|
Size: 2529
Comment:
|
Size: 2723
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 24: | Line 24: |
| Constants | Constants: |
| Line 28: | Line 28: |
| || Joules per MeV || J/MeV || 1.6021E-13 || | || Joules per MeV || J/MeV || 1.6021E-13 || |
| Line 41: | Line 41: |
| || |
|| Lorentz Factor || || 2.9569 || 1.0107 || || Velocity || m/s || 2.8213E+08 || 4.3422E+07 || || "Relativistic Mass" || kg || 2.6935E-30 || 1.6904E-27 || |
Characteristics of typical radiation belt charged particles
The following table appears in [1][2][3] . The gyration numbers seem to be incorrect for the 500km altitude.
|
Particle |
|
1 MeV |
10 MeV |
|
electron |
proton |
|
Range in aluminium (mm) |
2 |
0.4 |
Peak equatorial omni-directional flux (cm-2 s-1) |
4E6 |
3.4E5 |
Radial location (L) of peak flux (Earth-radii) |
4.4 |
1.7 |
Radius of gyration (km) |
||
@ 500 km |
0.6 |
50 |
@ 20000 km |
10 |
880 |
Gyration period (s) |
||
@ 500 km |
1E-5 |
7E-3 |
@ 20000 km |
2E-4 |
0.13 |
Bounce period (s) |
||
@ 500 km |
0.1 |
0.65 |
@ 20000 km |
0.3 |
1.7 |
Longitudinal drift period (min) |
||
@ 500 km |
10 |
3 |
@ 20000 km |
3.5 |
1.1 |
Constants:
B_0_ Magnetic field constant |
Tesla |
3.0037E-05 |
Unit charge |
Colombs |
1.6021E-19 |
Joules per MeV |
J/MeV |
1.6021E-13 |
Re Earth radius |
m |
6378210.00 |
C Speed of Light |
m/s |
2.9979E+08 |
Let's compute some more numbers at 500km altitude:
|
Particle |
||
electron |
proton |
||
Kinetic Energy |
MeV |
1 |
10 |
Kinetic Energy |
J |
1.6021E-13 |
|
Mass |
kg |
9.1094E-31 |
1.6726E-27 |
Mass Energy |
J |
8.1871E-14 |
1.5033E-10 |
Relativistic Momentum |
kg m/s |
7.5991E-22 |
7.3403E-20 |
Lorentz Factor |
|
2.9569 |
1.0107 |
Velocity |
m/s |
2.8213E+08 |
4.3422E+07 |
"Relativistic Mass" |
kg |
2.6935E-30 |
1.6904E-27 |