Continuous Growth of Alkali‐Halides: Physics and Technology

Sidletskiy, O.

doi:10.1002/9783527632879.ch16

Cited by 1 publication

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In such conditions, the melt in the vicinity of the solid-liquid interface became excessively saturated with dissolved gases. As a result, bubble nucleation was initiated at the growth interface with their following capture by the growing crystal [16].…”

Section: Bubble Capturementioning

confidence: 99%

Growth of 2 Inch Eu-doped SrI2 single crystals for scintillator applications

Yoshikawa

Shoji

Yokota

et al. 2016

Journal of Crystal Growth

View full text Add to dashboard Cite

A vertical Bridgman (VB) crystal growth process was established using modified micropulling-down (μ-PD) crystal growth system with a removable chamber that was developed for the growth of deliquescent halide single crystals because conventional μ-PD method does not allow growth of large bulk single crystals. Eu:SrI 2 crystals were grown from the melt of (Sr 0.98 Eu 0.02 )I 2 composition using carbon crucibles. Undoped μ-PD SrI 2 crystals were used as seeds that were affixed to the bottom of the crucible. All the preparations preceding the growths and the hot zone assembling were performed in a glove box with Ar gas. Then the removable chamber was taken out of the glove box, attached to the μ-PD system, connected with a Turbo Molecular pump, and evacuated down to 10 -4 Pa at ~300°C. After the baking procedure, high purity Ar gas (6N) was injected into the chamber. The crucible was heated by a high frequency induction coil up to the melting point of Eu:SrI 2 . After melting the starting materials, the crucible was displaced in downward direction for the crystal growth and then cooled down to room temperature. Thus, 2 inch and crack-free Eu:SrI 2 bulk crystals were produced. The crystals had high transparency and did not contain any visible inclusions.The crystals were cut and polished in the glove box and then sealed in an aluminum container with an optical window for characterization. The details of the crystal growth are discussed.

show abstract

Section: Bubble Capturementioning

confidence: 99%