Table 4: Best fit values of angular distribution width parameter $\Delta \Theta$ for DW flares and of $\alpha$ /p for DW and PAS( $\lambda =30$ ) flares for combined fits of the ¹²C and ¹⁶O lines. Spectral index of accelerated particles s=4.0; values in parenthesis are for s=3.0. The values of $\alpha$ /p and $\Delta \Theta$ for s=3.5 are generally between those of s=3.0 and s=4.0.
flare geometry DW PAS

$\alpha$ /p $\Delta \Theta$ $\chi ^2$ $\alpha$ /p $\chi ^2$

phase B 0.11 (0.19) 35 $^{\circ }$ (30 $^{\circ})$ 48.5 (48.8) 0.18 (0.35) 49.9 (52.1)

phase C
0.06 (0.00) 40 $^{\circ }$ (40 $^{\circ }$ ) 25.1 (26.8) 0.10 (0.03) 26.0 (27.2)

phase B-C
0.07 (0.11) 40 $^{\circ }$ (35 $^{\circ }$ ) 27.8 (28.7) 0.11 (0.19) 29.9 (31.3)

**Table 4:** Best fit values of angular distribution width parameter $\Delta \Theta$ for DW flares and of $\alpha$ /p for DW and PAS( $\lambda =30$ ) flares for combined fits of the ¹²C and ¹⁶O lines. Spectral index of accelerated particles s=4.0; values in parenthesis are for s=3.0. The values of $\alpha$ /p and $\Delta \Theta$ for s=3.5 are generally between those of s=3.0 and s=4.0.
flare geometry	DW	PAS
	$\alpha$ /p	$\Delta \Theta$	$\chi ^2$	$\alpha$ /p	$\chi ^2$
phase B	0.11 (0.19)	35 $^{\circ }$ (30 $^{\circ})$	48.5 (48.8)	0.18 (0.35)	49.9 (52.1)
phase C	0.06 (0.00)	40 $^{\circ }$ (40 $^{\circ }$ )	25.1 (26.8)	0.10 (0.03)	26.0 (27.2)
phase B-C	0.07 (0.11)	40 $^{\circ }$ (35 $^{\circ }$ )	27.8 (28.7)	0.11 (0.19)	29.9 (31.3)

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