
    Calculate the total surface area that needs to be sanitized between patient scans in a cylindrical MRI tunnel, excluding the front and back openings, given the tunnel's internal radius and length. This calculation is essential for determining the required amount of disinfectant and ensuring proper sanitization protocols are followed for infection control.
    

    
def lateralsuface_cylinder(r, h):
    """
    Calculate the total surface area that needs to be sanitized between patient scans in a cylindrical MRI tunnel, excluding the front and back openings, given the tunnel's internal radius and length. This calculation is essential for determining the required amount of disinfectant and ensuring proper sanitization protocols are followed for infection control.
    

    """
def lateralsuface_cylinder(r, h):
    """
    Calculate the total surface area that needs to be sanitized between patient scans in a cylindrical MRI tunnel, excluding the front and back openings, given the tunnel's internal radius and length. This calculation is essential for determining the required amount of disinfectant and ensuring proper sanitization protocols are followed for infection control.
    

    """
    lateralsurface = 2 * 3.1415 * r * h
    return lateralsurface