diff --git a/source/trunk/Model/XS/XSM_CLOSEST.hxx b/source/trunk/Model/XS/XSM_CLOSEST.hxx
index 699c69cdfa12b79179797ef3970d7efeed254eb2..65d1204657160bce7e917f09695fc00bc99fdfcb 100644
--- a/source/trunk/Model/XS/XSM_CLOSEST.hxx
+++ b/source/trunk/Model/XS/XSM_CLOSEST.hxx
@@ -23,9 +23,17 @@ using namespace std;
 //-----------------------------------------------------------------------------//
 /*!
  Define a XSM_CLOSEST.
- CLASS to get cross sections from a set of pre-calculation
- (with MURE,or other depletion code)
- get cross sections of the closest (in composition) calculation
+ Class to get cross sections from a set of pre-calculation
+ (with MURE,or other depletion code).
+With this class, cross sections needed to solves Bateman equation come from an
+ already performed depletion calculation contained in a set of many depletion calculations. 
+ The way to pick up these or these depletion calculation is related to a distance :
+ The depletion calculation (or EvolutionData) the closest from the new fresh fuel composition
+ is selected. Different distances are defined : 
+ 
+ \li Standard euclidean distance (weights : 1) IS THE DEFAULT
+ \li Euclidean distance with weights assigned according mean cross section values
+ \li Euclidean distance with weights assigned by user
 
  @authors BaM,BLG
  @version 1.0
@@ -42,10 +50,32 @@ class XSM_CLOSEST : public XSModel
 	 \name Constructor/Desctructor
 	 */
 	//@{
+	
+	//{
+	///  normal constructor
+	//
+	/*!
+	 Make a new XSM_CLOSEST
+	 \param DB_index_file : File listing the path of all depletion calculations (in EvolutionData format (.dat file) )
+	 \param oldreadmethod :
+	 */
 	XSM_CLOSEST(string DB_index_file, bool oldreadmethod = false );
+	//}
+	
+	//{
+	///  Logger constructor
+	//
+	/*!
+	 Make a new XSM_CLOSEST
+	 \param log : Use for the log
+	 \param DB_index_file : File listing the path of all depletion calculations (in EvolutionData format (.dat file) )
+	 \param oldreadmethod :
+	 */
 	XSM_CLOSEST(CLASSLogger* Log, string DB_index_file, bool oldreadmethod = false );
+	//}
+	
 	~XSM_CLOSEST();
-	//{
+	//@}
 
 
 	//********* Get Method *********//
@@ -53,15 +83,15 @@ class XSM_CLOSEST : public XSModel
 	 \name Get Method
 	 */
 	//@{
- 	virtual EvolutionData GetCrossSections(IsotopicVector isotopicvector,double t=0) ; //!< Reason to live of this CLASS Return the closest Evolutiondata
+ 	virtual EvolutionData GetCrossSections(IsotopicVector isotopicvector,double t=0) ;	//!< Reason to live of this CLASS : Return the closest Evolutiondata
 	vector< EvolutionData >	GetFuelDataBank()	const	{ return fFuelDataBank; }	//!< Return the FuelDataBank
 	string 			GetDataBaseIndex()	const	{ return fDataBaseIndex; }	//!< Return the index Name
 	string			GetFuelType()		const	{ return fFuelType; }		//!< Return the fuel type of the DB
-	vector<double>		GetFuelParameter()	const	{ return fFuelParameter; }	//!< Return the Fuel parameter of the DB
-	pair<double,double>	GetBurnUpRange()	const	{ return fBurnUpRange;}		//!< Return the BurnUp range of the DB
-	bool 			IsDefine(IsotopicVector IV)	const;					//!< True the key is define, false unstead
+	vector<double>		GetFuelParameter()	const	{ return fFuelParameter; }	//!< Return the Fuel parameters of the DB
+	pair<double,double>	GetBurnUpRange()	const	{ return fBurnUpRange;}		//!< Return the Burnup range of the DB
+	bool 			IsDefine(IsotopicVector IV)	const;				//!< True if the key is define, false instead
 
-	map<double, int>	GetDistancesTo(IsotopicVector isotopicvector, double t = 0);	//! Return a map containing the distance of each EvolutionData in the DataBase to the set IV at the t time
+	map<double, int>	GetDistancesTo(IsotopicVector isotopicvector, double t = 0);	//! Return a map containing the distance of each EvolutionData in the DataBase to the set IV at the time t
 	//@}
 
