Inverse-Compton Photon Energy
Estimate low-recoil head-on inverse-Compton backscatter photon energy as 4γ²E.
Description
A low-recoil head-on inverse-Compton estimate multiplies incident photon energy by four times electron Lorentz factor squared.
A low-recoil head-on inverse-Compton estimate multiplies incident photon energy by four times electron Lorentz factor squared. This is a reduced energy-scaling model.1
Estimate low-recoil head-on inverse-Compton backscatter photon energy as 4γ²E.
When to use Inverse-Compton Photon Energy
Use this tool to estimate low-recoil head-on inverse-Compton backscatter photon energy as 4γ²E.
Prepare the optical measurements, geometry, fitted coefficients or caller-selected thresholds requested. Confirm wavelength, radius/diameter, pulse-width, angle and unit conventions before running the calculation.
How to use Inverse-Compton Photon Energy and understand its results
- Prepare the optical measurements, geometry, fitted coefficients or caller-selected thresholds requested. Confirm wavelength, radius/diameter, pulse-width, angle and unit conventions before running the calculation.
- Enter electronLorentzFactor, incidentPhotonEnergyEv using the field table and calculation rules, then run the tool.
- Read backscatteredPhotonEnergyEv. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| electronLorentzFactor | Electron Lorentz factor | number; minimum: 1 | Required |
| incidentPhotonEnergyEv | Incident photon energy (eV) | number; minimum: 0 | Required |
Enter Lorentz factor≥1 and nonnegative incident eV. Return scattered eV.
scatteredEnergy=4γ² incidentEnergy Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| backscatteredPhotonEnergyEv | Head-on backscatter photon energy (eV) | number; minimum: 0 |
{
"input": {
"electronLorentzFactor": 100,
"incidentPhotonEnergyEv": 1
},
"output": {
"backscatteredPhotonEnergyEv": 40000
}
}Limitations and assumptions
Finite collision angle, recoil and nonlinear laser strength are omitted. The tool does not enforce the approximation regime.
Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Wakefield Gradient Comparison: Calculate wakefield energy gain and compare the gradient with a supplied reference. For a complementary task, use McWhirter Density Threshold: Calculate the McWhirter LTE minimum electron density and compare a measurement.
References
-
Inverse-Compton Photon Energy — tool.io
Similar or alternative tools
- Wakefield Gradient Comparison
Calculate wakefield energy gain and compare the gradient with a supplied reference.
- McWhirter Density Threshold
Calculate the McWhirter LTE minimum electron density and compare a measurement.