def add_irradiation(self, name):
    p = os.path.join(paths.meta_root, name)
    if (not os.path.isdir(p)):
        os.mkdir(p)
def add_irradiation(self, name):
    p = os.path.join(paths.meta_root, name)
    if (not os.path.isdir(p)):
        os.mkdir(p)