发布求助
文献互助 智能选刊 最新文献

Nuclear Instruments最新文献

筛选
英文 中文
On the theory of the diffusion cloud chamber 论扩散云室的理论
Nuclear Instruments Pub Date : 1958-08-01 DOI: 10.1016/0369-643X(58)90096-3
Igor Saavedra
{"title":"On the theory of the diffusion cloud chamber","authors":"Igor Saavedra","doi":"10.1016/0369-643X(58)90096-3","DOIUrl":"10.1016/0369-643X(58)90096-3","url":null,"abstract":"<div><p>A revision is made of Shutt's theory by using more accurate expressions describing the transport phenomena in the chamber. This leads to a new expression for the temperature gradient. The importance of the correction thus introduced depends upon the particular components of the binary mixture considered.</p></div>","PeriodicalId":100970,"journal":{"name":"Nuclear Instruments","volume":"3 2","pages":"Pages 85-89"},"PeriodicalIF":0.0,"publicationDate":"1958-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-643X(58)90096-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88256492","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: 3
Spectrometre pour particules lourdes 重粒子光谱仪
Nuclear Instruments Pub Date : 1958-08-01 DOI: 10.1016/0369-643X(58)90093-8
L. Bianchi, E. Cotton, C. Mileikowsky
{"title":"Spectrometre pour particules lourdes","authors":"L. Bianchi, E. Cotton, C. Mileikowsky","doi":"10.1016/0369-643X(58)90093-8","DOIUrl":"https://doi.org/10.1016/0369-643X(58)90093-8","url":null,"abstract":"","PeriodicalId":100970,"journal":{"name":"Nuclear Instruments","volume":"55 1","pages":"69-72"},"PeriodicalIF":0.0,"publicationDate":"1958-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74281692","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
20 Mc/s scaling circuit 20mc /s缩放电路
Nuclear Instruments Pub Date : 1958-08-01 DOI: 10.1016/0369-643X(58)90101-4
B. Collinge, G.B. Huxtable
{"title":"20 Mc/s scaling circuit","authors":"B. Collinge,&nbsp;G.B. Huxtable","doi":"10.1016/0369-643X(58)90101-4","DOIUrl":"10.1016/0369-643X(58)90101-4","url":null,"abstract":"<div><p>A scaling circuit is described which will operate at frequencies greater than20 Mc/s. Particular attention is paid to reliable triggering.</p></div>","PeriodicalId":100970,"journal":{"name":"Nuclear Instruments","volume":"3 2","pages":"Pages 116-118"},"PeriodicalIF":0.0,"publicationDate":"1958-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-643X(58)90101-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85841775","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
Fields in slanted-gap excited rectangular ducts 斜隙激励矩形风管中的场
Nuclear Instruments Pub Date : 1958-08-01 DOI: 10.1016/0369-643X(58)90100-2
J. Van Bladel
{"title":"Fields in slanted-gap excited rectangular ducts","authors":"J. Van Bladel","doi":"10.1016/0369-643X(58)90100-2","DOIUrl":"10.1016/0369-643X(58)90100-2","url":null,"abstract":"<div><p>Some features of the electromagnetic field in a rectangular wave-guide, cut in two by a plane making an angle θ with the guide's longitudinal axis, are examined. The field is excited by a voltage applied across the two halves of the guide. Several values of θ, frequency (between zero and cut-off), and aspect ratio of the cross-section are considered. The problem is of interest for the design of particle accelerators, and, with this particular application in mind, data are presented for the energy and momentum kicks which particles experience when crossing the gap.</p></div>","PeriodicalId":100970,"journal":{"name":"Nuclear Instruments","volume":"3 2","pages":"Pages 109-115"},"PeriodicalIF":0.0,"publicationDate":"1958-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-643X(58)90100-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90480428","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
Investigation of a beta-ray spectrometer with a triangular field 带三角形场的射线谱仪的研究
Nuclear Instruments Pub Date : 1958-08-01 DOI: 10.1016/0369-643X(58)90099-9
Ingvar Lindgren
{"title":"Investigation of a beta-ray spectrometer with a triangular field","authors":"Ingvar Lindgren","doi":"10.1016/0369-643X(58)90099-9","DOIUrl":"10.1016/0369-643X(58)90099-9","url":null,"abstract":"<div><p>A long lens beta-ray spectrometer with a pure “triangular” field is here investigated theoretically. A point source as well as a disk source is considered. It is shown that the effect of the source width on the resolution is much smaller with this field than with a uniform field. The spherical aberration is rather large, but the maximum luminosity at a given resolution is larger than with a uniform field. The results are in agreement with experiments.</p></div>","PeriodicalId":100970,"journal":{"name":"Nuclear Instruments","volume":"3 2","pages":"Pages 104-108"},"PeriodicalIF":0.0,"publicationDate":"1958-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-643X(58)90099-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86055144","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
Direct-coupled amplifier for the measurement of small currents 用于测量小电流的直接耦合放大器
Nuclear Instruments Pub Date : 1958-08-01 DOI: 10.1016/0369-643X(58)90094-X
B. Kendall
{"title":"Direct-coupled amplifier for the measurement of small currents","authors":"B. Kendall","doi":"10.1016/0369-643X(58)90094-X","DOIUrl":"https://doi.org/10.1016/0369-643X(58)90094-X","url":null,"abstract":"","PeriodicalId":100970,"journal":{"name":"Nuclear Instruments","volume":"161 1","pages":"73-79"},"PeriodicalIF":0.0,"publicationDate":"1958-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76981950","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
