NNSA Center 2012 - Revision history

Foretony at 01:52, 5 March 2012

2012-03-05T01:52:13Z

Foretony at 01:48, 5 March 2012

2012-03-05T01:48:47Z

Foretony at 01:40, 5 March 2012

2012-03-05T01:40:48Z

Foretony at 01:38, 5 March 2012

2012-03-05T01:38:22Z

Foretony at 01:35, 5 March 2012

2012-03-05T01:35:14Z

Foretony at 01:33, 5 March 2012

2012-03-05T01:33:11Z

Foretony at 01:24, 5 March 2012

2012-03-05T01:24:15Z

Foretony at 00:54, 5 March 2012

2012-03-05T00:54:45Z

Foretony at 00:53, 5 March 2012

2012-03-05T00:53:31Z

Starvale at 00:51, 5 March 2012

2012-03-05T00:51:47Z

← Older revision		Revision as of 01:52, 5 March 2012
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	Paragraph on model validation		Paragraph on model validation

−	Both MCNPX and GEANT4 have validation methods to test the veracity of their packages. MCNPX and GEANT4 utilize the ENDF data base for their medium energy simulations. GEANT4 has seen validation efforts for physics below the keV energy scale and above the GeV energy scale as a result of GEANT4's use by researchers performing experiements in the energy regimes.	+	Both MCNPX and GEANT4 have validation methods to test the veracity of their packages. MCNPX and GEANT4 utilize the well esablished ENDF data base for their medium energy simulations. GEANT4 has seen validation efforts for physics below the keV energy scale and above the GeV energy scale as a result of GEANT4's use by researchers performing experiements in the energy regimes. As an NNSA center, we would propose training students in simulations so they may contain a skill set that would allow them to contribute to the validation methods as members of the nuclear work force.

← Older revision		Revision as of 01:48, 5 March 2012
Line 12:		Line 12:
	Paragraph on model validation		Paragraph on model validation

−	Both MCNPX and GEANT4 have validation methods to test the veracity of their packages. MCNPX and GEANT4 utilize the ENDF data base for their medium energy simulations. GEANT4 has seen validation efforts for physics below the keV energy scale and above the GeV energy scale as a result of GEANT4 use by researchers performing experiements in the energy regimes.	+	Both MCNPX and GEANT4 have validation methods to test the veracity of their packages. MCNPX and GEANT4 utilize the ENDF data base for their medium energy simulations. GEANT4 has seen validation efforts for physics below the keV energy scale and above the GeV energy scale as a result of GEANT4's use by researchers performing experiements in the energy regimes.

← Older revision		Revision as of 01:40, 5 March 2012
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	Paragraph on model validation		Paragraph on model validation
−	Both MCNPX and GEANT4 have validation methods to test the veracity of their packages. MCNPX and GEANT4 ~~utilizxe~~ the ENDF data base for their medium energy simulations. GEANT4 has seen validation efforts for ~~photon~~ physics ~~low~~ energy ~~ranges~~	+
		+	Both MCNPX and GEANT4 have validation methods to test the veracity of their packages. MCNPX and GEANT4 utilize the ENDF data base for their medium energy simulations. GEANT4 has seen validation efforts for physics below the keV energy scale and above the GeV energy scale as a result of GEANT4 use by researchers performing experiements in the energy regimes.

@@ Line 45: / Line 45: @@
 | MCNPX ||1 keV<math> \Rightarrow</math> 0.1 TeV ||0<math> \Rightarrow</math> 200 MeV ||1 MeV<math> \Rightarrow</math> 100 MeV ||1 keV<math> \Rightarrow</math> 1 GeV ||1 MeV<math> \Rightarrow</math> 500 MeV
 |-
-| GEANT4 || 10 eV<math> \Rightarrow</math> 1 TeV ||thermal <math> \Rightarrow</math> 100 MeV || 25 MeV <math> \Rightarrow</math> 10 GeV || <math> \Rightarrow</math> || <math> \Rightarrow</math>
+| GEANT4 || 10 eV<math> \Rightarrow</math> 1 TeV ||thermal <math> \Rightarrow</math> 100 MeV || 25 MeV <math> \Rightarrow</math> 10 GeV || 1 keV<math> \Rightarrow</math> 100 GeV|| NA
 |-
 |}

@@ Line 45: / Line 45: @@
 | MCNPX ||1 keV<math> \Rightarrow</math> 0.1 TeV ||0<math> \Rightarrow</math> 200 MeV ||1 MeV<math> \Rightarrow</math> 100 MeV ||1 keV<math> \Rightarrow</math> 1 GeV ||1 MeV<math> \Rightarrow</math> 500 MeV
 |-
-| GEANT4 || 10 eV<math> \Rightarrow</math> 1 TeV ||thermal <math> \Rightarrow</math> 100 MeV || <math> \Rightarrow</math> || <math> \Rightarrow</math> || <math> \Rightarrow</math>
+| GEANT4 || 10 eV<math> \Rightarrow</math> 1 TeV ||thermal <math> \Rightarrow</math> 100 MeV || 25 MeV <math> \Rightarrow</math> 10 GeV || <math> \Rightarrow</math> || <math> \Rightarrow</math>
 |-
 |}

