Crystal growth and characterization of 9,10-diphenylanthracene

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• 作者：Edgar V. van Loef ; Sharmistha Mukhopadhyay ; Natalia Zaitseva ; Steve Payne ; Kanai S. Shah
• 关键词：A1. Characterization ; A1. Crystal morphology ; A2. Bridgman technique ; A2. Growth from solutions ; B1. Organic compounds ; B2. Scintillator materials
• 刊名：Journal of Crystal Growth
• 出版年：2012
• 出版时间：1 August, 2012
• 年：2012
• 卷：352
• 期：1
• 页码：103-105
• 全文大小：455 K

文摘

In this paper we report on the crystal growth and characterization of 9,10-diphenylanthracene. Crystals of 9,10-diphenylanthracene (DPA) were grown by the solution growth technique as well as the vertical Bridgman method. In case of the solution growth technique, several organic solvents were investigated including heptane, cyclohexane, toluene, and p-xylene. The largest crystals of the highest quality were obtained from toluene and xylene. In the case of vertical Bridgman, evacuated silica ampoules were used to grow large single crystals of DPA. Crystals grown by this method exhibit excellent scintillation properties.

Radioluminescence spectra of DPA crystals exhibit a broad emission band peaking at 475 nm. DPA crystals show high light yields of up to 20,000 ph/MeV and a fast scintillation decay of less than 20 ns. Fast neutron detection was achieved using a ²⁵²Cf source.