 	//********* Set Method *********//
@@ -74,19 +104,19 @@ class XSM_CLOSEST : public XSModel
 	void SetFuelDataBank(vector< EvolutionData > mymap)	{ fFuelDataBank = mymap; }	//!< Set the FuelDataBank map
 
 	void SetDataBaseIndex(string database)	{ fDataBaseIndex = database;; ReadDataBase(); }	//!< Set the Name of the database index
-	void SetOldReadMethod(bool val)		{ fOldReadMethod = val; ReadDataBase();}			///< use the old reading method
-
+	void SetOldReadMethod(bool val)		{ fOldReadMethod = val; ReadDataBase();}	//!< use the old reading method
 
 
-	void SetWeightedDistanceCalculation(bool val = true) { fWeightedDistance = val;}		///< Set weighted Distance calculation
-	void SetInventoryEvolutionInterpolation(bool val = true) { fEvolutionDataInterpolation = val;}		///< Set weighted Distance calculation
-	void SetDistanceParameter(IsotopicVector DistanceParameter);		///< Define mannually the weight for each ZAI in the distance calculation
 
+	void SetWeightedDistanceCalculation(bool val = true) { fWeightedDistance = val;}		//!< Set weighted distance calculation
+	void SetInventoryEvolutionInterpolation(bool val = true) { fEvolutionDataInterpolation = val;}	//!< \deprecated The 64 closest EvolutionData (ED) are used to build a new ED. The cross section from each ED are weighted according to their distance
+	void SetDistanceParameter(IsotopicVector DistanceParameter);					//!< Define mannually the weight for each ZAI in the distance calculation
+	//@}
 
 	//{
-	/// Define the way to decide if two isotopic vectors are close.
+	/// Choose the way to calculate the distance between two isotopic vectors.
 	/*!
-	 // The different algorythm are:
+	 // The different algorythms are:
 	 // \li 0 is for the standard norme,
 	 // \li 1 for each ZAI weighted with its XS,
 	 // \li 2 for each ZAI weighted with coefficient given by the user.
@@ -99,34 +129,34 @@ class XSM_CLOSEST : public XSModel
 	 \name Other Method
 	 */
 	//@{
-	void	ReadDataBase();				///< read the index file and fill the evolutionData map
-	void	CalculateDistanceParameter();		///< Calcul of the weight for each ZAI in the distance calculation from the mean XS of the FuelDataBank
+	void	ReadDataBase();				//!< read the index file and fill the evolutionData map
+	void	CalculateDistanceParameter();		//!< Calcul of the weight for each ZAI in the distance calculation from the mean XS of the FuelDataBank
 
 	//@}
 
 	private :
 
-	vector< EvolutionData > fFuelDataBank;			///< DataBanck map
+	vector< EvolutionData > fFuelDataBank;			//!< DataBank map
 
- 	string			fDataBaseIndex;			///< Name of the index
+ 	string			fDataBaseIndex;			//!< Name of the index
 
-	bool			fOldReadMethod;		///< use old DB format
-	bool			fWeightedDistance;	///< USe XS weighted distance calculation
-	bool			fEvolutionDataInterpolation;	///< USe XS weighted distance calculation
+	bool			fOldReadMethod;			//!< use old DB format
+	bool			fWeightedDistance;		//!< USe XS weighted distance calculation
+	bool			fEvolutionDataInterpolation;	//!< USe XS weighted distance calculation
 
 
- 	string 				fFuelType;		///< Type of fuel of the FuelDataBank
- 	pair<double,double>	fBurnUpRange;		///< Range of the Burn-up range of the FuelDataBank
- 	vector<double>		fFuelParameter;		///< Parameter needed by the equivalence model
+ 	string 				fFuelType;	//!< Type of fuel of the FuelDataBank
+ 	pair<double,double>	fBurnUpRange;		//!< Range of the Burn-up range of the FuelDataBank
+ 	vector<double>		fFuelParameter;		//!< Parameter needed by the equivalence model
 
 
 
-	int 	fDistanceType;		///< Set the distance calculation algorytm
+	int 	fDistanceType;		//!< Set the distance calculation algorythm
 	/// \li 0 is for the standard norm (Default = 0),
 	/// \li 1 for each ZAI weighted with its XS,
 	/// \li 2 for each ZAI weighted with coefficient given by the user.
 
