A nuclear-track-recording polymer of unique sensitivity and resolution

Cartwright, B.; Shirk, E. K.; Price, P. B.

doi:10.1016/0029-554x(78)90989-8

Cited by 542 publications

(124 citation statements)

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“…It has been shown previously that the CR-39 response to charged-particles drops sharply within the first 30 days of manufacture, 22 and that it is the age of the plastic itself, not of the tracks, which results in the degradation of sensitivity (lower V T /V B ) with time. 23 The effects of prolonged aging on the CR-39 were studied using 5.5 MeV alpha particles from a 241 Am source and samples over a 5-year period.…”

Section: Effects Of Aging and Time Of Exposurementioning

confidence: 91%

The response of CR-39 nuclear track detector to 1–9 MeV protons

Sinenian

Rosenberg

Manuel

et al. 2011

Review of Scientific Instruments

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The response of CR-39 nuclear track detector (TasTrak®) to protons in the energy range of 0.92–9.28 MeV has been studied. Previous studies of the CR-39 response to protons have been extended by examining the piece-to-piece variability in addition to the effects of etch time and etchant temperature; it is shown that the shape of the CR-39 response curve to protons can vary from piece-to-piece. Effects due to the age of CR-39 have also been studied using 5.5 MeV alpha particles over a 5-year period. Track diameters were found to degrade with the age of the CR-39 itself rather than the age of the tracks, consistent with previous studies utilizing different CR-39 over shorter time periods.

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Section: Effects Of Aging and Time Of Exposurementioning

confidence: 91%

The response of CR-39 nuclear track detector to 1–9 MeV protons

Sinenian

Rosenberg

Manuel

et al. 2011

Review of Scientific Instruments

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“…This monitor, instead of a radon film badge, should be considered the first in-air radon-diffusion chamber, the principle of which has been exploited in all existing passive radon-monitors [12][13] For more than one decade, polycarbonate and cellulose nitrate detectors were the most common plastic detectors for both neutron and radon dosimetry [6]. It was only in 1978 that the poly-allyl diglycol carbonate-PADC detector (known with its trade name CR-39: Columbia resin 1939) was first introduced as track detector [14]. By exploiting the large alpha-particle registration sensitivity of CR-39 plastics, the National Radiological Protection Board-NRPB developed very compact radon monitors with sizes similar to those of personal dosimeters for x, , and n radiation [15], as shown in Fig.…”

Section: Neutron and Radon Monitoring By Nuclear Track Detectorsmentioning

confidence: 99%

From the similarities between neutrons and radon to advanced radon-detection and improved cold fusion neutron-measurements

Tommasino¹,

Espinosa²

2014

AIP Conference Proceedings

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Abstract. Neutrons and radon are both ubiquitous in the earth's crust. The neutrons of terrestrial origin are strongly related to radon since they originate mainly from the interactions between the alpha particles from the decays of radioactive-gas (namely Radon and Thoron) and the light nuclei. Since the early studies in the field of neutrons, the radon gas was used to produce neutrons by ( , n) reactions in beryllium. Another important similarity between radon and neutrons is that they can be detected only through the radiations produced respectively by decays or by nuclear reactions. These charged particles from the two distinct nuclear processes are often the same (namely alpha-particles). A typical neutron detector is based on a radiator facing a alpha-particle detector, such as in the case of a neutron film badge. Based on the similarity between neutrons and radon, a film badge for radon has been recently proposed. The radon film badge, in addition to be similar, may be even identical to the neutron film badge. For these reasons, neutron measurements can be easily affected by the presence of unpredictable large radon concentration. In several cold fusion experiments, the CR-39 plastic films (typically used in radon and neutron film-badges), have been the detectors of choice for measuring neutrons. In this paper, attempts will be made to prove that most of these neutron-measurements might have been affected by the presence of large radon concentrations.

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“…En 1975, Fleischer, Price et Walker ont rassemblé dans un important ouvrage leurs approches théoriques, les principes expérimentaux et des applications des traces nucléaires dans les solides à différents domaines des sciences (Fleischer et al, 1975). Dans la même période, deux groupes américains suggèrent d'utiliser un polymère à base de carbonate de diéthylène glycol, connu sous la dénomination commerciale de CR-39 (Cartwright et al, 1978 ;Cassou and Benton, 1978), pour la détection des traces d'ions rapides. Ce polymère transparent utilisé notamment dans l'industrie de la lunetterie offre à la fois une large gamme d'énergie (β = v/c) et de type d'ion (Z) détectable lorsqu'il est utilisé en tant que DSTN.…”

Section: Gravure Chimique Des Traces Nucléairesunclassified

Des détecteurs de traces à la radiobiologie : la contribution du LMN-AC

Fromm¹,

Groetz²

2006

Radioprotection

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RÉSUMÉNous présentons à travers l'historique du Laboratoire de Microanalyses Nucléaires Alain Chambaudet (LMN-AC) les différentes thématiques de recherche entrant dans le cadre de la dosimétrie des rayonnements ionisants et de la radiophysique.ABSTRACT From solid state nuclear track detectors to radiobiology: a contribution from LMN-AC.Through the story of the Alain Chambaudet Nuclear Microanalysis Laboratory, the research topics are outlined with relation to dosimetry and spectrometry of ionizing radiations and radiobiology. Article published by EDP Sciences and available at http://www.edpsciences.org/radiopro or http://dx

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A nuclear-track-recording polymer of unique sensitivity and resolution

Cited by 542 publications

References 1 publication

The response of CR-39 nuclear track detector to 1–9 MeV protons

The response of CR-39 nuclear track detector to 1–9 MeV protons

From the similarities between neutrons and radon to advanced radon-detection and improved cold fusion neutron-measurements

Des détecteurs de traces à la radiobiologie : la contribution du LMN-AC

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