German Spent Nuclear Fuel Legacy: Characteristics and High-Level Waste Management Issues

Table 2

Selected isotopic inventories (tonnes) in 2022 of German SNF and HLW.

Nuclide	PWRUOX	PWRMOX	BWRUOX	BWRMOX	Total SNF	HLW
U-233	2.14𝐸−05	1.71𝐸−06	1.24𝐸−05	2.73𝐸−07	𝟑.𝟓𝟗𝐄−𝟎𝟓	2.17𝐸−05
U-234	1.56𝐸−01	1.43𝐸−01	1.18𝐸−01	3.27𝐸−02	𝟒.𝟓𝟎𝐄−𝟎𝟏	3.79𝐸−04
U-235	4.84𝐸+01	1.89𝐸+00	3.30𝐸+01	8.10𝐸−01	𝟖.𝟒𝟏𝐄+𝟎𝟏	5.27𝐸−03
U-236	2.77𝐸+01	3.72𝐸−01	1.38𝐸+01	1.83𝐸−01	𝟒.𝟐𝟏𝐄+𝟎𝟏	2.42𝐸−03
U-237	3.13𝐸−07	7.30𝐸−08	7.20𝐸−08	2.11𝐸−08	𝟒.𝟕𝟗𝐄−𝟎𝟕	1.24𝐸−10
U-238	5.38𝐸+03	7.12𝐸+02	3.26𝐸+03	2.32𝐸+02	𝟗.𝟓𝟖𝐄+𝟎𝟑	6.61𝐸−01
Pu-238	1.34𝐸+00	7.40𝐸−01	7.73𝐸−01	1.99𝐸−01	𝟑.𝟎𝟓𝐄+𝟎𝟎	2.19𝐸−03
Pu-239	3.17𝐸+01	1.64𝐸+01	1.98𝐸+01	3.03𝐸+00	𝟕.𝟏𝟎𝐄+𝟎𝟏	7.68𝐸−02
Pu-240	1.43𝐸+01	1.16𝐸+01	7.62𝐸+00	3.15𝐸+00	𝟑.𝟔𝟔𝐄+𝟎𝟏	1.09𝐸−01
Pu-241	4.64𝐸+00	2.31𝐸+00	2.28𝐸+00	6.67𝐸−01	𝟗.𝟗𝟏𝐄+𝟎𝟎	3.95𝐸−03
Pu-242	3.72𝐸+00	3.43𝐸+00	1.90𝐸+00	1.07𝐸+00	𝟏.𝟎𝟏𝐄+𝟎𝟏	6.39𝐸−03
Pu-244	3.05𝐸−04	4.04𝐸−04	1.65𝐸−04	1.18𝐸−04	𝟗.𝟗𝟐𝐄−𝟎𝟒	3.57𝐸−07
Th-229	1.62𝐸−09	2.13𝐸−10	1.28𝐸−09	1.13𝐸−11	𝟑.𝟏𝟐𝐄−𝟎𝟗	1.42𝐸−09
Th-230	3.69𝐸−06	4.95𝐸−06	3.42𝐸−06	9.24𝐸−07	𝟏.𝟑𝟎𝐄−𝟎𝟓	9.78𝐸−07
Th-232	1.18𝐸−05	2.44𝐸−07	7.68𝐸−06	9.81𝐸−08	𝟏.𝟗𝟖𝐄−𝟎𝟓	6.23𝐸−06
Pa-231	6.68𝐸−07	6.27𝐸−08	5.83𝐸−07	1.92𝐸−08	𝟏.𝟑𝟑𝐄−𝟎𝟔	5.39𝐸−07
Pa-233	1.31𝐸−07	8.02𝐸−09	7.01𝐸−08	1.71𝐸−09	𝟐.𝟏𝟏𝐄−𝟎𝟕	9.91𝐸−08
Np-237	3.86𝐸+00	2.37𝐸−01	2.07𝐸+00	5.06𝐸−02	𝟔.𝟐𝟏𝐄+𝟎𝟎	2.92𝐸+00
Np-238	1.00𝐸−09	1.75𝐸−09	1.75𝐸−09	2.74𝐸−10	𝟒.𝟕𝟕𝐄−𝟎𝟗	1.39𝐸−09
Np-239	7.87𝐸−07	5.77𝐸−07	4.41𝐸−07	2.11𝐸−07	𝟐.𝟎𝟐𝐄−𝟎𝟔	5.49𝐸−07
