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µSR

Chapters:

  1. Introduction
  2. The muon
  3. Muon production
  4. Spin polarization
  5. Detect the µ spin
  6. Implantation
  7. Paramagnetic species
  8. A special case: a muon with few nuclei
  9. Magnetic materials
  10. Relaxation functions
  11. Superconductors
  12. Mujpy
  13. Mulab
  14. Musite?
  15. More details

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  • Notes after double ## added in October 2020.
  • ## single chisquare fit of UD and FB, local alphas in RUN block, map allows local asymmetries for the two groups .
MgTi438, Fe2As2Ca4(Mg,Ti)3O8, 07-2011                         
###############################################################
FITPARAMETER
#       No Name        Value     Step        Pos_Error   Boundaries
        1 alphaUD     0.9631    0.0011      none        
        2 AsyUD       0.25848   0.00082     none        
        3 PhaseUD     -41.65    0.27        none        
        4 Field       29.193    0.019       none        
        5 sigma       0.0666    0.0036      none        0       none    
        6 alphaFB     0.7714    0.0013      none        
        7 AsyFB       0.2324    0.0013      none        
        8 PhaseFB     47.19     0.32        none        

###############################################################
THEORY
asymmetry   map1                                                   ## this means that in the first RUN the asymmetry parameter is par 2, AsyUD, in the second RUN map1 is 7, AsyFB
TFieldCos   map2  fun1       (phase frequency)                     ## this means that frequency is always Field*gamma_mu, and phase is 3, PhaseUD, and 8, PhaseFB in the two RUNS
simpleGss      5          (rate)

###############################################################
FUNCTIONS
fun1 = par4 * gamma_mu

###############################################################
RUN d2011/tdc/deltat_tdc_gps_1557 PIM3 PSI PSI-BIN   (name beamline institute da
ta-file-format)
fittype         2         (asymmetry fit)
alpha           1                                                 ## this,1  alphaUD, is a RUN specific parameters 
map             2    3    0    0    0    0    0    0    0    0
forward         3       
backward        4       
background      7       291     5       297     
data            304     10228   313     10216   
t0              298     307
fit             0       10     
packing         1

RUN d2011/tdc/deltat_tdc_gps_1557 PIM3 PSI PSI-BIN   (name beamline institute da
ta-file-format)
fittype         2         (asymmetry fit)
alpha           6                                                 ## this,6  alphaFB, is a RUN specific parameters 
map             7    8    0    0    0    0    0    0    0    0
forward         2       
backward        1       
background      7       291     5       286
data            304     10228   304     10216   
t0              297     298     
fit             0       10     
packing         1

###############################################################
COMMANDS
MINIMIZE
#MINOS
SAVE

###############################################################
FOURIER
units            MHz    # units either 'Gauss', 'MHz', or 'Mc/s'
fourier_power    12
apodization      MEDIUM  # NONE, WEAK, MEDIUM, STRONG
plot             POWER   # REAL, IMAG, REAL_AND_IMAG, POWER, PHASE
phase            8
#range_for_phase_correction 50.0 70.0
range            0    400

###############################################################
PLOT 2   (asymmetry plot)
runs     1   2   
range    -0   10   -0.29   0.29
view_packing 50
###############################################################
STATISTIC --- 2011-07-12 11:12:50
  chisq = 19939.092, NDF = 19819, chisq/NDF = 1.00605944

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Page last modified on October 12, 2020, at 08:33 AM