Kwiimozulu zendalo, imisebe yelanga ithathwa njengeyona nto ibangela ukuguga, kwaye umgaqo wokuvezwa kwemisebe phantsi kweglasi yefestile iyafana.Ke ngoko, ukulinganisa imitha yelanga kubalulekile ekugugeni kwemozulu eyenziweyo kunye nokuba sesichengeni sokwenziwa kwemitha.Umthombo wemitha ye-xenon arc utyhutyha enye yeenkqubo ezimbini ezahlukeneyo zokucoca ukukhanya ukuze utshintshe usasazo olubonakalayo lwemitha eyivelisayo, ukulinganisa ukuhanjiswa kwe-spectral ye-ultraviolet kunye nemitha yelanga ebonakalayo, kunye nokulinganisa ukuhanjiswa kwe-spectral ye-ultraviolet kunye nemitha yelanga ebonakalayo ehluzwe yi-3mm. iglasi yefestile eshinyeneyo.

Ukuhanjiswa kwamandla kwezi spectra zimbini kuchaza ixabiso le-irradiance kunye nokutenxa okuvumelekileyo kwemitha yokukhanya ehluzwe sisihluzo kuluhlu lokukhanya kwe-ultraviolet ngaphantsi kwe-400mm ubude be-wavelength.Ukongeza, i-CIE No.85 inomgangatho we-irradiance kunye ne-wavelength ukuya kwi-800nm, njengoko imitha ye-xenon arc inokwenza ngcono ukusasazeka kwemitha yelanga phakathi kolu luhlu.

Ngethuba lenkqubo yokuvavanya izixhobo zokuvezwa, i-irradiance inokutshintsha ngenxa yokuguga kwe-xenon arc kunye nenkqubo yokucoca.Olu tshintsho lwenzeka ngokukodwa kuluhlu lwe-ultraviolet, olunempembelelo enkulu ye-photochemical kwizinto ze-polymer.Ke ngoko, akuyimfuneko kuphela ukulinganisa ixesha lokuvezwa, kodwa kunye nokulinganisa ububanzi be-wavelength engaphantsi kwe-400nm okanye i-exposure radiation energy kwi-wavelength ecacisiweyo njenge-340nm, kwaye usebenzise la maxabiso njengemilinganiselo yereferensi yokuguga.

Akunakwenzeka ukulinganisa ngokuchanekileyo imiphumo yeemeko ezahlukeneyo zemozulu kwiingubo.Ke ngoko, kumgangatho wegumbi lovavanyo lwesibane se-xenon, igama elithi ukuguga kwemozulu eyenziweyo lisetyenziselwa ukwahlula ukuguga kwemozulu yendalo.Iglasi yefestile elinganisiweyo yovavanyo lwemitha yelanga ekhankanywe kumgangatho wegumbi lovavanyo lwesibane se-xenon ibizwa ngokuba kukuvezwa kwemitha yokwenziwa.