Difference between revisions of "A W thesis"
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==Methods of determining atomic concentration in Material== | ==Methods of determining atomic concentration in Material== | ||
| + | ===Neutron Activation Analysis (NAA)=== | ||
| + | === Inductively coupled plasma mass spectrometry(ICP-MS)=== | ||
| + | |||
| + | ===Inductively coupled plasma atomic emission spectroscopy(ICP-OES)=== | ||
| + | |||
| + | ===Atomic Absorption Spectrometry (multi-element AAS) === | ||
=Coincidence Counting Setup= | =Coincidence Counting Setup= | ||
Revision as of 17:38, 25 February 2014
Introduction
Methods of determining atomic concentration in Material
Neutron Activation Analysis (NAA)
Inductively coupled plasma mass spectrometry(ICP-MS)
Inductively coupled plasma atomic emission spectroscopy(ICP-OES)
Atomic Absorption Spectrometry (multi-element AAS)
Coincidence Counting Setup
Y-88 CAA
Ba-133 CAA
Useful commands
Converting CODA data file to ROOT
make sure the CODA and ROOT environmental variables are setup by source the following scripts
source ~/CODA/setup
source ~/ROOT/root/bin/thisroot.csh
Now change to the data subdirectory and execute the program to convert the data file to root
cd /data
~/CODA/CODAreader/ROOT_V5.30/V785V792/evio2nt -fr6994.dat > /dev/null
rename the file so it has the .root extension allowing ROOT to identify it in the browser
mv r6994 r6994.root
Calibration work
System's intrinsic err
Plot calibration parameters as a function of time
determine the variance of the parameters using several (>20) fits
Impact of higher order fits
Plot
Variance comes from several fits,.
Compare uncertainty when fit is E-vs-Channe to Channel-vs-E
Probably should use %error for the weighting