The International journal of applied radiation and isotopes最新文献_第7页

Photonuclear production of 18F from F, Ne and (metallic) Na 从F、Ne和(金属)Na中光核生产18F

The International journal of applied radiation and isotopes Pub Date : 1985-09-01 DOI: 10.1016/0020-708X(85)90042-0

M. Van der Leij, B.W. Van Halteren, G.A. Brinkman

引用次数: 4

Measurement of differential scattering cross section of NaI for 59.6 keV gamma rays NaI对59.6 keV γ射线的微分散射截面测量

The International journal of applied radiation and isotopes Pub Date : 1985-09-01 DOI: 10.1016/0020-708X(85)90039-0

Cihan Özmutlu

引用次数: 15

Measurement of yield and cross section for the 27Al (γ, 2p) 25Na reaction with a clinical linear accelerator 用临床直线加速器测量27Al (γ， 2p) 25Na反应的产率和截面

The International journal of applied radiation and isotopes Pub Date : 1985-09-01 DOI: 10.1016/0020-708X(85)90043-2

David W. Anderson , Karl L. Prado

引用次数: 0

Preparation of carrier free [125I]IodoHoechst 33258 无载流子[125I]IodoHoechst 33258的制备

The International journal of applied radiation and isotopes Pub Date : 1985-09-01 DOI: 10.1016/0020-708X(85)90049-3

Roger F. Martin, Marshall Pardee

引用次数: 15

Determination of oxygen isotopes in water by direct oxidation and oxygen mass spectrometry 直接氧化法和氧质谱法测定水中氧同位素

The International journal of applied radiation and isotopes Pub Date : 1985-08-01 DOI: 10.1016/0020-708X(85)90009-2

Janis Gulens , William J. Olmstead , Arthur S. Denovan , Kathleen L. Gale , John H. Rolston

引用次数: 3

Proton beam monitoring via the Cu(p, x) 58Co, 63Cu(p, 2n) 62Zn and 65Cu(p, n) 65Zn reactions in copper 铜中Cu(p, x) 58Co, 63Cu(p, 2n) 62Zn和65Cu(p, n) 65Zn反应的质子束监测

The International journal of applied radiation and isotopes Pub Date : 1985-08-01 DOI: 10.1016/0020-708X(85)90008-0

Petr Kopecký

引用次数: 99

A convenient, high-yield synthesis of [18F]4-fluoroantipyrine using [18F]acetylhypofluorite 用[18F]乙酰次萤石合成[18F]4-氟安替吡林的一种方便、高产率的方法

The International journal of applied radiation and isotopes Pub Date : 1985-08-01 DOI: 10.1016/0020-708X(85)90005-5

Mirko Diksic, Pasquale Diraddo

引用次数: 8

Correction of pair production gauge ash determinations for changes in coal ash composition 对煤灰分组成变化的双生产量规灰分测定的校正

The International journal of applied radiation and isotopes Pub Date : 1985-08-01 DOI: 10.1016/0020-708X(85)90003-1

M.J. Millen, B.D. Sowerby

{"title":"Correction of pair production gauge ash determinations for changes in coal ash composition","authors":"M.J. Millen, B.D. Sowerby","doi":"10.1016/0020-708X(85)90003-1","DOIUrl":"10.1016/0020-708X(85)90003-1","url":null,"abstract":"<div>The ash content of coal can be determined by a technique based on pair production (PP). The PP technique has been previously proved in the laboratory and in the field, and five commercial PP gauges are in routine use at coal washeries in Australia. However for some applications on coals of highly variable ash composition, there is a need for improved accuracy.Calculations and experiments have been made to investigate two methods of improving PP gauge accuracy for coals with highly variable ash composition. The first combines the PP gauge measurement with measurements of the low-energy part of the PP gauge spectrum and the second is done in conjunction with separate low and high energy γ-ray transmission measurements. Calculations show that these methods can correct the PP gauge assay exactly when the concentration of a single high-Z element in the ash varies. When more than one element varies, the error reduction is less and depends on the elements and their variations. Experiments with a group of samples from Blackwater, Queensland showed that gauge accuracy improved by about 20% relative using the first method. Use of the second method on two groups of samples from Blackwater and South Africa produced about 15% improvement. There was no reduction in error when either method was used on a third group of samples from the Hunter Valley, New South Wales.</div>","PeriodicalId":22517,"journal":{"name":"The International journal of applied radiation and isotopes","volume":"36 8","pages":"Pages 627-633"},"PeriodicalIF":0.0,"publicationDate":"1985-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-708X(85)90003-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84261783","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

Production of 75Br via the 76Se(p, 2n)75Br reaction at a compact cyclotron 紧凑回旋加速器中76Se(p, 2n)75Br反应制备75Br

The International journal of applied radiation and isotopes Pub Date : 1985-08-01 DOI: 10.1016/0020-708X(85)90004-3

Z. Kovács , G. Blessing, S.M. Qaim, G. Stöcklin

{"title":"Production of 75Br via the 76Se(p, 2n)75Br reaction at a compact cyclotron","authors":"Z. Kovács , G. Blessing, S.M. Qaim, G. Stöcklin","doi":"10.1016/0020-708X(85)90004-3","DOIUrl":"10.1016/0020-708X(85)90004-3","url":null,"abstract":"<div>Excitation functions were measured by the stacked-foil technique for the reactions 76Se(p, n)76Br, 76Se(p, 2n)75Br, 76Se(p, 3n)74mBr, 76Se(p, α)73As, 76Se(p, αn)72As, 76Se(p, α2n)71As and 76Se(p, 3He + 2pn + pd)74As on 96.48% enriched 76Se up to Ep = 40 MeV. The optimum energy range for the production of 75Br via the 76Se(p, 2n)75Br reaction at our compact cyclotron is Ep = 24 → 21.5 MeV, the calculated thick target yield of 75Br amounting to 32 mCi/μ Ah and the expected level of 76Br-impurity to 2.0%. A thin layer of metallic 76Se on Al-backing was used as target in combination with a water-cooled rotating target head. A dry distillation technique for the separation of radiobromine from irradiated targets was developed; radiochemical yields of about 40–52% were obtained. Using a 50.2 mg/cm2 thick target (Ep = 24→21.85 MeV, an irradiation time of 1.25 h at a nominal proton beam current of 15 μA and a distillation time of 30 min at 300°C, about 160 mCi of 75Br (at EOB) is produced. The total loss of 76Se after irradiation and distillation process is <1%. The levels of 76Br and 77Br impurities in 75Br are <3% and 0.15%, respectively.</div>","PeriodicalId":22517,"journal":{"name":"The International journal of applied radiation and isotopes","volume":"36 8","pages":"Pages 635-642"},"PeriodicalIF":0.0,"publicationDate":"1985-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-708X(85)90004-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73150765","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: 55

113mIn chelate complexes—I. In vitro investigations on a series of alkylvaried dithiocarbamato complexes with 113mIn 113mIn螯合物- 1。一系列含113mIn烷基异二硫代氨基甲酸配合物的体外研究

The International journal of applied radiation and isotopes Pub Date : 1985-08-01 DOI: 10.1016/0020-708X(85)90007-9

Sonja Abram, Ulrich Abram, Hartmut Spies, Rudolf Münze

引用次数: 6