NEA-1544 ZZ-GEFF-2-MATXS.

1. NAME OR DESIGNATION OF PROGRAM:  ZZ-GEFF-2-MATXS.

3. DESCRIPTION OF PROGRAM OR FUNCTION

This library for fusion neutronics calculations, to be used in conjunction with the TRANSX code, is the MATXS format version of ZZ-GEFF-2-GENDF from which it has been derived by means of the MATXSR NJOY module. It has a 175 neutron, 42 photon VITAMIN-J group structure with the standard weighting function: Maxwellian (at the temperature to which the material is referenced) + 1/E + fission spectrum + 1/E + fusion peak + 1/E. It includes 93 materials from 1-H-1 to Bi-209 - almost all from EFF-2 basic data; but Ag-107, Ag-109, natural Cd, the 6 Hf isotopes and the 4 W isotopes have been taken from JEF-2.2 - at 3
temperatures and 6 dilution cross section values; 10 thermal groups  are provided below 3 eV. Neutron cross sections and diffusion matrices, photon and gas production, kerma and DPA are given. The library includes H in H2O, metallic Be and Graphite for which an accurate treatment with S(alpha,beta) matrices has been provided for the thermal scattering region, while all remaining materials have been treated with the 'free gas' approximation.
Photon interaction data are taken from GEPDL - which is included in  ZZ-GEFF-2-GENDF - a 42 group photon interaction P8 library based upon EPDL-90; in order to couple this photon section - GEPDL - which is P8, with the neutron part - GEFF-2 - which is P5, the latter has  been filled with zeroes for the contribution P6 to P8.

4. METHOD OF SOLUTION

NJOY has been used to process both GEFF-2 and GEPDL; since the processing activities lasted over a couple of years, less important materials were processed with the 91.13 version of the code and the 91.38 has been used to process all the remaining materials, including the whole GEPDL. Some very important  modifications have been introduced in the code as far as the kerma computation is concerned, in order to solve problems due to physical inconsistencies of the data and non-standard formats of some materials, e.g. the lump reaction MT 10 - neutron diffusion in the continuum energy region - was not properly treated by the kerma module HEATR.  The libraries have been produced both in GENDF -
ZZ-GEFF-2-GENDF - and in MATXS format - the current one; the size of this library in card image format is about 500MB.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:

6. TYPICAL RUNNING TIME:

7. UNUSUAL FEATURES OF THE PROGRAM:

8. RELATED AND AUXILIARY PROGRAMS:  NJOY, BBC, TRANSX.

10. REFERENCES

- G.C.Panini:
  Preliminary Report on Group Transport Libraries GEFF-2
  RFL-2 from EFF 2.2 & JEF 2.2 at June, 22, 1992 - PART B Graphs -
  EFF-DOC-154(92)

- P.Peerani:
  Contribution of radioactive decay to kerma and dpa
  EFF-DOC-55(90)
- E.Cuccoli, G.C.Panini, P.Peerani:
  A Library of Response Functions in Vitamin-J Structure
  EFF-DOC-72(90)
- G.C.Panini, P.Peerani:
  RFL-1 : A Library of Nuclear Response Functions in Vitamin-J
  Structure
  EFF-DOC-130(92)
- G.C.Panini:
  Preliminary Report on Group Transport Libraries GEFF-2 &
  RFL-2 from EFF 2.2 & JEF 2.2 at June, 22, 1992 - PART A
  EFF-DOC-153(92)
- M.Frisoni, G.C.Panini:
  Neutron Heating in EFF-2.2 and JEF 2.2
  EFF-DOC-155(92)/JEF-DOC-374(92)
- M.Frisoni, G.C.Panini, P.Peerani:
  Status Report on the Computation of Kerma and Photon Production
  Data for RFL-2
  EFF-DOC-177(92)
- G.C.Panini:
  Status Report on Group Transport Library GEFF-2 from EFF2.2 & JEF
  2.2 at December, 1992
  EFF-DOC-178(92)
- M.Frisoni, G.C.Panini, P.Peerani:
  Check on the Importance of Radioactive Decay on Kerma and Photon
  Production Data
  EFF-DOC-17
- M.Frisoni, G.C.Panini:
  Status Report on Nuclear Data Processing for the European
  Programme for Fusion
  EFF-DOC-250(93)
- M.Frisoni, G.C.Panini:
  Group Nuclear Data Libraries for the European Programme for fusion
  EFF-DOC-367(94)

11. MACHINE REQUIREMENTS:

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

The
SIZE of the library in card image ASCII format is about 500MB. The list of the materials includes the values of temperature and of dilution at which each material is given.

