The Isotopic Composition of Normal Krypton and Xenon
نویسندگان
چکیده
منابع مشابه
Mass Fractionation and the Isotopic Anomalies of Xenon and Krypton in Ordinary Chondrites
The abundance and isotopic composition of all noble gases are reported in the Wellman chondrite, and the abundance and isotopic composition of xenon and krypton are reported in the gases released by stepwise heating of the Tell and Scurry chondrites. Major changes in the isotopic composition of Xe result from radiogenic Xe129 and from variations in the isotopic mass fractionation pattern in the...
متن کاملDistillation of Liquid Xenon to Remove Krypton
A high performance distillation system to remove krypton from xenon was constructed, and a purity level of Kr/Xe = ∼ 3 × 10 was achieved. This development is crucial in facilitating high sensitivity low background experiments such as the search for dark matter in the universe.
متن کاملUse of xenon and krypton for phasing in protein crystallography
Xenon derivatisation is classically performed with hydrophilic additives (e.g. glycerol) to prevent nucleation of ice when the cryoprotectant buffer containing the crystal is flash cooled. The difficulties of obtaining a suitable cryoprotectant buffer, in which crystals are stable for a period of several minutes are, however, rarely reported. Crystals of porcine pancreatic elastase have been us...
متن کاملstudy the effects of low level laser diode on no production and healing of diabetic and cortisone acetate and normal wounded sd rats
nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...
15 صفحه اولNew Infrared Laser Lines in Argon, Krypton, and Xenon
Fourteen new infrared laser transitions in Ar, Kr, and Xe ranging from 3.725 to 17.233 pm are reported. All of the Kr laser transitions and all but oneof the Ar and Xe transitions have upper levels in the s or d state: the majority of the transitions satisfy the condition AK = AJ. Identification of a previously observed, unidentified laser line at 5.804 pm in AI is given. Nobel gas lasers are o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review
سال: 1947
ISSN: 0031-899X
DOI: 10.1103/physrev.72.517