Amptek Silicon Drift Diode (SDD)
Efficiency versus energy for 3 window thickness
For each configuration, the first column is total attenuation, second is photoabsorption
Data computed using NIST attenutation values (physics.nist.gov) and nominal device specifications

For more information, visit www.amptek.com

Window	1/3 mil Be window		1/2 mil Be window		1 mil Be window				
Energy 	Total Atten	P.E. Atten	Total Atten	P.E. Atten	Total Atten	P.E. Atten			
keV				
1.40E-02	3.06E-102	3.06E-102	3.92E-142	3.92E-142	5.99E-253	5.99E-253			
1.49E-02	9.62E-98	9.62E-98	3.91E-137	3.91E-137	1.49E-246	1.49E-246			
1.60E-02	1.56E-92	1.56E-92	8.68E-131	8.68E-131	4.71E-237	4.71E-237			
1.71E-02	8.21E-87	8.21E-87	1.91E-123	1.91E-123	3.36E-225	3.36E-225			
1.82E-02	8.80E-81	8.80E-81	1.94E-115	1.94E-115	1.04E-211	1.04E-211			
1.91E-02	2.06E-76	2.06E-76	1.65E-109	1.65E-109	1.90E-201	1.90E-201			
1.94E-02	5.44E-75	5.44E-75	1.41E-107	1.41E-107	4.33E-198	4.33E-198			
1.95E-02	1.27E-74	1.27E-74	4.47E-107	4.47E-107	3.21E-197	3.21E-197			
1.95E-02	1.29E-74	1.29E-74	4.61E-107	4.61E-107	3.39E-197	3.39E-197			
1.96E-02	2.74E-75	2.74E-75	1.54E-107	1.54E-107	4.01E-197	4.01E-197			
1.99E-02	5.22E-74	5.22E-74	9.14E-106	9.14E-106	5.60E-194	5.60E-194			
2.08E-02	7.04E-70	7.04E-70	5.30E-100	5.30E-100	1.12E-183	1.12E-183			
2.23E-02	3.98E-64	3.98E-64	7.00E-92	7.00E-92	5.59E-169	5.59E-169
2.38E-02	1.31E-58	1.31E-58	5.04E-84	5.04E-84	1.28E-154	1.28E-154
2.55E-02	2.22E-53	2.22E-53	1.57E-76	1.57E-76	7.77E-141	7.77E-141
2.58E-02	1.90E-52	1.90E-52	3.46E-75	3.46E-75	2.36E-138	2.36E-138
2.62E-02	2.42E-51	2.42E-51	1.34E-73	1.34E-73	2.03E-135	2.03E-135
2.63E-02	4.76E-51	4.76E-51	3.56E-73	3.56E-73	1.23E-134	1.23E-134
2.64E-02	1.31E-50	1.31E-50	1.54E-72	1.54E-72	1.83E-133	1.83E-133
2.68E-02	1.67E-49	1.67E-49	5.95E-71	5.95E-71	1.57E-130	1.57E-130
2.72E-02	1.81E-48	1.81E-48	1.83E-69	1.83E-69	8.85E-128	8.85E-128
2.91E-02	6.81E-44	6.81E-44	7.34E-63	7.34E-63	1.51E-115	1.51E-115
3.11E-02	1.18E-39	1.18E-39	9.72E-57	9.72E-57	3.43E-104	3.43E-104
3.32E-02	9.38E-36	9.38E-36	4.25E-51	4.25E-51	1.02E-93	1.02E-93
3.55E-02	3.57E-32	3.57E-32	6.39E-46	6.39E-46	4.14E-84	4.14E-84
