detElemId = 713 + (i + kNslats4-1-6);
GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(xSlat4, -ySlat41, -zSlat4 + dzCh4),
TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
sprintf(idSlatCh7,"LC%d",3*kNslats4-2-i);
detElemId = 726 - (i + kNslats4-1-6);
detElemId = 713 + (i + kNslats4-1-6);
GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(xSlat4, -ySlat41, -zSlat4 + dzCh4),
TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
sprintf(idSlatCh7,"LC%d",3*kNslats4-2-i);
detElemId = 726 - (i + kNslats4-1-6);