I ke anuanu kūlohelohe, ua manaʻo ʻia ka radiation solar ke kumu nui o ka uhi ʻana i ka wā kahiko, a ʻo ke kumu o ka radiation radiation ma lalo o ke aniani pukaaniani like.No laila, he mea koʻikoʻi ka hoʻohālikelike ʻana i ka pāhawewe lā no ka wā kahiko o ke aniau a me ka ʻike ʻana i ka radiation.ʻO ka xenon arc radiation kumu e hana i kekahi o nā ʻōnaehana kānana māmā ʻelua e hoʻololi i ka māhele spectral o ka radiation i hana ʻia, e hoʻohālikelike ana i ka hāʻawi spectral o ka ultraviolet a me ka ʻike ʻia o ka lā, a me ka hoʻohālikelike ʻana i ka hāʻawi spectral o ka ultraviolet a me ka ʻike ʻia o ka lā i kānana ʻia e kahi 3mm. aniani pukaaniani manoanoa.

ʻO ka hāʻawi ʻana i ka ikehu o nā kikoʻī ʻelua e wehewehe i ka waiwai irradiance a me ka ʻae ʻia ʻana o ka ʻae ʻia ʻana o ka radiation māmā i kānana ʻia e ka kānana ma ka laulā kukui ultraviolet ma lalo o 400mm ka lōʻihi.Eia hou, CIE No.85 he maʻamau irradiance me ka nalu nalu a hiki i 800nm, no ka mea, hiki i ka xenon arc radiation ke hoʻohālike maikaʻi i ka pāhawewe lā i loko o kēia pae.

I ka wā o ka hoʻāʻo ʻana o nā mea hoʻolaha, hiki ke loli ka irradiance ma muli o ka ʻelemakule o ka xenon arc a me ka ʻōnaehana kānana.Hoʻololi maoli kēia hoʻololi i ka laulā ultraviolet, nona ka hopena photochemical nui loa i nā mea polymer.No laila, ʻaʻole pono ke ana ʻana i ka manawa hōʻike, akā e ana pū i ka laulā hawewe ma lalo o 400nm a i ʻole ka ikehu radiation hoʻolaha ma kahi hawewe i kuhikuhi ʻia e like me 340nm, a hoʻohana i kēia mau waiwai e like me nā helu kuhikuhi no ka uhi ʻana i ka wā kahiko.

ʻAʻole hiki ke hoʻohālikelike pono i nā hopena o nā ʻano like ʻole o ke ʻano o ke aniau ma nā uhi.No laila, ma ke keʻena hōʻike kukui xenon, ua hoʻohana ʻia ka huaʻōlelo artificial climate aging e hoʻokaʻawale i ka ʻelemakule kūlohelohe.ʻO ke aniani puka aniani i hoʻohālikelike ʻia i ka hoʻāʻo ʻana o ka lā i ʻōlelo ʻia ma ke keʻena hoʻāʻo kukui xenon i kapa ʻia ʻo ka hoʻolaha radiation artificial.