Problem 750

Summary:	G4NeutronHPInelastic uses broken chlorine cross section
Product:	Geant4	Reporter:	naranjo
Component:	processes/hadronic/models	Assignee:	tkoi
Status:	RESOLVED FIXED
Severity:	minor
Priority:	P2
Version:	7.0
Hardware:	All
OS:	All

Description naranjo 2005-05-27 11:54:33 CEST

The inelastic neutron scattering cross section data for chlorine contains a NaN,
  leading to significant discrepancies.  This was first reported elsewhere:
http://webmail.unizar.es/pipermail/montecarlo/2005-February/000016.html

Comment 1 Hans-Peter.Wellisch 2005-05-30 01:53:59 CEST

Hi,  thank you for the posting. It is a known problem, but I can do little
about it. The G4NDL 3.7 data library has severe problems. The data are very
old, and still buggy at the same level as for example ENDF/B was in 1988. It
also has a copyright problem, and we no longer can distribute the library. I am
currently working to overcome most of these problems, by creating a fresh
evaluation, but this takes some time...

Many greetings,

Hans-Peter.

Comment 2 tkoi 2006-03-13 12:07:59 CET

G4NDL v3.8 is released and
Inelastic/CrossSection/17_nat_Chlorine is recreated from
Cl-NAT (neutron) from ENDF/B-VI Tape 101.
"NaN" enetry has gone with this update.

Koi, Tatsumi