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[en] A study has been made of the possibility of applying computer techniques to the resolution of data from the complex gamma-ray spectra obtained in non-destructive activation analysis. The primary objective has been to use computer data-handling techniques to allow the existing analytical method to be used for rapid, routine, sensitive and economical elemental analyses. The necessary conditions for the satisfactory application of automated activation analysis have been evaluated and a computer programme has been completed which will process the data from samples containing a large number of different elements. To illustrate the speed of the handling sequence, the data from a sample containing four component elements can be processed in a matter of minutes, with the speed of processing limited primarily by the speed of the output printer. (author)
[fr]
On a etudie la possibilite d'employer des calculatrices pour traiter les donnees fournies par les spectres complexes de rayons gamma lors d'une analyse par activation automatisee non destructive. L'emploi de calculatrices doit permettre d'appliquer cette methode par activation pour analyser des elements couramment, rapidement, avec precision et a peu de frais. On a evalue les conditions a remplir pour appliquer de facon satisfaisante la methode d'analyse par activation automatisee et on a mis au point un programme de calculatrice permettant de traiter les donnees relatives a des echantillons contenant un grand nombre d'elements differents. A titre d'indication de la rapidite des operations, on peut signaler que les donnees concernant un echantillon contenant quatre elements constitutifs sont traites en quelques minutes, la vitesse etant limitee surtout par le delai d'impression a la sortie. (author)[es]
Los autores estudian la posibilidad de utilizar maquinas calculadoras para tratar los datos correspondientes a los complejos espectros gamma que se obtienen en los analisis por activacion no destructivos. La finalidad primordial del estudio es aplicar procedimientos de calculo mecanico con miras a poder llevar a cabo, con arreglo al actual metodo de activacion, los analisis elementales de manera rapida, rutinaria, exacta y economica. Los autores examinaron las condiciones necesarias para poder aplicar satisfactoriamente el analisis por activacion automatizado y elaboraron un programa que permite tratar los datos correspondientes a muestras que contengan muchos elementos distintos. Para dar una idea de la rapidez de trabajo del sistema, los autores senalan que el metodo permite analizar en algunos minutos los datos relativos a una muestra formada por cuatro elementos. La velocidad de manipulacion de los datos queda limitada principalmente por la velocidad del dispositivo que imprime los resultados. (author)[ru]
Byla izuchena vozmozhnost' primeneniya schetno-reshayushchego ustrojstva dlya analiza' dannykh iz sostavnogo spektra gamma-luchej, poluchennykh putem aktivatsionnogo analiza bez razrusheniya. Osnovnaya tsel' zaklyuchalas' v ispol'zovanii metodov obrabotki dannykh schetno-reshayushchim ustrojstvom s tem, chtoby mozhno bylo primenit' sushchestvuyushchij analiticheskij metod dlya provedeniya obychnykh, bystrykh, chuvstvitel'nykh i ehkonomichnykh pervonachal'nykh analizov. Daetsya otsenka neobkhodimym usloviyam dlya udovletvoritel'nogo primeneniya avtomatizirovannogo aktivatsionnogo analiza i opisyvaetsya vyrabotannaya programma dlya schetnogo ustrojstva, kotoroe obrabatyvaet dannye dlya obraztsov, soderzhashchikh bol'shoe chislo razlichnykh ehlementov. V kachestve illyustratsii skorosti posledovatel'noj obrabotki dannykh dannye obraztsa, soderzhashchego chetyre sostavnykh ehlementa, obrabatyvayutsya za neskol'ko minut, prichem skorost' obrabotki dannykh ogranichivaetsya glavnym obrazom skorost'yu, kotoruyu mozhet dostich' pechatnoe ustrojstvo vykhodnykh dannykh. (author)Source
International Atomic Energy Agency, Vienna (Austria); United Nations Educational, Scientific and Cultural Organization, Paris (France); 566 p; Jan 1962; p. 231-241; Conference on the Use of Radioisotopes in the Physical Sciences and Industry; Copenhagen (Denmark); 6-17 Sep 1960; ISSN 0074-1884; 
; 2 tabs, 9 refs
; 2 tabs, 9 refs
[en] Advances in optics technology, synthetic photochemistry, and the science of photobiology make it possible to think beyond phototherapy and photochemotherapy which is dependent on direct photochemical alteration of metabolites or direct phototoxic insult to cells. This report discusses another gender of photomedicine therapy which includes in vivo photoactivation of medicines, photon-dependent drug delivery, and manipulation of host and exposure source to maximize therapeutic index. These therapeutic manipulations are made possible because the skin is highly overperfused and because non-ionizing electromagnetic radiation that enters skin and blood has adequate photon energy to cause electronic excitation. Radiation of 320-800 nm is not very directly phototoxic, is absorbed by a variety of relatively nontoxic photolabile molecules and has an internal dosimetric depth profile. This radiation can therefore be used to activate, deactivate, bind, release or biotransform medications in vivo in skin or other organs. The photochemist, synthetic chemist and photobiologist can collaborate to significantly increase therapeutic possibilities
Journal
Journal of Investigative Dermatology; ISSN 0022-202X; ; v. 77(1); p. 45-50
; v. 77(1); p. 45-50
[en] This experiment was carried out to develope a technique for labelling pine gall midge with radioactive phosphorus and calcium. This technique evolved would help to obtain basic information on the appropriate concentration of 32P and 45Ca in tagging and determination of adult flight ranges which considered as one of the factors in dissemination. Labelling at the larval stage of pine gall midge by injection of 45Ca into pine tree trunk appeared not to be effective for tagging the adults because radioactivity was gradually decreased to background by emergence. The radioactivities of larvae in the galls gradually increased in September but from October 1 the activity was gradually decreased for 10 days then equilibrium was maintained thereafter. The results seem to indicate that larval diet termination occured early October. A maximum level of radiation was detected at 3 weeks after 32P injection and thereafter it was gradually reduced. This result implies that 32P is not appropriate radioisotope in labelling pine gall midge through trunk injection method. After washing in running water for 10 minutes, the optimum 32P concentration for treated overwintered larvae and pupae was found to be 0.5 micro curie per ml. for 30 minutes dipping. (author)
Journal
Han'guk Sikmul Poho Hakhoe Chi; ISSN 0367-6285; ; v. 17(3); p. 155-160
; v. 17(3); p. 155-160
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