3.80E-02	6.81E-29	6.81E-29	3.52E-41	3.52E-41	2.61E-75	2.61E-75
4.06E-02	6.68E-26	6.68E-26	7.38E-37	7.38E-37	2.71E-67	2.71E-67
4.34E-02	3.51E-23	3.51E-23	6.22E-33	6.22E-33	5.10E-60	5.10E-60
4.64E-02	1.02E-20	1.02E-20	2.22E-29	2.22E-29	1.93E-53	1.93E-53
4.96E-02	1.72E-18	1.72E-18	3.59E-26	3.59E-26	1.64E-47	1.64E-47
5.30E-02	1.75E-16	1.75E-16	2.77E-23	2.77E-23	3.56E-42	3.56E-42
5.67E-02	1.12E-14	1.12E-14	1.09E-20	1.09E-20	2.18E-37	2.18E-37
6.06E-02	4.66E-13	4.66E-13	2.30E-18	2.30E-18	4.20E-33	4.20E-33
6.48E-02	1.31E-11	1.31E-11	2.77E-16	2.77E-16	2.84E-29	2.84E-29
6.92E-02	2.58E-10	2.58E-10	1.98E-14	1.98E-14	7.37E-26	7.37E-26
7.40E-02	3.69E-09	3.69E-09	8.94E-13	8.94E-13	8.11E-23	8.11E-23
7.91E-02	3.92E-08	3.92E-08	2.64E-11	2.64E-11	4.09E-20	4.09E-20
8.46E-02	3.20E-07	3.20E-07	5.33E-10	5.33E-10	1.02E-17	1.02E-17
9.04E-02	2.06E-06	2.06E-06	7.65E-09	7.65E-09	1.36E-15	1.36E-15
9.67E-02	1.07E-05	1.07E-05	8.07E-08	8.07E-08	1.02E-13	1.02E-13
9.72E-02	1.21E-05	1.21E-05	9.61E-08	9.61E-08	1.41E-13	1.41E-13
9.87E-02	1.68E-05	1.68E-05	1.53E-07	1.53E-07	3.30E-13	3.30E-13
9.91E-02	1.83E-05	1.83E-05	1.73E-07	1.73E-07	4.14E-13	4.14E-13
9.97E-02	5.81E-07	5.81E-07	5.82E-09	5.82E-09	1.63E-14	1.63E-14
1.01E-01	7.87E-07	7.87E-07	9.06E-09	9.06E-09	3.73E-14	3.73E-14
1.03E-01	1.22E-06	1.22E-06	1.71E-08	1.71E-08	1.23E-13	1.23E-13
1.09E-01	3.05E-06	3.05E-06	6.60E-08	6.60E-08	1.57E-12	1.57E-12
1.10E-01	3.96E-06	3.96E-06	9.67E-08	9.67E-08	3.20E-12	3.20E-12
1.11E-01	4.24E-06	4.24E-06	1.06E-07	1.06E-07	3.83E-12	3.83E-12
1.12E-01	7.89E-113	7.89E-113	1.81E-174	1.81E-174	0.00E+00	0.00E+00
1.13E-01	1.94E-109	1.94E-109	3.48E-169	3.48E-169	0.00E+00	0.00E+00
1.18E-01	2.26E-100	2.26E-100	4.67E-155	4.67E-155	5.86E-307	5.86E-307
1.26E-01	1.91E-87	1.91E-87	6.20E-135	6.20E-135	7.53E-267	7.53E-267
1.35E-01	6.41E-76	6.41E-76	5.13E-117	5.13E-117	3.55E-231	3.55E-231
1.44E-01	1.33E-66	1.33E-66	1.49E-102	1.49E-102	2.05E-202	2.05E-202
1.46E-01	4.04E-65	4.04E-65	2.97E-100	2.97E-100	7.57E-198	7.57E-198
1.48E-01	6.93E-63	6.93E-63	8.70E-97	8.70E-97	5.90E-191	5.90E-191
1.49E-01	2.73E-62	2.73E-62	7.32E-96	7.32E-96	4.06E-189	4.06E-189
