Pho t onAssa y Ma x Chrysos fagship pr oduc t o f er s a r e v olution in gold analysis f or the miner als industry F ast accur a t e fully aut oma t ed and chemistry fr ee assa y o f or es pulps solutions and o ther pr ocess ma t erials is no w possible Pho t onAssa y T echnology Pho t onAssa y uses a highpo w er elec tr onic X r a y sour ce t o ac tiv a t e gold a t oms con t ained in a sample These ac tiv a t ed a t oms then emit a unique signa tur e tha t can be measur ed t o accur a t ely de t ermine gold con t en t Bo th the sour ce X r a ys and signa tur e gamma r a ys ar e e xtr emely pene tr a ting meaning tha t a truebulk analysis o f lar ge samples is possible The assa y is also independen t o f the chemical or ph ysical f orm o f the sample T r aditionally har d t oassa y ma t erials such as carbon pulps concen tr a t es or highly r e fr ac t ory or es can no w be measur ed str aigh tf orw ar dly The lar ge sample siz e typically ar ound 0 5 k g and pene tr a ting analysis mean tha t sample pr epar a tion is signifcan tly r educed compar ed t o tr aditional assa y me thods Coar se ma t erials and slurries can be dir ec tly measur ed B y adjusting the oper a ting conditions o f the sour ce and measuring dif er en t signa tur es Pho t onAssa y can be used t o measur e a r ange o f o ther elemen t s including copper and silv er Applica tions Pho t onAssa y is applicable acr oss the mining v alue chain It pr o vides a dir ec t r eplacemen t f or con v en tional chemical analysis me thods such as fr e assa y Applica tion ar eas include Mine planning Gr ade con tr ol and blending Pr ocess monit oring Bene ft s Rapid turnar ound with analysis time o f a f e w minut es T ruebulk measur emen t o f 500 g samples L it tle or no sample pr epar a tion r equir ed Fully aut oma t ed Chemistry fr ee no t o xic or caustic r eagen t s r equir ed R educed labour r equir emen t s A ccur a t e and sensitiv e analysis Non destruc tiv e Principle o f Pho t onAssa y highener gy X r a ys e x cit e gold a t oms in a sample These emit char ac t eristic gammar a ys tha t can be de t ec t ed and coun t ed t o de t ermine gold gr ade e v en inside lar ge samples X ray 5 11 k eV 2 79 k eV 2 79 k eV n Copper 63 Cu Au Au Copper 62 Gold 19 7 Gold 19 7 X ray L ar ge v olume samples with r educed pr epar a tion