Qo’shimcha ma’lumotlar
Spektrometr bilan goniometr difraksion spektrometr sifatida ham ishlatilishi
mumkin (tajriba P5.7.1.2 bayonnomasiga qarang). Bunday konfigurasiyada to’lqin
uzunligini aniqlash uchun kalibrlash egriligi qayta talab qilinmaydi Biroq
spektrlarning intensivligi pastroq, sust chiziqlar ko’pincha ko’rinmaydi. Bundan
tashqari difraksiyaning ko’p miqdordagi tartiblari yuzaga kelib, foydalinalayotgan
panjaraga qarab ustma-ust tushishi mumkin va shu bilan belgilangan maqsadga
xalaqit beradi.
Difraksion panjaradan foydalanilganda spektrometrning ajrata olishi,
odatda, prizmali spektrometrnikiga nisbatan yaxshi. Masalan, tirqishi minimal
kenglikka o’rnatilgan spektrometrning prizmasida ikki Na-D chiziqlar arang
farqlansa, ular Rowland panjarasidan foydalanilgan spektrometrda osongina
ajratilishi va alohida o’lchanishi mumkin.
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