More info on

	http://reat.space.qinetiq.com/gps

-----------------------------------

test1.g4mac
-----------
point source, isotropic radiation, monoenergetic

test2.g4mac
-----------
square plane source, cosine-law radiation, linear energy

test3.g4mac
-----------
rectangular plane source, isotropic radiation, power-law energy
 
test4.g4mac
-----------
circular plane source, cosine-law radiation, exponential energy

test5.g4mac
-----------
elliptical plane source, isotropic radiation, bremsstrahlung energy

test6.g4mac
-----------
spherical surface source, isotropic radiation, black-body energy

test7.g4mac
-----------
cylindrical surface source, cosine-law radiation, Cosmic diffuse energy

test8.g4mac
-----------
elliptical surface source, isotropic radiation, linear energy

test9.g4mac
-----------
parallepiped surface source, isotropic radiation, linear energy

test10.g4mac
------------
spherical volume source, isotropic radiation, linear energy

test11.g4mac
------------
cylindrical volume source, isotropic radiation, power-law energy

test12.g4mac
------------
elliptical volume source, isotropic radiation, power-law energy

test13.g4mac
------------
parallelepiped volume source, cosine-law radiation, exponential energy

test14.g4mac
------------
rotated circular plane source, isotropic radiation, exponential energy

test15.g4mac
------------
rotated surface cylinder source, isotropic radiation, bremsstrahlung energy

test16.g4mac
------------
rotated parallelepiped volume source, isotropic radiation, bremsstrahlung energy

test17.g4mac
------------
confined spherical volume source, isotropic radiation, exponential energy

test18.g4mac
------------
square plane source, cosine-law radiation, user-defined energy histogram

test19.g4mac
------------
square plane source, cosine-law radiation, arbitrary point-wise energy function with linear interpolation.

test20.g4mac
------------
square plane source, cosine-law radiation, arbitrary point-wise energy function with logarithmic interpolation.

test21.g4mac
------------
square plane source, cosine-law radiation, arbitrary point-wise energy function with exponential interpolation.

test22.g4mac
------------
square plane source, cosine-law radiation, arbitrary point-wise energy function with spline interpolation.

test23.g4mac
------------
square plane source with x and y biasing, user-defined theta and phi distributions, user-defined EPN energy distribution.

test24.g4mac
------------
spherical volume source with z biasing, isotropic radiation with theta and phi biasing, arbitrary point-wise energy function with linear interpolation.

test25.g4mac
------------
spherical volume source, isotropic radiation with theta and phi biasing, user-defined energy histogram

test26.g4mac
------------
square plane source, cosine-law radiation with lower and upper theta and phi limits, linear energy with biasing.

test27.g4mac
------------
square plane source, user-defined theta, arbitrary point-wise energy function with linear interpolation.

test28.g4mac
------------
particle=ion, square plane source, isotropic radiation, monoenergetic energy.

test29.g4mac
------------
plane source of type annulus, cosine-law radiation, exponential energy

test30.g4mac
------------
rotated 1d beam source, Gaussian beam energy 

test31.g4mac
------------
two-beam incidence, i.e. multiple sources with relative intensities.
 
test32.g4mac
------------
Sphere volume source, with biasing in theta and phi
Isotropic directional distribution with theta and phi biasing

test33.g4mac
------------
Focused angular distribution.

test34.g4mac
------------
Two simultaneous sources, both fired at the same time. 
