Command directory path : /gps/ 

Guidance :
General Paricle Source control commands.

 Sub-directories : 
   /gps/source/   Multiple source control sub-directory
   /gps/pos/   Positional commands sub-directory
   /gps/ang/   Angular commands sub-directory
   /gps/ene/   Spectral commands sub-directory
   /gps/hist/   Histogram, biasing commands sub-directory
 Commands : 
   List * List available particles.
   particle * Set particle to be generated.
   direction * Set momentum direction.
   energy * Set kinetic energy.
   position * Set starting position of the particle for a Point like source.
   ion * Set properties of ion to be generated.
   ionLvl * Set properties of ion to be generated.
   time * Set initial time of the particle.
   polarization * Set polarization.
   number * Set number of particles to be generated per vertex.
   verbose * Set Verbose level for GPS 

Command /gps/List
Guidance :
List available particles.
 Invoke G4ParticleTable. 

Command /gps/particle
Guidance :
Set particle to be generated.
 (geantino is default)
 (ion can be specified for shooting ions)

Parameter : particleName
 Parameter type  : s
 Omittable       : True
 Default value   : geantino
 Candidates      : B+ B- B0 Bc+ Bc- Bs0 D+ D- D0 Ds+ Ds- GenericIon He3 J/psi N(1440)+ N(1440)0 N(1520)+ N(1520)0 N(1535)+ N(1535)0 N(1650)+ N(1650)0 N(1675)+ N(1675)0 N(1680)+ N(1680)0 N(1700)+ N(1700)0 N(1710)+ N(1710)0 N(1720)+ N(1720)0 N(1900)+ N(1900)0 N(1990)+ N(1990)0 N(2090)+ N(2090)0 N(2190)+ N(2190)0 N(2220)+ N(2220)0 N(2250)+ N(2250)0 Upsilon a0(1450)+ a0(1450)- a0(1450)0 a0(980)+ a0(980)- a0(980)0 a1(1260)+ a1(1260)- a1(1260)0 a2(1320)+ a2(1320)- a2(1320)0 alpha anti_B0 anti_Bs0 anti_D0 anti_He3 anti_N(1440)+ anti_N(1440)0 anti_N(1520)+ anti_N(1520)0 anti_N(1535)+ anti_N(1535)0 anti_N(1650)+ anti_N(1650)0 anti_N(1675)+ anti_N(1675)0 anti_N(1680)+ anti_N(1680)0 anti_N(1700)+ anti_N(1700)0 anti_N(1710)+ anti_N(1710)0 anti_N(1720)+ anti_N(1720)0 anti_N(1900)+ anti_N(1900)0 anti_N(1990)+ anti_N(1990)0 anti_N(2090)+ anti_N(2090)0 anti_N(2190)+ anti_N(2190)0 anti_N(2220)+ anti_N(2220)0 anti_N(2250)+ anti_N(2250)0 anti_alpha anti_b_quark anti_c_quark anti_d_quark anti_dd1_diquark anti_delta(1600)+ anti_delta(1600)++ anti_delta(1600)- anti_delta(1600)0 anti_delta(1620)+ anti_delta(1620)++ anti_delta(1620)- anti_delta(1620)0 anti_delta(1700)+ anti_delta(1700)++ anti_delta(1700)- anti_delta(1700)0 anti_delta(1900)+ anti_delta(1900)++ anti_delta(1900)- anti_delta(1900)0 anti_delta(1905)+ anti_delta(1905)++ anti_delta(1905)- anti_delta(1905)0 anti_delta(1910)+ anti_delta(1910)++ anti_delta(1910)- anti_delta(1910)0 anti_delta(1920)+ anti_delta(1920)++ anti_delta(1920)- anti_delta(1920)0 anti_delta(1930)+ anti_delta(1930)++ anti_delta(1930)- anti_delta(1930)0 anti_delta(1950)+ anti_delta(1950)++ anti_delta(1950)- anti_delta(1950)0 anti_delta+ anti_delta++ anti_delta- anti_delta0 anti_deuteron anti_k(1460)0 anti_k0_star(1430)0 anti_k1(1270)0 anti_k1(1400)0 anti_k2(1770)0 anti_k2_star(1430)0 anti_k2_star(1980)0 anti_k3_star(1780)0 anti_k_star(1410)0 anti_k_star(1680)0 anti_k_star0 anti_kaon0 anti_lambda anti_lambda(1405) anti_lambda(1520) anti_lambda(1600) anti_lambda(1670) anti_lambda(1690) anti_lambda(1800) anti_lambda(1810) anti_lambda(1820) anti_lambda(1830) anti_lambda(1890) anti_lambda(2100) anti_lambda(2110) anti_lambda_b anti_lambda_c+ anti_neutron anti_nu_e anti_nu_mu anti_nu_tau