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s800_spectcl [2013/12/12 12:52] pereira [Frequently used parameters for the S800] |
s800_spectcl [2013/12/17 13:15] pereira [(In)elastic scattering of the incoming cocktail beam on a Au target (spectrograph in focus mode)] |
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- | ==== Frequently used parameters for the S800 ==== | + | ==== Frequently used parameters for S800 SpecTcl |
* **s800.fp.ic.sum**: | * **s800.fp.ic.sum**: | ||
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- | Important Variables | + | ==== Frequently used variables for S800 SpecTcl ==== |
(to be set on the " | (to be set on the " | ||
for the CRDCs (n=1,2 for crdc1 and crdc2): | for the CRDCs (n=1,2 for crdc1 and crdc2): | ||
- | • s800.fp.crdcn | ||
- | o .x_offset: | ||
- | o .x_slope: the slope of the x calibration. This value is always 2.54 mm/pad since the geometry of the pads inside the CRDCs is fixed | ||
- | o .y_offset: | ||
- | o .y_slope: y slope in mm/ns to be determined from the mask calibration | ||
- | • s800.fp.crdcn.calc | + | * **s800.fp.crdc1** and **s800.fp.crdc2** |
- | o .method: 1 sets " | + | * **.x_offset**: |
- | o .gravity_width: | + | * **.x_slope**: |
- | o .fit_width: number of pads taken for the Gaussian fit | + | * **.y_offset**: |
- | o .badpads: total number of pads declared as " | + | * **.y_slope**: |
- | o .badpad.mm: declares pad no. mm as "bad pad" and removes it from the calculation that determines the x position | + | * **s800.fp.crdc1.calc** and **s800.fp.crdc2.calc** |
+ | * **.method**: 1 sets " | ||
+ | * **.gravity_width**: sets the number of pads used to determine the center of gravity | ||
+ | * **.fit_width**: number of pads taken for the Gaussian fit | ||
+ | * **.badpads**: total number of pads declared as " | ||
+ | * **.badpad.mm**: declares pad no. mm as "bad pad" and removes it from the calculation that determines the x position | ||
+ | * **s800.fp.track** | ||
+ | * **.order**: sets the order to which the reconstruction (inverse map) will be performed (typically 5th order) | ||
+ | * **.map.maxorder**: | ||
+ | * **.anglea** and **angleb**: offset in angle (dispersive and non-dispersive) of the incoming beam hitting the target. The reconstruction assumes a beam without initial angles. The variables anglea and angleb have to be adjusted to center the angle distribution in the spectrum "bta vs. ata" so that the incoming angles are accounted for in the reconstruction | ||
+ | * **s800.tof** | ||
+ | * **.objCorrection**, | ||
+ | * **.xfpCorrection**, | ||
+ | |||
- | • s800.fp.track | + | ===== Sample spectra ===== |
- | o .order: sets the order to which the reconstruction (inverse map) will be performed (typically 5th order) | + | The following figures depict some of the S800 SpecTcl |
- | o .map.maxorder: | + | |
- | o anglea and angleb: offset in angle (dispersive and non-dispersive) | + | |
- | • s800.tof | + | ==== Energy loss in the ion chamber vs. time of flight |
- | o objCorrection, | + | |
- | o xfpCorrection, | + | {{:wiki: |
- | + | ||
+ | // | ||
+ | // | ||
+ | // | ||
+ | // | ||
+ | // | ||
+ | // | ||
+ | |||
+ | ====(In)elastic scattering | ||
+ | {{: | ||
+ | ==== Sn-124 primary beam passing a thick Al viewer at the target position (focused optics) ==== | ||
+ | {{: | ||