- Amran city ,Yemen
Aurangabad , India - 00919561496642, 00967770608087
Abdu Hamoud Al-khawlany
Dr.Babasaheb Ambedkar Marathwada University, Physics, Graduate Student
- Physics, Mass attenuation coefficient, Attenuation, Radiation Protection, Gamma Rays, Natural Radioactivity Concentratio, and 10 moreRadiation Protection, Environmental Radioactivity; and Law Anf Regulation of Ionizinhg Radiation, Radionuclides, Radioactivity, Gamma rays spectroscopy, HPGe detector, Radiation Hazard, Nuclear Physics, Soil Samples, Radiation, and Radonedit
- M. Sc, Ph. D. Physics Professor (Assistant) at Amran University of Technology
I am a researcher in Physics (Nuclear Physics).edit
The environment around us is radioactive due to background radiation emitted from the sky, earth's crust, food, water, and building materials. The human body gets exposed to radiation doses of about 82%, which are out of control; they... more
The environment around us is radioactive due to background radiation emitted from the sky, earth's crust, food, water, and building materials. The human body gets exposed to radiation doses of about 82%, which are out of control; they arise from background radiation sources such as terrestrial, cosmic, and exposure to internal radiation. The background dose from cosmic radiation depends on the altitude, and regions with high altitude have high radiation doses. Natural radioactivity is present in the earth and is present in the different environment geological formations in the rocks and soils. Gamma radiation emitted from naturally occurring radioisotopes, such as 40K and the radionuclides from the 232Th and 238U series and their decay products which exist as trace levels in all ground formations, represents the main external source of irradiation to the human body. Their concentrations in rocks, soils, and sands depend on the local geology of each region in the world. Naturally occurring radioactive materials have terrestrial-origin radionuclides since the creation of the earth. The dose rate of background radiation increases because of the existence of some quarries and springs in some regions which are called high-level background radiation regions. The type of construction materials used in houses can be affecting the dose rate of background radiations. Study of radioactivity in the environment is important to monitor the levels of radiation to which human is exposed directly or indirectly. Recently, several international studies have been done and different values were measured. In this article, a review and literature survey of background radiations such as terrestrial, cosmic, and food radiation was carried out.
Research Interests:
One of the sources of radiation risk in dwellings made of rocks is primordial radionuclides. It is imperative to assess the levels of radioactivity due to gamma rays from these materials and consequently to determine the dose rate from... more
One of the sources of radiation risk in dwellings made of rocks is primordial radionuclides. It is imperative to assess the levels of radioactivity due to gamma rays from these materials and consequently to determine the dose rate from these materials. Fourteen samples of rock were collected from various sites of Aurangabad-India and the level of radioactivity and elemental compositions of samples have been measured utilizing gamma-ray spectroscopy and EDXRF technique. The findings showed that the mean activity concentrations of the 226Ra, 232Th, and 40K were 6.883, 10.841 and 128.616 Bq/kg, lower than the global average values of 35, 30, and 400 Bq/kg. The obtained results were compared with the worldwide average as well as with similar studies. The ratios among the detected radioisotopes in rocks were computed for the spatial distribution of natural radionuclides in the studied area. The radiological risk parameters were estimated and compared with internationally recommended values. The Pearson correlation was used to determine the relationship between the radionuclide concentration and radioactive variables, as well as with the elemental compositions. EDXRF results indicate that SiO2, Al2O3, K2O, CaO, TiO2, Na2O, MgO, P2O5, MnO, and Fe2O3 are the major oxides present in the samples. Moreover, heavy metals such as V, Cr, Co, Ni, Cu, Zn, As, Ba, Cd, Hg, and Pb with varying concentrations were detected. The radiological assessment indicated that the rocks of the study area are radiologically safe and may be used for construction without causing any threat to human health.
