《Radioisotopes in The Physical Sciences and Industry II》

E．INDUSTRLAL APPLICATIONS OF RADIOISOTOPES, PART Ⅱ:APPLICATIONS USING PENETRATION ABSORPTION AND SCAT-TERING OF RADLATION1

Design and characteristics of beta-excited X-ray sources＆I．Filosofo, L．Reiffel, C．A．Stone and L．Voyvodic （United States of America）3

Beta-excited sources of electromagnetic radiation＆J．F．Cameron and J．R．Rhodes （United Kingdom）23

Nouveaux developpements de l'analyse et de la mesure des epaisseurs parexcitation des raies de fluorescence X au moyen de particules β＆P．Martinelli et G．Seibel （France）41

The limitations of determining traces of elements by radioisotope fluorescencespectroscopy＆C．E．Mellish and J．A．Payne （United Kingdom）55

Research applications of beta-particle techniques: back scattering and X-ray excitation＆R．H．Muller （United States of America）65

Jauge d'epaisseur radioactive＆J．Guizerix （France）81

Прибордляиэмерениятолщины толстолистового горячего проката＆Б．Н．Васичев，В．К．Латышев,Ю．С．Плискин и А．К．Фелингер（СССР）93

Utilisation du rayonnement alpha pour les mesures industrielles de poidssuperficiel＆J．Perette et J．Maugest （France）109

Mesure du rapport C/H au moyen des neutrons＆P．Martinelli et M．H．Ricci （France）129

Continuous analysis for sulphur in a refinery＆R．Pegg and J．Pollock （United Kingdom）137

Некоторые возможности испольэования радиоактивых иэотопов врэиновойпромышленности＆ЙШиморда М．Можишек,Л．Климанек иЙ．Староба（ЧССР）147

The use of tritium as a static eliminator at the 10—20 curie level of activity＆P．Reasbeck （United Kingdom）157

Gamma-radiography of the bronze door of the royal cathedral at Gniezno＆Z．Godlewski （Poland）165

Voltmetre statistique a rayons β＆R．Vinet, F．Barrault et A．Delpoux （France）177

F．DETECTORS AND INSTRUMENTATION191

Comptage du tritium dans le domaine de Geiger＆R．Coekelbergs, A．Frennet et G．Lienard （Belgique）193

Activation analysis by means of coincidence spectrometry＆K．Ljunggren （Sweden）199

Potentialities of autoradiography for comparison of radioactive samples＆G．W．W．Stevens and D．Spracklen （United Kingdom）211

Application of radioisotopes to a gas-chromatographic detector for direct indi-cation of concentration＆L．Wiesner, W．J．Schmidt-Kuater and G．R．Schultze （Federal Republicof Germany）225

G．RADIOISOTOPES IN ANALYTICAL CHEMISTRY231

An investigation of automated activation analysis＆W．E．Kuykendall, Jr．, R．E．Wainerdi and Associates （United Statesof America）233

Application des radioisotopes a l'analyse systematique des impuretes dansles metaux de tres haute purite＆P．Albert et J．Gaittet （France）243

Neutron activation analysis of ancient silver coins＆M．J．Aitken, V．M．Emeleus and E．T．Hall （United Kingdom）261

The determination of sulphur in materials of high neutron absorption cross-section by fast-neutron activation analysis＆D．Gibbons and H．Simpson （United Kingdom）269

Activation analysis utilizing fast radiochemical separations and portableneutron generators＆W．W．Meinke （United States of America）277

The use of antimony-124 for beryllium analysis＆F．H．Hale and H．Bisby （United Kingdom）291

The application of isotope dilution analysis to studies with optical enantio．morphs＆R．J．Bayly （Uniied Kingdom）305

Determination of hydrogen in metals by isotopic dilution with tritium＆C．Evans and J．Herrington （United Kingdom）309

The isotope-dilution method of fluorine microestimation＆J．N．Kudahl, J, H．Fremlin and J．L．Hardwick （United Kingdom）317

Identification and estimation of carbohydrates using radioisotopic methods＆G．O．Phillips and W．J．Criddfe （United Kindgom）325

Radiometric chemical analysis＆B．F．Scott and W． J．Driscoll （United States of America）339

The radiometric analysis of non-radioactive materials by chemical exchange＆D．J．Chleck and C．A．Ziegler （United States of America）351

Adsorption of the elements from nitric acid by anion exchange＆R．F．Buchananand J．P．Faris （United States of America）361

H．SURVEY PAPER ON RECOIL CHEMISTRY373

Recent advances in the field of recoil chemistry＆G．Harbottle （United States of America）375

Ⅰ．PRODUCTION OF RADIOISOTOPES393

Получениеконцентрованыхпреларатов CL36 и Br82 методом ядер отдачи приоблучении в нейтроииых полях высокой плотности＆Л．Н．Курчатова и Б．В．Курчатов（ССР）395

New processing techniques for radioisotopes at Oak Ridge National Labora．tory＆T．A．Butler, E．Lamb and A．F．Rupp （United States of America）407

The production of radioisotopes with a betatron using an internal bombardingtechnique＆H．Morinaga （Japan）419

The production of carrier-free tantalum by deuteron bombardment of tungsten＆A．Demildt and J．Hoste （Belgium）425

Separation of tritium from hydrogen by thermal diffusion＆E．S．Robinson, A．C．Briesmeister, B．B．McInteer and R．M．Potter （UnitedStates of America）431

Traitement des solutions de produits de fission— Separation du cesium-137＆R．Stiennon-Bovy et R．Gvion （Belgique）439

Une methode simple de preparation du beryllium-7 par I’action de protonsrapides sur l'eau＆E．Gradsztajn et R．Bernas （France）453

On the production of Re7 in the NRX reactor by the B10 （p, a） Be7, Li7（p, n）Be7 and Li6 （d, n） Be7 reactions＆J．C．Roy, M．Bresesti and J．J．Hawton （Canada）455

Labelling of carbon suboxide in a radiation field＆M．A．Rollier, V．Maxia and M．Secci （Italy）465

Investigations of the chemical states of carrier-free phosphorus-32 as extractedinto water from pile-irradiated sulphur＆J．B．Dahl and O R．Birkelund （Norway）471

Progress towards phosphorus-33 production: studies on the enrichement ofsulphur-33 by means of anion exchangers＆S．Forberg and T．Westermark （Sweden）495

Une source reservoir a francium-223＆J．Fouarge （Belgium） and W．W．Meinke （United States of America）511

Sources solides de krypton-85＆J．R．Puig et J．Sandler （France）521

Основы термического метода приготовления бета-источников сплавленными носителямивключающими стронций-90＆Н．И．Богданов,К．П．Эахарова,П．В．Эимаков,В．В．Куличенко（СССР）527

Mutual separation of californium and curium by extraction with acidic phos-phonates＆D．F．Peppard, G．W．Mason and Ⅰ．Hucher （United States of America）541