On quality requirements to the barium fluoride crystals
نویسنده
چکیده
This report summarizes the quality requirements to the barium fluoride (BaF 2 ) crystals for constructing a high precision electromagnetic calorimeter at future hadron colliders . The basic property of BaF2 crystals and the design and performance of a BaF2 calorimeter are presented . The emphasis of the discussion is in the radiation resistance of the current production BaF2 crystals. An approach to implement optical bleaching in situ is also presented . By using optical bleaching current production quality BaF2 crystals could serve as an excellent candidate to construct a precision calorimeter at future hadron colliders .
منابع مشابه
Light yield and surface treatment of barium fluoride crystals *
We report on a study of the light yield and surface treatment of barium fluoride (BaF2) scintillation crystals. Using a bialkali photocathode the photoelectron (p.e.) yield of BaF, crystals was measured to be 130 p.e./MeV for the fast components and 700 p.e./MeV for the slow component. A somewhat hygroscopic nature for the BaF, is found. Teflon film was found to be the best wrapping material fo...
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