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Accelerator mass spectrometry and radioisotope detection at the Argonne FN tandem facility 加速器质谱和放射性同位素检测在阿贡FN串联设施
Nuclear Instruments and Methods Pub Date : 1981-05-15 Epub Date: 2002-10-30 DOI: 10.1016/0029-554X(81)90876-4
Walter Henning, Walter Kutschera, Michael Paul , Robert K. Smither, Edward J. Stephenson , Jan L. Yntema
{"title":"Accelerator mass spectrometry and radioisotope detection at the Argonne FN tandem facility","authors":"Walter Henning,&nbsp;Walter Kutschera,&nbsp;Michael Paul ,&nbsp;Robert K. Smither,&nbsp;Edward J. Stephenson ,&nbsp;Jan L. Yntema","doi":"10.1016/0029-554X(81)90876-4","DOIUrl":"10.1016/0029-554X(81)90876-4","url":null,"abstract":"<div><p>The Argonne FN tandem accelerator and standard components of its experimental heavy-ion research facility have been used as a highly-sensitive mass spectrometer to detect several long-lived radioisotopes and measure their concentrations by counting accelerated ions. Background beams from isobaric nuclei have been eliminated by combining the dispersion from the energy loss in a uniform Al foil stack with the momentum resolution of an Enge split-pole magnetic spectrograph. Radioisotope concentrations in the following ranges have been measured: <sup>14</sup>C/<sup>12</sup>C = 10<sup>−12</sup> to 10<sup>−13</sup>, <sup>26</sup>Al/<sup>27</sup>Al = 10<sup>−10</sup> to 10<sup>−12</sup>, <sup>32</sup>Si/Si = 10<sup>−8</sup> to 10<sup>−14</sup>, <sup>36</sup>Cl/Cl = 10<sup>−10</sup> to 10<sup>−11</sup>. Particular emphasis was placed on exploring to what extent the technique of identifying and counting individual ions in an accelerator beam can be conveniently used to determine nuclear quantities of interest when the measurement involves very low radioisotope concentrations. We are able to demonstrate the usefulness of this method by measuring the <sup>26</sup>Mg(p, n)<sup>26</sup> Al(7.2 × 10<sup>5</sup> yr) cross section at proton energies in the astrophysically interesting range just above threshold, and by accurately determining the previously poorly known half-life of <sup>32</sup>Si.</p></div>","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"184 1","pages":"Pages 247-268"},"PeriodicalIF":0.0,"publicationDate":"1981-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0029-554X(81)90876-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89232950","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: 12
An automated beam-scanner system 自动波束扫描系统
Nuclear Instruments and Methods Pub Date : 1981-05-15 Epub Date: 2002-10-30 DOI: 10.1016/0029-554X(81)90867-3
R. Stensgaard, T. Korsbjerg
{"title":"An automated beam-scanner system","authors":"R. Stensgaard,&nbsp;T. Korsbjerg","doi":"10.1016/0029-554X(81)90867-3","DOIUrl":"10.1016/0029-554X(81)90867-3","url":null,"abstract":"<div><p>Various beam-scanner systems are reviewed and some common problems, such as the need for gain-switched preamplifiers and the difficulty in obtaining a comprehensible and correctly phased display, are discussed. A system that overcomes these problems by means of logarithmic AGC preamplifiers and electronic trace splitting and phase locking is described.</p></div>","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"184 1","pages":"Pages 197-202"},"PeriodicalIF":0.0,"publicationDate":"1981-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0029-554X(81)90867-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83094942","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
Superconducting cyclotron in strasbourg 斯特拉斯堡的超导回旋加速器
Nuclear Instruments and Methods Pub Date : 1981-05-15 Epub Date: 2002-10-30 DOI: 10.1016/0029-554X(81)90871-5
G. Frick
{"title":"Superconducting cyclotron in strasbourg","authors":"G. Frick","doi":"10.1016/0029-554X(81)90871-5","DOIUrl":"10.1016/0029-554X(81)90871-5","url":null,"abstract":"<div><p>A group is working at the Centre de Recherches Nucléaires in Strasbourg on the design of a compact superconducting cyclotron (<em>K</em> = 500). The main parameters of the accelerator required to cover the needs expressed by the physicists are presented and discussed. Three different modes of operation are considered at present: internal source, external high charge state source and upgraded MP tandem injection. Some recent results, obtained in Strasbourg for ion stripping and of interest in the injection problem are also presented.</p></div>","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"184 1","pages":"Pages 223-226"},"PeriodicalIF":0.0,"publicationDate":"1981-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0029-554X(81)90871-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76710608","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
