/* phycon.h */
EXTERN struct t_phycon {

	/*te, electron temperature
	 *note, this is used in zero to check whether 32 bit environment in use,
	 *if ever declared double will need to change that test, setting lgBit32*/
	float te;

	  /* electron density */
	double eden, 

	  /* hydrogen density */
	  hden;

	/* ratio of electron to nuclei density, could be >1 because of he, set in esum */
	float ElecFrac;

	/*total number of colliders (atoms, ions, molecules) in gas, no electrons */
	double CollidDensity;

	}	phycon;