15. NAME AND ESTABLISHMENT OF AUTHORS: , ENEA, Bologna, ITALY

File name	File description	Records
NEA1544_01.001	Information file	137
NEA1544_01.002	List of materials	254
NEA1544_01.003	AG107	6674
NEA1544_01.004	AG109	9474
NEA1544_01.005	AL27	110077
NEA1544_01.006	AR36	32232
NEA1544_01.007	AR38	31559
NEA1544_01.008	AR40	35592
NEA1544_01.009	B10	80965
NEA1544_01.010	B11	62234
NEA1544_01.011	BA130	16196
NEA1544_01.012	BA134	5718
NEA1544_01.013	BA135	7029
NEA1544_01.014	BA136	6455
NEA1544_01.015	BA137	6197
NEA1544_01.016	BA138	4896
NEA1544_01.017	BE9	38970
NEA1544_01.018	BE9M	40582
NEA1544_01.019	BI209	61276
NEA1544_01.020	CAnat	103817
NEA1544_01.021	CDnat	21885
NEA1544_01.022	CLnat	25194
NEA1544_01.023	Cnat	27205
NEA1544_01.024	CO59	15334
NEA1544_01.025	CR50	54008
NEA1544_01.026	CR52	73642
NEA1544_01.027	CR53	63514
NEA1544_01.028	CR54	49457
NEA1544_01.029	CU63	147356
NEA1544_01.030	CU65	121929
NEA1544_01.031	F19	158349
NEA1544_01.032	FE54	38804
NEA1544_01.033	FE56	96667
NEA1544_01.034	FE57	54885
NEA1544_01.035	FE58	50790
NEA1544_01.036	GRAPHITE	27304
NEA1544_01.037	H1	67235
NEA1544_01.038	H1-BOUND	67158
NEA1544_01.039	H2	47589
NEA1544_01.040	H3	29452
NEA1544_01.041	HE3	18369
NEA1544_01.042	HE4	14997
NEA1544_01.043	HF174	54920
NEA1544_01.044	HF176	58412
NEA1544_01.045	HF177	58798
NEA1544_01.046	HF178	57441
NEA1544_01.047	HF179	53549
NEA1544_01.048	HF180	56949
NEA1544_01.049	IN113	76304
NEA1544_01.050	IN115	65609
NEA1544_01.051	K-nat	28581
NEA1544_01.052	LI6	126598
NEA1544_01.053	LI7	81874
NEA1544_01.054	MG-nat	84798
NEA1544_01.055	MN55	141975
NEA1544_01.056	MO100	103072
NEA1544_01.057	MO92	94963
NEA1544_01.058	MO94	107612
NEA1544_01.059	MO95	134106
NEA1544_01.060	MO96	106949
NEA1544_01.061	MO97	133377
NEA1544_01.062	MO98	108397
NEA1544_01.063	N14	80993
NEA1544_01.064	N15	26157
NEA1544_01.065	NA23	73038
NEA1544_01.066	NB93	61184
NEA1544_01.067	NI58	68768
NEA1544_01.068	NI60	77234
NEA1544_01.069	NI61	118428
NEA1544_01.070	NI62	95234
NEA1544_01.071	NI64	85635
NEA1544_01.072	O16	56505
NEA1544_01.073	P31	5632
NEA1544_01.074	PB-nat	87150
NEA1544_01.075	RE185	22660
NEA1544_01.076	RE187	31582
NEA1544_01.077	SI28	85147
NEA1544_01.078	SN112	19255
NEA1544_01.079	SN114	20227
NEA1544_01.080	SN115	19177
NEA1544_01.081	SN116	15192
NEA1544_01.082	SN117	18136
NEA1544_01.083	SN118	14493
NEA1544_01.084	SN119	21413
NEA1544_01.085	SN120	16819
NEA1544_01.086	SN122	14433
NEA1544_01.087	SN124	17902
NEA1544_01.088	S-nat	24670
NEA1544_01.089	TA181	55286
NEA1544_01.090	TI-nat	90076
NEA1544_01.091	V-nat	47210
NEA1544_01.092	W182	32638
NEA1544_01.093	W183	36353
NEA1544_01.094	W184	33596
NEA1544_01.095	W186	33727
NEA1544_01.096	W-nat	105269
NEA1544_01.097	ZR-nat	28226