Results 61 to 70 of about 2,681 (192)

New limits on $2\varepsilon$, $\varepsilon\beta^+$ and $2\beta^+$ decay of $^{136}$Ce and $^{138}$Ce with deeply purified cerium sample

, 2017
A search for double electron capture ($2\varepsilon$), electron capture with positron emission ($\varepsilon\beta^+$), and double positron emission $2\beta^+$) in $^{136}$Ce and $^{138}$Ce was realized with a 465 cm$^3$ ultra-low background HP Ge $\gamma$
Belli, P., Bernabei, R., Boiko, R. S., Cappella, F., Cerulli, R., Danevich, F. A., Incicchitti, A., Kropivyansky, B. N., Laubenstein, M., Mokina, V. M., Polischuk, O. G., Tretyak, V. I.   +11 more
core   +1 more source

Dosimetric effect by shallow air cavities in high energy electron beams [PDF]

, 2014
This study evaluates the dosimetric impact caused by an air cavity located at 2 mm depth from the top surface in a PMMA phantom irradiated by electron beams produced by a Siemens Primus linear accelerator. A systematic evaluation of the effect related to
Carreira, P., Jesus, A. P., Leal, A., Madureira, L., Miras del Rio, H., Mora, G., Salguero, F. J., Teixeira, Nuno, Zarza-Moreno, M.   +8 more
core   +1 more source

Uso de Métodos Monte Carlo na Modelagem de Fontes Radioativas Naturais

Brazilian Journal of Radiation Sciences, 2015
Exist, in Brazil and in the world, different places with high levels of ambient radiation, mainly due to the presence of primordial radionuclides, exposing populations to risks that can not be neglected.
Gutemberg Luiz Sales Claudino, José Vieira, Viriato Leal Neto, Fernando Lima, José Santos   +4 more
doaj   +1 more source

A novel system for micron‐scale analysis of energy deposition and response to low‐dose radiation

Medical Physics, Volume 53, Issue 3, March 2026.
Abstract Background Micrometer‐scale evaluation of energy deposition is important for radiation protection and therapy as well as for advancing knowledge of responses to radiation in materials and biological systems. Due to the stochastic nature of radiation interactions, there is significant variation in energy deposition in micrometer‐sized targets ...
Prarthana Pasricha, Connor McNairn, Iymad R. Mansour, Kirsty Milligan, Bryan R. Muir, Jeffrey L. Andrews, Edana Cassol, Vinita Chauhan, Sanjeena Subedi, Andrew Jirasek, Sangeeta Murugkar, Rowan M. Thomson   +11 more
wiley   +1 more source

Search for double beta decay of $^{136}$Ce and $^{138}$Ce with HPGe gamma detector

, 2014
Search for double $\beta$ decay of $^{136}$Ce and $^{138}$Ce was realized with 732 g of deeply purified cerium oxide sample measured over 1900 h with the help of an ultra-low background HPGe $\gamma$ detector with a volume of 465 cm$^3$ at the STELLA ...
Belli, P., Bernabei, R., Boiko, R. S., Cappella, F., Cerulli, R., Danevich, F. A., Incicchitti, A., Kropivyansky, B. N., Laubenstein, M., Poda, D. V., Polischuk, O. G., Tretyak, V. I.   +11 more
core   +1 more source

Implementation of a Tetrahedral Mesh Phantom Geometry Library for EGSnrc

, 2022
The implementation of a general-purpose tetrahedral mesh phantom geometry library for the Monte Carlo radiation transport code EGSnrc is described. Recently, tetrahedral mesh geometries have been proposed as standard reference phantoms to advance the state of the art over rectilinear voxel phantoms.
openaire   +2 more sources

Monte Carlo based reconstruction using a rotator for 2-D PET data [PDF]

, 2008
C
Zhang, Long
core   +1 more source

Development of a GPU-based Monte Carlo dose calculation code for coupled electron-photon transport

