Apéndice I: Poder de frenado de partículas $\alpha$ en aire

Target = Air (gas)
Density = 1,3000E-03 g/cm3 = 5,2873E+19 atoms/cm3

Target Composition
Atom	Atom	Atomic	Mass	Ionization
Name	Numb	Percent	Percent	Potencial (V)
O	8	023,20	025,07	13,618
N	7	075,50	071,42	14,534
Ar	18	001,30	003,51	15,759

I (Bethe parameter) = 86 eV
Ion = Helium [2] , Mass = 4,003 amu
Stopping Units = keV / $\mu$m

Ion	dE/dx	dE/dx	Projected	Longitudinal	Lateral
Energy	Elec.	Nuclear	Range	Straggling	Straggling
500,00 keV	2,535E-01	4,710E-04	3,04 mm	239,41 $\mu$m	305,43 $\mu$m
600,00 keV	2,575E-01	4,050E-04	3,43 mm	245,16 $\mu$m	314,17 $\mu$m
700,00 keV	2,569E-01	3,562E-04	3,81 mm	250,49 $\mu$m	321,99 $\mu$m
800,00 keV	2,533E-01	3,186E-04	4,21 mm	258,56 $\mu$m	329,26 $\mu$m
900,00 keV	2,480E-01	2,886E-04	4,60 mm	266,53 $\mu$m	336,19 $\mu$m
1,00 MeV	2,416E-01	2,641E-04	5,01 mm	274,53 $\mu$m	342,94 $\mu$m
1,20 MeV	2,275E-01	2,263E-04	5,86 mm	290,96 $\mu$m	356,25 $\mu$m
1,40 MeV	2,134E-01	1,985E-04	6,77 mm	308,27 $\mu$m	369,72 $\mu$m
1,60 MeV	2,002E-01	1,771E-04	7,73 mm	326,66 $\mu$m	383,68 $\mu$m
1,80 MeV	1,882E-01	1,602E-04	8,76 mm	346,22 $\mu$m	398,32 $\mu$m
2,00 MeV	1,775E-01	1,463E-04	9,85 mm	382,83 $\mu$m	413,79 $\mu$m
2,25 MeV	1,657E-01	1,322E-04	11,31 mm	439,18 $\mu$m	434,45 $\mu$m
2,50 MeV	1,554E-01	1,207E-04	12,86 mm	495,78 $\mu$m	456,69 $\mu$m
2,75 MeV	1,464E-01	1,112E-04	14,52 mm	552,92 $\mu$m	480,61 $\mu$m
3,00 MeV	1,385E-01	1,031E-04	16,27 mm	610,76 $\mu$m	506,24 $\mu$m
3,50 MeV	1,252E-01	9,017E-05	20,07 mm	728,84 $\mu$m	562,73 $\mu$m
4,00 MeV	1,146E-01	8,026E-05	24,24 mm	850,27 $\mu$m	626,16 $\mu$m
4,50 MeV	1,052E-01	7,242E-05	28,79 mm	1,08 mm	696,59 $\mu$m
5,00 MeV	9,803E-02	6,604E-05	33,71 mm	1,29 mm	773,80 $\mu$m
5,50 MeV	9,190E-02	6,075E-05	38,97 mm	1,50 mm	857,29 $\mu$m
6,00 MeV	8,657E-02	5,628E-05	44,57 mm	1,71 mm	946,78 $\mu$m
7,00 MeV	7,776E-02	4,914E-05	56,76 mm	2,12 mm	1,14 mm
8,00 MeV	7,075E-02	4,368E-05	70,23 mm	2,87 mm	1,36 mm
9,00 MeV	6,501E-02	3,936E-05	84,97 mm	3,57 mm	1,60 mm
10,00 MeV	6,022E-02	3,586E-05	100,93 mm	4,25 mm	1,86 mm