--- gpamela/history/v_100.txt	2006/10/13 16:36:59	3.17
+++ gpamela/history/v_100.txt	2006/11/10 11:39:35	3.18
@@ -1,7 +1,10 @@
 #
-# $Id: v_100.txt,v 3.16 2006/10/12 11:11:21 pam-ba Exp $
+# $Id: v_100.txt,v 3.17 2006/10/13 16:36:59 pam-ba Exp $
 #
 # $Log: v_100.txt,v $
+# Revision 3.17  2006/10/13 16:36:59  pam-ba
+# Added a new material, the cadmium, for ND
+#
 # Revision 3.16  2006/10/12 11:11:21  pam-ba
 # ND geometry updated.
 #
@@ -64,10 +67,37 @@
 #CMZ :  1.00/01 28/11/95  18.51.23  by  Francesco Cafagna
 #-- Author :    Francesco Cafagna   28/11/95 
 
+November 2006, Bari
+
+TOF POSITIONS DEFINITELY UPDATED:
+S2 and S1 have been positioned again, after the simulation of the top plate.
+Before now, the positions were put ad hoc based on the positions given by
+Sergio Ricciarini in the document 'Main geometrical parameters of the PAMELA
+sub-detectors' released by O. Adriani, L. Bonechi, E. Mocchiutti and
+S. Ricciarini on the 20th of December 2005.. These positions were
+lightly approximated.
+
+ND GEOMETRY COMPLETED.
+The He3 and the polyethylene (CH2) have been added to fill
+the volumes NDTI and NDPB in the neutron detector. Leonov gave us the
+details of these materials.
+
+TOP PLATE GEOMETRY ADDED.
+The top plate geometry has been simulated as a N2 box that has the same
+dimensions of CATA. Inside it, at the right positions, there are S2 and CATA.
+The real top plate is a rectangular window having a thickness of 0.5 cm
+(volume TPTL emptied by the volume TPCV). This volume is filled with a mixture 
+of titanium (90%), aluminum (6%) and vanadium (4%). Other parts of titanium
+are the four volumes TPTU, which are positioned at the corners of TPTL at the
+same height of CATA, and the four volumes TPTM, which are positioned at the
+corners of TPTL, at the same height of S2. 
+The geometry  of the top plate is based on a simplified version of the CAD
+drawings. 
+
 October 2006, Bari
 
 The geometry of the neutron detector has been updated. Some dimensions of some
-volumes have been corrected while the aluminum cover and the aluminum boxes to
+volumes have been corrected and the aluminum cover and the aluminum boxes to
 put the cables have been added. A new material, the cadmium, has been also
 defined.