International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes最新文献_第2页

A thin dyed-plastic dosimeter for large radiation doses 一种用于大辐射剂量的染色塑料剂量计

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes Pub Date : 1992-12-01 DOI: 10.1016/0883-2889(92)90179-I

F.Abdel Rehim , S. Ebraheem , Wei-Zhen Ba , W.L. McLaughlin

{"title":"A thin dyed-plastic dosimeter for large radiation doses","authors":"F.Abdel Rehim , S. Ebraheem , Wei-Zhen Ba , W.L. McLaughlin","doi":"10.1016/0883-2889(92)90179-I","DOIUrl":"10.1016/0883-2889(92)90179-I","url":null,"abstract":"<div>A commercially available, thin, dyed-plastic film (mean thickness 30 μm) having a transparent green color, changes color progressively to brown shades and then to a deep red shade upon irradiation at successively higher values of absorbed dose (gamma radiation) in the range 8–60 kGy. The analysis for dosimetry is made with spectrophotometric measurements (at visible light wavelengths) of pre-irradiation absorbance, A0, and radiation-induced absorbance, Ai. Either the wavelength of the maximum of the absorption band that bleaches upon irradiation (γ = 425 nm) or the wavelengths of the maxima of the two overlapping radiation-induced absorption bands (γ = 525 or 556 nm) are used to make these measurements. The most reproducible calibration consists of the ratio, <math><mtext>A</mtext><msub><mi></mi><mn><mtext>i</mtext></mn></msub><mtext>A</mtext><msub><mi></mi><mn>0</mn></msub></math>, at a given wavelength, as a function of the absorbed dose. The new film dosimeter is flexible, rugged, and relatively stable at temperatures between −80°C and +50°C, and in daylight. The radiation-induced color, in terms of the absorbance, Ai, at selected wavelengths, is unstable for about two days subsequent to irradiation, after which the values of <math><mtext>A</mtext><msub><mi></mi><mn><mtext>i</mtext></mn></msub><mtext>A</mtext><msub><mi></mi><mn>0</mn></msub></math> remain stable for at least several months, even under illumination with white fluorescent or indirect daylight. The film color is unstable at high temperatures (60°C and above). The film sensitivity to gamma radiation increases gradually with rise in irradiation temperature up to 50°C and then decreases sharply at temperatures above 60°C. There is only slight variation of response with change in relative humidity during irradiation.</div>","PeriodicalId":14288,"journal":{"name":"International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes","volume":"43 12","pages":"Pages 1503-1510"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0883-2889(92)90179-I","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81735885","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: 16

Study of 99Mo and 111Ag decays 99Mo和111Ag的衰变研究

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes Pub Date : 1992-12-01 DOI: 10.1016/0883-2889(92)90173-C

Jatinder Goswamy, Bakhshish Chand, Devinder Mehta, Nirmal Singh, P.N. Trehan

引用次数: 4

Contents of volume 43 第43卷目录

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes Pub Date : 1992-12-01 DOI: 10.1016/0883-2889(92)90189-L

引用次数: 0

Instrumental neutron activation analysis of some ayurvedic medicines—I 几种阿育吠陀药物的仪器中子活化分析ⅰ

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes Pub Date : 1992-12-01 DOI: 10.1016/0883-2889(92)90181-D

N.S. Rajurkar, M.S. Vinchurkar

引用次数: 3

Comparative study on the influence of bases on (3-N-[11C]methyl)spiperone synthesis 碱基对(3-N-[11C]甲基)spiperone合成影响的比较研究

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes Pub Date : 1992-12-01 DOI: 10.1016/0883-2889(92)90185-H

Claudio Pascali, Ren Iwata , Tatsuo Ido

引用次数: 4

The feeding of the superdeformed band in 148Gd 148Gd超变形带的进给

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes Pub Date : 1992-12-01 DOI: 10.1016/0883-2889(92)90178-H

N. Mansour

引用次数: 0

Preparation of [131I]lipiodol as a hepatoma therapeutic agent [131I]脂醇作为肝癌治疗剂的制备

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes Pub Date : 1992-12-01 DOI: 10.1016/0883-2889(92)90168-E

Jiunn-Guang Lo , Ai-Yih Wang , Yuan-Yaw Wei , Wing-Yiu Lui , Chin-Wen Chi , Wing-Kai Chan

引用次数: 6

A 62Zn/62Cu generator for the routine production of 62Cu-PTSM 一种62Zn/62Cu发生器，用于62Cu- ptsm的日常生产

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes Pub Date : 1992-12-01 DOI: 10.1016/0883-2889(92)90169-F

G. Bormans , A. Janssen , P. Adriaens , D. Crombez , A. Witsenboer , J. de Goeij , L. Mortelmans , A. Verbruggen

引用次数: 22

Evaluation of desferal as a bifunctional chelating agent for labeling antibodies with Zr-89 desferal作为Zr-89标记抗体的双功能螯合剂的评价

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes Pub Date : 1992-12-01 DOI: 10.1016/0883-2889(92)90170-J

Wilma E. Meijs , Jacobus D.M. Herscheid , Hidde J. Haisma , Herbert M. Pinedo

引用次数: 107

A universal water target loading system with direct in-target liquid level sensing 一种具有直接靶内液位传感的通用靶水加载系统

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes Pub Date : 1992-12-01 DOI: 10.1016/0883-2889(92)90176-F

Richard A. Ferrieri, David L. Alexoff, David J. Schlyer, Alfred P. Wolf

{"title":"A universal water target loading system with direct in-target liquid level sensing","authors":"Richard A. Ferrieri, David L. Alexoff, David J. Schlyer, Alfred P. Wolf","doi":"10.1016/0883-2889(92)90176-F","DOIUrl":"10.1016/0883-2889(92)90176-F","url":null,"abstract":"<div>A reliable remote water target loading system has been designed and fabricated around the operation of a single pneumatic syringe dispenser that accesses one of two water reservoirs, filling one or more targets depending on the system configuration. For multiple radionuclide configuration, reservoirs are filled with 18O-enriched water for [18F]fluoride production, and natural abundance water for [13N]nitrate and [13N]nitrite production. When actuated, the system withdraws a calibrated volume of water from a selected reservoir, and automatically dispenses that charge through a short transfer line to the appropriate target. A second actuation then forces the dispenser to purge itself of residual water by dispensing a charge of helium gas through the same line thus completing the transfer of water to the target volume. Direct liquid level sensing inside the target, utilizing the specific resistance response of water, signals the operator that the target is loaded. For single radionuclide configuration, one or both reservoirs can be used with the same type of water, while dispensing is directed to a single target.</div>","PeriodicalId":14288,"journal":{"name":"International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes","volume":"43 12","pages":"Pages 1485-1491"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0883-2889(92)90176-F","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12509118","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