Research Interests:
Inspection of the radioactivity level in the soil is very important for human health and environmental protection. This study aims at evaluating the radiological hazards and pollution risks related to natural radionuclides and elements in... more
Inspection of the radioactivity level in the soil is very important for human health and environmental protection. This study aims at evaluating the radiological hazards and pollution risks related to natural radionuclides and elements in the selected soil samples. Ten samples of soil were collected from different sites of Aurangabad-India and the level of radioactivity was measured using gamma-ray spectrometry with NaI (Tl) detector. Furthermore, the Physico-chemical properties such as pH, organic matter, electrical conductivity, moisture, soil texture, etc., and elemental composition of soils have been decided on using various standard techniques. The mean concentrations of 226Ra, 232Th, and 40K were 8.178, 17.408, and 96.496 Bq/kg, respectively, which are lower than the global average values of 35, 30, and 400 Bq/kg, respectively (UNSCEAR, 2000). The radiological hazard indices such as radium equivalent, absorbed dose, annual effective dose, internal index, external index, gamma ...
Research Interests:
Young Scientist Award in “International Scientist Awards on Engineering, Science and Medicine” to Dr. Abdu Hamoud Ahmad Al-khawlany, Research Scholar, Department of Physics, Dr. Babasaheb Ambedkar University, Aurangabad, India.
Research Interests:
The study of attenuation coefficients of various materials is an important part of research in radiation physics, chemistry, human health, and agriculture. In addition, the linear and mass absorption coefficients have a major role in the... more
The study of attenuation coefficients of various materials is an important part of research in radiation physics, chemistry, human health, and agriculture. In addition, the linear and mass absorption coefficients have a major role in the estimation of absorbed dose use in the medical and radiation dosimetry. In this paper, the liner and mass absorption coefficients, half-value layer, tenth value layer, and mean free path have been determined by performing the experiment of gamma irradiation on soil samples for gamma energy 0.360 MeV using NaI(Tl) detector. Furthermore, the physicochemical properties of the investigated soil samples were measured using standard methods to assess soil quality. Samples of soil were collected from different sites of AurangabadIndia and prepared using standard techniques. The mass attenuation coefficient decreases exponentially with increasing density and confirms the interaction of gamma-ray with different soil samples of various components. The mass ab...
Research Interests:
One of the sources of radiation risk in dwellings made of rocks is primordial radionuclides. It is imperative to assess the levels of radioactivity due to gamma rays from these materials and consequently to determine the dose rate from... more
One of the sources of radiation risk in dwellings made of rocks is primordial radionuclides. It is imperative to assess the levels of radioactivity due to gamma rays from these materials and consequently to determine the dose rate from these materials. Fourteen samples of rock were collected from various sites of Aurangabad-India and the level of radioactivity and elemental compositions of samples have been measured utilizing gamma-ray spectroscopy and EDXRF technique. The findings showed that the mean activity concentrations of the 226Ra, 232Th, and 40K were 6.883, 10.841 and 128.616 Bq/kg, lower than the global average values of 35, 30, and 400 Bq/kg. The obtained results were compared with the worldwide average as well as with similar studies. The ratios among the detected radioisotopes in rocks were computed for the spatial distribution of natural radionuclides in the studied area. The radiological risk parameters were estimated and compared with internationally recommended values. The Pearson correlation was used to determine the relationship between the radionuclide concentration and radioactive variables, as well as with the elemental compositions. EDXRF results indicate that SiO2, Al2O3, K2O, CaO, TiO2, Na2O, MgO, P2O5, MnO, and Fe2O3 are the major oxides present in the samples. Moreover, heavy metals such as V, Cr, Co, Ni, Cu, Zn, As, Ba, Cd, Hg, and Pb with varying concentrations were detected. The radiological assessment indicated that the rocks of the study area
are radiologically safe and may be used for construction without causing any threat to human health.
are radiologically safe and may be used for construction without causing any threat to human health.
Research Interests:
The study of attenuation coefficients of various materials is an important part of research in radiation physics, chemistry, human health, and agriculture. In addition, the linear and mass absorption coefficients have a major role in the... more
The study of attenuation coefficients of various materials is an important part of research in radiation physics, chemistry, human health, and agriculture. In addition, the linear and mass absorption coefficients have a major role in the estimation of absorbed dose use in the medical and radiation dosimetry. In this paper, the liner and mass absorption coefficients, half-value layer, tenth value layer, and mean free path have been determined by performing the experiment of gamma irradiation on soil samples for gamma energy 0.360 MeV using NaI(Tl) detector. Furthermore, the physicochemical properties of the investigated soil samples were measured using standard methods to assess soil quality. Samples of soil were collected from different sites of Aurangabad-India and prepared using standard techniques. The mass attenuation coefficient decreases exponentially with increasing density and confirms the interaction of gamma-ray with different soil samples of various components. The mass absorption coefficient depends on sample density, gamma energy, the chemical composition of the soil, and its physical properties. The experimentally measured values are in good agreement which validates the gamma absorption law. Generally, the absorption coefficients of gamma-ray measured in this study can be used for the determination of gamma-ray interaction with any soil samples. The study has practical importance to know the nature of the soil to be used in agriculture and construction purposes.