anti_omega- anti_omega_b- anti_omega_c0 anti_proton anti_s_quark anti_sd0_diquark anti_sd1_diquark anti_sigma(1385)+ anti_sigma(1385)- anti_sigma(1385)0 anti_sigma(1660)+ anti_sigma(1660)- anti_sigma(1660)0 anti_sigma(1670)+ anti_sigma(1670)- anti_sigma(1670)0 anti_sigma(1750)+ anti_sigma(1750)- anti_sigma(1750)0 anti_sigma(1775)+ anti_sigma(1775)- anti_sigma(1775)0 anti_sigma(1915)+ anti_sigma(1915)- anti_sigma(1915)0 anti_sigma(1940)+ anti_sigma(1940)- anti_sigma(1940)0 anti_sigma(2030)+ anti_sigma(2030)- anti_sigma(2030)0 anti_sigma+ anti_sigma- anti_sigma0 anti_sigma_b+ anti_sigma_b- anti_sigma_b0 anti_sigma_c+ anti_sigma_c++ anti_sigma_c0 anti_ss1_diquark anti_su0_diquark anti_su1_diquark anti_t_quark anti_triton anti_u_quark anti_ud0_diquark anti_ud1_diquark anti_uu1_diquark anti_xi(1530)- anti_xi(1530)0 anti_xi(1690)- anti_xi(1690)0 anti_xi(1820)- anti_xi(1820)0 anti_xi(1950)- anti_xi(1950)0 anti_xi(2030)- anti_xi(2030)0 anti_xi- anti_xi0 anti_xi_b- anti_xi_b0 anti_xi_c+ anti_xi_c0 b1(1235)+ b1(1235)- b1(1235)0 b_quark c_quark chargedgeantino d_quark dd1_diquark delta(1600)+ delta(1600)++ delta(1600)- delta(1600)0 delta(1620)+ delta(1620)++ delta(1620)- delta(1620)0 delta(1700)+ delta(1700)++ delta(1700)- delta(1700)0 delta(1900)+ delta(1900)++ delta(1900)- delta(1900)0 delta(1905)+ delta(1905)++ delta(1905)- delta(1905)0 delta(1910)+ delta(1910)++ delta(1910)- delta(1910)0 delta(1920)+ delta(1920)++ delta(1920)- delta(1920)0 delta(1930)+ delta(1930)++ delta(1930)- delta(1930)0 delta(1950)+ delta(1950)++ delta(1950)- delta(1950)0 delta+ delta++ delta- delta0 deuteron e+ e- eta eta(1295) eta(1405) eta(1475) eta2(1645) eta2(1870) eta_prime etac f0(1370) f0(1500) f0(1710) f0(500) f0(980) f1(1285) f1(1420) f2(1270) f2(1810) f2(2010) f2_prime(1525) gamma geantino gluon h1(1170) h1(1380) k(1460)+ k(1460)- k(1460)0 k0_star(1430)+ k0_star(1430)- k0_star(1430)0 k1(1270)+ k1(1270)- k1(1270)0 k1(1400)+ k1(1400)- k1(1400)0 k2(1770)+ k2(1770)- k2(1770)0 k2_star(1430)+ k2_star(1430)- k2_star(1430)0 k2_star(1980)+ k2_star(1980)- k2_star(1980)0 k3_star(1780)+ k3_star(1780)- k3_star(1780)0 k_star(1410)+ k_star(1410)- k_star(1410)0 k_star(1680)+ k_star(1680)- k_star(1680)0 k_star+ k_star- k_star0 kaon+ kaon- kaon0 kaon0L kaon0S lambda lambda(1405) lambda(1520) lambda(1600) lambda(1670) lambda(1690) lambda(1800) lambda(1810) lambda(1820) lambda(1830) lambda(1890) lambda(2100) lambda(2110) lambda_b lambda_c+ mu+ mu- neutron nu_e nu_mu nu_tau omega omega(1420) omega(1650) omega- omega3(1670) omega_b- omega_c0 opticalphoton phi phi(1680) phi3(1850) pi(1300)+ pi(1300)- pi(1300)0 pi+ pi- pi0 pi2(1670)+ pi2(1670)- pi2(1670)0 proton rho(1450)+ rho(1450)- rho(1450)0 rho(1700)+ rho(1700)- rho(1700)0 rho+ rho- rho0 rho3(1690)+ rho3(1690)- rho3(1690)0 s_quark sd0_diquark sd1_diquark sigma(1385)+ sigma(1385)- sigma(1385)0 sigma(1660)+ sigma(1660)- sigma(1660)0 sigma(1670)+ sigma(1670)- sigma(1670)0 sigma(1750)+ sigma(1750)- sigma(1750)0 sigma(1775)+ sigma(1775)- sigma(1775)0 sigma(1915)+ sigma(1915)- sigma(1915)0 sigma(1940)+ sigma(1940)- sigma(1940)0 sigma(2030)+ sigma(2030)- sigma(2030)0 sigma+ sigma- sigma0 sigma_b+ sigma_b- sigma_b0 sigma_c+ sigma_c++ sigma_c0 ss1_diquark su0_diquark su1_diquark t_quark tau+ tau- triton u_quark ud0_diquark ud1_diquark uu1_diquark xi(1530)- xi(1530)0 xi(1690)- xi(1690)0 xi(1820)- xi(1820)0 xi(1950)- xi(1950)0 xi(2030)- xi(2030)0 xi- xi0 xi_b- xi_b0 xi_c+ xi_c0 ion 

