Frank Gunsing, CEA/Saclay n_TOF Collaboration Meeting, Paris 4/5-12-2006

DAPNIA

Status 232Th(n,) analysis

Unresolved Resonance Region (URR: 4 keV - 1 MeV)• paper published: Phys. Rev. C 74 (2006) 025807

Resolved Resonance Region (RRR: thermal - 4 keV)• data analyzed• paper in preparation• final fit new resolution function to be done

Frank Gunsing, CEA/Saclay n_TOF Collaboration Meeting, Paris 4/5-12-2006

DAPNIA

232Th(n,) Unresolved Resonance Region

Frank Gunsing, CEA/Saclay n_TOF Collaboration Meeting, Paris 4/5-12-2006

DAPNIA

232Th(n,) Unresolved Resonance Region

Frank Gunsing, CEA/Saclay n_TOF Collaboration Meeting, Paris 4/5-12-2006

DAPNIA

232Th(n,) Resolved Resonance Region

Frank Gunsing, CEA/Saclay n_TOF Collaboration Meeting, Paris 4/5-12-2006

DAPNIA

232Th(n,) orbital momentum assignment

Frank Gunsing, CEA/Saclay n_TOF Collaboration Meeting, Paris 4/5-12-2006

DAPNIA

232Th(n,) Porter-Thomas distribution

Frank Gunsing, CEA/Saclay n_TOF Collaboration Meeting, Paris 4/5-12-2006

DAPNIA

232Th(n,) Wigner distribution

Frank Gunsing, CEA/Saclay n_TOF Collaboration Meeting, Paris 4/5-12-2006

DAPNIA

232Th(n,) saturated resonance shape

Frank Gunsing, CEA/Saclay n_TOF Collaboration Meeting, Paris 4/5-12-2006

DAPNIA

Resolution function

n_TOF

Frank Gunsing, CEA/Saclay n_TOF Collaboration Meeting, Paris 4/5-12-2006

DAPNIA

Resolution function

Frank Gunsing, CEA/Saclay n_TOF Collaboration Meeting, Paris 4/5-12-2006

DAPNIA

Conclusion

• New simulations of the n_TOF resolution function needed withwater thickness 6 cm instead of previously assumed 5 cm.

• New analytical parametrization of the resolution function.

• new resolution and n_TOF data:- not yet published: use new resolution function.- already published: check impact.

• Data for EXFOR: for RRR, submit also reaction yields, in addition to resonance parameters.