Research Interests:
Inspection of the radioactivity level in the soil is very important for human health and environmental protection. This study aims at evaluating the radiological hazards and pollution risks related to natural radionuclides and elements in... more
Inspection of the radioactivity level in the soil is very important for human health and environmental protection. This study aims at evaluating the radiological hazards and pollution risks related to natural radionuclides and elements in the selected soil samples. Ten samples of soil were collected from different sites of Aurangabad-India and the level of radioactivity was measured using gamma-ray spectrometry with NaI (Tl) detector. Furthermore, the Physico-chemical properties such as pH, organic matter, electrical conductivity, moisture, soil texture, etc., and elemental composition of soils have been decided on using various standard techniques. The mean concentrations of 226Ra, 232Th, and 40K were 8.178, 17.408, and 96.496 Bq/kg, respectively, which are lower than the global average values of 35, 30, and 400
Bq/kg, respectively (UNSCEAR, 2000). The radiological hazard indices such as radium equivalent, absorbed dose, annual effective dose, internal index, external index, gamma index, excess lifetime cancer risk, etc., were calculated to assess the radiation hazards and compared with internationally recommended values which found to be lower than the permissibility limits. The Pearson correlation was applied to determine the existing relationship between radionuclides and radiological health hazard parameters, as well as with the physicochemical properties of the soil samples. The major and trace elements presented in soils were measured and their mean concentration was ranked in the formed order (Mg>Na>Ca>K>N>Mn>Fe>P>Zn>Cu). The pollution risk parameters (Geo-accumulation index, contamination factor, degree of contamination, pollution load index, and potential ecological risk index) related to the elements in the samples were assessed and results shown that the soils under study are unpolluted with the measured elements. Generally, the radioactivity levels and pollution risks indices in the soils of the study area are within the permissible safety limits and do not cause any significant health threat to humans. Thus, the presented data provide a general background of the detectable radionuclides for the study area and can be helpful in the future as a reference for more extensive studies in the same field.
Bq/kg, respectively (UNSCEAR, 2000). The radiological hazard indices such as radium equivalent, absorbed dose, annual effective dose, internal index, external index, gamma index, excess lifetime cancer risk, etc., were calculated to assess the radiation hazards and compared with internationally recommended values which found to be lower than the permissibility limits. The Pearson correlation was applied to determine the existing relationship between radionuclides and radiological health hazard parameters, as well as with the physicochemical properties of the soil samples. The major and trace elements presented in soils were measured and their mean concentration was ranked in the formed order (Mg>Na>Ca>K>N>Mn>Fe>P>Zn>Cu). The pollution risk parameters (Geo-accumulation index, contamination factor, degree of contamination, pollution load index, and potential ecological risk index) related to the elements in the samples were assessed and results shown that the soils under study are unpolluted with the measured elements. Generally, the radioactivity levels and pollution risks indices in the soils of the study area are within the permissible safety limits and do not cause any significant health threat to humans. Thus, the presented data provide a general background of the detectable radionuclides for the study area and can be helpful in the future as a reference for more extensive studies in the same field.
