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ADAS Subroutine cdaval

        SUBROUTINE CDAVAL(IUNIT,DSNAME,UN,UL,LN,LL,MULTI,AVALUE)      
C-----------------------------------------------------------------------
C
C  	*********   FORTRAN77 SUBROUTINE: CDAVAL *********
C
C  	PURPOSE:  EXTRACTS A-VALUE FROM AN ADF04 TYPE FILE GIVEN
C		  THE QUANTUM NUMBERS DESCRIBING THE INITIAL AND
C		  FINAL CONFIGURATION.
C
C  	CALLING PROGRAM:  ADAS313
C
C	INPUT  :
C
C		(I*4)	UN		: UPPER PRINCIPAL QUANTUM
C					  NUMBER.
C		(I*4)	UL		: UPPER TOTAL L QUANTUM
C					  NUMBER.
C		(I*4)	LN		: LOWER PRINCIPAL QUANTUM
C					  NUMBER.
C		(I*4)	LL		: LOWER TOTAL L QUANTUM
C					  NUMBER.
C		(I*4)	MULTI		: MULTIPLICITY.
C		(I*4)	IUNIT		: STREAM NUMBER FOR ADF04
C					  TYPE FILE.
C		(CHR)	DSNAME		: ADF04 FILENAME INCLUDING
C					  THE PATH.
C		
C	OUPUT :
C		(R*8)	AVALUE		: TRANSITION PROBABILITY.
C
C
C	GENERAL :
C		
C		(I*4)	IA()		: INDEX ARRAY.
C		(I*4)	NB()		: PRINCIPAL QUANTUM NUMBER.
C		(I*4)	NA()		: PRINCIPAL QUANTUM NUMBER.
C		(I*4)	MULTA()		: MULTIPLICITY.
C		(I*4)	LTA()		: TOTAL L QUANTUM NUMBER.
C		(I*4)	I		: GENERAL COUNTER.
C		(I*4)	J		: GENERAL COUNTER.
C		(I*4)	NDLEVELS	: NUMBER OF LEVELS CONTAINED
C					  IN THE ADF04 FILE.
C		(I*4)	UREF		: INDEX REFERENCING THE UPPER
C					  LEVEL.
C		(I*4)	LREF		: INDEX REFERENCING THE LOWER
C					  LEVEL.
C		(I*4)	UINDX		: INDEX OF THE UPPER LEVEL
C					  CONTAINED IN THE ADF04 TYPE
C					  FILE.
C		(I*4)	LINDX		: INDEX OF THE LOWER LEVEL
C					  CONTAINED IN THE ADF04 TYPE
C					  FILE.
C
C
C 	CONTACT : HARVEY ANDERSON
C	    	  UNIVERSITY OF STRATHCLYDE
C	          ANDERSON@PHYS.STRATH.AC.UK
C
C 	DATE    : 04/29/98
C
C VERSION: 1.1						DATE: 16-03-99
C MODIFIED: RICHARD MARTIN
C		- PUT UNDER SCCS CONTROL.
C
C VERSION: 1.2						DATE: 15-10-99
C MODIFIED: RICHARD MARTIN
C		REMOVED SUPERFLUOUS WRITE STATEMAENT.
C
C-----------------------------------------------------------------------
C
      CHARACTER*80        DSNAME
      INTEGER             IUNIT,       LL,          LN,          MULTI
      INTEGER             UL,          UN
      REAL*8              AVALUE
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