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Liquid scintillators for radiocarbon dating in archaeology; Scintillateurs liquides pour l'evaluation de Page au moyen du radiocarbone en archeologie; Zhidkie stsintillyatory dlya radiouglerodnogo datirovaniya v arkheologii; Centelladores liquidos para la determinacion de edades con carbono-14 en arqueologia

Conference:

Abstract

A simple scintillator counter with one photomultiplier and no cooling is used for determining the absolute age of archaeological specimens by means of radiocarbon. Background is reduced by using a steel- and lead-laminated shield and amplitude pulse-height selection, and by making the detector from selected 'clean' materials. Ethyl benzene is synthesized from the carbon contained in the archaeological specimen. From 18 to 72 ml of liquid scintillator was used in the measurements, corresponding to the introduction of 3 - 12 g of carbon from the specimen. With 40 ml of scintillator the background-count speed and the contemporaneous carbon speed (without background) were respectively 23.5 and 37 counts/min and with 70 ml, 28 and 57 counts/ min. The statistical error of 48-h measurements of specimens 5500 yr old is respectively 65 and 35 yr with 40 and 70 ml of the scintillator. Archaeological specimens from various regions of the Soviet Union were measured. (author) [French] Pour determiner l'age absolu de specimens archeologiques au moyen du radiocarbone, on emploie un simple compteur a scintillations avec un seul photomultiplicateur sans refroidissement. On parvient a diminuer le bruit de fond en employant un ecran forme de lames d'acier et de plomb, en selectionnant les  More>>
Publication Date:
Jan 15, 1962
Product Type:
Conference
Resource Relation:
Conference: Conference on the Use of Radioisotopes in the Physical Sciences and Industry, Copenhagen (Denmark), 6-17 Sep 1960; Other Information: 4 figs, 1 tab., 16 refs; Related Information: In: Radioisotopes in the Physical Sciences and Industry. Proceedings of the Conference on the Use of Radioisotopes in the Physical Sciences and Industry. V. 1| 556 p.
Subject:
58 GEOSCIENCES; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ARCHAEOLOGICAL SPECIMENS; ARCHAEOLOGY; BENZENE; CARBON; CARBON 14; ISOTOPE DATING; LIQUID SCINTILLATORS; LIQUIDS; MATERIALS; PULSES
OSTI ID:
22025617
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); United Nations Educational, Scientific and Cultural Organization, Paris (France)
Country of Origin:
IAEA
Language:
Russian
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA12N1596112910
Submitting Site:
INIS
Size:
page(s) 91-99
Announcement Date:
Jan 17, 2013

Conference:

Citation Formats

Starik, I E, Rudenko, S I, Artem'ev, V V, Butomo, S V, Drozhzhin, V M, and Romanova, E N. Liquid scintillators for radiocarbon dating in archaeology; Scintillateurs liquides pour l'evaluation de Page au moyen du radiocarbone en archeologie; Zhidkie stsintillyatory dlya radiouglerodnogo datirovaniya v arkheologii; Centelladores liquidos para la determinacion de edades con carbono-14 en arqueologia. IAEA: N. p., 1962. Web.
Starik, I E, Rudenko, S I, Artem'ev, V V, Butomo, S V, Drozhzhin, V M, & Romanova, E N. Liquid scintillators for radiocarbon dating in archaeology; Scintillateurs liquides pour l'evaluation de Page au moyen du radiocarbone en archeologie; Zhidkie stsintillyatory dlya radiouglerodnogo datirovaniya v arkheologii; Centelladores liquidos para la determinacion de edades con carbono-14 en arqueologia. IAEA.
Starik, I E, Rudenko, S I, Artem'ev, V V, Butomo, S V, Drozhzhin, V M, and Romanova, E N. 1962. "Liquid scintillators for radiocarbon dating in archaeology; Scintillateurs liquides pour l'evaluation de Page au moyen du radiocarbone en archeologie; Zhidkie stsintillyatory dlya radiouglerodnogo datirovaniya v arkheologii; Centelladores liquidos para la determinacion de edades con carbono-14 en arqueologia." IAEA.
@misc{etde_22025617,
title = {Liquid scintillators for radiocarbon dating in archaeology; Scintillateurs liquides pour l'evaluation de Page au moyen du radiocarbone en archeologie; Zhidkie stsintillyatory dlya radiouglerodnogo datirovaniya v arkheologii; Centelladores liquidos para la determinacion de edades con carbono-14 en arqueologia}
author = {Starik, I E, Rudenko, S I, Artem'ev, V V, Butomo, S V, Drozhzhin, V M, and Romanova, E N}
abstractNote = {A simple scintillator counter with one photomultiplier and no cooling is used for determining the absolute age of archaeological specimens by means of radiocarbon. Background is reduced by using a steel- and lead-laminated shield and amplitude pulse-height selection, and by making the detector from selected 'clean' materials. Ethyl benzene is synthesized from the carbon contained in the archaeological specimen. From 18 to 72 ml of liquid scintillator was used in the measurements, corresponding to the introduction of 3 - 12 g of carbon from the specimen. With 40 ml of scintillator the background-count speed and the contemporaneous carbon speed (without background) were respectively 23.5 and 37 counts/min and with 70 ml, 28 and 57 counts/ min. The statistical error of 48-h measurements of specimens 5500 yr old is respectively 65 and 35 yr with 40 and 70 ml of the scintillator. Archaeological specimens from various regions of the Soviet Union were measured. (author) [French] Pour determiner l'age absolu de specimens archeologiques au moyen du radiocarbone, on emploie un simple compteur a scintillations avec un seul photomultiplicateur sans refroidissement. On parvient a diminuer le bruit de fond en employant un ecran forme de lames d'acier et de plomb, en selectionnant les impulsions selon leur amplitude et en choisissant des matieres pour la construction du detecteur. A partir du carbone contenu dans le specimen archeologique, on obtient, par synthese, de l'ethylbenzene. Pour effectuer les mesures, on a utilise de 18 a 72 ml de scintillateur liquide, ce qui equivalait a l'introduction de 3 a 12 g de carbone provenant de l'echantillon. Pour une quantite de 40 ml de scintillateur, la vitesse de comptage du bruit de fond et celle de carbone contemporain (sans bruit de fond) etaient de 23,5 et 37 imp/min respectivement, et, pour 70 ml, de 28 et 57 imp/min. L'erreur statistique que comportent les mesures effectuees pendant 48 heures sur des echantillons vieux de 5500 ans represente, pour des quantites de 40 et 70 ml de scintillateur, 65 et 25 ans respectivement. Les auteurs ont effectue des mesures sur des specimens archeologiques provenant de diverses regions de l'URSS. (author) [Spanish] Con el objeto de determinar mediante carbono radiactivo la edad absoluta de muestras arqueologicas, los autores utilizan un contador de centelleo sencillo con un fotomultiplicador, sin refrigeracion. Consiguen reducir la actividad de fondo empleando un blindaje formado por laminas de acero y de plomo, procediendo a una seleccion de los impulsos segun su amplitud y construyendo el detector con materiales seleccionados y ''purificados''. A partir del carbono contenido en la muestra arqueologica, se sintetiza etil benceno. Para efectuar las mediciones, se han utilizado de 18 a 72 ml de centelleador liquido, cantidad que corresponde de 3 a 12 g de carbono en la muestra. Empleando 40 ml de centelleador, la velocidad de recuento de la actividad de fondo y la del carbono contemporaneo (sin fondo) fueron respectivamente de 23,5 y 37 impulsos/min; con 70 ml, estas velocidades fueron de 28 y 57 impulsos/min. El error estadistico correspondiente a mediciones de 48 horas de duracion de muestras de 5500 anos de edad asciende a 65 y 35 anos cuando se emplean 40 ml y 70 ml de centelleador, respectivamente. Se midieron muestras arqueologicas procedentes de diversas regiones de la Union Sovietica. (author) [Russian] Dlya opredeleniya absolyutnogo vozrasta arkheologicheskikh obraztsov po radiouglerodu ispol'zuetsya prostoj stsintillyatsionnyj schetchik s odnim fotoumnozhitelem bez okhlazhdeniya. Snizhenie fona dostigaetsya primeneniem zashchity iz sloev stali i svintsa, amplitudnoj selektsii impul'sov i vyborom ''chistykh'' materialov dlya izgotovleniya detektora. Iz ugleroda, soderzhashchegosya v arkheologicheskom obraztse, sinteziruetsya ehtilbenzol. Pri izmereniyakh ispol'zovalos' ot 18 do 72 ml zhidkogo stsintillyatora, chto sootvetstvovalo vvedeniyu ot 3 do 12 g ugleroda obraztsa. Dlya 40 ml stsintillyatora skorost' scheta fona i sovremennogo ugleroda (bez fona) byla ravna 23,5 i 37 imp/min, a dlya 70 ml - 28 i 57 imp/min, sootvetstvenno. Statisticheskaya oshibka 48 chasovykh izmerenij obraztsov vozrasta 5,5 tysyach let sostavlyaet dlya 40 i 70 ml stsintillyatora 65 i 35 let. Proizvedeny izmereniya arkheologicheskikh obraztsov iz razlichnykh rajonov SSSR. (author)}
place = {IAEA}
year = {1962}
month = {Jan}
}