Main functionality:
import create_pyecloud_input

- call get_b_multip to obtain the B_multip and B_skew input parameters for PyECLOUD.
	B per eV or B skew per eV have to be specified as keyword arguments B_eV, B_skew_eV.
	Alternatively, k or k_skew can be specified as keyword arguments.

- call get_k_pe_st_and_r to obtain the k_pe_st and refl_frac input parameters for PyECLOUD
	The number of photons above the work function is calculated from the beam energy in eV.
	R_i has to be specified for the reflectivity on impact.
	Y_i is the electron yield per absorbed photon on impact.
	Y_r is the electron yield per absorbed photon after initial reflection.

- In materials.py, the conservative and optimistic estimates are given in nested dictionaries.
- In magnet_strengths.py, some typical values for magnetic configurations are given.
- The script length_of_elements.py spits out the average cryogenic lengths of magnetic elements in the cryogenic cells of the LHC.
- It relies on parsing the file 'twiss_lhcb1_2.tfs.gz'. This piece of code may be difficult to understand.
- The file n_photons.py implements all necessary formulas to compute the number of photons emitted per proton and per meter.