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shimwell committed Jun 11, 2024
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35 changes: 24 additions & 11 deletions 2_nuclear_data.md
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- exfor data
- libraries (endf, tendl etc)
- regions of plot
<!-- - multigroup / continuous energy
- group strucutres -->
- multigroup / continuous energy
- group structures
- reaction rate equation
- macroscopic
- scattering
Expand All @@ -95,7 +95,21 @@ style: |
Nuclear reactions notation

Incident nuclei ( incident projectile, resulting fragments) resulting nuclei
Be9 ( n, 2n ) 2He4
<html>
<body>
<svg height="250" width="100%" xmlns="http://www.w3.org/2000/svg">
<text x="40%" y="50" fill="red" font-size="35">Be9(n,2n)2He4</text>
<line x1="40%" y1="60" x2="20%" y2="200" style="stroke:red;stroke-width:2" />
<line x1="47%" y1="60" x2="40%" y2="200" style="stroke:red;stroke-width:2" />
<line x1="50%" y1="60" x2="66%" y2="200" style="stroke:red;stroke-width:2" />
<line x1="60%" y1="60" x2="85%" y2="200" style="stroke:red;stroke-width:2" />
<text x="15%" y="230" fill="red" font-size="35">Target</text>
<text x="35%" y="230" fill="red" font-size="35">Projectile</text>
<text x="60%" y="230" fill="red" font-size="35">Product</text>
<text x="80%" y="230" fill="red" font-size="35">Product</text>
</svg>
</body>
</html>

---

Expand All @@ -105,7 +119,7 @@ Be9 ( n, 2n ) 2He4
- MT 3 is elastic scattering (n,'n)
- MT 16 is neutron multiplication (n,2n)
- MT 18 is neutron multiplication (n,f)
- MT 205 is tritium production multiplication (n,2n)
- MT 205 is tritium production (n,Xt) where X is a wild card
- MT 444 is damage energy

[Link to ENDF reaction numbers by NEA](https://www.oecd-nea.org/dbdata/data/manual-endf/endf102_MT.pdf)
Expand All @@ -116,13 +130,14 @@ Be9 ( n, 2n ) 2He4

Reactions that result in a change of the element

Transmutation
### Transmutation
(n,p)
(n,alpha)
Be9(n,2n)2He4
(n,fission)


No transmutation
### No transmutation
(n, elastic)
(n, inelastic)
(n, heating)
Expand All @@ -142,16 +157,14 @@ Amount of energy absorbed (-ve) or release (+ve) during the nuclear reaction
| Li6(n,t) | 4.8 | No |
| Li7(n,nt) | -2.4 | Yes |



---

## Fusion fuels


Q values of reactions
all thresholds
plot cross sections vs energy
Q values of fusion fuel reactions

Plot cross sections vs energy

---

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61 changes: 39 additions & 22 deletions 5_simulation_software.md
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# Overview of neutronics simulation software

- Inventory code
- Inventory codes
- Radiation transport
- Monte Carlo Simulation Codes
- Deterministic Simulation Codes
Expand Down Expand Up @@ -97,14 +97,16 @@ https://www.sciencedirect.com/science/article/abs/pii/S0920379617305331

# Inventory codes

ACAB
ALARA
Aburn
OpenMC
Origen
Serpent
Fispact
Fornax
| Name of software | Group / community / country |
| ----- | -----|
| ACAB | UNED, Spain |
| ALARA | Wisconsin, US |
| Aburn | North China Electrical Power |
| OpenMC | MIT, ANL and open source community |
| Origen | LANL, US |
| Serpent | VTT, Finland |
| Fispact | CCFE / UKAEA |
| Fornax | Silver Fir Software, US |

---

Expand All @@ -123,8 +125,6 @@ Boltzman transport equation
- Track individual particle histories through phase space
- Random sampling of particle behavior at each event
- Accumulate contributions to the mean behavior from each history
- Varience reduction generators
- Geometry conversion

---

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# Monte Carlo Simulations

- FLUKA
- GEANT
- MCNP
- OpenMC
- Serpent
- TopMC
- TRIPOLI
| Name of software | Group / community / country |
| ----- | -----|
| FLUKA | CERN |
| GEANT | CERN |
| MCNP | LANL |
| OpenMC | MIT, ANL and open source community
| Serpent | VTT, Finland
| TopMC | China
| TRIPOLI | France

---

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# Deterministic Simulation Codes

| Name of software | Group / community / country |
| ----- | -----|
- ATTILA
- Denovo
- OpenMOC
Expand All @@ -177,10 +181,12 @@ Boltzman transport equation

# Variance reduction generators

ADVANTG
CADIS
Magic method
Random Ray
| Name of software | Group / community / country |
| ----- | -----|
| ADVANTG
| CADIS
| Magic method
| Random Ray

---

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Pyne, Silverfir

---


Software distirbution

Some codes used in neutronics are controlled codes under export control

Distribution in the US by RSICC and in the EU by the NEA databank.

[RSICC](http://rsicc.ornl.gov/Default.aspx)

[NEA databank](https://www.oecd-nea.org/dbcps/)
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