Table 1.

Decay times of the luminescence at the main Gd³⁺-ion RIL at 314 nm under irradiation with electrons at a normal incidence angle. Fitted decay time values, transient RIA time constant, and RIA strength after the electron bunch are listed. The presented values are the average of the fitted ones at different depths of acrylic, with the estimated standard deviation in parentheses.

Electron Energy (MeV)	RIL Decay Time ${\mathit{\tau }}_1$ (μs)	Transient RIA Decay Time ${\mathit{\tau }}_2$ (μs)	Initial RIA Strength (dB/m)
6	1257 (43)	22 (4)	4.3 (2.1)
12	1267 (44)	28 (5)	7.2 (2.7)
20	1257 (44)	22 (9)	5.3 (2.4)