Command /gps/direction
Guidance :
Set momentum direction.
Direction needs not to be a unit vector.
Angular distribution type is set to planar.
 Range of parameters : Px != 0 || Py != 0 || Pz != 0

Parameter : Px
 Parameter type  : d
 Omittable       : False

Parameter : Py
 Parameter type  : d
 Omittable       : False

Parameter : Pz
 Parameter type  : d
 Omittable       : False 

Command /gps/energy
Guidance :
Set kinetic energy.

Parameter : Energy
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : GeV
 Candidates      : eV keV MeV GeV TeV PeV J electronvolt kiloelectronvolt megaelectronvolt gigaelectronvolt teraelectronvolt petaelectronvolt joule 

Command /gps/position
Guidance :
Set starting position of the particle for a Point like source.
Same effect as the two /gps/pos/type Point /gps/pos/centre commands.

Parameter : X
 Parameter type  : d
 Omittable       : False

Parameter : Y
 Parameter type  : d
 Omittable       : False

Parameter : Z
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : cm
 Candidates      : pc km m cm mm um nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi 

Command /gps/ion
Guidance :
Set properties of ion to be generated.
[usage] /gps/ion Z A Q E
        Z:(int) AtomicNumber
        A:(int) AtomicMass
        Q:(int) Charge of Ion (in unit of e)
        E:(double) Excitation energy (in keV)

Parameter : Z
 Parameter type  : i
 Omittable       : False
 Default value   : 1

Parameter : A
 Parameter type  : i
 Omittable       : False
 Default value   : 1

Parameter : Q
 Parameter type  : i
 Omittable       : True
 Default value   : 0

Parameter : E
 Parameter type  : d
 Omittable       : True
 Default value   : 0.0 

Command /gps/ionLvl
Guidance :
Set properties of ion to be generated.
[usage] /gps/ion Z A Q Lvl
        Z:(int) AtomicNumber
        A:(int) AtomicMass
        Q:(int) Charge of Ion (in unit of e)
        Lvl:(int) Number of metastable state excitation level (0-9)

Parameter : Z
 Parameter type  : i
 Omittable       : False
 Default value   : 1

Parameter : A
 Parameter type  : i
 Omittable       : False
 Default value   : 1

Parameter : Q
 Parameter type  : i
 Omittable       : True
 Default value   : 0

Parameter : Lvl
 Parameter type  : i
 Omittable       : True
 Default value   : 0.0 

Command /gps/time
Guidance :
Set initial time of the particle.

Parameter : t0
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : ns
 Candidates      : s ms us ns ps second millisecond microsecond nanosecond picosecond 

Command /gps/polarization
Guidance :
Set polarization.
 Range of parameters : Px>=-1.&&Px<=1.&&Py>=-1.&&Py<=1.&&Pz>=-1.&&Pz<=1.

