*-- Author :    John V. Morris
      FUNCTION FM2SOV(T)
************************************************************************                                      
*                                                                      *                                      
* Symmetric double Gaussian plus quadratic background.                 *                                      
*                                                                      *                                      
* JVM  31/7/91                                                         *                                      
************************************************************************                                      
*KEEP,FCOMF.                                                                                                  
*KEND.                                                                                                        
* PAR(1 to 3) ; Background = PAR(1) + PAR(2)*T + PAR(3)*T**2                                                  
* PAR(4)      ; Lower peak height                                                                             
* PAR(5)      ; Upper peak height                                                                             
* PAR(6)      ; Drift Velocity in microns/nsec                                                                
* PAR(7)      ; Timing Resolution in nsec                                                                     
* PAR(8)      ; Asymmetry in nsec                                                                             
*