COMMENT List of materials and properties for charging simulations COMMENT COMMENT This list is complementary of the original list provided with NASCAP. COMMENT It includes parameters derived from measurements performed under ESA contracts, COMMENT especially under ESA contract number 8539/89/TB. COMMENT ESA and the authors assume no legal liability or responsibility whatsoever, COMMENT for any damage or loss or damages users may sustain as a result of using these data. COMMENT Users use these data entirely at their own risk. COMMENT COMMENT List updated 12/4/94 by G.Drolshagen (ESA TOS-EMA) COMMENT COMMENT Most fits of SEE yield curves are based on DERTS measurements COMMENT of HIPPARCOS and ECS materials in the range 0-1500eV only ! COMMENT COMMENT Photoelectron yield set to 2.E-5 A m-2 where no better data COMMENT COMMENT Conservative values for bulk conductivity.In space most COMMENT dielectrics might be or become far more conductive COMMENT COMMENT Values for secondary ion yields highly uncertain COMMENT For conductors thickness is arbitrary COMMENT Properties 15--20 are just dummies COMMENT COMMENT COMMENT Material coated with ITO. Measured SEE yields were rather COMMENT independent of underlaying material. Average SEE value taken ITOC 1. 0.001 -1. 22. 2.5 0.3 50. 0.6 100. 1.6 0.49 123. 3.2E-5 -1. 10000. 2000. 1.E-13 1 1000 20 COMMENT Solar cell material COMMENT Cerium doped silicon with MgF2 coating CERS 3.8 500E-6 1.E-13 10. 5.5 0.8 70. .5 150. 1.65 0.244 230. 2.E-5 1.E15 10000. 9000. 1.E-13 1 1000 20 COMMENT Optical solar reflector without MgF2 coating COMMENT Cerium doped glass type MARECS/ECS COSR 3.8 150E-6 1E-13 10 3.5 .35 50. 0.6 200 1.9 0.244 230 2.E-5 1.E15 1E4 9E3 1E-13 1 1E3 20 COMMENT Thin layer of Epoxy resin on (conducting) Carbon fibre EPOX 3.5 2E-6 1.E-14 10 1.6 .35 75. 0.5 150 1.7 0.455 140 2.E-5 1.E14 1E4 9E3 1E-13 1 1E3 20 COMMENT Carbon fibre, conducting, no resin layer. CFRP 1. .001 -1. 6.34 .7 .3 110. 1.9 300 1.04 .413 135. .0000072 -1. 10000. 11000. 1.E-13 1. 1000. 20. COMMENT Non conductive black paint COMMENT SEE yields are as measured for Electrodag 501 BLKP 3.5 25.E-6 1.E-15 5 2.5 0.3 80 0.6 200 1.77 0.455 140 2.E-5 1.E+15 10000 11000 1.E-13 1 1000 20 COMMENT Non conductive black paint HERBERTS 1002-E COMMENT Values updated 3.10. 88 COMMENT Conduct. measured by ESTEC, SEE yield by DERTS BLKH 3.5 400.E-6 1.E-18 5 2. 0.25 70. 0.6 160 1.7 0.455 140 2.E-5 1.E+15 10000 11000 1.E-13 1 1000 20 COMMENT Conductive black paint Electrodag 501 BLKC 1. 0.001 -1 5 2.5 0.3 80 0.6 200 1.77 0.455 140 2.E-5 -1 10000 11000 1.E-13 1 1000 20 COMMENT White paint PCB-Z assumed to be conductive in space PCBZ 3.5 70.E-6 -1 5 2.2 .3 50. .5 100 1.55 .244 230. .00002 -1 10000. 2000. 17. 18. 19. 20. COMMENT White paint PSG 120 FD assumed to be conductive in space COMMENT Becomes conductive and FLUORESCENT under irradiation COMMENT SEE measurements by DERTS PSG1 3.5 70.E-6 -1 5 2.85 .25 50. .6 130 1.6 .244 230. .00002 -1 10000. 2000. 17. 18. 19. 20. COMMENT Kapton, average values for SEE COMMENT Usually more conductive under space irradiation KAPT 3.0 25E-6 1.E-15 5. 1.9 .2 70 .60 300 1.75 .455 140. .00002 1.E+15 10000. 2000. 17. 18. 19. 20. COMMENT Teflon, DERTS measurements of SEE TEFL 2.0 25E-6 1.E-15 7. 2.4 .25 45. .4 218. 1.72 .455 140. .00002 1.E+15 10000. 2000. 17. 18. 19. 20. COMMENT Generic Dielectric after 5 years in GEO environment COMMENT DERTS measurement show similar SEE yield curves for COMMENT different materials after contamination by UV,e,ions,outgassing COMMENT SEE yield :1 at E=1.5KeV CONT 3.5 100.E-6 1.E-11 5 2.2 0.25 70 0.6 150 1.8 0.455 140 2.E-5 1.E+15 10000 11000 1.E-13 1 1000 20 COMMENT Gold GOLD 1.00 .001 -1. 79. 1.3 .8 88.79 .92 53.48 1.73 .413 135. .000029 -1. 10000. 2000. 17. 18. 19. 20. COMMENT Silver as from NASCAP library SILV 1.00 .001 -1. 47. 1. .8 84.46 .82 79.43 1.74 .49 123. .000029 -1. 10000. 2000. 17. 18. 19. 20. COMMENT Oxydized Aluminium. SEE yields from DERTS for Aluminium/Kapton ALOX 1. .001 -1. 13. 3.2 .35 50 .6 100. 1.65 .244 230. .00004 -1. 10000. 2000. 17. 18. 19. 20. COMMENT Steel, SEE sigma +Emax from DERTS, curve shape from CONT material STEE 1.0 .001 -1. 26. 2.5 .25 70 .60 150. 1.8 .455 140. .00002 -1. 10000. 2000. 17. 18. 19. 20.