The north american MP tandem accelerators 北美MP串联加速器
Nuclear Instruments and Methods Pub Date : 1981-05-15 Epub Date: 2002-10-30 DOI: 10.1016/0029-554X(81)90859-4
P. Thieberger, H.E. Wegner, M. McKeown, R. Lindgren, N. Burn, J.H. Broadhurst, T.S. Lund, T.E. Miller, K. Sato, C.E.L. Gingell, T.A. Barker, P.D. Parker, D.A. Bromley
{"title":"The north american MP tandem accelerators","authors":"P. Thieberger,&nbsp;H.E. Wegner,&nbsp;M. McKeown,&nbsp;R. Lindgren,&nbsp;N. Burn,&nbsp;J.H. Broadhurst,&nbsp;T.S. Lund,&nbsp;T.E. Miller,&nbsp;K. Sato,&nbsp;C.E.L. Gingell,&nbsp;T.A. Barker,&nbsp;P.D. Parker,&nbsp;D.A. Bromley","doi":"10.1016/0029-554X(81)90859-4","DOIUrl":"10.1016/0029-554X(81)90859-4","url":null,"abstract":"<div><p>The main features of the six North American MP tandem Van de Graaff accelerators are summarized as well as some of their main performance characteristics. The latest accelerator-related studies, developments and improvements are described for each facility. Ongoing and proposed future developments at some of these laboratories are briefly discussed.</p></div>","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"184 1","pages":"Pages 121-144"},"PeriodicalIF":0.0,"publicationDate":"1981-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0029-554X(81)90859-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89665159","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: 7
The 25 MV tandem accelerator at oak ridge 橡树岭的25毫伏串联加速器
Nuclear Instruments and Methods Pub Date : 1981-05-15 Epub Date: 2002-10-30 DOI: 10.1016/0029-554X(81)90860-0
C.M. Jones
{"title":"The 25 MV tandem accelerator at oak ridge","authors":"C.M. Jones","doi":"10.1016/0029-554X(81)90860-0","DOIUrl":"10.1016/0029-554X(81)90860-0","url":null,"abstract":"<div><p>A new heavy-ion accelerator facility is under construction at the Oak Ridge National Laboratory. A brief description of the scope and status of this project is presented with emphasis on the first operational experience with the 25 MV tandem accelerator.</p></div>","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"184 1","pages":"Pages 145-151"},"PeriodicalIF":0.0,"publicationDate":"1981-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0029-554X(81)90860-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73629088","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: 13
Column and laddertron tests at the XTU tandem of the laboratori nazionali di Legnaro 列格纳罗国家实验室XTU串联柱梯试验
Nuclear Instruments and Methods Pub Date : 1981-05-15 Epub Date: 2002-10-30 DOI: 10.1016/0029-554X(81)90847-8
F. Cervellera, C. Signorini
{"title":"Column and laddertron tests at the XTU tandem of the laboratori nazionali di Legnaro","authors":"F. Cervellera,&nbsp;C. Signorini","doi":"10.1016/0029-554X(81)90847-8","DOIUrl":"10.1016/0029-554X(81)90847-8","url":null,"abstract":"<div><p>The column structure of the XTU tandem Van de Graaff generator at Legnaro has been successfully tested up to 20.3 MV in +7.3 bar SF<sub>6</sub> gas. The laddertron charging system adopted has been able to deliver up to 400 μA charging current per chain.</p></div>","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"184 1","pages":"Pages 49-54"},"PeriodicalIF":0.0,"publicationDate":"1981-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0029-554X(81)90847-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74154254","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
Use of a laddertron chain in Orsay MP tandem 在Orsay MP串联中梯子链的使用
Nuclear Instruments and Methods Pub Date : 1981-05-15 Epub Date: 2002-10-30 DOI: 10.1016/0029-554X(81)90851-X
P. Bretonneau, M. Dumail, B. Waast