Parameter : Px
 Parameter type  : d
 Omittable       : False

Parameter : Py
 Parameter type  : d
 Omittable       : False

Parameter : Pz
 Parameter type  : d
 Omittable       : False 

Command /gps/number
Guidance :
Set number of particles to be generated per vertex.
 Range of parameters : N>0

Parameter : N
 Parameter type  : i
 Omittable       : False 

Command /gps/verbose
Guidance :
Set Verbose level for GPS
 0 : Silent
 1 : Limited information
 2 : Detailed information
 Range of parameters : level>=0 && level <=2

Parameter : level
 Parameter type  : i
 Omittable       : False

Command directory path : /gps/source/ 
Guidance :
Multiple source control sub-directory

 Sub-directories : 
 Commands : 
   add * add a new source defintion to the particle gun with the specified intensity
   list * List the defined particle sources
   clear * Remove all the defined particle sources
   show * Show the current source index and intensity
   set * set the indexed source as the current one
   delete * delete the indexed source from the list
   intensity * reset the current source to the specified intensity
   multiplevertex * true for simulaneous generation mutiple vertex
   flatsampling * true for applying flat (biased) sampling among the sources 
Command /gps/source/add
Guidance :
add a new source defintion to the particle gun with the specified intensity
 Range of parameters : addsource > 0.

Parameter : addsource
 Parameter type  : d
 Omittable       : False 

Command /gps/source/list
Guidance :
List the defined particle sources 

Command /gps/source/clear
Guidance :
Remove all the defined particle sources 

Command /gps/source/show
Guidance :
Show the current source index and intensity 

Command /gps/source/set
Guidance :
set the indexed source as the current one
  so one can change its source definition
 Range of parameters : setsource >= 0

Parameter : setsource
 Parameter type  : i
 Omittable       : False 

Command /gps/source/delete
Guidance :
delete the indexed source from the list
 Range of parameters : deletesource > 0

Parameter : deletesource
 Parameter type  : i
 Omittable       : False 

Command /gps/source/intensity
Guidance :
reset the current source to the specified intensity
 Range of parameters : setintensity > 0.

Parameter : setintensity
 Parameter type  : d
 Omittable       : False 

Command /gps/source/multiplevertex
Guidance :
true for simulaneous generation mutiple vertex
Default is false

Parameter : multiplevertex
 Parameter type  : b
 Omittable       : True
 Default value   : 0

Command /gps/source/flatsampling
Guidance :
true for applying flat (biased) sampling among the sources
Default is false

Parameter : flatsampling
 Parameter type  : b
 Omittable       : True
 Default value   : 0

Command directory path : /gps/pos/ 

Guidance :
Positional commands sub-directory

 Sub-directories : 
 Commands : 
   type * Sets source distribution type.
   shape * Sets source shape for Plan, Surface or Volume type source.
   centre * Set centre coordinates of source.
   rot1 * Set the 1st vector defining the rotation matrix'.
   rot2 * Set the 2nd vector defining the rotation matrix'.
   halfx * Set x half length of source.
   halfy * Set y half length of source.
   halfz * Set z half length of source.
   radius * Set radius of source.
   inner_radius * Set inner radius of source when required.
   sigma_r * Set standard deviation in radial of the beam positional profile
   sigma_x * Set standard deviation of beam positional profile in x-dir
   sigma_y * Set standard deviation of beam positional profile in y-dir
   paralp * Angle from y-axis of y' in Para
   parthe * Polar angle through centres of z faces
   parphi * Azimuth angle through centres of z faces
   confine * Confine source to volume (NULL to unset). 

Command /gps/pos/type
Guidance :
Sets source distribution type.
Either Point, Beam, Plane, Surface or Volume

Parameter : DisType
 Parameter type  : s
 Omittable       : False
 Default value   : Point
 Candidates      : Point Beam Plane Surface Volume 

Command /gps/pos/shape
Guidance :
Sets source shape for Plan, Surface or Volume type source.

Parameter : Shape
 Parameter type  : s
 Omittable       : False
 Default value   : NULL
 Candidates      : Circle Annulus Ellipse Square Rectangle Sphere Ellipsoid Cylinder EllipticCylinder Para 

Command /gps/pos/centre
Guidance :
Set centre coordinates of source.