Research Interests:
The variation of radiation shielding parameters like linear and mass attenuation coefficients, half value layer, tenth value layer and mean free path with different soil samples of various chemical compositions and physical properties has... more
The variation of radiation shielding parameters like linear and mass attenuation coefficients, half value layer, tenth value layer and mean free path with different soil samples of various chemical compositions and physical properties has been investigated using gamma ray spectrometer NaI(Tl) atthe gamma energies of 360, 662, 1280, 1330 KeV emitted from radioactive isotopes of 133 Ba, 137 Cs, 22 Na and 60 Co, respectively. For this work, soil samples were collected from different sites of Aurangabad, India, and then prepared using standard techniques. The study of attenuation coefficients of various materials has been an important part of research in radiation physics, chemistry, agriculture and human health. This study aims to investigate of radiation shielding properties for various soils of various components. For the attenuation coefficients, a significant variation is observed in low and high energy regions whereas there is no notable change in the intermediate region. The results have been discussed on the basis of obtained attenuation coefficients of different partial photon interaction processes. It is observed that the variation of obtained values of all parameters strongly depends on the photon energy; it decreases or increases due to chemical composition and density of the sample. The study has practical importance to know the nature of the soils in the construction and agricultural purposes. Generally, the radiation shielding parameters determined in this study can be used for determination of gamma emitters in any soil samples.
Research Interests:
The environment around us is radioactive due to background radiation emitted from the sky, earth’s crust, food, water, and building materials. The human body gets exposed to radiation doses of about 82%, which are out of control; they... more
The environment around us is radioactive due to background radiation emitted from the sky, earth’s crust, food, water, and building materials. The human body gets exposed to radiation doses of about 82%, which are out of control; they arise from background radiation sources such as terrestrial, cosmic, and exposure to
internal radiation. The background dose from cosmic radiation depends on the altitude, and regions with high altitude have high radiation doses. Natural radioactivity is present in the earth and is present in the different environment geological formations in the rocks and soils. Gamma radiation emitted from naturally occurring
radioisotopes, such as 40K and the radionuclides from the 232Th and 238U series and their decay products which exist as trace levels in all ground formations, represents the main external source of irradiation to the human body. Their concentrations in rocks, soils, and sands depend on the local geology of each region
in the world. Naturally occurring radioactive materials have terrestrial-origin radionuclides since the creation of the earth. The dose rate of background radiation increases because of the existence of some quarries and
springs in some regions which are called high-level background radiation regions. The type of construction materials used in houses can be affecting the dose rate of background radiations. Study of radioactivity in the
environment is important to monitor the levels of radiation to which human is exposed directly or indirectly. Recently, several international studies have been done and different values were measured. In this article, a review and literature survey of background radiations such as terrestrial, cosmic, and food radiation was carried out.
internal radiation. The background dose from cosmic radiation depends on the altitude, and regions with high altitude have high radiation doses. Natural radioactivity is present in the earth and is present in the different environment geological formations in the rocks and soils. Gamma radiation emitted from naturally occurring
radioisotopes, such as 40K and the radionuclides from the 232Th and 238U series and their decay products which exist as trace levels in all ground formations, represents the main external source of irradiation to the human body. Their concentrations in rocks, soils, and sands depend on the local geology of each region
in the world. Naturally occurring radioactive materials have terrestrial-origin radionuclides since the creation of the earth. The dose rate of background radiation increases because of the existence of some quarries and
springs in some regions which are called high-level background radiation regions. The type of construction materials used in houses can be affecting the dose rate of background radiations. Study of radioactivity in the
environment is important to monitor the levels of radiation to which human is exposed directly or indirectly. Recently, several international studies have been done and different values were measured. In this article, a review and literature survey of background radiations such as terrestrial, cosmic, and food radiation was carried out.
