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The luminescent dosimeters are widely used in clinical practice, for the monitoring of patient dose in external radiation therapy. Three of the most common dosimeter categories are the thermoluminescence (TLDs), the radiophotoluminescence (RPLs) and the optically stimulated luminescence (OSLs), with similar physical processes on their properties. The aim of the present study is to compare and evaluate the dosimetric properties of three specific luminescent detectors namely: a) RPL glass dosimeter, commercially known as GD-301, b) lithium fluoride TLD-100 (LiF:Mg,Ti) and c) carbon-doped aluminum oxide (Al2O3:C). For this purpose, Monte Carlo simulations were applied, using the MCNP5 code to estimate the responses of these dosimeters in terms of absorbed dose, output factor, the angular and energy dependence. In the present study, we found that the differences between the output factors were less than ±4.2% for all detector materials RPLGD, TLD and OSLD. The variations in sensitivity for angles up to ±80 degrees from the central axis of the beam were approximately 0.5%, 0.8% and 1.5% for the TLD-100, GD-301 and Al2O3:C, respectively. The energy dependence of the RPL and OSL dosimeters are stated as less than a 2.2%, and within 5.8% for TLD. K: Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc); X-ray detectors; Solid state detectors 1Corresponding author.

This approach was followed for the vector current in the second paper in Ref. 5.~S ee the first paper in Ref. 5, and references therein. See, also, E. J. Konopinski, The Theory of Beta Radioactivity (Clarendon Press, Oxford, England, 1966). J. Sodermann and A. Winther, Nucl. Phys. 69, 369 (1965). We have assumed that Iz(0) &0 and f";y(0) &0.~4 Y. Nambu, Phys. Rev. Letters 4, 380 (1960). See the second paper in Ref. 1.6For P+ decay, C is negative so that a more careful analysis is necessary.We have assumed that f&(0) & 0 and f"'f(0)~0. It should be noted that if f&(0) =0, an entirely different result follows.Note that in Eq. (76) the contribution of the f2 term appears to be [Wo/(m;+mf)](f2/f&), but when combined with the lepton part, it is [m, /(m;+m&)](f2/f(). Reddy, Nuovo Cimento 3A, 699 (1971) for the latest list of references.A preliminary discussion of these results appears in Phys. Letters 41B, 39 (1972).

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2014 Les sections efficaces différentielles absolues de la diffusion 9Be + p ont été mesurées à 2 ~ Ep 3,8 MeV. Cinq courbes d'excitation à des angles 65° ~ 03B8cm ~ 160° et cinq distributions angulaires à Ep = 2,31; 2,44; 2,56; 2,62 et 2,73 MeV et pour des angles 40° ~ 03B8cm ~ 140° ont été obtenues. L'analyse simultanée de ces résultats et de données existant à Ep ~ 5 MeV a été effectuée dans le formalisme de la matrice R. L'ensemble des données a été ajusté de façon satisfaisante en tenant compte, dans cette gamme d'énergie, de neuf niveaux du 10B situés respectivement aux énergies d'excitation

Radon activity concentrations have been measured in 34 workplaces throughout Algiers nuclear research centre, in Algeria, during some periods between March 2007 and June 2013 using Electret ion chambers, nuclear tracks detectors and an AlphaGuard system. The indoor radon levels range from 2 to 628 Bq m(-3) with an average indoor concentration equals to 92 Bq m(-3), whereas the estimated outdoor radon concentrations range from 2 to 14 Bq m(-3) with an average value of 6 Bq m(-3). This study also focused on parameters affecting radon concentration levels such as floor number, ventilation and atmospheric parameters. Furthermore, the mean gamma rates have been measured in the different investigated locations and have been found to be varying between 33 and 3300 nSv h(-1). The annual effective dose for workers calculated using the appropriate equilibrium and occupancy factors is lower than the value recommended by International Commission on Radiological Protection in its Publication 103.

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