Photoelectric effect Bank

The banks connected to the photoelectric effect are created during initialisation for each tracking medium. PHXS bank (data area) The total cross-section values are stored in PHOT bank in energy bins set within the array ELOW (common CGMULO). This bank is pointed by JPHOT link. The first structural link of PHOT supports the PHXS bank. For each energy interval of the cross-section we store the upper limit of the interval and four constants of equation (). For each chemical element used to build the medium a PHFN bank is created. This bank, pointed by a structural link of the PHXS bank, contains the data needed for the photoelectric effect final state simulation. All data word are of the Fortran REAL type. The descriptions of the PHXS and PHFN banks are given below.

2cPHXSbank (data area)
1cWord #	1cDescription
1	NZ-number of chemical elements of the medium
2$\to$ NZ+1	atomic numbers of the elements
NZ+2$\to$ 2*NZ+1	not used at present
2*NZ+2$\to$ 3*NZ+1	weights of the cross-section constants
3*NZ+2	NIT-number of the cross-section intervals
3*NZ+3$\to$ 1+3*NZ+1+5*NIT	the total cross-section constants

2cPHFNbank (data area)
1cWord #	1cDescription
1	NIE-number of intervals for an element
2$\to$ NIE*5+1	the element cross-section constants
NIE*5+2	number of shells used. At present always 4
NIE*5+3$\to$ NIE*5+6	binding energies of $K$ , $L$I , $L$II and $L$III shells
NIE*5+7$\to$ NIE*5+10	probability of the radiative shell decay
NIE*5+11	pointer to the radiative decays of $K$ shell KRD
NIE*5+12	pointer to the radiative decays of $L$I shell L1RD
NIE*5+13	pointer to the radiative decays of $L$II shell L2RD
NIE*5+14	pointer to the radiative decays of $L$III L3RD
NIE*5+15	pointer to the non-radiative decays of $K$ shell KNRD
NIE*5+16	pointer to the non-radiative decays of $L$I shell L1NRD
NIE*5+17	pointer to the non-radiative decays of $L$II shell L2NRD
NIE*5+18	pointer to the non-radiative decays of $L$III shell L3NRD
KRD	number of $K$ shell radiative decay modes NRDK
KRD+1$\to$ KRD+1+NRDK	$K$ shell decay mode probability
KRD+1+NRDK$\to$ KRD+1+2*NRDK	$K$ shell transition energies
L1RD	number of $L$I shell radiative decay modes NRDL1
L1RD+1$\to$ L1RD+1+NRDL1	$L$I shell decay mode probability
L1RD+1+NRDL1$\to$ L1RD+1+2*NRDL1	$L$I shell transition energies
L2RD	number of $L$I shell radiative decay modes NRDL2
L2RD+1$\to$ L2RD+1+NRDL2	$L$II shell decay mode probability
L2RD+1+NRDL2$\to$ L2RD+1+2*NRDL2	$L$II shell transition energies
L3RD	number of $L$I shell radiative decay modes NRDL3
L3RD+1$\to$ L3RD+1+NRDK	$L$III shell decay mode probability
L3RD+1+NRDL3$\to$ L3RD+1+2*NRDL3	$L$III shell transition energies
KNRD	number of $K$ shell radiative decay modes RDK = 1
KNRD+1$\to$ KNRD+1+RDK	$K$ shell decay mode probability
KNRD+1+RDK$\to$ KNRD+1+2*RDK	$K$ shell transition energies
L1NRD	number of $L$I shell radiative decay modes RDL1 = 1
L1NRD+1$\to$ L1RD+1+RDL1	$L$I shell decay mode probability
L1NRD+1+RDL1$\to$ L1RD+1+2*RDL1	$L$I shell transition energies
L2NRD	number of $L$I shell radiative decay modes RDL2 = 1
L2NRD+1$\to$ L2RD+1+NRDK	$L$II shell decay mode probability

2cPHFNbank (data area, continued)
1cWord #	1cDescription
L2NRD+1+RDL2$\to$ L2RD+1+2*RDL2	$L$II shell transition energies
L3NRD	number of $L$I shell radiative decay modes RDL3 = 1
L3NRD+1$\to$ L3RD+1+RDL3	$L$III shell decay mode probability
L3NRD+1+RDL3$\to$ L3RD+1+2*NRDL3	$L$III shell transition energies

PHYS231