@@ Line 41: / Line 41: @@
 {| border="1"  |cellpadding="20" cellspacing="0
 |-
-|   Simulation||  photon || neutron || proton || electrons || photo-nuclear || light ions || heavy ions
+|   Simulation||  photon || neutron || proton || electrons || photo-nuclear
 |-
 | MCNPX ||1 keV<math> \Rightarrow</math> 0.1 TeV ||0<math> \Rightarrow</math> 200 MeV ||1 MeV<math> \Rightarrow</math> 100 MeV ||1 keV<math> \Rightarrow</math> 1 GeV ||1 MeV<math> \Rightarrow</math> 500 MeV
 |-
-| GEANT4 || 10 eV<math> \Rightarrow</math> 1 TeV ||thermal <math> \Rightarrow</math> 100 MeV || <math> \Rightarrow</math> || <math> \Rightarrow</math> || <math> \Rightarrow</math>  || <math> \Rightarrow</math>  || 50 keV<math> \Rightarrow</math>  100 TeV / nucleon
+| GEANT4 || 10 eV<math> \Rightarrow</math> 1 TeV ||thermal <math> \Rightarrow</math> 100 MeV || <math> \Rightarrow</math> || <math> \Rightarrow</math> || <math> \Rightarrow</math>
 |-
 |}

← Older revision		Revision as of 01:24, 5 March 2012
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	Paragraph on model validation		Paragraph on model validation
		+	Both MCNPX and GEANT4 have validation methods to test the veracity of their packages. MCNPX and GEANT4 utilizxe the ENDF data base for their medium energy simulations. GEANT4 has seen validation efforts for photon physics low energy ranges
		+

	{\| border="1" \|cellpadding="20" cellspacing="0		{\| border="1" \|cellpadding="20" cellspacing="0

@@ Line 10: / Line 10: @@
 Students working at the Idaho Accelerator Center have a long history of using both GEANT4 and MCNPX to both predict and interpret their experimental results.  A recent effort has been made to begin  using simulation tools in the design of experiments.  Figure 1a is an example of using MCNPX to determine the neutron flux from a proposed accelerator based neutron source.  Students in the center have been using GEANT4 to develop an efficient fission chamber.  Figure 1b is an example of one student comparing the U-238 neutron induced fission spectrum predicted by the ABLA model in GEANT4 to the IAEA's data evaluation.  As an NNSA center of excellence, students will be given the opportunity to contribute to the development of simulations by contrasting their predictions with experimental results.
+ Paragraph on model validation
 {| border="1"  |cellpadding="20" cellspacing="0

@@ Line 2: / Line 2: @@
+GEANT, on the other hand, is a publicly available open-source package. GEANT and MCNPX have substantial overlap in the models and data they employ to predict how particles interact with matter.   For example, both utilize the Evaluated Nuclear Data FIle (ENDF)  from the National Nuclear Data Center as input to their simulation programs.  Historically, MCNPX has been a more complete resource for simulation nuclear reactions than GEANT.  Recently however, GEANT4 has been gaining ground and becoming a testbed for such models as the Bertini Cascade model (INCL/ABLA).   Although each has their strengths and weaknesses, nuclear physics students who desire to develop a simulation program, but are not eligible for the MCNPX source code, rely on GEANT4.  As a result, GEANT4 has a large development community and more readily used as an education tool for universities who train international students as well as
 US students for entry into the US nuclear workforce.
-Students working at the Idaho Accelerator Center have a long history of using MCNPX to interpret their experimental results.  A recent effort has been made to begin  using simulation tools in the design of experiments.  Figure 1a is an example of using MCNPX to determine the neutron flux from a proposed accelerator based neutron source.  Students in the center have been using GEANT4 to develop an efficient fission chamber.  Figure 1b is an example of one student comparing the U-238 neutron induced fission spectrum predicted by the ABLA model in GEANT4 to the IAEA's data evaluation.  As an NNSA center of excellence, students will be given the opportunity to contribute to the development of simulations by contrasting their predictions with experimental results.
+Students working at the Idaho Accelerator Center have a long history of using both GEANT4 and MCNPX to both predict and interpret their experimental results.  A recent effort has been made to begin  using simulation tools in the design of experiments.  Figure 1a is an example of using MCNPX to determine the neutron flux from a proposed accelerator based neutron source.  Students in the center have been using GEANT4 to develop an efficient fission chamber.  Figure 1b is an example of one student comparing the U-238 neutron induced fission spectrum predicted by the ABLA model in GEANT4 to the IAEA's data evaluation.  As an NNSA center of excellence, students will be given the opportunity to contribute to the development of simulations by contrasting their predictions with experimental results.
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 |-
 |}