The Australian National University
Department of Nuclear Physics
Research School of Physics and Engineering
document location: http://bricc.anu.edu.au//bricc-datatables.php
BrIcc Data Tables BrIcc v2.3S and BrIcc v2.3G
Conversion Coefficient Calculator based on commonly used data tables
  • BrIccFO (default & recommended) - 'Frozen Orbitals' approximation to take into account the effect of the hole.
  • BrIccNH - 'No Hole' approximation which ignores the effect of the hole.
  • HsIcc - Hager-Seltzer and Dragoun et al. tables.
  • RpIcc - Rösel et al. tables.

BrIccFO & BrIccNH data sets

Data Table Reference Z Shells or IPF L Transition energy [keV]a
Internal Conversion Coefficient (ICC)
BrIccFO Based on the model using the 'Frozen Orbitals' approximation of 2002Ba85 and 2002Ra45 5–110 All shells 1–5 εic+1–6000
BrIccNH Based on the model using the 'No Hole' approximation of 2002Ba85 and 2002Ra45 5–110 All shells 1–5 εic+1–6000
Pair Conversion Coefficient (PCC)
ScPcc 1979Sc31 0–100b IPF 1–3 1100–8000
HoPcc 1996Ho21 50–100 IPF 1–3 1100–8000
Electronic factor Ω(E0)c
HsOmg 1969Ha61 30–42 Kd,L1e,L2f 0 εic+6–1500
BeOmg 1970Be87 40–102 K 0 51f–2555
40–102 L1,L2 0 51–2555
PaOmg 1986PaZM 8–40 Ke 0 511–12775
8–40 IPF 0 1431–12775
a εic is the binding energy for the ic-shell
b Used for Z < 50
c Electronic factors are only calculated for even Z values at present
d Not used
e Used for Z < 40
f For Z=40–58: 51.1 keV; for Z=60–82: 102.2 keV; for Z=84–96: 153.3 keV and for Z=98–102: 204.4 keV

HsIcc data set

Data Table Reference Z Shells L Transition energy [keV] a
Internal Conversion Coefficient (ICC) i
HsIcc Based on the Hager and Seltzer 1968Ha53 and Dragoun et al. 1971Dr11 tables 30–103 K, L, M
and N+ shellsg
1–4 εic+1–1500h
g For K-, L-, and M-shells: Z=30–103; for N+ shell Z=37–100
h For K-shell: εic+1 – 1500(1650) keV; for L-shell: εic+1 – 1000(1550) keV; for M-shell: εic+1 – 150(510) keV;
  for N+ shell: 50 – 500 keV
i K-, L- and M-shell ICC values for L=3 and 4 multipolarities have not been scaled as recommended by 1990Ne01.
  ICC values should be multiplied by 0.975 (10) for L=3 and 0.975 (5) for L=4 to agree with values from HsIcc.

RpIcc data set

Data Table Reference Z Shells L Transition energy [keV]a
Internal Conversion Coefficient (ICC)
RpIcc Based on the Rösel et al. 1978Ro21 and 1978Ro22 tables 30–104 All shells 1–4 εic+2–3000h
h For K-shell: εic+2 – 3000(5000) keV; for L-shell: εic+2 – 1500 keV; for M-, N-, O-, P- and Q-shells: εic+2 – 500(1500) keV