CV3 Radiation Testing: MGH Post Analysis - Indico.bnl.gov
CV3 Radiation Testing: MGH Post Analysis Julia Gonski 18 March 2021 18 March 2021 J. Gonski 1
SEU Counters Scanning all logs throughout the day, each channel hits about the same total SEU count before breaking down ( 60) Example: Actual Counting 18 March 2021 Example: Broken J. Gonski 2
Total Dose Board 26 LOW RATE Run 0002 Msmnts HIGH RATE Run 0004 SCSEU Counts Rate Msmnts SCSEU Counts Run 0005 Rate Msmnts SCSEU Counts Rate Ch1 110 13 0.118 52 inf Ch2 110 7 0.064 52 16 0.31 52 16 0.31 Ch3 110 inf 52 21 0.40 52 21 0.40 Ch4 110 13 0.118 52 11 0.21 52 11 0.21 Ch5 110 11 0.100 52 14 0.27 52 14 0.27 Ch6 110 13 0.118 52 13 0.25 52 13 0.25 Ch7 110 12 0.109 52 13 0.25 52 13 0.25 Ch8 110 13 0.118 52 18 0.35 52 18 0.35 82 Hists SEU Candidates - 1s 52 inf 106 Rate Hists SEU Candidates - 1s 106 Rate Hists SEU Candidates - 1s Rate Ch1 173 25 0.145 88 26 0.30 94 85 0.90 Ch2 173 41 0.237 88 76 0.86 94 158 1.68 Ch3 173 0 0.000 88 0 0.00 94 0 0.00 Ch4 173 40 0.231 88 56 0.64 94 169 1.80 Ch5 173 6 0.035 88 6 0.07 94 23 0.24 Ch6 173 54 0.312 88 75 0.85 94 221 2.35 53 0.306 88 1.00 94 243 2.59 38 0.220 40 0.45 97 1.03 Ch7 173 Ch8 173 273308 starting msmnt dose Predicted SEUs 18 March 2021 9354276 ending msmnt dose 94 Total observed SEUs 367 2.92E 11 Count, from HDF5 Observed SEUs counts * 4.27E4 88 Total observed SEUs 257 Dose, protons/cm2 88 996 5.76E 11 9080968 3.877573336E 11 1001 starting msmnt dose 12447123 ending msmnt dose 12446122 5.314494094E 11 1105 starting msmnt dose 61388548 ending msmnt dose 407.059933918939 61387443 2.6212438161E 12 1737.32281085012 J. Gonski 3
Total Dose Board 24 Run 0007 Ch1 Run 0008 Msmnts SCSEU Counts Start time 15 13 48.875279 Stop time 15 53 44.550054 Hists SEU Candidates 1s Run 0009 Rate Msmnts SCSEU Counts Rate Msmnts SCSEU Counts Rate Rate Hists SEU Candidates 1s Rate Hists SEU Candidates 1s Rate Ch2 Ch3 Ch4 Ch5 Ch6 Ch7 Ch8 Ch1 134 55 0.410 58 71 1.224 58 77 1.328 Ch2 134 93 0.694 58 120 2.069 58 115 1.983 Ch3 134 91 0.679 58 134 2.310 58 134 2.310 Ch4 134 84 0.627 58 126 2.172 58 111 1.914 Ch5 134 5 0.037 58 13 0.224 58 13 0.224 Ch6 134 100 0.746 58 187 3.224 58 173 2.983 Ch7 134 103 0.769 58 206 3.552 58 164 2.828 Ch8 134 59 0.440 58 86 1.483 58 81 1.397 590 943 868 Dose, protons/ cm2 Count, from HDF5 Observed SEUs counts * 4.27E4 344 starting msmnt dose Predicted SEUs 18 March 2021 21073665 21073321 ending msmnt dose 8.998308067E 11 Relative to b26 690.57 1406 starting msmnt dose 42814735 ending msmnt dose 42813329 1.8281291483E 12 3470 starting msmnt dose 47001450 ending msmnt dose 1402.98 46997980 2.006813746E 12 1540.11 J. Gonski 4
Total Dose Board 22 Run 0010 Run 0011 Very high rate Run 0012 Lowered rate Msmnts SCSEU Counts Rate Msmnts SCSEU Counts Rate Msmnts SCSEU Counts Rate Hists SEU Candidates 1s Rate Hists SEU Candidates 1s Rate Hists SEU Candidates - 1s Rate Ch1 Ch2 Ch3 Ch4 Ch5 Ch6 Ch7 Ch8 Ch1 84 58 0.690 84 187 2.226 105 120 1.143 Ch2 84 75 0.893 84 254 3.024 105 173 1.648 Ch3 84 50 0.595 84 290 3.452 105 161 1.533 Ch4 84 52 0.619 84 238 2.833 105 166 1.581 Ch5 84 3 0.036 84 30 0.357 105 17 0.162 Ch6 84 71 0.845 84 464 5.524 105 295 2.810 Ch7 84 70 0.833 84 481 5.726 105 318 3.029 Ch8 84 30 0.357 84 144 1.714 105 95 0.905 409 2088 1345 Dose, protons/ cm2 Count, from HDF5 Observed SEUs counts * 4.27E4 287 starting msmnt dose Predicted SEUs 18 March 2021 9399220 ending msmnt dose Relative to b26 9398933 4.013344391E 11 308.00 16988 starting msmnt dose 146896431 ending msmnt dose Relative to b26 146879443 6.2717522161E 12 6391.54 3109 starting msmnt dose 54210972 ending msmnt dose Relative to b26 J. Gonski 54207863 2.3146757501E 12 770.60 5
