Evaluate the positron range from ion source.

First version:
- only F18 for the moment
- need option "trackLength" in PhaseSpace (Gate version > 2021)

https://ejnmmiphys.springeropen.com/articles/10.1186/s40658-016-0144-5/tables/1

Table 1 Properties of pure positron emission radioisotopes. Data from the National Institute of Standards and Technology [14], Laboratoire National Henri Becquerel [15], and Brookhaven National Laboratory [16]. Range of positrons is in water [14]
From: Physics of pure and non-pure positron emitters for PET: a review and a discussion
Isotope	Half-life	β+%	    E max 	E mean 	Rmax    Rmean
11C	    20.4 min	99.8	0.960	0.386	4.2	    1.2
13N	    10.0 min	99.8	1.199	0.492	5.5	    1.8
15O	    2 min	    99.9	1.732	0.735	8.4	    3.0
18F	    110 min	    96.9	0.634	0.250	2.4	    0.6
64Cu	12.7 h	    17.5	0.653	0.278	2.5	    0.7
89Zr	78.4 h	    22.7	0.902	0.396	3.8	    1.3