Problem 586

Summary:	wrong exitation energy
Product:	Geant4	Reporter:	etenko
Component:	processes/hadronic/models	Assignee:	Hans-Peter.Wellisch
Status:	RESOLVED FIXED
Severity:	normal
Priority:	P2
Version:	5.2
Hardware:	PC
OS:	Linux

Description etenko 2004-02-18 10:22:11 CET

Simulation of the slow neutrons absorption by scintillator containing Cadmium
or Gadolinium shows systematic arrears of the exitation energy (~150 keV for Cd
and ~ 300 keV for Gd). This is due to different type of the total energy
calculation for neutron + target and for residual neucleus in NeutronHPCapture
model. For target the method GetIonMass(A,Z) is used and for neucleus the method
G4NucleiProperties::GetNuclearMass(A,Z). Last one takes into account the correction
1.433e-5*MeV*pow(Z,2.39) for the residual neuclear mass, which gives exactly the
values pointed before. May be the method G4NucleiProperties::GetNuclearMass(A,Z)
should be used in both cases?
Sincerely Yours Alexander Etenko

Comment 1 Hans-Peter.Wellisch 2004-03-04 07:30:59 CET

ok. I'll have a look. Thank yuo for reporting this.

Many greetings,

Hans-Peter.

Comment 2 Hans-Peter.Wellisch 2004-04-20 07:04:59 CEST

should work in geant4 6.1.

Many greetings,

Hans-Peter.