Phone Meeting: HRS-R Carbon runs at th = 24deg. (01/30/2009)


Fitting of Carbon data

1.) 2.)

Fit for the elastic peak. To determine the number of counts in the elastic peak, I have integrated the peak in the 4*sigma region around the position of the maximum.



3.) Fit for the 4.4MeV peak. To determine the number of counts in this peak, I have integrated the peak in the 3*sigma region around the position of the maximum.

4.)

Fitted delta functions vs. Tiefenbach values

5.)

Problems with the carbon data

Additional peak appears in the momentum spectrum:

6.) 7.) 8.)

Determination of the cross-section

Number of counts in the elastic peak vs. collected charge:

9.)

Ratio: (Number of counts)/(Collected charge) prop. to. Cross_section

10.)

Two types of collimators were used in these runs:
1.) 1msr - collimator
2.) Smaller collimator (ellipsoidal) with additional holes on each side.

11.) 12.)