1.49E-01	1.51E-61	1.51E-61	1.26E-94	1.26E-94	1.64E-186	1.64E-186
1.52E-01	2.61E-59	2.61E-59	3.72E-91	3.72E-91	1.29E-179	1.29E-179
1.54E-01	8.89E-57	8.89E-57	3.16E-87	3.16E-87	8.27E-172	8.27E-172
1.65E-01	8.16E-49	8.16E-49	6.85E-75	6.85E-75	2.53E-147	2.53E-147
1.76E-01	7.51E-42	7.51E-42	4.11E-64	4.11E-64	5.98E-126	5.98E-126
1.88E-01	8.53E-36	8.53E-36	9.50E-55	9.50E-55	2.14E-107	2.14E-107
2.01E-01	1.49E-30	1.49E-30	1.20E-46	1.20E-46	2.33E-91	2.33E-91
2.15E-01	4.95E-26	4.95E-26	1.14E-39	1.14E-39	1.51E-77	1.51E-77
2.30E-01	3.79E-22	3.79E-22	1.12E-33	1.12E-33	1.06E-65	1.06E-65
2.46E-01	8.04E-19	8.04E-19	1.51E-28	1.51E-28	1.45E-55	1.45E-55
2.63E-01	5.55E-16	5.55E-16	3.58E-24	3.58E-24	6.34E-47	6.34E-47
2.78E-01	1.44E-13	1.44E-13	1.88E-20	1.88E-20	1.41E-39	1.41E-39
2.81E-01	3.92E-12	3.92E-12	3.07E-18	3.07E-18	3.34E-35	3.34E-35
2.82E-01	4.30E-12	4.30E-12	3.54E-18	3.54E-18	4.42E-35	4.42E-35
2.84E-01	4.68E-12	4.68E-12	4.02E-18	4.02E-18	5.68E-35	5.68E-35
2.85E-01	5.10E-14	5.10E-14	4.69E-20	4.69E-20	7.97E-37	7.97E-37
2.89E-01	8.02E-14	8.02E-14	8.70E-20	8.70E-20	2.35E-36	2.35E-36
3.01E-01	2.51E-13	2.51E-13	4.19E-19	4.19E-19	3.75E-35	3.75E-35
3.21E-01	2.35E-11	2.35E-11	3.39E-16	3.39E-16	1.21E-29	1.21E-29
3.43E-01	1.12E-09	1.12E-09	1.00E-13	1.00E-13	5.63E-25	5.63E-25
3.67E-01	3.03E-08	3.03E-08	1.25E-11	1.25E-11	5.00E-21	5.00E-21
3.92E-01	4.96E-07	4.96E-07	7.46E-10	7.46E-10	1.07E-17	1.07E-17
3.94E-01	5.48E-07	5.48E-07	8.61E-10	8.61E-10	1.40E-17	1.40E-17
4.00E-01	9.27E-07	9.27E-07	1.85E-09	1.85E-09	5.90E-17	5.90E-17
4.01E-01	1.07E-06	1.07E-06	2.27E-09	2.27E-09	8.66E-17	8.66E-17
4.04E-01	1.32E-06	1.32E-06	3.09E-09	3.09E-09	1.54E-16	1.54E-16
4.10E-01	2.23E-06	2.23E-06	6.66E-09	6.66E-09	6.47E-16	6.47E-16
4.20E-01	5.28E-06	5.28E-06	2.35E-08	2.35E-08	6.85E-15	6.85E-15
4.48E-01	3.89E-05	3.89E-05	4.28E-07	4.28E-07	1.56E-12	1.56E-12
4.79E-01	2.09E-04	2.09E-04	4.93E-06	4.93E-06	1.49E-10	1.49E-10
5.12E-01	8.59E-04	8.59E-04	3.83E-05	3.83E-05	6.77E-09	6.77E-09
5.48E-01	2.81E-03	2.81E-03	2.13E-04	2.13E-04	1.65E-07	1.65E-07
5.86E-01	7.58E-03	7.58E-03	8.96E-04	8.96E-04	2.38E-06	2.38E-06
6.26E-01	1.74E-02	1.74E-02	2.97E-03	2.97E-03	2.20E-05	2.20E-05
