
     957        root:myGlobals:Attenuators:ng7att4 = {0.0426904,0.03302,0.02617,0.02026,0.0158,0.01052,0.008327,0.006665,0.005745,0.00524807} 
     958        root:myGlobals:Attenuators:ng7att5 = {0.0194353,0.01398,0.01037,0.0075496,0.005542,0.003339,0.002505,0.001936,0.001765,0.00165959} 
     959        root:myGlobals:Attenuators:ng7att6 = {0.00971666,0.005979,0.004136,0.002848,0.001946,0.001079,0.0007717,0.000588,0.000487337,0.000447713} 
     960        root:myGlobals:Attenuators:ng7att7 = {0.00207332,0.001054,0.0006462,0.0003957,0.0002368,0.0001111,7.642e-05,4.83076e-05,3.99401e-05,3.54814e-05} 
     961        root:myGlobals:Attenuators:ng7att8 = {0.000397173,0.0001911,0.0001044,5.844e-05,3.236e-05,1.471e-05,6.88523e-06,4.06541e-06,3.27333e-06,2.81838e-06} 
     962        root:myGlobals:Attenuators:ng7att9 = {9.43625e-05,3.557e-05,1.833e-05,1.014e-05,6.153e-06,1.64816e-06,6.42353e-07,3.42132e-07,2.68269e-07,2.2182e-07} 
     963        root:myGlobals:Attenuators:ng7att10 = {2.1607e-05,7.521e-06,2.91221e-06,1.45252e-06,7.93451e-07,1.92309e-07,5.99279e-08,2.87928e-08,2.19862e-08,1.7559e-08} 
     964 
     965// Pre-June 2007 calibration values - do not use these anymore   
     966////    root:myGlobals:Attenuators:ng7att0 = {1, 1, 1, 1, 1, 1, 1, 1 ,1} 
     967////    root:myGlobals:Attenuators:ng7att1 = {0.418, 0.393, 0.369, 0.347, 0.313, 0.291, 0.271, 0.244, 0.219 } 
     968////    root:myGlobals:Attenuators:ng7att2 = {0.189, 0.167, 0.148, 0.132, 0.109, 0.0945, 0.0830, 0.0681, 0.0560} 
     969////    root:myGlobals:Attenuators:ng7att3 = {0.0784, 0.0651, 0.0541, 0.0456, 0.0340, 0.0273, 0.0223, 0.0164 , 0.0121} 
     970////    root:myGlobals:Attenuators:ng7att4 = {0.0328, 0.0256, 0.0200, 0.0159, 0.0107, 7.98e-3, 6.14e-3, 4.09e-3 , 0.00274} 
     971////    root:myGlobals:Attenuators:ng7att5 = {0.0139, 0.0101, 7.43e-3, 5.58e-3, 3.42e-3, 2.36e-3, 1.70e-3, 1.03e-3 , 6.27e-4} 
     972////    root:myGlobals:Attenuators:ng7att6 = {5.90e-3, 4.07e-3, 2.79e-3, 1.99e-3, 1.11e-3, 7.13e-4, 4.91e-4, 2.59e-4 , 1.42e-4} 
     973////    root:myGlobals:Attenuators:ng7att7 = {1.04e-3, 6.37e-4, 3.85e-4, 2.46e-4, 1.16e-4, 6.86e-5, 4.10e-5, 1.64e-5 ,7.02e-6} 
     974////    root:myGlobals:Attenuators:ng7att8 = {1.90e-4, 1.03e-4, 5.71e-5, 3.44e-5, 1.65e-5, 6.60e-6, 3.42e-6, 1.04e-6 , 3.48e-7} 
     975////    root:myGlobals:Attenuators:ng7att9 = {3.58e-5, 1.87e-5, 1.05e-5, 7.00e-6, 2.35e-6, 6.35e-7, 2.86e-7, 6.61e-8 , 1.73e-8} 
     976////    root:myGlobals:Attenuators:ng7att10 = {7.76e-6, 4.56e-6, 3.25e-6, 2.03e-6, 3.34e-7, 6.11e-8, 2.39e-8, 4.19e-9, 8.60e-10} 
    961977End 
    962978 
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