irfpy.jdc.flux0

A module to convert between the count rate and the flux for JDC.

A draft g-factor value is used, as in the proposal.

class irfpy.jdc.flux0.Flux2Count

Bases: object

Flux is converted to count rate.

getCounts(flux, energy_step)

getCounts_eV(flux, energy_eV)

Parameters

flux – DIfferential flux in part. / cm2 sr eV s

class irfpy.jdc.flux0.Count2Flux

Bases: object

Count rate is converted to flux.

G-factor is constant, independent of anything. 5.6x10^-4 cm2 sr eV/eV.

getFlux(cps, energy_step)

Depending on energy step, flux is calculated.

Energy step is, as for the module consideration, obtained from irfpy.jdc.energy0.

>>> c2f = Count2Flux()
>>> print('%.3f' % c2f.getFlux(1, 96))  # 1 count level for energy step 96.
0.582

getFlux_eV(cps, energy_eV)

Return the expected flux based on the absolute energy value.

Based on the definition of the G-factor, one can get the conversion as

\[J = \frac{C}{GE}\]

where C is the countr ate in c/s, G is the g-factor in cm2 sr eV/eV, E is the energy in eV. The returned will be the differential flux in the unit of cnts / cm2 sr eV s.

>>> c2f = Count2Flux()
>>> print('%.2f' % c2f.getFlux_eV(1, 1000))   # 1 count level for 1000eV channel.
1.79

irfpy.jdc.flux0.doctests()