RF_AxisFieldAnalysis#

class orbit.py_linac.rf_field_readers.RF_AxisFieldAnalysis(splineFiled, zeroIsCenter=False)[source]#

Bases: object

This class analyzes the RF electric field on the axis of a whole cavity. The result of analysis are Time Transit Factors T,Tp,S,Sp for all gaps found in the cavity.

Methods Summary

`dumpTTFandFitting`(file_ttf_and_fitting_out)	This method prints out the TTF T,Tp,S,Sp and polynomials fitting for all RF gaps.
`dumpTransitTimeTables`(file_ttf_out)	This method prints out the final parameters of the transit time tables for all RF gaps.
`gapCentersAnalysis`()	The method will calculate the positions of d(Ez)/dz = 0 as centers of the gaps
`getNormilizedSpline`()	Returns the spline normilized by the integral of the absolute value.
`getTTPandSSP_Values`(beta[, gap_index])	Returns a tuple (T,T',S,S') for particular beta value for given gap_index.
`makePlynomialFittings`(n_order)	The method will prepare the polynomial fitting for the T,Tp,S,Sp as functions of cappa for all RF gaps TTFs (T,S,Tp,Sp) are funcftions of the cappa variable = 2pif/(c*beta)
`makeTransitTimeTables`(beta_min, beta_max, ...)	It will calculate transit time factor tables for all RF gaps TTFs (T,S,Tp,Sp) are funcftions of the cappa variable = 2pif/(c*beta)
`rootAnalysis`()	The method will find the roots of the field distribution, and it will return the root array including the left and right edge points

Methods Documentation

dumpTTFandFitting(file_ttf_and_fitting_out)[source]#: This method prints out the TTF T,Tp,S,Sp and polynomials fitting for all RF gaps.

dumpTransitTimeTables(file_ttf_out)[source]#: This method prints out the final parameters of the transit time tables for all RF gaps.

gapCentersAnalysis()[source]#: The method will calculate the positions of d(Ez)/dz = 0 as centers of the gaps

getNormilizedSpline()[source]#: Returns the spline normilized by the integral of the absolute value.

getTTPandSSP_Values(beta, gap_index=0)[source]#: Returns a tuple (T,T’,S,S’) for particular beta value for given gap_index. The data for func_T,func_TP,func_S,func_SP should be prepared before by call makeTransitTimeTables(…).

makePlynomialFittings(n_order)[source]#: The method will prepare the polynomial fitting for the T,Tp,S,Sp as functions of cappa for all RF gaps TTFs (T,S,Tp,Sp) are funcftions of the cappa variable = 2*pi*f/(c*beta)

makeTransitTimeTables(beta_min, beta_max, n_table_points, rf_freq)[source]#: It will calculate transit time factor tables for all RF gaps TTFs (T,S,Tp,Sp) are funcftions of the cappa variable = 2*pi*f/(c*beta)

rootAnalysis()[source]#: The method will find the roots of the field distribution, and it will return the root array including the left and right edge points