Simple determination of 99Tc in radioactive waste using Tc extraction disk and imaging plates

Radiochemical analysis of rubble and trees collected from Fukushima Daiichi Nuclear Power Station

“…Beta-particle-emitting nuclides 90 Sr and 3 H and alpha-particle-emitting nuclides 238 Pu, 239 Pu, 241 Am, and 244 Cm were analyzed using the conventional method described in previous reports [9][10][11][12][13][14][15][16]. For the gamma-ray-emitting nuclides 60 Co, 94 Nb, 152 Eu, and 154 Eu and beta-particle-emitting nuclides 14 C, 129 I, 36 Cl, 79 Se, and 99 Tc, the procedure was modified from the conventional method.…”

“…The Re in the Tc-eluted solution was measured using inductively coupled plasma atomic emission spectroscopy (Shimadzu Co., ICPS-7510) to determine the chemical yield of Tc. Because there is no stable Tc isotope, the recovery was determined using Re, which behaves in the same manner as Tc [15]. After the Tc-eluted solution was made an addition to Aquasol-2 (PerkinElmer, Inc.), 99 Tc was measured using a liquid scintillation counter (LSC, PerkinElmer, Inc., TriCarb 2910LL).…”

“…Technetium-99 was retained on the resin, and 79 Se was eluted. After the resin was washed with 30 ml of 2 M HNO 3 , Tc was eluted from the resin with 15 ml of 8 M HNO 3 and separated from the other radionuclides [15]. The Re in the Tc-eluted solution was measured using inductively coupled plasma atomic emission spectroscopy (Shimadzu Co., ICPS-7510) to determine the chemical yield of Tc.…”

A quantitative method study on pertechnetate in aqueous solution using Raman spectroscopy

“…Tc is a pure b À emitter, which can be measured by radiation counting. There are several analytical methods for Tc determination with extremely low limits of detection, like inductively coupled plasma mass spectrometry (ICP-MS), [1][2][3][4][5][6] radiochemical analysis methods, 7,8 total reection X-ray uorescence, 9 and so on. K. L. Shi et al 10 reviewed the studies on the determination of 99 Tc in environmental samples.…”

Systematic Analysis Method for Radioactive Wastes Generated from Nuclear Research Facilities

“…( 3 H,14 C, 36 Cl, 41 Ca, 60 Co, 59,63 Ni, 90 Sr, 94 Nb, 99 Tc, 108m Ag, 129 I, 133 Ba, 137 Cs, 152,154 Eu, 166m Ho, 234,235,238 U, 238,239,240,242 Pu, 241,243 Am, 242,244 Cm)とし 非破壊 g 線測定法( 94 Nb, 108m Ag, 133 Ba, 152,154 Eu,…”