;+
; NAME:
;	thomson_common
; PURPOSE:
;	Contains common block definition used by
;	Thomson scattering functions
; CATEGORY:
;	Physics: Thomson scattering
; CALLING SEQUENCE:
;	@thomson_common.pro
; PROCEDURE:
; MODIFICATION HISTORY:
;	JULY-2001, Paul Hick (UCSD/CASS; pphick@ucsd.edu)
;-
common ThomsonLOSDensity_Save, Pos_, Dir_, density