Radiation Physics and Chemistry (1977)最新文献

Goal, strategy and project selection for the radiation processing 辐射处理的目标、策略和项目选择

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90171-2

Ma Zue-Teh , Zhou Liang-Yi

{"title":"Goal, strategy and project selection for the radiation processing","authors":"Ma Zue-Teh , Zhou Liang-Yi","doi":"10.1016/0146-5724(85)90171-2","DOIUrl":"10.1016/0146-5724(85)90171-2","url":null,"abstract":"<div><p>In the past two decades, a number of results in the field of R/D of the radiation processing have been attained in China. Many of them are of great value in application and have been put into pilot plant or trial production. From the viewpoint of system analysis, the radiation processing as a technological system follows its own law of development, now entering a stage of rapid development in the areas of R/D and application. As a favourable factor for the development of radiation, two significant policies have been formulated; first, the policy of development of science and technology should contribute to the development of national economy; secondly the policy of the development of atomic science and technology emphasis should be shifted to civil purposes. These two policies are bound to greatly promote the R/D of the radiation processing, especially its transfer and diffusion. Now, the linkage between the radiation processing and national economy is getting closer and closer. A lot of proposals for investment in this field have been put forward recently. Therefore, it is vital to make investigations into the strategy for the developing, economic effectiveness and the criteria in project selection of the radiation processing.</p><p>In this article, we study the present state and the Characteristics of the technology transfer of radiation processing in China from the viewpoint of system analysis and of effectiveness. We also analyse this issue in the light of the concept of life cycle of technology so as to establish, we hope, a realistic goal and an appropriate development strategy. Based on this, a model of project selection and suitable forms of diffusion and transfer are suggested.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"25 4","pages":"Pages 893-897"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-5724(85)90171-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53760422","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: 0

Low energy electron scanners and their applications in the industry 低能量电子扫描仪及其在工业中的应用

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90146-3

Peter Holl

引用次数: 3

Transfer coating by electron initiated polymerization 电子引发聚合转移涂层

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90139-6

Sam V. Nablo

{"title":"Transfer coating by electron initiated polymerization","authors":"Sam V. Nablo","doi":"10.1016/0146-5724(85)90139-6","DOIUrl":"10.1016/0146-5724(85)90139-6","url":null,"abstract":"<div><p>The high speed and depth of cure possible with electron initiated monomer/oligomer coating systems provide many new opportunities for approaches to product finishing. Moreover, the use of transfer or cast coating using films or metallic surfaces offers the ability to precisely control the surface topology of liquid film surfaces during polymerization.</p><p>Transfer coating such as with textiles has been a commercial process for many years and the synergistic addition of EB technology permits the manufacture of unusual new products. One of these, the casting paper used in the manufacture of vinyl and urethane fabrics, is the first EB application to use a drum surface for pattern replication in the coating. In this case the coated paper is cured against, and then released from, an engraved drum surface.</p><p>Recent developments in the use of plastic films for transfer have been applied to the manufacture of transfer metallized and coated paper and paperboard products for packaging. Details of these and related processes will be presented as well as a discussion of the typical product areas (e.g. photographic papers, release papers, magnetic media) using this high speed transfer technology.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"25 4","pages":"Pages 599-608"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-5724(85)90139-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53758819","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

Radiation sources of the institute for research, production, and application of radioisotopes, praha, and their capabilities 放射性同位素研究、生产和应用所的辐射源、praha及其能力

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90215-8

E. Plander, M. Pesˇek, Z. Pra´sˇil, M. Rˇerˇichova´, J. Zaha´lka

引用次数: 1

Photoelectrochemical studies of gamma-irradiated iron oxides γ辐照氧化铁的光电化学研究

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90204-3

R. Schiller, L. Nyikos, T. Pajkossy, R. Mehnert

引用次数: 2

Kinetics and mechanism of thermoradiation decomposition of water vapour and its mixtures with acceptors 水蒸气及其与受体混合物的热辐射分解动力学和机理

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90209-2

B.G. Dzantiev, A.N. Ermakov, B.M. Zhitomirsky, Yu.P. Klimov, V.N. Popov

引用次数: 2

The radiation grafting of N-vinyl-2-pyrrolidone to segmented polyetherurethane in alkaline meduim n -乙烯基-2-吡咯烷酮在碱性介质中辐射接枝到聚聚氨酯

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90129-3

Ha Hongfei , Pan Yingdong , Wu Jilan , Yang Fuliang , Feng Xinde

引用次数: 7

Spectra of electrons trapped in ethylene glycol-hexamethylphosphoric triamide glasses 困在乙二醇-六甲基磷酸三酰胺玻璃中的电子光谱

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90106-2

E. Hankiewicz, Cz. Stradowski, M. Wolszczak, J. Kroh

引用次数: 3

On the use of a microwave linear accelerator for control of carrier lifetime in electronic silicon devices 微波直线加速器在电子硅器件载流子寿命控制中的应用

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90181-5

L. Barberis, M. Icardi, M. Portesine, S. Tenconi, P.G. Di Marco, A. Martelli, P.G. Fouchi

{"title":"On the use of a microwave linear accelerator for control of carrier lifetime in electronic silicon devices","authors":"L. Barberis, M. Icardi, M. Portesine, S. Tenconi, P.G. Di Marco, A. Martelli, P.G. Fouchi","doi":"10.1016/0146-5724(85)90181-5","DOIUrl":"10.1016/0146-5724(85)90181-5","url":null,"abstract":"<div><p>The possibility of using a 12 MeV linear accelerator for control of minority carrier lifetime in silicon power rectifiers and thyristors to be used at high frequencies has been investigated. Electron irradiation of these devices has been used in place of metallic diffusion and <sup>60</sup>Co gamma irradiation. A comparison with the latter two techniques is made. The relation between absorbed dose and high and low injection lifetimes (τ<span>HL</span> and τ<span>LL</span>) has been studied for diodes and from the linear relationship <span><math><mtext>1</mtext><mtext>τ</mtext><mtext> = </mtext><mtext>1</mtext><mtext>τ</mtext><msub><mi></mi><mn>0</mn></msub><mtext> + KD</mtext></math></span> found, values for the damage constant have been calculated. The dependence of the stability of the electrical characteristics of the silicon devices after electron irradiation on the annealing process at 150, 200, and 360°C has been analyzed. The conclusions drawn from this study are that charge lifetime control in semiconductors is feasible by high energy electrons because electron irradiation provides the more precise, uniform, and reproducible method of lifetime control. In addition this technique is much better than the conventional metal diffusion or gamma irradiation in raising the quality and end-product rate of these devices.</p></div>","PeriodicalId":101054,"journal":{"name":"Radiation Physics and Chemistry (1977)","volume":"26 2","pages":"Pages 165-172"},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-5724(85)90181-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53760990","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: 5

Radiation chemistry of polyuridylic acid in aqueous solution 水溶液中聚尿苷酸的辐射化学

Radiation Physics and Chemistry (1977) Pub Date : 1985-01-01 Epub Date: 2002-10-09 DOI: 10.1016/0146-5724(85)90196-7

D. Schulte-Frohlinde, E. Bothe, G. Behrens

引用次数: 6