Modeling and Assessment of Long Afterglow Decay Curves

Table 3

Calculated constants for the DIN luminescence standard for different grades from A to G, where the luminous intensity increases as the grade number goes from A to G. A double exponential equation was used for interpretation.

Terms			(min)	(min)
A	0.1587	0.0162	3.7138	34.8572
B	0.2934	0.0314	4.0907	39.0857
C	1.0415	0.1004	3.5680	36.8189
D	1.5453	0.2046	3.7503	33.6278
E	2.5939	0.2570	3.9084	38.4057
F	3.2869	0.3366	3.9448	37.8302
G	4.3611	0.4439	3.8110	34.8920