fermi-edge-analysis.ipf File Reference

tools for analysing the Fermi edge measured by the Scienta EW4000 analyser. More...

#include "pearl-area-profiles"

Go to the source code of this file.

Functions
variable	analyse_curved_edge (wave data)
variable	record_results (variable index)
variable	integrate_curved_edge (wave data, wave data_sig)
variable	slit_correction (wave data, wave data_out, variable epass)
threadsafe variable	FermiFuncLinDOS2D_corr (variable w, threadsafe x, wave y)
threadsafe variable	slit_shift (variable ypix, variable epass)
variable	show_shift (wave data)
variable	analyser_energy_resolution (variable epass, variable slit)
	calculate the energy resolution of the analyser More...

Variables
static const variable	mcp_radius_pix = 555
	MCP radius seen by the camera in pixels. More...
static const variable	mcp_radius_mm = 20
	physical size (radius) of the MCP in mm More...
static const variable	hemi_radius_mm = 200
	physical size (radius) of the hemisphere in mm More...
static const variable	mcp_radius_epass = 0.04
	energy range imaged on MCP relative to the pass energy More...

Detailed Description

tools for analysing the Fermi edge measured by the Scienta EW4000 analyser.

proposed procedure

• angular normalization
• fit curved fermi function
• calculate corrected energy coordinates and map to single independent variable
• fit normal fermi function

Author

matthias muntwiler, matth.nosp@m.ias..nosp@m.muntw.nosp@m.iler.nosp@m.@psi..nosp@m.ch

thomas dienel

Copyright

2013-15 Paul Scherrer Institut
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0

Definition in file fermi-edge-analysis.ipf.

Function Documentation

variable analyse_curved_edge

(

wave

data

)

Definition at line 27 of file fermi-edge-analysis.ipf.

variable analyser_energy_resolution	(	variable	epass,
		variable	slit
	)

calculate the energy resolution of the analyser

Parameters

epass	pass energy in eV
slit	analyser entrance slit in mm

Returns

energy resolution (FWHM)

Definition at line 306 of file fermi-edge-analysis.ipf.

threadsafe variable FermiFuncLinDOS2D_corr	(	variable	w,
		threadsafe	x,
		wave	y
	)

Definition at line 216 of file fermi-edge-analysis.ipf.

variable integrate_curved_edge	(	wave	data,
		wave	data_sig
	)

Definition at line 116 of file fermi-edge-analysis.ipf.

variable record_results

(

variable

index

)

Definition at line 98 of file fermi-edge-analysis.ipf.

variable show_shift

(

wave

data

)

Definition at line 284 of file fermi-edge-analysis.ipf.

variable slit_correction	(	wave	data,
		wave	data_out,
		variable	epass
	)

Definition at line 173 of file fermi-edge-analysis.ipf.

threadsafe variable slit_shift	(	variable	ypix,
		variable	epass
	)

Definition at line 267 of file fermi-edge-analysis.ipf.

Variable Documentation

const variable hemi_radius_mm = 200

static

physical size (radius) of the hemisphere in mm

Definition at line 263 of file fermi-edge-analysis.ipf.

const variable mcp_radius_epass = 0.04

static

energy range imaged on MCP relative to the pass energy

Definition at line 265 of file fermi-edge-analysis.ipf.

const variable mcp_radius_mm = 20

static

physical size (radius) of the MCP in mm

Definition at line 261 of file fermi-edge-analysis.ipf.

const variable mcp_radius_pix = 555

static

MCP radius seen by the camera in pixels.

Definition at line 259 of file fermi-edge-analysis.ipf.