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New dosimetry library - IRDFF. R. Capote, A. Trkov, K.I. Zolotarev , V. Pronyaev IAEA/NAPC Nuclear Data Section. Update of the IRDF-2002 (rel. 2005). IAEA CM held in 2007,2010: INDC(NDS)-0575 (2010) and INDC( NDS)-507 (2007) Zolotarev evaluations for RRDF

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new dosimetry library irdff
New dosimetry library - IRDFF

R. Capote, A. Trkov, K.I. Zolotarev, V. Pronyaev

IAEA/NAPC Nuclear Data Section

slide2

Update of the IRDF-2002 (rel. 2005)

  • IAEA CM held in 2007,2010:
  • INDC(NDS)-0575 (2010) and
  • INDC( NDS)-507 (2007)
  • Zolotarev evaluations for RRDF
  • (partially supported by IAEA/NDS)
  • INDC(NDS)-0526,
  • INDC(NDS)-0546,
  • INDC(NDS)-0584,
  • IAEA Standards + ENDF/B-VII.0+cov
  • JENDL-4 ?
  • Model covariance calculations: TENDL
  • Use for the extension of the energy range
  • Conclusions and outlook
new evaluation
New evaluation

64Zn(n,p)64Cu

197 au n 2n 196 au
197Au(n,2n)196Au

Extension to 60 MeV – TENDL- 2010

~6 % renormalization

40 MeV

60 MeV

TENDL

2010

197 au n 2n 196 au1
197Au(n,2n)196Au

Extension to 60 MeV – TENDL- 2010

spectrum and xs uncertainties
Spectrum and XS uncertainties

Source spectrum file : spectra\Cf252s.g

Unc. Unc. Unc.

Mat. MT E(50%) <XS> +/- Unc x.s. Sp. Total

[MeV] [mb] [%] [%] [%] [%]

------------------------------------------------------------------------------------------------

79197 16 10.50 .553122E+01 +/- .1523E+00 1.873 2.019 2.754

79197 102 .72 .749206E+02 +/- .6899E+00 .563 .728 .921

27059 16 13.00 .407990E+00 +/- .1480E-01 1.519 3.294 3.627

27059 17 19.80 .342457E-05 +/- .2594E-05 .000 75.74 75.74

27059 102 .88 .485887E+01 +/- .2029E+00 4.081 .886 4.176

27059 103 5.90 .171549E+01 +/- .6254E-01 3.457 1.159 3.646

27059 107 8.30 .221311E+00 +/- .8567E-02 3.542 1.562 3.871

Source spectrum file : spectra\U235th-B71.g

79197 16 10.30 .325997E+01 +/- .1559E+01 1.966 47.767 47.807

79197 102 .72 .757991E+02 +/- .2654E+01 .566 3.455 3.501

slide21

Conclusions

  • International Reactor Dosimetry File IRDF-2002 released in 2005 [1];
  • library contains 66 dosimetry reactions. Update is needed.
  • New IAEA dosimetry library (IRDFF) released for testing (74 react + 3abs)
  • New suitable evaluations including covariances became available
  • - IAEA neutron cross-section standards [2] combined with
  • ENDF-B/VII.1 evaluations [3], JENDL-4 evaluations, and
  • Zolotarev evaluations [4-6].
  • 37 dosimetry reactions updated and compared to measurements in
  • ENDF-B/VII.0 235U thermal and 252Cf fast neutron fields.
  • Formal extension of all evaluations up to 60 MeV of incident neutron
  • energy using TENDL-2010 [7] done.

REFERENCES:

[1] O. Bersillon et al., IRDF-2002, International Atomic Energy

Agency, Vienna, Austria, TRS 452 (2006).

[2] A. D. Carlson, et al, Nucl. Data Sheets 110 (2009) 3215-3324.

[3] L. Leal, Evaluations in the ENDF/B-VII.1 library with covariances, priv. comm., 2010.

[4] K. I. Zolotarev, INDC(NDS)-0526, IAEA, Vienna, August 2008.

[5] K. I. Zolotarev, INDC(NDS)-0546, IAEA, Vienna, April 2009.

[6] K. I. Zolotarev, INDC(NDS)-0584, IAEA, Vienna, November 2010.

[7] A. J. Koning and D. Rochman, TENDL-2010, The Netherlands.

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