6.69E-01	3.47E-02	3.47E-02	8.06E-03	8.06E-03	1.40E-04	1.40E-04
7.15E-01	6.17E-02	6.17E-02	1.85E-02	1.85E-02	6.49E-04	6.49E-04
7.65E-01	9.97E-02	9.97E-02	3.69E-02	3.69E-02	2.32E-03	2.32E-03
8.18E-01	1.48E-01	1.48E-01	6.53E-02	6.53E-02	6.68E-03	6.68E-03
8.74E-01	2.07E-01	2.07E-01	1.05E-01	1.05E-01	1.60E-02	1.60E-02
9.34E-01	2.72E-01	2.72E-01	1.56E-01	1.56E-01	3.31E-02	3.31E-02
9.99E-01	3.41E-01	3.41E-01	2.15E-01	2.15E-01	6.02E-02	6.02E-02
1.07E+00	4.13E-01	4.13E-01	2.84E-01	2.84E-01	1.00E-01	1.00E-01
1.14E+00	4.84E-01	4.84E-01	3.56E-01	3.56E-01	1.52E-01	1.52E-01
1.22E+00	5.52E-01	5.52E-01	4.30E-01	4.30E-01	2.14E-01	2.14E-01
1.30E+00	6.15E-01	6.15E-01	5.01E-01	5.01E-01	2.83E-01	2.83E-01
1.39E+00	6.71E-01	6.71E-01	5.67E-01	5.67E-01	3.56E-01	3.56E-01
1.49E+00	7.21E-01	7.21E-01	6.29E-01	6.29E-01	4.29E-01	4.29E-01
1.59E+00	7.65E-01	7.65E-01	6.84E-01	6.84E-01	5.00E-01	5.00E-01
1.70E+00	8.03E-01	8.03E-01	7.32E-01	7.32E-01	5.67E-01	5.67E-01
1.80E+00	8.30E-01	8.30E-01	7.68E-01	7.68E-01	6.19E-01	6.19E-01
1.82E+00	8.35E-01	8.35E-01	7.75E-01	7.75E-01	6.29E-01	6.29E-01
1.83E+00	8.37E-01	8.37E-01	7.77E-01	7.77E-01	6.32E-01	6.32E-01
1.84E+00	8.39E-01	8.39E-01	7.79E-01	7.79E-01	6.36E-01	6.36E-01
1.85E+00	7.57E-01	7.57E-01	7.04E-01	7.04E-01	5.76E-01	5.76E-01
1.88E+00	7.64E-01	7.64E-01	7.13E-01	7.13E-01	5.88E-01	5.88E-01
1.95E+00	7.84E-01	7.84E-01	7.37E-01	7.37E-01	6.21E-01	6.21E-01
2.08E+00	8.16E-01	8.16E-01	7.76E-01	7.76E-01	6.75E-01	6.75E-01
2.22E+00	8.46E-01	8.46E-01	8.12E-01	8.12E-01	7.25E-01	7.25E-01
2.38E+00	8.71E-01	8.71E-01	8.43E-01	8.43E-01	7.68E-01	7.68E-01
2.54E+00	8.92E-01	8.92E-01	8.68E-01	8.68E-01	8.05E-01	8.05E-01
2.72E+00	9.10E-01	9.10E-01	8.90E-01	8.90E-01	8.37E-01	8.37E-01
2.90E+00	9.25E-01	9.25E-01	9.08E-01	9.08E-01	8.64E-01	8.64E-01
3.11E+00	9.38E-01	9.38E-01	9.24E-01	9.24E-01	8.87E-01	8.87E-01
3.32E+00	9.48E-01	9.48E-01	9.37E-01	9.37E-01	9.07E-01	9.07E-01
3.55E+00	9.57E-01	9.57E-01	9.48E-01	9.48E-01	9.23E-01	9.23E-01
3.79E+00	9.65E-01	9.65E-01	9.57E-01	9.57E-01	9.37E-01	9.37E-01
4.06E+00	9.71E-01	9.71E-01	9.65E-01	9.65E-01	9.48E-01	9.48E-01
4.33E+00	9.76E-01	9.76E-01	9.71E-01	9.71E-01	9.57E-01	9.57E-01
