ENDF reaction MT's and macroscopic reaction numbers
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Serpent uses standard ENDF reaction MT's to identify neutron and photon reactions. The number are used with detector response functions and printed in various output files. Detector responses also include macroscopic cross sections, identified by negative reaction numbers.
Below are descriptive lists of ENDF reaction MT's and macroscopic reaction numbers. For more information on the MT numbers, see the ENDF Format Manual.[1]
ENDF Reaction MT's
MT | Description | Notes |
---|---|---|
1 | total | |
2 | elastic scattering | |
3 | nonelastic | |
4 | total inelastic scattering | |
5 | anything | used for lumping together multiple reaction modes |
11 | (n,2nd) | |
16 | (n,2n) | |
17 | (n,3n) | |
18 | total fission | sum over all fission channels (MT's 19-21 and 38) |
19 | (n,f) | 1st-chance fission |
20 | (n,nf) | 2nd-chance fission |
21 | (n,2nf) | 3rd-chance fission |
22 | (n,nα) | |
23 | (n,n3α) | |
24 | (n,2nα) | |
25 | (n,3nα) | |
27 | absorption | |
28 | (n,np) | |
29 | (n,n2α) | |
30 | (n,2n2α) | |
32 | (n,nd) | |
33 | (n,nt) | |
34 | (n,n3He) | |
35 | (n,nd2α) | |
36 | (n,nt2α) | |
37 | (n,4n) | |
38 | (n,3nf) | 4th-chance fission |
41 | (n,2np) | |
42 | (n,3np) | |
44 | (n,n2p) | |
45 | (n,npα) | |
51 - 90 | inelastic scattering to excited states | |
91 | inelastic scattering to continuum | |
101 | total absorption | |
102 | (n,γ) | |
103 | (n,p) | |
104 | (n,d) | |
105 | (n,t) | |
106 | (n,3He) | |
107 | (n,α) | |
108 | (n,2α) | |
109 | (n,3α) | |
111 | (n,2p) | |
112 | (n,pα) | |
113 | (n,t2α) | |
114 | (n,d2α) | |
115 | (n,pd) | |
116 | (n,pt) | |
117 | (n,dα) | |
201 | total neutron production | |
202 | total photon production | |
203 | total proton production | |
204 | total deuteron production | |
205 | total triton production | |
206 | total 3He production | |
207 | total α production | |
301 | total heat production | |
443 | kinematic KERMA | |
444 | damage-energy production | |
600 | (n,p) to ground state | |
601 - 648 | (n,p) to excited states | jeejee |
649 | (n,p) to continuum | |
650 | (n,d) to ground state | |
651 - 698 | (n,d) to excited states | |
699 | (n,d) to continuum | |
700 | (n,p) to ground state | |
701 - 748 | (n,t) to excited states | |
749 | (n,t) to continuum | |
750 | (n,3He) to ground state | |
751 - 798 | (n,3He) to excited states | |
799 | (n,3He) to continuum | |
800 | (n,α) to ground state | |
801 - 848 | (n,α) to excited states | |
849 | (n,α) to continuum | |
875 | (n,2n) to ground state | |
876 - 890 | (n,2n) to excited states | |
891 | (n,2n) to continuum |
Macroscopic reaction numbers
References
- ^ Herman, M. and Trkov, A. "ENDF-6 Formats Manual." CSEWG Document ENDF-102 / BNL-90365-2009.