Determination of uranium and thorium and measurement of alpha-particles in lsi materials

1981 ◽  
Vol 63 (2) ◽  
pp. 345-351 ◽  
Author(s):  
K. Kudo ◽  
T. Shigematsu ◽  
H. Yonezawa ◽  
K. Kobayashi
Keyword(s):  
Alpha Particles

Determination of the Ranges and Straggling of Low-Energy Alpha Particles in a Cloud Chamber

1954 ◽  
Vol 96 (3) ◽  
pp. 673-678 ◽  
Author(s):  
S. Barile ◽  
R. Webeler ◽  
G. Allen
Keyword(s):  
Alpha Particles ◽  
Cloud Chamber ◽  
Low Energy

scholarly journals Determination of Alpha Particles Concentration in Toothpaste Using CR-39 Track Detector

Detection ◽  
2015 ◽  
Vol 03 (02) ◽  
pp. 9-13
Author(s):  
Fouad A. Majeed ◽  
Inaam H. Kadhim ◽  
Ali O. Muhsen ◽  
Khalid H. Abass
Keyword(s):  
Track Detector ◽  
Alpha Particles

Determination of Radon and Uranium Concentrations in Soil Samples Iraqi Cities

2014 ◽  
Vol 4 (1) ◽  
pp. 286-290
Author(s):  
Heiyam Najy Hady Majeed
Keyword(s):  
Experimental Data ◽  
Solid State ◽  
Soil Sample ◽  
Maximum Concentration ◽  
Soil Samples ◽  
Alpha Particles ◽  
Investigation And Study ◽  
Existing Data

In this investigation the concentrations of radon and uranium levels in 180 soil samples distributed in 18 cities in  Iraqi Country have been measured using long term technique for alpha particles emission with solid state nuclear track detecror type CR-39 . The maximum concentrations of radon was (261.54Bqm-3) in soil sample No. (18) : Basra city , while the minimum activity was (86.80 Bqm-3) in soil sample No. (6): Salahaddin city. The uranium concentrations in the same cities have been measured in (ppm) unit the maximum concentration was (0.0201) in soil sample No. (18):Basra city , while the minimum activity was (0.0067) in soil sample No. (6):Salahaddin city.  The variable values of radon and uranium concentrations may be mentioned that Iraq cities have variable geologies ,despite the limitation of existing data the observational and experimental data presented here is the first investigation and study provided a basis for the radon and uranium map in whole Iraq.

Determination of the range of alpha particles in SSNTD by optical density method

1999 ◽  
Vol 31 (1-6) ◽  
pp. 241-244 ◽  
Author(s):  
M. El Hofy ◽  
H. El Samman ◽  
W. Arafa
Keyword(s):  
Optical Density ◽  
Alpha Particles ◽  
Density Method

scholarly journals Directional Track Selection Technique in CR39 SSNTD for lowyield reaction experiments

2018 ◽  
Vol 167 ◽  
pp. 05006 ◽  
Author(s):  
Francesco Ingenito ◽  
Pierluigi Andreoli ◽  
Dimitri Batani ◽  
Aldo Bonasera ◽  
Guillaume Boutoux ◽  
...  
Keyword(s):  
Cross Sections ◽  
Track Detector ◽  
Alpha Particles ◽  
Fusion Reactions ◽  
Particle Recognition ◽  
Low Energies ◽  
Nuclear Fusion Reactions ◽  
Fusion Products ◽  
Specific Experiment

There is a great interest in the study of p-11B aneutronic nuclear fusion reactions, both for energy production and for determination of fusion cross-sections at low energies. In this context we performed experiments at CELIA in which energetic protons, accelerated by the laser ECLIPSE, were directed toward a solid Boron target. Because of the small cross-sections at these energies the number of expected reactions is low. CR39 Solid-State Nuclear Track Detectors (SSNTD) were used to detect the alpha particles produced. Because of the low expected yield, it is difficult to discriminate the tracks due to true fusion products from those due to natural background in the CR39. To this purpose we developed a methodology of particle recognition according to their direction with respect to the detector normal, able to determine the position of their source. We applied this to the specific experiment geometry, so to select from all the tracks those due to particles coming from the region of interaction between accelerated protons and solid boron target. This technique can be of great help on the analysis of SSNTD in experiments with low yield reactions, but can be also generally applied to any experiment where particles reach the track detector with known directions, and for example to improve the detection limit of particle spectrometers using CR39.

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