The irradiation dose rates and exposure times used differ from those shown in the Pre-evaluation
Test Plan (SV2-ABE-TASI-PLN-0004). The new rates and times are shown in Table 4.
Table 4 Irradiation Dose Rates and Exposure Times
Cumulated
Dose
[krad(Si)]
0
2.16
5.04
10.08
20.16
34.56
52.56
Irradiation
Steps
Initial test
1
2
3
4
5
6
Single
Exposure
Time [h]
0
6
8
14
28
40
50
Dose Rate
[rad/h]
360
360
360
360
360
360
360
Progressive
irradiation
Time [h]
0
6
14
28
56
96
146
The results of the electrical tests performed following each irradiation step are shown in the
following tables. The two TLDs (90 and 91) that were attached to the fixture in the beginning of
the irradiation process were not removed and analyzed until after irradiation step #3; therefore, no
actual cumulated dose measurement was made or can be reported in irradiation steps #1 and #2.
Table 5 Electrical Characterization of all Units after Irradiation Step #1
IRRADIATION STEP # 1
Date : 03/25/2013
Expected cumul. dose:
2.16 krad
Time: 16:15
Actual cumulated dose: N/A
krad
_x_ Connectors #1 #2 & #3 powered ON
ELECTRICAL TEST RESULTS
DUT #
1
2
3
4
5
6
DEVICE SERIAL #
177088
177155
177157
177192
177193
177194
TEST CONDITION
powered
powered
powered
unpowered
unpowered
reference
Null bias (mV)
Positive supply current (mA)
Negative supply current (mA)
231.1
200.4
179.2
137.1
187.2
146.4
11.2
11.2
11.2
11.5
11.9
12
10.4
10.4
10.5
10.8
10.4
10.5
Self test output (V)
1.466
1.424
1.411
1.365
1.421
1.378
Temperature_output (mV)
REMARKS
Room Ambient:
-88.2
-88.5
-86.3
-102.5
-89.5
-96.7
21.5
21.5
21.5
22
22
22
ITAR CONTROLLED
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IDENTIFICATION OF AND RESTRICTIONS ON USE AND DISCLOSURE OF PROPRIETARY DATA
The design information contained herein is the sole property of Systron Donner Inertial.
The disclosure of this information does not constitute the release of the proprietary rights thereof, but is
to be used for information purposes only when necessary. Permission to reproduce this information of
the product described herein must be obtained in writing from the Systron Donner Inertial.
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Table 6 Electrical Characterization of all Units after Irradiation Step #2
IRRADIATION STEP # 2
Date : 03/26/2013
Expected cumul. dose:
5.04 krad
Time: 1:22
Actual cumulated dose: N/A
krad
ELECTRICAL TEST RESULTS
DUT #
1
2
3
4
5
6
DEVICE SERIAL #
177088
177155
177157
177192
177193
177194
TEST CONDITION
powered
powered
powered
unpowered
unpowered
reference
Null bias (mV)
299.5
300.7
221.1
117.4
216.2
146.5
Positive supply current (mA)
11.2
11.3
11.3
12.3
12
12.1
Negative supply current (mA)
10.3
10.3
10.4
10.7
10.3
10.5
Self test output (V)
Temperature_output (mV)
REMARKS
Room Ambient:
1.54
1.522
1.451
1.347
1.444
1.378
-86.7
-85.4
-83.2
-103.2
-86.4
-94.5
22
22
22
22
22
22
Table 7 Electrical Characterization of all Units after Irradiation Step #3
IRRADIATION STEP # 3
Date : 03/26/2013
Expected cumul. dose:
10.08 krad
Time: 16:52
Actual cumulated dose:
11.515 krad
ELECTRICAL TEST RESULTS
DUT #
1
2
3
4
5
6
DEVICE SERIAL #
177088
177155
177157
177192
177193
177194
TEST CONDITION
powered
powered
powered
unpowered
unpowered
reference
Null bias (mV)
502.4
681.1
342.2
195.5
404.9
Positive supply current (mA)
11.2
11.3
11.3
12.2
11.2
146.7
12
Negative supply current (mA)
10.2
10.1
10.2
10.5
10.2
10.5
Self test output (V)
1.741
1.896
1.569
1.426
1.624
1.378
Temperature_output (mV)
REMARKS
Room Ambient:
-86.5
-88.1
-83.1
-103.8
-88.2
-95.2
22
22
22
21.2
21.5
21.5
Two TLDs, numbers 90 and 91, were used during the irradiation steps #1 through #3. The
readings obtained from the TLD Report (see APPENDIX B) show that an average dosage of
11.515krad had been applied to the units.
ITAR CONTROLLED
SD91-02 REV.E
IDENTIFICATION OF AND RESTRICTIONS ON USE AND DISCLOSURE OF PROPRIETARY DATA
The design information contained herein is the sole property of Systron Donner Inertial.
The disclosure of this information does not constitute the release of the proprietary rights thereof, but is
to be used for information purposes only when necessary. Permission to reproduce this information of
the product described herein must be obtained in writing from the Systron Donner Inertial.
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Table 8 Electrical Characterization of all Units after Irradiation Step #4
IRRADIATION STEP # 4
Date : 03/29/2013
Expected cumul. dose:
20.16 krad
Time: 22:05
Actual cumulated dose:
23.245 krad
ELECTRICAL TEST RESULTS
DUT #
1
2
3
4
5
6
DEVICE SERIAL #
177088
177155
177157
177192
177193
177194
TEST CONDITION
powered
powered
powered
unpowered
unpowered
reference
Null bias (mV)
1.034V
1.632V
567.9
659.9 1.306V
146.8
Positive supply current (mA)
12.1
12.1
12.2
12.4
12.1
12.1
Negative supply current (mA)
9.9
9.9
10
10.1
9.8
10.5
Self test output (V)
2.273
2.835
1.787
1.861
2.501
1.378
Temperature_output (mV)
REMARKS
Room Ambient:
-85.6
-89.9
-81.8
-107.2
-91.8
-92.9
21.5
21.5
21.5
22
22
22
TLD numbers 94 and 95 were used during irradiation step #4. The readings obtained from the
TLD Report (see APPENDIX B) show that an average of an additional 11.73krad was applied
during this step, which gives a cumulative total dose of 23.245krad.
