//
// ********************************************************************
// * DISCLAIMER                                                       *
// *                                                                  *
// * The following disclaimer summarizes all the specific disclaimers *
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// * govern, are listed with their locations in:                      *
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// * work  make  any representation or  warranty, express or implied, *
// * regarding  this  software system or assume any liability for its *
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// * This  code  implementation is the  intellectual property  of the *
// * GEANT4 collaboration.                                            *
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// ********************************************************************
//
#ifndef G4WilsonRadius_h
#define G4WilsonRadius_h 1
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//
// MODULE:              G4WilsonRadus.hh
//
// Version:		B.1
// Date:		15/04/04
// Author:		P R Truscott
// Organisation:	QinetiQ Ltd, UK
// Customer:		ESA/ESTEC, NOORDWIJK
// Contract:		17191/03/NL/LvH
//
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//
// CHANGE HISTORY
// --------------
//
// 6 October 2003, P R Truscott, QinetiQ Ltd, UK
// Created.
//
// 15 March 2004, P R Truscott, QinetiQ Ltd, UK
// Beta release
//
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
//
// Class Description
// Provides functions to calculate the nuclear radius as used in the
// abrasion-ablation model (see Wilson, Tripathi, Cucinotta et al, NASA
// Technical Paper 3533, October 1995), and to determine total nuclear-nuclear
// cross-sections.  The Algorithm comes from Tripathi, Cucinnota and Wilson,
// Nucl Instrum Meth Phys Res B, 152, pp425-431, 1999.
//
// Class Description - End
//
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
////////////////////////////////////////////////////////////////////////////////
//
#include "globals.hh"

////////////////////////////////////////////////////////////////////////////////
//
class G4WilsonRadius
{
  public:
    G4WilsonRadius ();
    ~G4WilsonRadius ();
  
    G4double GetWilsonRMSRadius (G4double A);
    G4double GetWilsonRadius (G4double A);

  private:
    G4double r0sq;
    G4double factor;
    G4double third;
};
////////////////////////////////////////////////////////////////////////////////
//
#endif