def METHOD_NAME(
    curvetype,
    depth_test,
    distance,
    relative_dose,
    scan_curvetype,
    scan_depth,
    mephysto_pdd_depth,
    mephysto_pdd_dose,
):
    choose_mephysto = (scan_curvetype == curvetype) & (scan_depth == depth_test)
    if np.sum(choose_mephysto) != 1:
        raise ValueError("Can only handle exactly one scan type per mephysto file")
    mephysto_distance = distance[choose_mephysto][0]
    mephysto_normalised_dose = normalisation.normalise_profile(
        mephysto_distance,
        relative_dose[choose_mephysto][0],
        scale_to_pdd=True,
        pdd_distance=mephysto_pdd_depth,
        pdd_relative_dose=mephysto_pdd_dose,
        scan_depth=depth_test,
    )
    return mephysto_distance, mephysto_normalised_dose