Calculator Information

class transfocate.calculator.Calculator(xrt_lenses, tfs_lenses)

Class for the transfocator beryllium lens calculator.

Parameters:

• xrt_lenses (list) – A list of the xrt prefocus lenses

• tfs_lenses (list) – A list of the transfocator lenses

combinations(include_prefocus=True)

All possible combinations of the given lenses

Parameters:

include_prefocus (bool) – Use only combinations that include a prefocusing lens. If False, only combinations of Transfocator lenses are returned

Returns:

combos – List of LensConnect objects

Return type:

list

find_solution(target, n=4, z_obj=0.0, include_prefocus=True)

Find a combination to reach a specific focus

Parameters:

• target (float) – The desired position of the focal plane in accelerator coordinates

• n (int, optional) – The maximum number of lenses in a valid combination. This saves time by avoiding calculating the focal plane of combinations with a large number of lenses

• z_obj (float, optional) – The source point of the beam

• include_prefocus (bool, optional) – Use only combinations that include a prefocusing lens. If False, only combinations of Transfocator lenses are returned

Returns:

array – An array of lens combinations with the closest possible image to the target_image

Return type:

LensConnect