Am-241	3.98𝐸+00	4.30𝐸+00	3.01𝐸+00	9.41𝐸−01	𝟏.𝟐𝟐𝐄+𝟎𝟏	3.03𝐸+00
Am-242	6.94𝐸−08	1.21𝐸−07	1.21𝐸−07	1.90𝐸−08	𝟑.𝟑𝟎𝐄−𝟎𝟕	9.59𝐸−08
Am-242m	5.80𝐸−03	1.01𝐸−02	1.01𝐸−02	1.59𝐸−03	𝟐.𝟕𝟕𝐄−𝟎𝟐	8.02𝐸−03
Am-243	9.14𝐸−01	6.71𝐸−01	5.13𝐸−01	2.46𝐸−01	𝟐.𝟑𝟒𝐄+𝟎𝟎	6.38𝐸−01
Cm-242	1.11𝐸−03	2.48𝐸−05	2.48𝐸−05	3.85𝐸−06	𝟏.𝟏𝟔𝐄−𝟎𝟑	1.95𝐸−05
Cm-243	2.72𝐸−03	2.32𝐸−03	1.64𝐸−03	6.55𝐸−04	𝟕.𝟑𝟒𝐄−𝟎𝟑	1.35𝐸−03
Cm-244	2.22𝐸−01	1.76𝐸−01	1.19𝐸−01	5.59𝐸−02	𝟓.𝟕𝟐𝐄−𝟎𝟏	6.05𝐸−02
Cm-245	1.67𝐸−02	3.95𝐸−02	1.15𝐸−02	6.56𝐸−03	𝟕.𝟒𝟑𝐄−𝟎𝟐	7.93𝐸−03
Cm-246	2.21𝐸−03	2.27𝐸−03	1.38𝐸−03	8.94𝐸−04	𝟔.𝟕𝟔𝐄−𝟎𝟑	7.85𝐸−04
Cm-247	2.69𝐸−05	3.63𝐸−05	1.93𝐸−05	1.26𝐸−05	𝟗.𝟓𝟐𝐄−𝟎𝟓	7.82𝐸−06
Cm-248	1.81𝐸−06	2.53𝐸−06	1.46𝐸−06	7.52𝐸−07	𝟔.𝟓𝟔𝐄−𝟎𝟔	4.22𝐸−07
Bk-249	5.74𝐸−10	3.77𝐸−13	9.50𝐸−12	6.46𝐸−14	𝟓.𝟖𝟒𝐄−𝟏𝟎	3.71𝐸−18
Cf-249	2.15𝐸−08	4.57𝐸−08	1.99𝐸−08	1.07𝐸−08	𝟗.𝟕𝟖𝐄−𝟎𝟖	2.02𝐸−09
Cf-250	2.16𝐸−09	3.02𝐸−09	1.51𝐸−09	8.16𝐸−10	𝟕.𝟓𝟏𝐄−𝟎𝟗	1.34𝐸−11
Cf-251	2.91𝐸−10	3.70𝐸−09	1.08𝐸−09	8.24𝐸−10	𝟓.𝟗𝟎𝐄−𝟎𝟗	0.00𝐸+00
Cf-252	1.34𝐸−11	2.56𝐸−11	9.94𝐸−12	6.32𝐸−12	𝟓.𝟓𝟑𝐄−𝟏𝟏	0.00𝐸+00
Cs-134	7.81𝐸−02	3.26𝐸−04	8.89𝐸−03	1.60𝐸−04	𝟖.𝟕𝟒𝐄−𝟎𝟐	5.35𝐸−05
Cs-135	2.92𝐸+00	6.03𝐸−01	1.78𝐸+00	1.26𝐸−01	𝟓.𝟒𝟑𝐄+𝟎𝟎	2.13𝐸+00
Cs-137	6.54𝐸+00	6.67𝐸−01	2.93𝐸+00	2.37𝐸−01	𝟏.𝟎𝟒𝐄+𝟎𝟏	3.49𝐸+00
Sr-90	2.86𝐸+00	1.48𝐸−01	1.23𝐸+00	5.47𝐸−02	𝟒.𝟐𝟗𝐄+𝟎𝟎	1.45𝐸+00
Tc-99	5.59𝐸+00	6.92𝐸−01	2.77𝐸+00	2.21𝐸−01	𝟗.𝟐𝟖𝐄+𝟎𝟎	4.73𝐸+00
I-129	1.32𝐸+00	2.16𝐸−01	6.67𝐸−01	6.63𝐸−02	𝟐.𝟐𝟕𝐄+𝟎𝟎	1.14𝐸+00
Ru-106	3.15𝐸−02	5.25𝐸−06	6.73𝐸−04	2.36𝐸−06	𝟑.𝟐𝟐𝐄−𝟎𝟐	1.18𝐸−08