4.63E+00	9.80E-01	9.80E-01	9.76E-01	9.76E-01	9.65E-01	9.65E-01
4.95E+00	9.84E-01	9.84E-01	9.80E-01	9.80E-01	9.71E-01	9.71E-01
5.30E+00	9.87E-01	9.87E-01	9.84E-01	9.84E-01	9.76E-01	9.76E-01
5.66E+00	9.89E-01	9.89E-01	9.87E-01	9.87E-01	9.80E-01	9.80E-01
6.05E+00	9.91E-01	9.91E-01	9.89E-01	9.89E-01	9.84E-01	9.84E-01
6.47E+00	9.92E-01	9.92E-01	9.91E-01	9.91E-01	9.87E-01	9.87E-01
6.92E+00	9.94E-01	9.94E-01	9.92E-01	9.92E-01	9.89E-01	9.89E-01
7.39E+00	9.95E-01	9.95E-01	9.93E-01	9.93E-01	9.90E-01	9.90E-01
7.90E+00	9.95E-01	9.95E-01	9.94E-01	9.94E-01	9.91E-01	9.91E-01
8.45E+00	9.93E-01	9.93E-01	9.92E-01	9.92E-01	9.90E-01	9.90E-01
9.03E+00	9.88E-01	9.87E-01	9.87E-01	9.86E-01	9.85E-01	9.84E-01
9.65E+00	9.76E-01	9.74E-01	9.75E-01	9.73E-01	9.73E-01	9.72E-01
1.03E+01	9.54E-01	9.51E-01	9.54E-01	9.50E-01	9.52E-01	9.49E-01
1.10E+01	9.21E-01	9.16E-01	9.21E-01	9.15E-01	9.20E-01	9.14E-01
1.18E+01	8.76E-01	8.68E-01	8.76E-01	8.68E-01	8.75E-01	8.67E-01
1.26E+01	8.21E-01	8.10E-01	8.20E-01	8.09E-01	8.20E-01	8.09E-01
1.35E+01	7.57E-01	7.42E-01	7.56E-01	7.42E-01	7.56E-01	7.41E-01
1.44E+01	6.87E-01	6.70E-01	6.87E-01	6.70E-01	6.86E-01	6.69E-01
1.54E+01	6.16E-01	5.96E-01	6.16E-01	5.96E-01	6.15E-01	5.95E-01
1.65E+01	5.45E-01	5.23E-01	5.45E-01	5.23E-01	5.45E-01	5.23E-01
1.76E+01	4.78E-01	4.54E-01	4.78E-01	4.54E-01	4.77E-01	4.53E-01
1.88E+01	4.15E-01	3.90E-01	4.15E-01	3.90E-01	4.15E-01	3.90E-01
2.01E+01	3.58E-01	3.32E-01	3.58E-01	3.32E-01	3.58E-01	3.32E-01
2.15E+01	3.08E-01	2.81E-01	3.08E-01	2.81E-01	3.08E-01	2.81E-01
2.30E+01	2.63E-01	2.36E-01	2.63E-01	2.36E-01	2.63E-01	2.36E-01
2.46E+01	2.25E-01	1.98E-01	2.24E-01	1.98E-01	2.24E-01	1.98E-01
2.63E+01	1.91E-01	1.65E-01	1.91E-01	1.65E-01	1.91E-01	1.65E-01
2.81E+01	1.62E-01	1.36E-01	1.62E-01	1.36E-01	1.62E-01	1.36E-01
3.00E+01	1.38E-01	1.12E-01	1.38E-01	1.12E-01	1.38E-01	1.12E-01
3.21E+01	1.17E-01	9.19E-02	1.17E-01	9.19E-02	1.17E-01	9.18E-02
3.43E+01	9.98E-02	7.53E-02	9.98E-02	7.52E-02	9.97E-02	7.52E-02
3.67E+01	8.54E-02	6.15E-02	8.54E-02	6.15E-02	8.54E-02	6.15E-02
3.92E+01	7.35E-02	5.02E-02	7.35E-02	5.02E-02	7.35E-02	5.02E-02
4.19E+01	6.35E-02	4.08E-02	6.35E-02	4.08E-02	6.34E-02	4.08E-02