Parameter : X
 Parameter type  : d
 Omittable       : False

Parameter : Y
 Parameter type  : d
 Omittable       : False

Parameter : Z
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : cm
 Candidates      : pc km m cm mm um nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi 

Command /gps/pos/rot1
Guidance :
Set the 1st vector defining the rotation matrix'.
It does not need to be a unit vector.
 Range of parameters : R1x != 0 || R1y != 0 || R1z != 0

Parameter : R1x
 Parameter type  : d
 Omittable       : False

Parameter : R1y
 Parameter type  : d
 Omittable       : False

Parameter : R1z
 Parameter type  : d
 Omittable       : False 

Command /gps/pos/rot2
Guidance :
Set the 2nd vector defining the rotation matrix'.
It does not need to be a unit vector.
 Range of parameters : R2x != 0 || R2y != 0 || R2z != 0

Parameter : R2x
 Parameter type  : d
 Omittable       : False

Parameter : R2y
 Parameter type  : d
 Omittable       : False

Parameter : R2z
 Parameter type  : d
 Omittable       : False 

Command /gps/pos/halfx
Guidance :
Set x half length of source.

Parameter : Halfx
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : cm
 Candidates      : pc km m cm mm um nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi 

Command /gps/pos/halfy
Guidance :
Set y half length of source.

Parameter : Halfy
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : cm
 Candidates      : pc km m cm mm um nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi 

Command /gps/pos/halfz
Guidance :
Set z half length of source.

Parameter : Halfz
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : cm
 Candidates      : pc km m cm mm um nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi 

Command /gps/pos/radius
Guidance :
Set radius of source.

Parameter : Radius
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : cm
 Candidates      : pc km m cm mm um nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi 

Command /gps/pos/inner_radius
Guidance :
Set inner radius of source when required.

Parameter : Radius0
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : cm
 Candidates      : pc km m cm mm um nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi 

Command /gps/pos/sigma_r
Guidance :
Set standard deviation in radial of the beam positional profile
 applicable to Beam type source only

Parameter : Sigmar
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : cm
 Candidates      : pc km m cm mm um nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi 

Command /gps/pos/sigma_x
Guidance :
Set standard deviation of beam positional profile in x-dir
 applicable to Beam type source only

Parameter : Sigmax
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : cm
 Candidates      : pc km m cm mm um nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi 

Command /gps/pos/sigma_y
Guidance :
Set standard deviation of beam positional profile in y-dir
 applicable to Beam type source only

Parameter : Sigmay
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : cm
 Candidates      : pc km m cm mm um nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi 

Command /gps/pos/paralp
Guidance :
Angle from y-axis of y' in Para

Parameter : paralp
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : rad
 Candidates      : rad mrad deg radian milliradian degree 

Command /gps/pos/parthe
Guidance :
Polar angle through centres of z faces

Parameter : parthe
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : rad
 Candidates      : rad mrad deg radian milliradian degree 

Command /gps/pos/parphi
Guidance :
Azimuth angle through centres of z faces

Parameter : parphi
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : rad
 Candidates      : rad mrad deg radian milliradian degree 

Command /gps/pos/confine
Guidance :
Confine source to volume (NULL to unset).
usage: confine VolName

Parameter : VolName
 Parameter type  : s
 Omittable       : False
 Default value   : NULL

Command directory path : /gps/ang/ 

Guidance :
Angular commands sub-directory

 Sub-directories : 
 Commands : 
   type * Sets angular source distribution type
   rot1 * Sets the 1st vector for angular distribution rotation matrix
   rot2 * Sets the 2nd vector for angular distribution rotation matrix
   mintheta * Set minimum theta
   maxtheta * Set maximum theta
   minphi * Set minimum phi
   maxphi * Set maximum phi
   sigma_r * Set standard deviation in direction for 1D beam.
   sigma_x * Set standard deviation in direction in x-direc. for 2D beam
   sigma_y * Set standard deviation in direction in y-direc. for 2D beam
   focuspoint * Set the focusing point for the beam
   user_coor * true for using user defined angular co-ordinates
   surfnorm * Makes a user-defined distribution with respect to surface normals rather than x,y,z axes. 

