Ko te taputapu waea he taputapu whatu hiko hikoi kua whakauruhia ki mua i te matapihi whakaputa o te ringaringa huinga ngongo hihi X.Ko tana mahi matua ko te whakahaere i te mara irradiation o te raina whakaputa ngongo X-ray, kia iti ai te whakaahua X-ray me te taatai.Ka taea e te awhe matapae te karo i nga pota kore e tika ana, ka taea hoki e ia etahi hihi marara hei whakapai ake i te paanga o te marama.I tua atu, ka taea hoki te tohu i te pokapū matapae me te rahi o te mara matapae.Ko te taputapu waea he taputapu awhina tino nui mo te whakamaarama me te whakamarumaru X-ray.