----- file created by makedoc on: Wed Apr  9 11:11:21 2003

----- Documentation for ./nmirror.pro -----

 =================================  nMirror      ============================

 nMirror is a widget based graphical interface to calculate Neutron
 Scattering Factors, and their derived parameters
 (refraction index, absorption cross section, reflectivity).

 The data are taken from the DABAX data base.

 Possible calculations:

	Real(b) [fm]   =  real part of the bound coherent scattering length
	Imag(b) [fm]   =  imaginary part of the bound coh. sca. length
	Scat. cross sec. [barns] = Scattering cross section (coherent+incoh)
	Incoh. cross sec. [barns] = Incoherent scattering cross section
	Coh. cross sec. [barns] = Coherent scattering cross section
	Absorption. cross sec. [barns] = Absorption Cross Section
	delta =  delta [n=1-delta-i beta]
	beta  =  beta [n=1-delta-i beta]
	mu [cm^-1]   =  Nuclear absorption coeff (mu [cm^-1)]
	mu [cm^2/g]  =  Mass  absorption coeff (mu [cm^2/g)
	Reflectivity =  Mirror reflectivity


 WARNING: These calculations can be made for unpolarized or polarized
 (Up(+1/2) and Down(-1/2)) neutrons (in the case that polarized
 data are available in the selected database, otherwise the 
 unpolarised data is selected WITHOUT ANY WARNING!!). 


 Nota: when chosing delta or beta (i.e., refraction index), the
   program ask is the user wants to create a file fith the refraction index
   for further use with IMD [multilayers].

 DESCRIPTION OF THE CONTROLS IN THE MAIN WINDOW:

  File:
    nMirror input parameters: This option allows to save the current
		parameters to a file for later loading. It also allows
		to save the current parameters as defaults for being
		used when the application is initialized. In the last
		case, the file is named "application".xop (where
		"application " is the name of the current NOP
		application) and is written in the directory pointed
		by the XOP_DEFAULTS_DIR environment variable (which
		must be set). The parameter file is ASCII and can be
		read and edited with care.
  Quit: to exit from the program

 Set_Parameters:
  Set Parameters: to define the parameters for the calculation.
		The same result is obtained pressing the "Set Parameters"
		button in the main nMirror window.
               Please refer to the information under the HELP
		button for a complete description of the parameters. After
		pressing the ACCEPT button, nMirror start running and
		presents a graphic display with results.
  Set Defaults: Sets the default parameters.

  Help:   Shows the nMirror help (this text).


 COPYRIGHT:
	nMirror  belongs to XOP/NOP package and it is distributed within NOP.
	PLEASE REFER TO THE XOP/NOP COPYRIGHT NOTICE BEFORE USING IT.

 CREDITS:
	Published calculations made with XOP/NOP should refer:

	  L. Alianelli, M. Sanchez del Rio and R. Felici
	  "NOP: A new software tool for neutron optics"
	  To be published in Physica B at the proceedings of the 
	  ECNS 2003 conference.


	  M. Sanchez del Rio and R. J. Dejus "XOP: Recent Developments"
	  SPIE proceedings vol. 3448, pp.340-345, 1998.
	  

 LAST MODIFICATION: srio@esrf.fr 2003-04-07



