1988
DOI: 10.1016/0883-2889(88)90365-6
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Sulfur and selenium isotope separation by distillation

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“…Enrichment of 82 Se is commonly achieved by centrifugation of gaseous selenium hexafluoride (SeF 6 ), an inefficient process that would dominate the cost of the demonstrator. A more attractive approach is isotopic enrichment by cryogenic distillation of hydrogen selenide (H 2 Se), for which a hint of isotopic separation of 82 Se was observed with a meter-long column [29]. We will explore this possibility as part of the Selena program.…”
Section: The Selena 100 Kg Demonstratormentioning
confidence: 99%
“…Enrichment of 82 Se is commonly achieved by centrifugation of gaseous selenium hexafluoride (SeF 6 ), an inefficient process that would dominate the cost of the demonstrator. A more attractive approach is isotopic enrichment by cryogenic distillation of hydrogen selenide (H 2 Se), for which a hint of isotopic separation of 82 Se was observed with a meter-long column [29]. We will explore this possibility as part of the Selena program.…”
Section: The Selena 100 Kg Demonstratormentioning
confidence: 99%
“…The high Q ββ leads to a favorable phase-space factor and is significantly above most interfering γ-ray lines from the uranium and thorium decay chains of natural radioactivity, while the long T 2ν 1/2 leads to a small contribution of two-neutrino double electron events near Q ββ . In addition, selenium can form a wide variety of gases that allow for isotopic enrichment by centrifugation [14] or, potentially, at larger scales by distillation [15].…”
Section: Conceptual Designmentioning
confidence: 99%