Research Interests:
The activity concentrations of radionuclides 226 Ra, 232 Th and 40 K in soil samples collected from different locations of Aurangabad were determined using gamma ray spectrometry system NaI (Tl) detector. The aim of this study is to... more
The activity concentrations of radionuclides 226 Ra, 232 Th and 40 K in soil samples collected from different locations of Aurangabad were determined using gamma ray spectrometry system NaI (Tl) detector. The aim of this study is to determine the level of natural radioactivity and associated radiological hazard caused by natural radioactivity in soil samples. We analyzed the spectra of samples using a multichannel analyzer (MCA) connected with the measurement system for this purpose. Activity concentrations of 226 Ra , 232 Th and 40 K were determined in Bq.kg-1 and radiation hazard indices were calculated. The activity concentrations of natural radionuclides were found to vary from 7.425 to 12.862 Bq kg-1 with an average value of 9.189 Bq kg-1 for 226 Ra, from 18.898 to 21.316 Bq k-1 with an average value of 20.176 Bq kg-1 for 232 Th, and from 60.508 to 120.142 Bqkg-1 with an average value of 94.464 Bq kg-1 for 40 K. The concentrations of these radionuclides are compared with the values of the control samples and the UNSCEAR, 2000 standards of 35.0, 30.0 and 400 Bq/kg for 226 Ra, 232 Th and 40 K respectively. The measured activity concentration of 226 Ra, 232 Th and 40 K in soil samples is lower than the world average. The variations of the assessed radiological hazard parameters indices Raeq, Iγ, Hex, Hin, Eff and Dr of natural radionuclides were found to be as follows: 39.891-50.638 Bq k-1 , 0.286-0.363, 0.108-0.137, 0.128-0.172, 0.022-0.028 msvy-1 and 17.792-22.825 nGyh-1 respectively. The results were comparable to reported data worldwide. Thus all the samples studied exhibit radiation well within the permissible limit and have normal levels of natural background radiation. We can conclude that the soil area under study can be used as building materials.
Research Interests:
The liner and mass absorption coefficient of various soil samples (density ranges between 1.1308 and 1.3959gcm-3) collected from four sites distributed in Aurangabad region of India have been determined for gamma ray sources 133 Ba, 137... more
The liner and mass absorption coefficient of various soil samples (density ranges between 1.1308 and 1.3959gcm-3) collected from four sites distributed in Aurangabad region of India have been determined for gamma ray sources 133 Ba, 137 Cs, 22 Na, 60 Co with gamma-ray energy of 0.360MeV, o.662MeV,1.28MeV and 1.33 MeV using gamma spectrometry NaI scintillator/PMT detector and MCA system. Attenuation coefficient is of interest to scientists and research in different areas of present day technology.Samples are prepared using standard techniques and the attenuation constants estimated are presented. It is found that the linear attenuation coefficient is in the range of 1.0520 to 1.0813, 1.0645 to 1.1603, 1.0387 to 1.1504 and 1.0336 to 1.1115 cm-1 for 133 Ba, 137 Cs, 22 Na and 60 Co respectively. Also the mass attenuation coefficient is found in the range of 0.7687 to 0.9562, 0.7632 to 0.9648, 0.8130 to 0.9336 and 0.7794 to 0.9140 cm 2 /gm for 133 Ba, 137 Cs, 22 Na and 60 Co respectively. The work presented is part of a survey recently conducted with larger database. In general, mass attenuation coefficients determined in this study can be used for determination of gamma emitters in any soil samples. This method is useful for the study of properties the soils in agriculture purposes.
Research Interests:
The activity concentrations of natural radionuclides (226 Ra, 232 Th and 40 K) in the soil samples collected from different area of Aurangabad, India were determined by gamma ray spectroscopy using a well calibrated NaI (Tl) detector... more
The activity concentrations of natural radionuclides (226
Ra, 232
Th and 40
K) in the soil samples collected from different area of
Aurangabad, India were determined by gamma ray spectroscopy using a well calibrated NaI (Tl) detector system. The range of activity
concentrations of (226
Ra, 232
Th and 40
K) were found to be (4.169 to 12.862, 8.658 to 21.316 and 40.088 to 130.87) Bq.kg-1
respectively.
With an average value of 8.178, 17.408 and 96.496 Bq.kg-1
respectively, which are low when compared with worldwide average of 35, 30
and 400 Bq.kg-1
. The radium equivalent activity concentration was found in the range from 29.379 to 50.638 Bqkg-1
, the absorbed dose rate
was found to be in the range from 13.640 to 22.825 nGyh-1
with an average value of 18.317 nGyh-1
, and the outdoor annual effective dose
was found to vary from 0.017 to 0.027 mSvy-1
, which is below the safety limit of 1 mSv.y-1
as recommended by International Commission
on Radiological Protection .Also, the internal and external hazard indices and gamma index were found to be less than unity, therefore the
soil samples exhibit radiation well within the permissible limit and thus are safe.
Ra, 232
Th and 40
K) in the soil samples collected from different area of
Aurangabad, India were determined by gamma ray spectroscopy using a well calibrated NaI (Tl) detector system. The range of activity
concentrations of (226
Ra, 232
Th and 40
K) were found to be (4.169 to 12.862, 8.658 to 21.316 and 40.088 to 130.87) Bq.kg-1
respectively.
