The International journal of applied radiation and isotopes最新文献_第3页

A new mass absorption coefficient for β rays in aluminum 铝中β射线的新质量吸收系数

The International journal of applied radiation and isotopes Pub Date : 1985-12-01 DOI: 10.1016/0020-708X(85)90265-0

S.R. Thontadarya

引用次数: 1

Microbiological and chemical studies on irradiated black pepper 辐照黑胡椒的微生物学和化学研究

The International journal of applied radiation and isotopes Pub Date : 1985-12-01 DOI: 10.1016/0020-708X(85)90262-5

R. Hewamanna, L.W. Boteju

引用次数: 2

Dual collector cycloidal mass spectrometer for precision analysis of hydrogen isotopes 用于氢同位素精确分析的双收集器摆线质谱计

The International journal of applied radiation and isotopes Pub Date : 1985-12-01 DOI: 10.1016/0020-708X(85)90255-8

Stanislaw Halas

引用次数: 6

Sample preparation for hydrogen isotope analysis by mass spectrometry 质谱法分析氢同位素的样品制备

The International journal of applied radiation and isotopes Pub Date : 1985-12-01 DOI: 10.1016/0020-708X(85)90263-7

T. Florkowski

引用次数: 44

Second JARI medal award 第二次获得JARI奖章

The International journal of applied radiation and isotopes Pub Date : 1985-12-01 DOI: 10.1016/0020-708X(85)90244-3

引用次数: 0

11C-labelling of indolealkylamine alkaloids and the comparative study of their tissue distributions 吲哚烷基胺类生物碱的11c标记及其组织分布的比较研究

The International journal of applied radiation and isotopes Pub Date : 1985-12-01 DOI: 10.1016/0020-708X(85)90257-1

Toshihiro Takahashi , Kazuhiro Takahashi , Tatsuo Ido, Kazuhiko Yanai , Ren Iwata, Kiichi Ishiwata, Shigeo Nozoe

{"title":"11C-labelling of indolealkylamine alkaloids and the comparative study of their tissue distributions","authors":"Toshihiro Takahashi , Kazuhiro Takahashi , Tatsuo Ido, Kazuhiko Yanai , Ren Iwata, Kiichi Ishiwata, Shigeo Nozoe","doi":"10.1016/0020-708X(85)90257-1","DOIUrl":"10.1016/0020-708X(85)90257-1","url":null,"abstract":"<div>Five indolealkylamines (N,N-dimethyltryptamine, N-methyltryptamine, bufotenine, O-methylbufotenine, N,N,N-trimethyltryptamine iodide) were labeled with 11C by use of 11CH3I. The labeled compounds were synthesized with a radiochemical yield of 2–50% (based on trapped 11CH3I) in 20–35 min with radiochemical purities of more than 92%. The tissue distributions of these labeled compounds were investigated in rats. In all cases, the accumulations in the liver, lung and small intestine were high. [11C]DMT and [11C]OMB also accumulated to a large extent in the brain, where their accumulation was retained. Brain uptake of three other radiopharmaceuticals was low. [11C]DMT is the radiopharmaceutical of choice for the study of the serotonin action mechanism in the brain, because it has the highest radiochemical yield and the highest brain uptake of these 11C-labeled compounds.</div>","PeriodicalId":22517,"journal":{"name":"The International journal of applied radiation and isotopes","volume":"36 12","pages":"Pages 965-969"},"PeriodicalIF":0.0,"publicationDate":"1985-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-708X(85)90257-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14984856","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: 22

Bomb conversion of CO2 to graphite for radiocarbon measurement by Tandem Accelerator Mass Spectrometry (TAMS) 用串联加速器质谱法(TAMS)测量放射性碳的CO2 -石墨弹转化

The International journal of applied radiation and isotopes Pub Date : 1985-12-01 DOI: 10.1016/0020-708X(85)90251-0

David C. Lowe, W.J. Judd

引用次数: 2

Ionizing radiation dosimetry in the absorbed dose range 0.01–50 MGy based on resistance and ESR linewidth measurements of organic conducting crystals 基于电阻和ESR线宽测量的有机导电晶体吸收剂量范围0.01-50 MGy的电离辐射剂量学

The International journal of applied radiation and isotopes Pub Date : 1985-11-01 DOI: 10.1016/0020-708X(85)90016-X

L. Zuppiroli, S. Bouffard, J.J. Jacob

{"title":"Ionizing radiation dosimetry in the absorbed dose range 0.01–50 MGy based on resistance and ESR linewidth measurements of organic conducting crystals","authors":"L. Zuppiroli, S. Bouffard, J.J. Jacob","doi":"10.1016/0020-708X(85)90016-X","DOIUrl":"10.1016/0020-708X(85)90016-X","url":null,"abstract":"<div>The materials studied in the present work as high-dose dosimeters are members of a large class of molecular crystals which are organic conductors of electricity. Very different from each other in the details of their molecular and crystal structures, they all behave in the same way when subjected to increasing high doses of radiation, at least from the point of view of their electronic transport properties, because of the quasi-one-dimensional character of the conduction process. Their resistivities increase exponentially with the absorbed dose while their electron spin resonance (ESR) linewidths decrease exponentially. Very small single crystals less than 10 μm thick can be used as dosimeters in the dose range 0.01–50 MGy for γ rays as well as for electron irradiations, by applying four probe resistance measurements. Only a few compounds over a large number of candidates have been irradiated in the present work with γ-rays, low energy x-rays and electrons. In some favourable cases the energy and temperature dependences of the dosimeters have been checked experimentally. Their mass energy absorption coefficients and electron stopping powers have been also calculated. It is hoped to extend this kind of dosimetry to lower and higher doses by trying new compounds from the large family of organic conductors or by improving the resistivity and ESR measurement techniques.</div>","PeriodicalId":22517,"journal":{"name":"The International journal of applied radiation and isotopes","volume":"36 11","pages":"Pages 843-852"},"PeriodicalIF":0.0,"publicationDate":"1985-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-708X(85)90016-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14132065","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: 10

Quantitative autoradiographic measurement of the scattering of protons in a krypton gas target 氪气体靶中质子散射的定量自射线照相测量

The International journal of applied radiation and isotopes Pub Date : 1985-11-01 DOI: 10.1016/0020-708X(85)90015-8

J.J.L. Mulders, L.W.G. Steenhuysen

引用次数: 1

The use of a proprietary organic sample oxidiser to determine 14Co2 and 14C-carbonates of trace level specific radioactivity 使用专有的有机样品氧化剂来测定14Co2和14c -碳酸盐的痕量水平比放射性

The International journal of applied radiation and isotopes Pub Date : 1985-11-01 DOI: 10.1016/0020-708X(85)90026-2

G.E. Lobley , Alexmary Connell , B.T. Watson

引用次数: 3