Command /gps/ang/type
Guidance :
Sets angular source distribution type
Possible variables are: iso, cos, planar, beam1d, beam2d, focused or user

Parameter : AngDis
 Parameter type  : s
 Omittable       : False
 Default value   : iso
 Candidates      : iso cos planar beam1d beam2d focused user 

Command /gps/ang/rot1
Guidance :
Sets the 1st vector for angular distribution rotation matrix
Need not be a unit vector
 Range of parameters : AR1x != 0 || AR1y != 0 || AR1z != 0

Parameter : AR1x
 Parameter type  : d
 Omittable       : False

Parameter : AR1y
 Parameter type  : d
 Omittable       : False

Parameter : AR1z
 Parameter type  : d
 Omittable       : False 

Command /gps/ang/rot2
Guidance :
Sets the 2nd vector for angular distribution rotation matrix
Need not be a unit vector
 Range of parameters : AR2x != 0 || AR2y != 0 || AR2z != 0

Parameter : AR2x
 Parameter type  : d
 Omittable       : False

Parameter : AR2y
 Parameter type  : d
 Omittable       : False

Parameter : AR2z
 Parameter type  : d
 Omittable       : False 

Command /gps/ang/mintheta
Guidance :
Set minimum theta

Parameter : MinTheta
 Parameter type  : d
 Omittable       : False
 Default value   : 0

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : rad
 Candidates      : rad mrad deg radian milliradian degree 

Command /gps/ang/maxtheta
Guidance :
Set maximum theta

Parameter : MaxTheta
 Parameter type  : d
 Omittable       : False
 Default value   : 3.14159

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : rad
 Candidates      : rad mrad deg radian milliradian degree 

Command /gps/ang/minphi
Guidance :
Set minimum phi

Parameter : MinPhi
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : rad
 Candidates      : rad mrad deg radian milliradian degree 

Command /gps/ang/maxphi
Guidance :
Set maximum phi

Parameter : MaxPhi
 Parameter type  : d
 Omittable       : False
 Default value   : 3.14159

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : rad
 Candidates      : rad mrad deg radian milliradian degree 

Command /gps/ang/sigma_r
Guidance :
Set standard deviation in direction for 1D beam.

Parameter : Sigmara
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : rad
 Candidates      : rad mrad deg radian milliradian degree 

Command /gps/ang/sigma_x
Guidance :
Set standard deviation in direction in x-direc. for 2D beam

Parameter : Sigmaxa
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : rad
 Candidates      : rad mrad deg radian milliradian degree 

Command /gps/ang/sigma_y
Guidance :
Set standard deviation in direction in y-direc. for 2D beam

Parameter : Sigmaya
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : rad
 Candidates      : rad mrad deg radian milliradian degree 

Command /gps/ang/focuspoint
Guidance :
Set the focusing point for the beam

Parameter : x
 Parameter type  : d
 Omittable       : False

Parameter : y
 Parameter type  : d
 Omittable       : False

Parameter : z
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : cm
 Candidates      : pc km m cm mm um nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi 

Command /gps/ang/user_coor
Guidance :
true for using user defined angular co-ordinates
Default is false

Parameter : useuserangaxis
 Parameter type  : b
 Omittable       : True
 Default value   : 0 

Command /gps/ang/surfnorm
Guidance :
Makes a user-defined distribution with respect to surface normals rather than x,y,z axes.
Default is false

Parameter : surfnorm
 Parameter type  : b
 Omittable       : True
 Default value   : 0

Command directory path : /gps/ene/ 

Guidance :
Spectral commands sub-directory

 Sub-directories : 
 Commands : 
   type * Sets energy distribution type
   min * Sets minimum energy
   max * Sets maximum energy
   mono * Sets a monocromatic energy (same as  gps/energy)
   sigma * Sets the standard deviation for Gaussian energy dist.
   alpha * Sets Alpha (index) for power-law energy dist.
   temp * Sets the temperature for Brem and BBody distributions (in Kelvin)
   ezero * Sets E_0 for exponential distribution (in MeV)
   gradient * Sets the gradient for Lin distribution (in 1/MeV)
   intercept * Sets the intercept for Lin distributions (in MeV)
   biasAlpha * Set the power-law index for the energy sampling distri. )
   calculate * Calculates the distributions for Cdg and BBody
   emspec * True for energy and false for momentum spectra
   diffspec * True for differential and flase for integral spectra 

Command /gps/ene/type
Guidance :
Sets energy distribution type

Parameter : EnergyDis
 Parameter type  : s
 Omittable       : False
 Default value   : Mono
 Candidates      : Mono Lin Pow Exp CPow Gauss Brem Bbody Cdg User Arb Epn 

Command /gps/ene/min
Guidance :
Sets minimum energy

Parameter : emin
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : keV
 Candidates      : eV keV MeV GeV TeV PeV J electronvolt kiloelectronvolt megaelectronvolt gigaelectronvolt teraelectronvolt petaelectronvolt joule 