{"title":"Use of a laddertron chain in Orsay MP tandem","authors":"P. Bretonneau,&nbsp;M. Dumail,&nbsp;B. Waast","doi":"10.1016/0029-554X(81)90851-X","DOIUrl":"10.1016/0029-554X(81)90851-X","url":null,"abstract":"<div><p>We decided to use a laddertron at the Orsay MP tandem in place of the belt, the lifetime of which was too short. The new charging system was installed at the beginning of 1979 and, after various failures during the first months of operation, is now reliable. A short review of the accelerator's improvements is given, as well as the operating characteristics since the installation of the laddertron.</p></div>","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"184 1","pages":"Pages 73-78"},"PeriodicalIF":0.0,"publicationDate":"1981-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0029-554X(81)90851-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80160678","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
Limits to solid solubility in ion implanted silicon 离子注入硅中固体溶解度的限制
Nuclear Instruments and Methods Pub Date : 1981-04-15 Epub Date: 2003-04-30 DOI: 10.1016/0029-554X(81)90712-6
J.S. Williams, R.G. Elliman
{"title":"Limits to solid solubility in ion implanted silicon","authors":"J.S. Williams,&nbsp;R.G. Elliman","doi":"10.1016/0029-554X(81)90712-6","DOIUrl":"10.1016/0029-554X(81)90712-6","url":null,"abstract":"<div><p>High resolution Rutherford backscattering and channeling has been employed to measure the substitutional solubility of Ar, As, In, Sb and Pb, implanted into (100) and (111) silicon. Results indicate that solid solubilities far exceeding maximum equilibrium values can be achieved in (100) implanted silicon via solid phase epitaxy during carefully controlled furnace annealing at temperatures below 600°C. Such behaviour has previously been observed only following pulsed laser or electron beam annealing. Intriguing redistribution effects have been observed for In and Pb implants which provide considerable insight into impurity trapping mechanisms operative during solid phase epitaxy. Preliminary measurements indicate a tendency for the implant species to come out of solution after subsequent annealing at 1000°C.</p></div>","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"182 ","pages":"Pages 389-395"},"PeriodicalIF":0.0,"publicationDate":"1981-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0029-554X(81)90712-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81334174","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: 48
Post-implantation processes in semiconductors 半导体的植入后工艺
Nuclear Instruments and Methods Pub Date : 1981-04-15 Epub Date: 2002-10-30 DOI: 10.1016/0029-554X(81)90778-3
G. Foti
{"title":"Post-implantation processes in semiconductors","authors":"G. Foti","doi":"10.1016/0029-554X(81)90778-3","DOIUrl":"10.1016/0029-554X(81)90778-3","url":null,"abstract":"<div><p>Ion implanted semiconductors were investigated after laser and electron beam annealing. Partially damaged crystal and amorphous layers exhibit a different behavior after irradiation. Free-of-defects layers can be obtained by using cw-scanning or a single-pulse beam. Redistribution and incorporation of impurities depends on the annealing conditions.</p></div>","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"182 ","pages":"Pages 573-579"},"PeriodicalIF":0.0,"publicationDate":"1981-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0029-554X(81)90778-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88484665","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
Retardation and suppression of nickel silicide formation by N+ implantation N+注入延缓和抑制硅化镍的形成
Nuclear Instruments and Methods Pub Date : 1981-04-15 DOI: 10.1016/0029-554X(81)90793-X
D. M. Scott, L. Wielunski, H. Seefeld, M. Nicolet
{"title":"Retardation and suppression of nickel silicide formation by N+ implantation","authors":"D. M. Scott, L. Wielunski, H. Seefeld, M. Nicolet","doi":"10.1016/0029-554X(81)90793-X","DOIUrl":"https://doi.org/10.1016/0029-554X(81)90793-X","url":null,"abstract":"","PeriodicalId":100971,"journal":{"name":"Nuclear Instruments and Methods","volume":"5 1","pages":"661-666"},"PeriodicalIF":0.0,"publicationDate":"1981-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78437933","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
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