Nuclear tracks

Chakarvarti SK, Vetter J (1991) Morphology of etched pores and microstructures fabricated from nuclear track filters. Nucl Instrum Methods B 62 109-115... 

Chakarvarti SK, Vetter J (1993) Microfabrication of metal-semiconductor heterostructures and tubules using nuclear track filters. J Micromech Microeng 3 57-59... 

Henshaw DL (1989) Application of sohd state nuclear track detectors to measurements of natural alpha-radioactivity in human body tissues. Nucl Tracks Radiat Meas 16(4) 253-270 Int J Radiat Appl lustrum Part D... 

Fleisher, R. L. (1998), Tracks to Innovation, Nuclear Tracks in Science and Technology, Springer, Berlin. 

Fleischer, R. L., R B. Price, and R. M. Walker (1975), Nuclear Tracks in Solids Principles and Applications, Univ. California Press, Berkeley. 

M kel inen, I., Experiences with track etch detectors. Proc. of the 13th International Conference on Solid State Nuclear Track Detectors, Rome (September 1985) (to be published). 

Miles, J.C.H. and J. Dew, A Passive Radon Gas Detector for use in Homes, in Proceedings 11th International Conference on Solid State Nuclear Track Detectors (P.H. Fowler and V.M. Clapham, eds.) pp 569-579, Pergamon Press (1982). 

Fleischer, R.L., Theory of Passive Measurement of Radon Daughter and Working Levels by the Nuclear Track Technique, Health Physics 47 263-270 (1984). 

Construct a radioautographic sandwich consisting of a slide with a thin layer of collodion containing pollen and another slide to which was affixed a thin layer of Kodak NTB-2 Nuclear Track Emulsion (use appropriate safelight and bulb wattage see Table 1). 

Protocol updated from Krolak et al. (49) and Dashek and Mills (50). Controls (a) Germinate pollen without [14C]-pro and process as before, (b) Construct a radioautographic sandwich with collodion lacking pollen, (c) Expose a slide coated with Kodak NTB-2 Nuclear Track Emulsion to light and develop emulsion with D-19. (Sample autoradiographs are presented in Fig. 3.)... 

Bigazzi, G., Ercan, T., Oddone, M., Ozdogan, M. and Yegingil, Z. (1993). Application of fission track dating to archaeometry provenance studies of prehistoric obsidian artifacts. Nuclear Tracks and Radiation Measurements 22 757-762. 

Fleisher, R.L. Price, P.B. Walker, R.M. Nuclear Tracks in Solids Principles and Applications, Fleisher, R.L. Ed. University of California Press Berkeley, 1975 1 pp. 

Nuclear track detectors are very simple and very efficient detectors of rare events that produce highly ionizing radiation. Carefully prepared and scanned track detectors have been used to identify individual rare decays. The detectors are integrating in that the damage caused by a track is not spontaneously repaired. The drawback to track detectors is that the tracks are small and can only be observed with a microscope. In the past, scanning by eye was extremely labor intensive and prone to error. Modern computer-controlled scanning has improved the speed and reliability of the analysis. Plastic track detectors that are sensitive to a particles are used extensively in commercial radon detectors. 

To meet the need to monitor levels of 222Rn in houses, passive samplers have been developed which measure average concentrations over long periods and do not need power suplies. In the Karlsruhe dosimeter (Urban Piesch, 1981), a polycarbonate nuclear track detector foil is mounted inside a plastic cup. The mouth of the cup is closed with a filter to allow radon to enter but to exclude decay products. After exposure, the detector foil is etched and the tracks counted optically. This is a... 

A nanocapillary array membrane was sandwiched between two PDMS layers to achieve pre-concentration (see Figure 5.14) [591]. The array is a PC nuclear-track etched (PCTE) membrane. The membrane is 10 pm thick, and consists of 200-nm pores which are coated with PVP. Before use, the array was condi-... 

Nuclear tracks produced by ion beams have been applied to many fields such as track detectors for cosmic rays, nuclear track filters, membranes for separation processes, and single-pore membranes [24], However, the mechanisms of formation of nuclear tracks have not been elucidated so far. 

The application of ion beams to polymers has been worthy of remark in the fields of advanced science and technology since the radiation effects of ion beams on polymers are different from those of conventional radiation such as electron beams and gamma-rays. The effects of ion beams are called LET effects but the detailed mechanisms of these effects on polymers have not been elucidated so far. So-called high density excitation effects such as carbonization, blackening, ablation and formation of nuclear tracks, which only occur at high densities, have been studied by a number of advanced spectroscopic methods. 

Fleischer R, Price P, Walker RM (1975) Nuclear track in solids, University of California Press... 

As all known lunar meteorites are finds (and therefore have nonzero terrestrial ages), we need at least four measured quantities to determine the four parameters of a simple one-stage history. Similarly, for a simple two-stage history, we need at least six measured quantities. Typically the data set available comprises He, Ne, Ne, Ar, C1, A1, and e. Occasionally we may have other information— the concentrations of spallo-genic krypton isotopes, spallogenic xenon isotopes, " Ca, and Mn, the densities of nuclear tracks (tracks/unit area), and the concentrations of certain isotopes produced by thermal neutrons, e.g., Ar (from C1) and Gd. 

Bradley J. P., Brownlee D. E., and Fraundorf P. (1984a) Discovery of nuclear tracks in interplanetary dust. Science 226, 1432-1434. 

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