Diff for "TypicalParticles"

Differences between revisions 2 and 4 (spanning 2 versions)

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

-  ⇤ ← Revision 2 as of 2010-08-11 21:58:13 → 
  Size: 1640
  Editor: KeithLofstrom
  Comment:
+   ← Revision 4 as of 2010-08-11 22:27:12 → ⇥
  Size: 2723
  Editor: KeithLofstrom
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 5:
-||<|3>                                                ||||      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    ||
||<-3> Radius of gyration (km)                                               ||
||   @ 500 km                                         || 0.6      || 50      ||
||   @ 20000 km                                       || 10       || 880     ||
||<-3> Gyration period (s)                                                   ||
||   @ 500 km                                         || 1E-5     || 7E-3    ||
||   @ 20000 km                                       || 2E-4     || 0.13    ||
||<-3> Bounce period (s)                                                     ||
|| @ 500 km                                           || 0.1      || 0.65    ||
|| @ 20000 km                                         || 0.3      || 1.7     ||
||<-3> Longitudinal drift period (min)                                       ||
|| @ 500 km                                           || 10       || 3       ||
|| @ 20000 km                                         || 3.5      || 1.1     ||
+||<|3>                                                  ||||      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    ||
||<-3> Radius of gyration (km)                                                 ||
||   @ 500 km                                           || 0.6      || 50      ||
||   @ 20000 km                                         || 10       || 880     ||
||<-3> Gyration period (s)                                                     ||
||   @ 500 km                                           || 1E-5     || 7E-3    ||
||   @ 20000 km                                         || 2E-4     || 0.13    ||
||<-3> Bounce period (s)                                                       ||
|| @ 500 km                                             || 0.1      || 0.65    ||
|| @ 20000 km                                           || 0.3      || 1.7     ||
||<-3> 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:

||||<|2>                           ||||        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 ||