With an average value of 8.178, 17.408 and 96.496 Bq.kg-1
respectively, which are low when compared with worldwide average of 35, 30
and 400 Bq.kg-1
. The radium equivalent activity concentration was found in the range from 29.379 to 50.638 Bqkg-1
, the absorbed dose rate
was found to be in the range from 13.640 to 22.825 nGyh-1
with an average value of 18.317 nGyh-1
, and the outdoor annual effective dose
was found to vary from 0.017 to 0.027 mSvy-1
, which is below the safety limit of 1 mSv.y-1
as recommended by International Commission
on Radiological Protection .Also, the internal and external hazard indices and gamma index were found to be less than unity, therefore the
soil samples exhibit radiation well within the permissible limit and thus are safe.
Research Interests:
The level of natural radioactivity in some soil and rock samples collected from different locations of Aurangabad, Maharashtra-India were measured. Concentrations of radionuclides in soil and rock samples were determined by gamma-ray... more
The level of natural radioactivity in some soil and rock samples collected from different locations of Aurangabad, Maharashtra-India were measured. Concentrations of radionuclides in soil and rock samples were determined by gamma-ray spectrometer using HPGe detector (High Purity Germanium) detector based, low background gamma-ray counting system with specially designed shield. The mean activity level of the natural radionuclides 226 Ra, 232 Th and 40 K is 5.673 ± 0.325, 9.163 ± 0.525 and 168.25±5.8 Bq kg-1 , respectively. These values are lower than the world average concentrations 35, 30 and 400 Bq kg-1 for 226 Ra , 232 Th and 40 K, respectively (UNSCEAR, 2000). From the measured specific radio activities of the above three natural radionuclides, the radium equivalent activity, the absorbed dose rate, the annual effective dose, the external hazard index, the internal hazard index, the gamma index and alpha index were calculated. The mean values obtained are, 31.874Bq kg-1 , 15.171nGy h-1 , 0.019mSv y-1 , 0.086, 0.101, 0.242 and 0.028 for radium equivalent activity (Ra eq), absorbed dose rates (D), annual effective dose rates (E ff Dose), external hazard index (H ex), internal hazard index (H in), gamma index(I γ) and alpha index (I α) respectively. All the health hazard indices are well below their recommended limits. This indicated that the study area was radiologically safe for human being. This research work recommends further studies to estimate internal and external doses from other suspected radiological sources to the population in Aurangabad, Maharashtra-India.
Research Interests:
AbstractThe natural radioactivity of K40, Th232and Ra226 in rocks and soils samples collected around Aurangabad-Maharashtra in India. The concentration of radionuclide in samples were determined by gamma-ray spectrometer NaI(Tl) detector.... more
AbstractThe natural radioactivity of K40, Th232and Ra226 in rocks and soils samples collected around Aurangabad-Maharashtra in India. The concentration of radionuclide in samples were determined by gamma-ray spectrometer NaI(Tl) detector. The aim of the present work is to measure the levels of natural radioactivity in the selected samples. In addition to this radiological hazard assessment due to natural radionuclide carried out and the average activity concentration of 226Ra, 232Th, 40K will be determined. The Radium equivalent, air absorbed gamma radiation dose rate and external radiation hazard index and the annual effective radiation dose were calculated in this study.
Research Interests:
Attenuation coefficient is of interest to scientists and research in different areas of present day technology. Study of linear and mass attenuation coefficients for soil samples collected from outskirts of Aurangabad,... more
Attenuation coefficient is of interest to scientists and research in different
areas of present day technology. Study of linear and mass attenuation coefficients for
soil samples collected from outskirts of Aurangabad, Maharashtra, India is presented.
This study makes use of a gamma ray spectrometer with 8 K channels and γ ray
source 137Cs with γ ray energy of 662 KeV. Samples are prepared using standard
techniques and the attenuation constants estimated are presented
areas of present day technology. Study of linear and mass attenuation coefficients for
soil samples collected from outskirts of Aurangabad, Maharashtra, India is presented.