After submitting the electrical characterization of step #4 to ThalesAlenia Space , we were advised
to remove units 177088, 177155, and 177193 prior to irradiation step #5. These units were
physically removed from the fixture, unpowered, and set outside the radiation chamber.
Table 9 Electrical Characterization of all Units after Irradiation Step #5
IRRADIATION STEP # 5
Date : 03/29/2013
Expected cumul. dose:
34.56 krad
Time: 15:32
Actual cumulated dose:
39.025 krad
ELECTRICAL TEST RESULTS
DUT #
1
2
3
4
5
6
DEVICE SERIAL #
177088
177155
177157
177192
177193
177194
TEST CONDITION
powered
powered
powered
unpowered
unpowered
reference
Null bias (mV)
963.9
1.581
Positive supply current (mA)
12.1
12.2
Negative supply current (mA)
9.9
9.9
2.197
2.779
0.745
-100.3
-99.3
*NOTE . 21.5C *NOTE . 21.5C
783.1
Self test output (V)
Temperature_output (mV)
REMARKS
Room Ambient:
745.7
619.8
1.185
12.1
5.3
12.1
12.1
0.04
0.001
9.9
10.5
0.6214
2.382
1.378
1.064
-100.2
*NOTE . 21.5C
-92.2
22C
21.5
*NOTE: DUTs 1,2 and 5 were exposed to Steps 1 through 4 irradiation only and removed after step 4.
ITAR CONTROLLED
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IDENTIFICATION OF AND RESTRICTIONS ON USE AND DISCLOSURE OF PROPRIETARY DATA
The design information contained herein is the sole property of Systron Donner Inertial.
The disclosure of this information does not constitute the release of the proprietary rights thereof, but is
to be used for information purposes only when necessary. Permission to reproduce this information of
the product described herein must be obtained in writing from the Systron Donner Inertial.
146.9
22.0C
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TLD numbers 98 and 99 were used during irradiation step #5. The readings obtained from the
TLD Report (see APPENDIX B) show that an average of an additional dose of 15.78krad was
applied during this step, which gives a cumulative total dose of 39.025krad.
Table 10 Electrical Characterization of all Units after Irradiation Step #6
IRRADIATION STEP # 6 (FINAL TEST)
Date : 03/31/2013
Expected cumul. dose:
52.56 krad
Time: 18:51
Actual cumulated dose:
58.205 krad
ELECTRICAL TEST RESULTS
DUT #
1
2
3
4
5
6
DEVICE SERIAL #
177088
177155
177157
177192
177193
177194
TEST CONDITION
powered
powered
powered
unpowered
unpowered
reference
Null bias (mV)
943.9 1.56V
742.1
537 1.139V
146.9
Positive supply current (mA)
12.1
12.2
3.1
0.3
12.1
Negative supply current (mA)
9.9
9.9
0.02
0.02
9.9
10.5
2.177
2.749
0.7419
0.5437
2.334
1.379
-90.7
-92.6
*NOTE 22.0C *NOTE 22.0C
961.2
638.5
-93.2
*NOTE 22.5C
-93.3
Self test output (V)
Temperature_output (mV)
REMARKS
Room Ambient:
21.5C
22.0C
*NOTE: DUTs 1,2 and 5 were exposed to Steps 1 through 4 irradiation only and removed after step 4.
12.1
22.0C
TLD numbers 100 and 101 were used during irradiation step #6. The readings obtained from the
TLD Report (see APPENDIX B) show that an average of an additional 19.18krad was applied
during this step, which gives a cumulative total dose of 58.205krad.
Post-radiation performance testing was performed at SDI over 24 hours following the completion
of the final exposure. Two units, 177157 and 177192, were non-functional. The results are shown
in Table 11 for those units that continued to function following the radiation testing. Scale factor
error is the percent difference between pre- and post-irradiation scale factor, and null bias at 22°C
mean absolute error is the absolute value of the difference between the pre- and post-irradiation
null bias means. Residuals from the post-radiation rate output model are shown in Figure 7
through Figure 10.
SN
Table 11 Post-radiation Performance Verification Results
Null Bias at 22°C Scale Factor Non-Linearity Scale Factor
Mean
Absolute
Error
Error
V
177088
177155
177157
177192
177193
177194
ITAR CONTROLLED
SD91-02 REV.E
0.932526
1.241229
N/A
N/A
0.802568
0.15322
V/°/s
°/s
0.248068
0.246888
N/A
N/A
0.246726
0.249653
%
0.010391
0.047482
N/A
N/A
0.13258
0.003744
0.268843
1.153098
N/A
N/A
1.266044
0.01255
IDENTIFICATION OF AND RESTRICTIONS ON USE AND DISCLOSURE OF PROPRIETARY DATA
The design information contained herein is the sole property of Systron Donner Inertial.
The disclosure of this information does not constitute the release of the proprietary rights thereof, but is
to be used for information purposes only when necessary. Permission to reproduce this information of
the product described herein must be obtained in writing from the Systron Donner Inertial.
Null Bias at
22°C Mean
Absolute
Error
V
0.764479
1.108509
N/A
N/A
0.644775
0.000315
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