Title :
Pulsed X-ray induced transient absorption in LiNbO3, TiO 2:LiNbO2, and MgO:LiNbO3 at 1061 nm
Author_Institution :
Laser, Opt. & Remote Sensing Dept., Sandia Nat. Labs., Albuquerque, NM, USA
fDate :
6/1/1995 12:00:00 AM
Abstract :
Characteristics of pulsed X-ray induced transient absorption at 1061 mm have been determined for LiNbO3, TiO2:LiNbO3, and MgO:LiNbO3. The addition of the dopants TiO2 and MgO reduces the induced absorption significantly. The two materials, LiNbO3 and TiO 2:LiNbO3, decay with an approximate 1/t1/4 time dependence for the time interval 0.01 to 8 ms. After 8 ms, the decay rate for LiNbO3 is faster than 1/t1/4, and the decay rate for TiO2:LiNbO3 is slower than that initial rate. A low-intensity absorption which lasts for about 20 μs is observed for the MgO:LiNbO3. Peak radiation induced absorption coefficients for LiNbO3, TiO2:LiNbO3, and MgO:LiNbO3 have been determined
Keywords :
X-ray absorption; absorption coefficients; fission reactor materials; lithium compounds; magnesium compounds; titanium compounds; 0.01 to 8 ms; 1061 nm; 20 mus; LiNbO2:TiO2; LiNbO3; LiNbO3:MgO; decay rate; dopants; low-intensity absorption; peak radiation induced absorption coefficients; pulsed X-ray induced transient absorption; time interval; Electromagnetic wave absorption; Inductors; Laboratories; Lithium niobate; Optical materials; Optical pulses; Optical sensors; Optical waveguides; Pulse modulation; X-ray lasers;
Journal_Title :
Nuclear Science, IEEE Transactions on