This study makes use of a gamma ray spectrometer with 8 K channels and γ ray
source 137Cs with γ ray energy of 662 KeV. Samples are prepared using standard
techniques and the attenuation constants estimated are presented
Research Interests:
The natural radioactivity of K40, Th232and Ra226 in rocks and soils samples collected around Aurangabad-Maharashtra in India. The concentration of radionuclide in samples were determined by gamma-ray spectrometer NaI(Tl) detector. The aim... more
The natural radioactivity of K40, Th232and Ra226 in rocks and soils samples collected around Aurangabad-Maharashtra in India. The concentration of radionuclide in samples were determined by gamma-ray spectrometer NaI(Tl) detector. The aim of the present work is to measure the levels of natural radioactivity in the selected samples. In addition to this radiological hazard assessment due to natural radionuclide carried out and the average activity concentration of 226Ra, 232Th, 40K were determined. The Radium equivalent, air absorbed gamma radiation dose rate and external radiation hazard index and the annual effective radiation dose were calculated in this study.
The activity concentrations of some soil samples in the environment collected from different locations of Aurangabad were determined by using gamma ray spectrometry system. In this work we determined the radioactivity of the soil... more
The activity concentrations of some soil samples in the environment collected from different locations of Aurangabad were determined by using gamma ray spectrometry system. In this work we determined the radioactivity of the soil samples and also methods and procedures used in the detection of radioactivity of the soil samples. The aim of this study is to assessment the concentrations of 40K, 226Ra and 232Th in the environmental soil samples using NaI (Tl) detector "2X2". Measurements of radioactivity in the environment are important to monitor and control the levels of radiation to which man is exposed directly or indirectly. The environment around people is radioactive due to ionizing radiation from the sky, the Earth's crust, and various atoms existing in the water, food, rocks, soils and metals. The objectives of this study are to determine the level of natural radioactivity and associated radiological hazard caused by natural radioactivity in local environmental soils collected from different places in Aurangabad Maharashtra India and it has been measured using NaI(Tl) "2x2" well detector. These samples were analyzed using gamma-ray spectrometry technique. The spectra of samples were collected and measured using a multichannel analyzer (MCA) connected with the measurement system for this purpose. Activity concentrations of 226Ra (238U series), 232Th and 40K were determined in Bq.kg-1 and radiation hazard indices were calculated.
Research Interests:
The natural radioactivity of K40, Th232and Ra226 in rocks and soils samples collected around Aurangabad-Maharashtra in India. The concentration of radionuclide in samples were determined by gamma-ray spectrometer NaI(Tl) detector. The aim... more
The natural radioactivity of K40, Th232and Ra226 in rocks and soils samples collected around Aurangabad-Maharashtra in India. The concentration of radionuclide in samples were determined by gamma-ray spectrometer NaI(Tl) detector. The aim of the present work is to measure the levels of natural radioactivity in the selected samples. In addition to this radiological hazard assessment due to natural radionuclide carried out and the average activity concentration of 226Ra, 232Th, 40K were determined. The Radium equivalent, air absorbed gamma radiation dose rate and external radiation hazard index and the annual effective radiation dose were calculated in this study
Research Interests: Nuclear Physics, Radiation Physics, Radiation Dosimetry, Radiation Protection, Nuclear Energy, and 9 moreGamma Spectrometry, Environmental Radioactivity, Nuclear Scintillation, Radioactive Tracers, Radiation Protection, Environmental Radioactivity; and Law Anf Regulation of Ionizinhg Radiation, Environmental Radioactivity, Radon, Naturally occurring Radioactive Materials and effects to life forms and environmental, Natural Radioactivity, and HPGe detector
Attenuation coefficient is of interest to scientists and research in different areas of present day technology. Study of linear and mass attenuation coefficients for soil samples collected from outskirts of Aurangabad, Maharashtra, India... more
Attenuation coefficient is of interest to scientists and research in different areas of present day technology. Study of linear and mass attenuation coefficients for soil samples collected from outskirts of Aurangabad, Maharashtra, India is presented. This study makes use of a gamma ray spectrometer with 8 K channels and γ ray source 137Cs with γ ray energy of 662 KeV. Samples are prepared using standard techniques and the attenuation constants estimated are presented.