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====== l ======
**[//lam// [//ymin_on_ymax// #] [//no_th_dependence//] [Lam !E] [calculate_Lam]]**
**[//la// E //lo// E [//lh// E] | [//lg// E]]...**
Defines an emission profile where each "[//la// E //lo// E [//lh// E] | [//lg// E] ]" determines an emission profile line, where
//la//: Area under the emission profile line
//lo//: Wavelength in [Å] of the emission profile line
//lh//: HW in mÅ of a Lorentzian convoluted into the emission profile line.
//lg//: HW in mÅ of a Gaussian convoluted into the emission profile line.
//ymin_on_ymax// determines the x-axis extent to which an emission profile line is calculated. It is set to 0.001 by default.
//no_th_dependence// defines an emission profile that is 2q independent. Allows the use of non-X-ray data or fitting to negative 2q values.
//Lam// defines the value to be used for the reserved parameter Lam. When //Lam// is not defined then the reserved parameter Lam is defined as the wavelength of the emission profile line with the largest //la// values. Note that //Lam// is used to determine the Bragg angle.
//calculate_Lam// calculates //Lam// such that it corresponds to the wavelength at the peak of the emission profile. //Lam// needs to be set to an approximate value corresponding to the peak of the emission profile.
See section 6 for a description of emission profiles.
**[//lebail// #]**
A 1 for the //lebail// keyword flags the use of the Le Bail method for peak intensity extraction.
**[//line_min//] [//use_extrapolation//] [//no_normal_equations//] [//use_LU//]**
//no_normal_equations// prevents the use of normal equations in the minimization routine; it is useful when the effects of line minimization only is sought or when there are a large number of parameters being refined. Refer to section 5 for a description of the minimization routines .
**[//lor_fwhm// E]...**
Defines the FWHM of a Lorentzian function that is convoluted into phase peaks. //lor_fwhm// is used for example by the CS_L and Strain_L macros.
**[//lpsd_th2_angular_range_degrees// E]...**
**//lpsd_equitorial_divergence_degrees//** **E**
**//lpsd_equitorial_sample_length_mm//** **E**
Calculates an aberration for a Linear Position Sensitive Detector and convolutes it into phase peaks. //lpsd_th2_angular_range_degrees// corresponds to the angular range of the LPSD in 2Th degrees. //lpsd_equitorial_divergence_degrees the equitorial divergence in degrees of the primary beam// and//lpsd_equitorial_sample_length_mm// is the lengths of the sample in the equitorial plane.
The //lpsd_th2_angular_range_degrees// convolution corrests for peak shapes, intensities and 2Th shifts; see example LPSD-SIMULATED.INP.