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--- s800_spectcl [2013/12/12 12:40]
pereira created
+++ s800_spectcl [2013/12/12 12:51]
pereira [Frequently used parameters for the S800]
@@ Line 12: / Line 12: @@
-The TreeParameter class
-The TreeParameter class provides a mean to implement parameters in SpecTcl in a tree-like structure and without the need to specify parameter identification numbers. The parameters are referred to by their names only, which at the same time indicate their location in the tree. This reference mechanism is valid for both the coding part of SpecTcl (C++ code) and the interpreter part (Tcl/Tk shell). It eliminates the confusion induced by the use of numerals to refer to the parameters, and allows the user to organize the parameters in a logical fashion.
+===== The TreeParameter class =====
+The TreeParameter class provides a mean to implement parameters in SpecTcl in a tree-like structure and without the need to specify parameter identification numbers. The parameters are referred to by their names only, which at the same time indicate their location in the tree. This reference mechanism is valid for both the coding part of SpecTcl (C++ code) and the interpreter part (Tcl/Tk shell). It eliminates the confusion induced by the use of numerals to refer to the parameters, and allows the user to organize the parameters in a logical fashion.
-Frequently used parameters for the S800
-•	s800.fp.ic.sum: energy loss measured with the ion chamber
+==== Frequently used parameters for the S800 ====
-•	s800.fp.crdc1 s800.fp.crdc2
+  * **s800.fp.ic.sum**: energy loss measured with the ion chamber
-o	.x and .y: x and y positions of the particles hitting the CRDCs (calibrated)
-o	.tac: the raw drift time of the electrons in the CRDCs which finally relates to the y position via the mask calibration
-o	.calc.x_gravity, .calc.x_fit: the x position in the CRDCs calculated using two methods (center-of-gravity or Gaussian fit) to determine the CRDC x position from the charge distribution induced in the pads by the electrons drifting towards the anode wire.
-o	.anode: amplitude of the CRDC anode signal (used for diagnostics)
-•	s800.fp.track
-o	.afp: dispersive angle in the focal plane calculated from the x-y positions of the particles measured with the CRDCs
-o	.ata and .bta: dispersive and non-dispersive angle of the particles after interaction with the reaction target. These parameters are reconstructed using the "inverse map"
-o	.dta: kinetic energy of the particles determined from the CRDC's x-postions and the spectrograph Brho. Using the relativistic relation between energy and momentum yields the momentum distribution of the particles
-o	.scatter: the particle's scattering angle off the target calculated from the reconstructed parameters "ata" and "bta"
-•	s800.tof
+  * **s800.fp.crdc1 s800.fp.crdc2**
-o	.rf: time of flight relative to the cyclotron RF
+    * **.x** and **.y**: x and y positions of the particles hitting the CRDCs (calibrated)
-o	.obj, .obje1, obje2: time of flight between the S800 trigger scintillator and the object scintillator. Endings e1 and e2 indicate flight-path corrections beeing applied, for example using information from the scintillators E1 or E2 .
+    * **.tac**: the raw drift time of the electrons in the CRDCs which finally relates to the y position via the mask calibration
-o	.xfp, .xfpe1, .xfpe2: time of flight between the S800 trigger scintillator and the extended focal plane scintillator of the A1900
+    * **.calc.x_gravity**, **.calc.x_fit**: the x position in the CRDCs calculated using two methods (center-of-gravity or Gaussian fit) to determine the CRDC x position from the charge distribution induced in the pads by the electrons drifting towards the anode wire.
+    *  .anode: amplitude of the CRDC anode signal (used for diagnostics)
+  * **s800.fp.track**
+    * **.afp**: dispersive angle in the focal plane calculated from the x-y positions of the particles measured with the CRDCs
+    * **.ata** and **.bta**: dispersive and non-dispersive angle of the particles after interaction with the reaction target. These parameters are reconstructed using the "inverse map"
+    * **.dta**: kinetic energy of the particles determined from the CRDC's x-postions and the spectrograph Brho. Using the relativistic relation between energy and momentum yields the momentum distribution of the particles
+    * **.scatter**: the particle's scattering angle off the target calculated from the reconstructed parameters "ata" and "bta"
+  * s800.tof
+    *.rf: time of flight relative to the cyclotron RF
+    *.obj, .obje1, obje2: time of flight between the S800 trigger scintillator and the object scintillator. Endings e1 and e2 indicate flight-path corrections beeing applied, for example using information from the scintillators E1 or E2 .
+    *.xfp, .xfpe1, .xfpe2: time of flight between the S800 trigger scintillator and the extended focal plane scintillator of the A1900

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