Observed SEU Algorithm Issue with current SEU estimate: underpredicts because 2 SEU candidates next to each other do not have a “gap” between them, so won’t get counted. In both cases, gaps of 1 are not filled DAC 37148, Msmnt 12, Channel 8 Old Alg ‣ Loop through all filled bins in hist 8 Entries Mean Std Dev 10 7 10 10 755.5 0.6811 6 10 ‣ If current bin and previous bin are not adjacent, fill with the difference between them 5 10 4 10 3 10 New Alg ‣ Find hist max bin, and find first empty bin on either side 2 10 10 1 746 748 750 752 754 756 758 760 ‣ From there, go to hist upper & lower bounds, and if any bin is non-empty, fill with its distance to the bulk 18 March 2021 J. Gonski 6
Observed SEU Alg Improvement DAC 49080, Msmnt 43, Channel 8 Compare old & new algs in Board 22, Run 0012 (high rate) 8 Entries Mean Std Dev 10 7 10 To do: 24 2576 0.7742 6 10 5 - Add new bad DAC values (with Dev’s input); will lower rate a bit 104 3 10 - Correct the tables, but this will raise our observed SEU rate considerably & hopefully bring closer to prediction Old Alg 18 March 2021 10 102 10 1 2565 2570 2575 2580 2585 2590 2595 New Alg J. Gonski 7
18 March 2021 J. Gonski Total Dose 4 Board 24 Run_0007 Run_0008 Run_0009 Msmnts SCSEU Counts Rate Msmnts SCSEU Counts Rate Msmnts SCSEU Counts Rate Ch1 Start time 15_13_48.875279
4e be 203 bacholor of eng. mgh 69. g shanmugam & s ravindran basic mechanical engg. mgh 70. ganesan gas turbines 3e mgh 71. nag basic and applied thermodynamics, 2e mgh 72. nag heat and mass transfer 3/e mgh 73. rao cad/cam: prin & appl 3e mgh 74. rattan strength of materials 2/e mgh 75. singh machine drawing mgh 76. sukhatme
The Global Medicine Program was founded in 2011 as a joint initiative of MGH Global Health and the Department of Medicine. Aligned with the 4 pillars of MGH's mission—patient care, research, education, and community service—MGH Global Medicine seeks to train leaders to respond to the distress of our global neighbors.
Non-Ionizing Radiation Non-ionizing radiation includes both low frequency radiation and moderately high frequency radiation, including radio waves, microwaves and infrared radiation, visible light, and lower frequency ultraviolet radiation. Non-ionizing radiation has enough energy to move around the atoms in a molecule or cause them to vibrate .
Medical X-rays or radiation therapy for cancer. Ultraviolet radiation from the sun. These are just a few examples of radiation, its sources, and uses. Radiation is part of our lives. Natural radiation is all around us and manmade radiation ben-efits our daily lives in many ways. Yet radiation is complex and often not well understood.
Conservation of potential and kinetic energy for example: A ball mass m rolling with a velocity v down a slope in a gravitational field g Total energy potential kinetic mgh 1/2 mv2 h mgh maximum and 1/2 mv 2 0 1/2 mv2 maximum and mgh 0 For an electron in the well of the plasma potential it is the same
MGH Biostatistics aims to engage in impactful trans-disciplinary partnerships involving quantitative methods in public health and biomedicine. We collaborate with MGH investigators on the development, application and evaluation of rigorous statistical and data science methods to define and
the MGH CMP demonstration period with rates for a 1-year period prior to the start of the MGH CMP demonstration: Original and refresh populations. 101 Table 5-3 Percentage of comparison and intervention beneficiaries meeting process-of-care standards in the baseline year and last 12 months of MGH's CMP: Original and
Literary Theory and Schools of Criticism Introduction A very basic way of thinking about literary theory is that these ideas act as different lenses critics use to view and talk about art, literature, and even culture. These different lenses allow critics to consider works of art based on certain assumptions within that school of theory. The different lenses also allow critics to focus on .
