First attempt to chemically identify element 112.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F01%3A49033159" target="_blank" >RIV/61389005:_____/01:49033159 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

First attempt to chemically identify element 112.

Popis výsledku v původním jazyce

The first attempt to chemically identify one of the recently discovered long-lived isotopes of superheavy elements, namely (283)112 (3 min, SF), made at FLNR, Dubna is reported. The nuclide was produced by fusion of accelerated Ca-48 with a target of natural U, which contained some Nd to simultaneously produce also short-lived Hg nuclides. According to test experiments with Hg, the expected lighter homologue of element 112, both elements can be isolated from the products of the bombardment in metallic state, and transported from the target in flowing He gas to a detection system, where spontaneous fission and alpha decays (49-s Hg-185) were registered using PIPS detectors. The surface of the detectors was covered with a thin layer of An or Pd which ensured the detection of Hg with high efficiency due to its chemisorption on these surfaces. While about three SF events could be expected, not a single one was detected at an upper limit for the production cross section of about one picobar

Název v anglickém jazyce

First attempt to chemically identify element 112.

Popis výsledku anglicky

The first attempt to chemically identify one of the recently discovered long-lived isotopes of superheavy elements, namely (283)112 (3 min, SF), made at FLNR, Dubna is reported. The nuclide was produced by fusion of accelerated Ca-48 with a target of natural U, which contained some Nd to simultaneously produce also short-lived Hg nuclides. According to test experiments with Hg, the expected lighter homologue of element 112, both elements can be isolated from the products of the bombardment in metallic state, and transported from the target in flowing He gas to a detection system, where spontaneous fission and alpha decays (49-s Hg-185) were registered using PIPS detectors. The surface of the detectors was covered with a thin layer of An or Pd which ensured the detection of Hg with high efficiency due to its chemisorption on these surfaces. While about three SF events could be expected, not a single one was detected at an upper limit for the production cross section of about one picobar

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CH - Jaderná a kvantová chemie, fotochemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2001

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

RADIOCHIMICA ACTA

ISSN

0033-8230

e-ISSN

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Svazek periodika

89

Číslo periodika v rámci svazku

11/12

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

3

Strana od-do

743-745

Kód UT WoS článku

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EID výsledku v databázi Scopus

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