ion_helium.cpp

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/* This file is part of Cloudy and is copyright (C)1978-2022 by Gary J. Ferland and
 * others.  For conditions of distribution and use see copyright notice in license.txt */
/*IonHelium solve ionization balance for helium */
#include "cddefines.h"
#include "trace.h"
#include "conv.h"
#include "iso.h"
#include "ionbal.h"
#include "dense.h"

void IonHelium( void )
{
        bool lgDebugPrint=false;

        DEBUG_ENTRY( "IonHelium()" );

        /* option to "turn off" helium */
        if( !dense.lgElmtOn[ipHELIUM] )
        {
                dense.xIonDense[ipHELIUM][0] = 0.;
                dense.xIonDense[ipHELIUM][1] = 0.;
                dense.xIonDense[ipHELIUM][2] = 0.;
                return;
        }

        /* populations */
        /* >>chng 01 may 09, add option to set ionization with element name ioniz cmnd */
        if( dense.lgSetIoniz[ipHELIUM] )
        {
                dense.xIonDense[ipHELIUM][2] = dense.SetIoniz[ipHELIUM][2]*dense.gas_phase[ipHELIUM];
                dense.xIonDense[ipHELIUM][1] = dense.SetIoniz[ipHELIUM][1]*dense.gas_phase[ipHELIUM];
                dense.xIonDense[ipHELIUM][0] = dense.SetIoniz[ipHELIUM][0]*dense.gas_phase[ipHELIUM];
        }

        lgDebugPrint = false;
#       if 0
        if( nzone > 197 )
                lgDebugPrint = true;
#       endif

        /* find ionization balance */
        ion_solver( ipHELIUM , lgDebugPrint );

        if( trace.lgHeBug )
        {
                fprintf( ioQQQ, "  %li IonHelium returns;  nzone %ld He0:%.4e He+:%.4e He+2:%.4e\n",
                        conv.nTotalIoniz ,
                        nzone,
                        dense.xIonDense[ipHELIUM][0]/dense.gas_phase[ipHELIUM] ,
                        dense.xIonDense[ipHELIUM][1]/dense.gas_phase[ipHELIUM] ,
                        dense.xIonDense[ipHELIUM][2]/dense.gas_phase[ipHELIUM] );

                fprintf( ioQQQ, "     He+ /He0:%s smp:%.4e rec:%.4e ion:%.4e rad rec:%.4e 1s Pop:%.4e\n",
                        iso_sp[ipHE_LIKE][ipHELIUM].chTypeAtomUsed,
                        iso_sp[ipHE_LIKE][ipHELIUM].xIonSimple,
                        ionbal.RateRecomTot[ipHELIUM][0],
                        ionbal.RateIonizTot(ipHELIUM,0),
                        ionbal.RR_rate_coef_used[ipHELIUM][0],
                        iso_sp[ipHE_LIKE][ipHELIUM].st[0].Pop() );

                fprintf( ioQQQ, "     He+2/He+:%s smp:%.4e rec:%.4e ion:%.4e rad rec:%.4e\n",
                        iso_sp[ipH_LIKE][ipHELIUM].chTypeAtomUsed,
                        iso_sp[ipH_LIKE][ipHELIUM].xIonSimple ,
                        ionbal.RateRecomTot[ipHELIUM][1],
                        ionbal.RateIonizTot(ipHELIUM,1),
                        ionbal.RR_rate_coef_used[ipHELIUM][1] );

                fprintf( ioQQQ, "\n" );
        }
        return;
}