Dosimeter Information for HEO/MCP/DSU
Dosimeters for MCP revision 10/23/2002
                 
HEO1 = F1 = DSU#1
Dome' Thickness Elect/Prot    
Dose Mils Be (Al) mm Be Ee (MeV) Ep (MeV) G, cm2 sr    
D1  111 (76) 2.81 E3; >1.5  P4; 20 - ?? 0.47    
D2  390 (267) 9.91 E4; >4.0  P5; 40 - ?? 0.47    
D3  682 (467) 17.3 E5; >6.5  P6; 55 - ?? 0.49    
D4  950 (651 ) 24.1 E6; >8.5  P7; 66 - ?? 0.49    
  The above are omnidirectional sensors    
  Elect/Prot Dose Counts to Dose
Telescope E1;>0.13 P1; >0.080 5.4 x 10-3 Dose(rads) = 1.0e-5 * counts
FOV = 15° cone E2;>0.23 P2; >0.160 5.4 x 10-3    
  P3; >0.320 5.4 x 10-3    
       
HEO2 = F2 = eDSU
Dome' Thickness Elect/Prot    
Dose Mils Be (Al) mm Be Ee (MeV) Ep (MeV) G, cm2 sr    
D1 31.7 (21.7) 0.81 E3; 0.7 P4;  10 - 20 0.45    
  The above is an omnidirectional sensor    
  Elect/Prot    
  G, cm2 sr    
Telescope E1;>0.13 P1; >0.080 5.4 x 10-3    
FOV = 15° cone E2;>0.23 P2; >0.160 5.4 x 10-3 Dose Counts to Dose
  P3; >0.320 5.4 x 10-3 Dose(rads) = 1.0e-5 * counts
     
  Elect/Prot    
  Ee (keV) Ep (keV) G, cm2 sr keV    
Plasma Analyzer 0.05 - 30 3.8 x 10-4    
FOV ~ 15° x 20° 0.04 - 23 1.7 x 10-3    
dE/E ~ 15%    
       
HEO3 = F3 = DSU#3
Dome' Thickness Elect/Prot    
Dose Mils Al mm Al Ee (MeV) Ep (MeV) G, cm2 sr    
D1 5 0.12 E3; >0.45 P4; > 5 * 0.4615    
D2 12 0.305 E4; >0.63 P5; 8.5 - 35 0.45 ?    
D3 49.5 1.26 E5; > 1.5 P6; 16 - 40 0.45 ?    
D4 125.5 3.19 E6; > 3.0 P7; 27 - 45 ** 0.45 ?    
  The above are omnidirectional sensors, except D1    
  * P4 has electron contamination ** P5 threshold problems    
  Elect/Prot Dose Counts to Dose
Telescope E1;>0.13 P1; >0.080 5.4 x 10-3 Dose(rads) = 1.0e-5 * counts
FOV = 15° cone E2;>0.23 P2; >0.160 5.4 x 10-3    
  P3; >0.320 5.4 x 10-3    
                 
All modifications in green made by Kirsten Lorentzen, 11/14/01 based on TRIM calculations for proton ranges, EGS4 calculations for electron thresholds (by Mark Looper) and GEANT calculations for HEO3 electron and proton thresholds (Mathias Cyamukungu).