4.48E+01	5.52E-02	3.31E-02	5.52E-02	3.31E-02	5.51E-02	3.31E-02
4.79E+01	4.83E-02	2.68E-02	4.83E-02	2.68E-02	4.83E-02	2.68E-02
5.12E+01	4.27E-02	2.17E-02	4.27E-02	2.17E-02	4.26E-02	2.17E-02
5.47E+01	3.80E-02	1.76E-02	3.80E-02	1.76E-02	3.80E-02	1.76E-02
5.85E+01	3.41E-02	1.42E-02	3.41E-02	1.42E-02	3.41E-02	1.42E-02
6.25E+01	3.09E-02	1.15E-02	3.09E-02	1.15E-02	3.09E-02	1.15E-02
6.68E+01	2.83E-02	9.33E-03	2.83E-02	9.33E-03	2.83E-02	9.32E-03
7.15E+01	2.60E-02	7.54E-03	2.60E-02	7.54E-03	2.60E-02	7.54E-03
7.64E+01	2.42E-02	6.10E-03	2.42E-02	6.10E-03	2.42E-02	6.10E-03
8.17E+01	2.26E-02	4.94E-03	2.26E-02	4.93E-03	2.26E-02	4.93E-03
8.73E+01	2.13E-02	3.99E-03	2.13E-02	3.99E-03	2.13E-02	3.99E-03
9.33E+01	2.01E-02	3.23E-03	2.01E-02	3.23E-03	2.01E-02	3.23E-03
9.98E+01	1.91E-02	2.61E-03	1.91E-02	2.61E-03	1.91E-02	2.61E-03
1.07E+02	1.83E-02	2.11E-03	1.83E-02	2.11E-03	1.83E-02	2.11E-03
1.14E+02	1.75E-02	1.71E-03	1.75E-02	1.70E-03	1.75E-02	1.70E-03
1.22E+02	1.69E-02	1.38E-03	1.69E-02	1.38E-03	1.69E-02	1.38E-03
1.30E+02	1.63E-02	1.11E-03	1.63E-02	1.11E-03	1.63E-02	1.11E-03
1.39E+02	1.57E-02	9.01E-04	1.57E-02	9.01E-04	1.57E-02	9.00E-04
1.49E+02	1.52E-02	7.28E-04	1.52E-02	7.28E-04	1.52E-02	7.28E-04
1.59E+02	1.48E-02	5.89E-04	1.48E-02	5.88E-04	1.48E-02	5.88E-04
1.70E+02	1.44E-02	4.76E-04	1.44E-02	4.76E-04	1.44E-02	4.76E-04
1.82E+02	1.40E-02	3.85E-04	1.40E-02	3.85E-04	1.40E-02	3.84E-04
1.94E+02	1.36E-02	3.11E-04	1.36E-02	3.11E-04	1.36E-02	3.11E-04
2.08E+02	1.32E-02	2.51E-04	1.32E-02	2.51E-04	1.32E-02	2.51E-04
2.22E+02	1.29E-02	2.03E-04	1.29E-02	2.03E-04	1.28E-02	2.03E-04
2.37E+02	1.25E-02	1.64E-04	1.25E-02	1.64E-04	1.25E-02	1.64E-04
2.54E+02	1.22E-02	1.33E-04	1.22E-02	1.33E-04	1.22E-02	1.33E-04
2.71E+02	1.19E-02	1.07E-04	1.19E-02	1.07E-04	1.19E-02	1.07E-04
2.90E+02	1.15E-02	8.67E-05	1.15E-02	8.67E-05	1.15E-02	8.67E-05
3.10E+02	1.12E-02	7.01E-05	1.12E-02	7.01E-05	1.12E-02	7.01E-05
3.32E+02	1.09E-02	5.67E-05	1.09E-02	5.67E-05	1.09E-02	5.66E-05
3.54E+02	1.06E-02	4.58E-05	1.06E-02	4.58E-05	1.06E-02	4.58E-05
3.79E+02	1.03E-02	3.70E-05	1.03E-02	3.70E-05	1.03E-02	3.70E-05
4.05E+02	1.00E-02	2.99E-05	1.00E-02	2.99E-05	1.00E-02	2.99E-05