Problem 2162

Summary:	fusion reactions
Product:	Geant4	Reporter:	michel.maire
Component:	physics_lists	Assignee:	Vladimir.Ivantchenko
Status:	RESOLVED FIXED
Severity:	minor	CC:	Gunter.Folger, michel.maire, Vladimir.Ivantchenko
Priority:	P4
Version:	10.5
Hardware:	All
OS:	All

Description michel.maire 2019-04-24 11:51:24 CEST

Fusion reaction : deuteron + tritium can be simulated with G4IonPhysics but no more with G4IonPhysicsXS.
Same remark for dd and td reactions.

Here a macro for Hadr03 :

 /control/verbose 1
 /run/verbose 1
 #
 /testhadr/det/setIsotopeMat tritium 1 3 0.1 g/cm3
 /testhadr/det/setSize 20 m
 #
 /run/initialize
 #
 /gun/particle deuteron
 /gun/energy 80 keV
 #
 /process/inactivate hadElastic
 #
 /run/beamOn 10000

Comment 1 michel.maire 2019-09-02 15:25:00 CEST

the problem is still here in ref-08

Comment 2 Vladimir.Ivantchenko 2019-11-14 19:42:05 CET

Hi Michel,

 80 keV seems to be below Coulomb barrier, when I set 80 MeV all reactions are seen.

Vladimir

Comment 3 michel.maire 2019-11-15 16:49:54 CET

Did you try with G4IonPhysics or G4IonPhysicsPHP ?
Both produce the well known neutron of 14.1 MeV (for example in the sun ...)

   Michel

Comment 4 Vladimir.Ivantchenko 2019-11-16 19:43:29 CET

Hi Michel,

in all 3 cases similar neutrons are produced with 1.5 MeV primary energy. WHat is slightly worrying me that 3 cross sections very different.

Vladimir

Comment 5 Vladimir.Ivantchenko 2020-11-06 08:54:54 CET

Hi Michel,

with the new macro it seems the problem is fixed.

Vladimir

Comment 6 michel.maire 2020-11-06 10:30:15 CET

Yes, it seems ok.
I scanned few energies. Cross sections agreed with the plot send by Baptiste Guegan.

 Thanks,  Michel