Improved NaI scintillation spectrometer for the study of continuous X-ray spectra 用于连续x射线光谱研究的改进型NaI闪烁光谱仪
Nuclear Instruments Pub Date : 1958-07-01 DOI: 10.1016/0369-643X(58)90044-6
G. Hettinger, N. Starfelt
{"title":"Improved NaI scintillation spectrometer for the study of continuous X-ray spectra","authors":"G. Hettinger,&nbsp;N. Starfelt","doi":"10.1016/0369-643X(58)90044-6","DOIUrl":"10.1016/0369-643X(58)90044-6","url":null,"abstract":"<div><p>The K X-ray escape fraction of a NaI scintillation spectrometer is essentially reduced by letting the collimated X-rays to be studied enter through a narrow well in the crystal.</p></div>","PeriodicalId":100970,"journal":{"name":"Nuclear Instruments","volume":"3 1","pages":"Pages 25-26"},"PeriodicalIF":0.0,"publicationDate":"1958-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-643X(58)90044-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90729918","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: 6
Atomic beam resonance apparatus with six-pole magnets for radioactive isotopes 放射性同位素用六极磁铁原子束共振装置
Nuclear Instruments Pub Date : 1958-07-01 DOI: 10.1016/0369-643X(58)90042-2
Ingvar Lindgren
{"title":"Atomic beam resonance apparatus with six-pole magnets for radioactive isotopes","authors":"Ingvar Lindgren","doi":"10.1016/0369-643X(58)90042-2","DOIUrl":"10.1016/0369-643X(58)90042-2","url":null,"abstract":"<div><p>The construction of an atomic beam resonance apparatus with focusing six-pole magnets for measurements of spins and magnetic moments of radioactive nuclei is reported. The main features are similar to those of the apparatus of Hamilton, Lemonick, and Pipkin<span><sup>†</sup></span>. The principles of the design and of maximizing the intensity are discussed. The effective solid angle, averaged over the velocity distribution of the beam, has been calculated to be about 3 × 10<sup>−4</sup> steradians in a typical case, which is one order of magnitude larger than can be obtained by the conventional method. The apparatus has been used for measurements on four radioactive bismuth isotopes, which will be reported elsewhere.</p></div>","PeriodicalId":100970,"journal":{"name":"Nuclear Instruments","volume":"3 1","pages":"Pages 1-16"},"PeriodicalIF":0.0,"publicationDate":"1958-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-643X(58)90042-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73072390","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: 14
Ion source for radioisotope separation 放射性同位素分离用离子源
Nuclear Instruments Pub Date : 1958-07-01 DOI: 10.1016/0369-643X(58)90046-X
J.O. Burgman , G. Andersson
{"title":"Ion source for radioisotope separation","authors":"J.O. Burgman ,&nbsp;G. Andersson","doi":"10.1016/0369-643X(58)90046-X","DOIUrl":"10.1016/0369-643X(58)90046-X","url":null,"abstract":"<div><p>An ion source of the oscillating electron type with axial magnetic field and end extraction has been constructed for electromagnetic separation of synchrocyclotron-produced radioactive isotopes. A description of the ion source and the results of some systematic investigations of its properties are given.</p><p>The performance of the ion source is illustrated by some recent applications to prepare sources for spallation studies and nuclear spectroscopy.</p></div>","PeriodicalId":100970,"journal":{"name":"Nuclear Instruments","volume":"3 1","pages":"Pages 33-42"},"PeriodicalIF":0.0,"publicationDate":"1958-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-643X(58)90046-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73057879","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: 11
Statistical spread in pulse size of the scintillation spectrometer 闪烁光谱仪脉冲大小的统计扩散
Nuclear Instruments Pub Date : 1958-07-01 DOI: 10.1016/0369-643X(58)90043-4
A. Bisi, L. Zappa
{"title":"Statistical spread in pulse size of the scintillation spectrometer","authors":"A. Bisi,&nbsp;L. Zappa","doi":"10.1016/0369-643X(58)90043-4","DOIUrl":"10.1016/0369-643X(58)90043-4","url":null,"abstract":"<div><p>The results of an experimental investigation concerning the statistical spread of the pulse sizes of the scintillation spectrometer are reported. It was found that for <em>γ</em>-ray energies lower than 800 keV the measured half-width η of the lines fit strictly the relation <em>η</em><sup>2</sup> = <em>α</em> + <em>β</em>/<em>E</em> where the two constants α and β vary slightly from one spectrometer to another. At higher energies the half-widths appear to be considerably smaller than predicted from the previous relation. That is due to the fact that at the high energies the <em>γ</em>-rays are absorbed in the phosphor not only by photoelectric effect, but any combination of processes by which the <em>γ</em>-ray is completely absorbed, can happen. All the experimental results are compared with statistical predictions.</p></div>","PeriodicalId":100970,"journal":{"name":"Nuclear Instruments","volume":"3 1","pages":"Pages 17-24"},"PeriodicalIF":0.0,"publicationDate":"1958-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-643X(58)90043-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90829261","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: 30
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信