-	IsotopicVector		fDistanceParameter;	///< weight for each ZAI in the distance calculation
+	IsotopicVector		fDistanceParameter;	//!< weight for each ZAI in the distance calculation
 	
 };
 
diff --git a/source/trunk/Model/XS/XSM_MLP.hxx b/source/trunk/Model/XS/XSM_MLP.hxx
index 1c16e02f55f15e1d9ed24c74f01fc1fd6f01789f..03317a99ad8d31d4efe19a622f9488752185a393 100644
--- a/source/trunk/Model/XS/XSM_MLP.hxx
+++ b/source/trunk/Model/XS/XSM_MLP.hxx
@@ -24,7 +24,8 @@ using namespace std;
 //-----------------------------------------------------------------------------//
 /*!
  Define a XSM_MLP.
- This is the class to predict cross sections with a set of MultiLayerPerceptrons
+ This is the class to predict cross sections with a 
+ set of Multi Layer Perceptrons (MLP)
 
  @authors BLG
  @version 1.0
@@ -73,14 +74,14 @@ class XSM_MLP : public XSModel
 
 	private :
 	
-	void GetDataBaseInformation();		//<! Read information file and fill Reactor Type, Fuel type, HM mass, Power, time vector, and TMVA input variables names
+	void GetDataBaseInformation();				//!< Read information file and fill Reactor Type, Fuel type, HM mass, Power, time vector, and TMVA input variables names
 
- 	void GetMLPWeightFiles();				//<! Find all .xml file in TMVA_Weight_Directory
+ 	void GetMLPWeightFiles();				//!< Find all .xml file in TMVA_Weight_Directory
 	EvolutionData GetCrossSectionsStep(IsotopicVector IV);	//!< Return calculated cross section by the MLP regression when fIsTimeStep==true
 	EvolutionData GetCrossSectionsTime(IsotopicVector IV);	//!< Return calculated cross section by the MLP regression when fIsTimeStep==false
 	
-	void ReadWeightFile(string Filename, int &Z, int &A, int &I, int &Reaction) ;	//<! Select the reaction according to the weight file name
-	void ReadWeightFileStep(string Filename, int &Z, int &A, int &I, int &Reaction, int &TimeStep);; 	//<! Select the reaction according to the weight file name
+	void ReadWeightFile(string Filename, int &Z, int &A, int &I, int &Reaction) ;				//!<  Select the reaction according to the weight file name
+	void ReadWeightFileStep(string Filename, int &Z, int &A, int &I, int &Reaction, int &TimeStep);; 	//!<  Select the reaction according to the weight file name
 
 
 
@@ -88,20 +89,20 @@ class XSM_MLP : public XSModel
 	TTree* CreateTMVAInputTree(IsotopicVector isotopicvector,int TimeStep=0);	//!<Create input tmva tree to be read by ExecuteTMVA
 
 
- 	vector<double> 	fMLP_Time;	//<! Time vector of the data base
- 	vector<string> 	fWeightFiles;	//<! All the weight file contains in fTMVAWeightFolder
+ 	vector<double> 	fMLP_Time;	//!<  Time vector of the data base
+ 	vector<string> 	fWeightFiles;	//!<  All the weight file contains in fTMVAWeightFolder
 	
-	string fTMVAWeightFolder;	//<! folder containing all the weight file
- 	string fMLPInformationFile;	//<! file containing Reactor Type, Fuel type, HM mass, Power, time vector, and TMVA input variables names (looks the manual for format details)
+	string fTMVAWeightFolder;	//!<  folder containing all the weight file
+ 	string fMLPInformationFile;	//!<  file containing Reactor Type, Fuel type, HM mass, Power, time vector, and TMVA input variables names (looks the manual for format details)
 	
-	double fDataBasePower;		//<!Power of the data base (read from fMLPInformationFile )
- 	double fDataBaseHMMass;		//<!Heavy metal mass of the data base (read from fMLPInformationFile )
- 	string fDataBaseFType;		//<! Reactor Type (e.g PWR, FBR-Na, ADS..)
- 	string fDataBaseRType;		//<! Fuel Type    (e.g MOX, UOX, ThU, ThPu ...)
+	double fDataBasePower;		//!<  Power of the data base (read from fMLPInformationFile )
+ 	double fDataBaseHMMass;		//!<  Heavy metal mass of the data base (read from fMLPInformationFile )
+ 	string fDataBaseFType;		//!<  Reactor Type (e.g PWR, FBR-Na, ADS..)
+ 	string fDataBaseRType;		//!<  Fuel Type    (e.g MOX, UOX, ThU, ThPu ...)
 	
- 	bool fIsStepTime;		//<!true if one TMVA weihgt per step time is requiered otherwise it assumes time is part of the MLP inputs
+ 	bool fIsStepTime;		//!<  true if one TMVA weihgt per step time is requiered otherwise it assumes time is part of the MLP inputs
 
- 	map<ZAI,string> fMapOfTMVAVariableNames;//<! List of TMVA input variable names (read from fMLPInformationFile ) , name depends on the training step
+ 	map<ZAI,string> fMapOfTMVAVariableNames;//!<  List of TMVA input variable names (read from fMLPInformationFile ) , name depends on the training step
 	
 	
 };