International Journal for Radiation Physics and Chemistry最新文献_第4页

World's leading nuclear scientists to convene November 14–19 in Washington, D.C. 世界顶尖的核科学家将于11月14日至19日在华盛顿特区召开会议

International Journal for Radiation Physics and Chemistry Pub Date : 1976-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0020-7055(76)90049-8

引用次数: 0

Gamma radiolysis of 3-methylpentane and ethanol glasses containing triphenylamine 含三苯胺的3-甲基戊烷和乙醇玻璃的γ射线溶解

International Journal for Radiation Physics and Chemistry Pub Date : 1976-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0020-7055(76)90027-9

S.C. Srinivasan, James E. Thean

{"title":"Gamma radiolysis of 3-methylpentane and ethanol glasses containing triphenylamine","authors":"S.C. Srinivasan, James E. Thean","doi":"10.1016/0020-7055(76)90027-9","DOIUrl":"10.1016/0020-7055(76)90027-9","url":null,"abstract":"<div>Gamma irradiation of a 3-methylpentane (3MP) glass containing triphenylamine (TPA) at 72–74K produces the trapped electron (e3MP−) and another negative species (eTPA−). Like eTPA− absorbs in the I.R. with a peak at 1.6 μm. In contrast with e3MP−, eTPA− is not bleached by 1.9 μm light, has a narrower absorption band, and exhibits a broader E.S.R. singlet with ΔHms = 6.6 G. At 72K, the 100 eV yield, G(eTPA−), increases with increase in TPA concentration and has the value 1.3 at 10−2 mol dm−3 TPA while G(e3MP− decreases from 0.4 in neat 3MP to 0.1 at 10−2 mol dm−3 TPA. Gamma irradiation of an ethanol glass containing TPA at 77K does not produce an infrared absorption but produces peaks at 440 and 410nm in addition to the trapped-electron peak at 540nm. The peaks at 440 and 410nm are attributed to TPA− because absorbance at these peaks increases with increase in TPA concentration and that at 540nm decreases. The totality of the results for alcohol and 3-MP glasses suggests that eTPA− is an electron in a trap similar to that of e3MP− but modified by the presence of a TPA molecule whose positive nitrogen end is oriented toward the electron.</div>","PeriodicalId":100688,"journal":{"name":"International Journal for Radiation Physics and Chemistry","volume":"8 5","pages":"Pages 589-593"},"PeriodicalIF":0.0,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-7055(76)90027-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90536551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Excited states in the radiation chemistry of gaseous diatomic hydrides 气态双原子氢化物辐射化学中的激发态

International Journal for Radiation Physics and Chemistry Pub Date : 1976-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0020-7055(76)90067-X

D.A. Armstrong, C. Willis

引用次数: 4

Electron impact induced electronic excitation and molecular dissociation 电子冲击诱导电子激发和分子解离

International Journal for Radiation Physics and Chemistry Pub Date : 1976-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0020-7055(76)90070-X

L.S. Polak, D.I. Slovetsky

引用次数: 38

Radioluminescence of methylcyclohexane in the glassy state 甲基环己烷在玻璃态的放射发光

International Journal for Radiation Physics and Chemistry Pub Date : 1976-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0020-7055(76)90069-3

J. Kroh, R. Leszczyński, J. Mayer

引用次数: 3

Some aspects of vacuum ultraviolet radiation physics 真空紫外线辐射物理学的一些方面

International Journal for Radiation Physics and Chemistry Pub Date : 1976-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0020-7055(76)90091-7

W.C. Price

引用次数: 0

Pulse radiolysis study on tetra-alkylammonium hydroxides in alkaline solutions containing O2 and N2O 四烷基氢氧铵在含O2和N2O碱性溶液中的脉冲辐射分解研究

International Journal for Radiation Physics and Chemistry Pub Date : 1976-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0020-7055(76)90018-8

K. Bobrowski, J.P. Suwalski, Z.P. Zagórski

{"title":"Pulse radiolysis study on tetra-alkylammonium hydroxides in alkaline solutions containing O2 and N2O","authors":"K. Bobrowski, J.P. Suwalski, Z.P. Zagórski","doi":"10.1016/0020-7055(76)90018-8","DOIUrl":"10.1016/0020-7055(76)90018-8","url":null,"abstract":"<div>The reactivity of the oxide radical ion, O−, and the decay kinetics of the ozonide ion, O3−, have been investigated in aqueous solutions at pH 12·8, in the presence of tetramethyl-, tetraethyl-, tetrapropyl- and tetrabutylammonium ions, O2 and N2O. Using pulse radiolysis to follow the O3− kinetics gives information on the competition of O2 and R4N+ for O−. Absolute rate constants for these reactions are: 3·0 × 108 dm3 mol−1 s−1 for O− + (CH3)4N+, 1·0 × 109 dm3 mol−1 s−1 for O− + (C2H5)4N+, 1·3 × 109 dm3 mol−1 s−1 for O− + (C3H7)4N+ and 2·2 × 109 dm3 mol−1 s−1 for O− + (C4H9)4N+.The decay of O3− occurs through the thermal dissociation reaction, O3 ⇌ O2 + O−, for which the absolute rate constant at 22°C was found to be 6·2 ± 1·2 × 103 s−1.</div>","PeriodicalId":100688,"journal":{"name":"International Journal for Radiation Physics and Chemistry","volume":"8 5","pages":"Pages 527-531"},"PeriodicalIF":0.0,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-7055(76)90018-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82169136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Fragmentation of excited molecules and ions in the radiolysis of hydrocarbons 在碳氢化合物的放射性分解中受激发的分子和离子的破碎

International Journal for Radiation Physics and Chemistry Pub Date : 1976-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0020-7055(76)90064-4

Shoji Shida , Yoshihiko Hatano

引用次数: 18

Excited states in the radiation chemistry of gaseous diatomic hydrides 气态双原子氢化物辐射化学中的激发态

International Journal for Radiation Physics and Chemistry Pub Date : 1976-01-01 DOI: 10.1016/0020-7055(76)90067-X

D. Armstrong, C. Willis