Command /gps/ene/max
Guidance :
Sets maximum energy

Parameter : emax
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : keV
 Candidates      : eV keV MeV GeV TeV PeV J electronvolt kiloelectronvolt megaelectronvolt gigaelectronvolt teraelectronvolt petaelectronvolt joule 

Command /gps/ene/mono
Guidance :
Sets a monocromatic energy (same as  gps/energy)

Parameter : monoenergy
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : keV
 Candidates      : eV keV MeV GeV TeV PeV J electronvolt kiloelectronvolt megaelectronvolt gigaelectronvolt teraelectronvolt petaelectronvolt joule 

Command /gps/ene/sigma
Guidance :
Sets the standard deviation for Gaussian energy dist.

Parameter : Sigmae
 Parameter type  : d
 Omittable       : False

Parameter : Unit
 Parameter type  : s
 Omittable       : True
 Default value   : keV
 Candidates      : eV keV MeV GeV TeV PeV J electronvolt kiloelectronvolt megaelectronvolt gigaelectronvolt teraelectronvolt petaelectronvolt joule 

Command /gps/ene/alpha
Guidance :
Sets Alpha (index) for power-law energy dist.

Parameter : alpha
 Parameter type  : d
 Omittable       : False 

Command /gps/ene/temp
Guidance :
Sets the temperature for Brem and BBody distributions (in Kelvin)

Parameter : temp
 Parameter type  : d
 Omittable       : False 

Command /gps/ene/ezero
Guidance :
Sets E_0 for exponential distribution (in MeV)

Parameter : ezero
 Parameter type  : d
 Omittable       : False 

Command /gps/ene/gradient
Guidance :
Sets the gradient for Lin distribution (in 1/MeV)

Parameter : gradient
 Parameter type  : d
 Omittable       : False 

Command /gps/ene/intercept
Guidance :
Sets the intercept for Lin distributions (in MeV)

Parameter : intercept
 Parameter type  : d
 Omittable       : False 

Command /gps/ene/biasAlpha
Guidance :
Set the power-law index for the energy sampling distri. )

Parameter : arbeint
 Parameter type  : d
 Omittable       : False 

Command /gps/ene/calculate
Guidance :
Calculates the distributions for Cdg and BBody 

Command /gps/ene/emspec
Guidance :
True for energy and false for momentum spectra

Parameter : energyspec
 Parameter type  : b
 Omittable       : True
 Default value   : 1 

Command /gps/ene/diffspec
Guidance :
True for differential and flase for integral spectra

Parameter : diffspec
 Parameter type  : b
 Omittable       : True
 Default value   : 1

Command directory path : /gps/hist/ 

Guidance :
Histogram, biasing commands sub-directory

 Sub-directories : 
 Commands : 
   type * Sets histogram type
   reset * Reset (clean) the histogram 
   point * Allows user to define a histogram
   file * import the arb energy hist in an ASCII file
   inter * Sets the interpolation method for arbitrary distribution. 

Command /gps/hist/type
Guidance :
Sets histogram type

Parameter : HistType
 Parameter type  : s
 Omittable       : False
 Default value   : biasx
 Candidates      : biasx biasy biasz biast biasp biase biaspt biaspp theta phi energy arb epn 

Command /gps/hist/reset
Guidance :
Reset (clean) the histogram 

Parameter : HistType
 Parameter type  : s
 Omittable       : False
 Default value   : energy
 Candidates      : biasx biasy biasz biast biasp biase biaspt biaspp theta phi energy arb epn 

Command /gps/hist/point
Guidance :
Allows user to define a histogram
Enter: Ehi Weight
 Range of parameters : Ehi >= 0. && Weight >= 0.

Parameter : Ehi
 Parameter type  : d
 Omittable       : True
 Default value   : taken from the current value

Parameter : Weight
 Parameter type  : d
 Omittable       : True
 Default value   : taken from the current value

Parameter : Junk
 Parameter type  : d
 Omittable       : True
 Default value   : taken from the current value 

Command /gps/hist/file
Guidance :
import the arb energy hist in an ASCII file

Parameter : HistFile
 Parameter type  : s
 Omittable       : False 

Command /gps/hist/inter
Guidance :
Sets the interpolation method for arbitrary distribution.

Parameter : int
 Parameter type  : s
 Omittable       : False
 Default value   : Lin
 Candidates      : Lin Log Exp Spline