, 2010
Monte Carlo simulation is the most accurate method for absorbed dose calculations in radiotherapy. Its efficiency still requires improvement for routine clinical applications, especially for online adaptive radiotherapy.
Amitava Majumdar, Bielajew A F Hirayama H Nelson W R Rogers D W O, Briesmeister J F, Dongju Choi, Gu X, Gu X, Jacques R Taylor R Wong J McNutt T, Josep Sempau, Lensch H Strzodka R, Li J S, Li M, Ma C M, Men C, Nelson W R Hirayama H Rogers D W O, NVIDIA, Salvat F Fernández-Varea J M Baró J Sempau J, Salvat F Fernández-Varea J M Sempau J, Sempau J, Sharp G C, Steve B Jiang, Woodcock E Murphy T Hemmings P Longworth S, Xu F, Xuejun Gu, Xun Jia, Yan G R   +24 more
core   +1 more source

Measurement of the Total Active 8B Solar Neutrino Flux at the Sudbury Neutrino Observatory with Enhanced Neutral Current Sensitivity [PDF]

, 2003
The Sudbury Neutrino Observatory (SNO) has precisely determined the total active (nu_x) 8B solar neutrino flux without assumptions about the energy dependence of the nu_e survival probability.
A. B. McDonald, A. Bellerive, A. D. Marino, A. E. Anthony, A. Hime, A. J. Noble, A. L. Hallin, A. S. Hamer, A. V. Krumins, A. W. P. Poon, B. A. Moffat, B. C. Robertson, B. G. Fulsom, B. G. Nickel, B. L. Wall, B. T. Cleveland, C. A. Duba, C. C. M. Kyba, C. E. Okada, C. E. Waltham, C. J. Sims, C. J. Virtue, C. K. Hargrove, C. Mifflin, C. Ouellet, C. W. Nally, D. L. Wark, D. R. Grant, D. Sinclair, D. Waller, E. B. Norman, E. D. Earle, E. D. Hallman, E. Rollin, E. W. Beier, F. A. Duncan, F. Dalnoki-Veress, F. Fleurot, G. A. Cox, G. Doucas, G. G. Miller, G. McGregor, G. T. Ewan, G. Tešić, H. B. Mak, H. C. Evans, H. Fergani, H. Labranche, H. Wan Chan Tseung, I. Levine, I. T. Lawson, J. A. Dunmore, J. A. Formaggio, J. B. Wilhelmy, J. Boger, J. C. Hall, J. F. Wilkerson, J. Farine, J. Heise, J. J. Simpson, J. L. Orrell, J. Law, J. M. Wouters, J. Maneira, J. R. Klein, J. R. Leslie, J. R. Wilson, J. N. Bahcall, K. Frame, K. Graham, K. K. S. Miknaitis, K. M. Heeger, K. T. Lesko, K. Zuber, L. C. Stonehill, M. A. Howe, M. Chen, M. Dunford, M. G. Boulay, M. G. Bowler, M. H. Schwendener, M. M. Fowler, M. R. Dragowsky, M. S. Kos, M. Thomson, M. Thorman, M. W. E. Smith, M. Yeh, N. A. Jelley, N. Gagnon, N. McCauley, N. S. Oblath, N. Starinsky, N. West, O. Simard, P. J. Doe, P. J. Harvey, P. Jagam, P. Skensved, R. G. H. Robertson, R. G. Stokstad, R. G. Van de Water, R. Hazama, R. J. Hemingway, R. L. Hahn, R. L. Helmer, R. Lange, R. MacLellan, R. S. Dosanjh, R. Tafirout, R. Van Berg, R. W. Ollerhead, S. D. Biller, S. J. Brice, S. J. M. Peeters, S. Luoma, S. M. Oser, S. Majerus, S. McGee, S. N. Ahmed, S. R. Elliott, S. S. E. Rosendahl, S. P. Mikheyev, T. J. Bowles, T. Kirsten, T. Kutter, T. V. Bullard, V. L. Rusu, W. B. Handler, W. J. Heintzelman, X. Chen, X. Dai, Y. D. Chan, Y. Takeuchi, Z. Maki   +134 more
core   +3 more sources

Comparison of measured and Monte Carlo calculated dose distributions from indigenously developed 6 MV flattening filter free medical linear accelerator

Journal of Medical Physics, 2018
Purpose: Monte Carlo simulation was carried out for a 6 MV flattening filter-free (FFF) indigenously developed linear accelerator (linac) using the BEAMnrc user-code of the EGSnrc code system. The model was benchmarked against the measurements.
Bibekananda Mishra, Subhalaxmi Mishra, T Palani Selvam, S T Chavan, S N Pethe   +4 more
doaj   +1 more source