Encapsulation of < sup > 67 < /sup > Cu therapeutic radiometal in luminescent lanthanide phosphate core and core-shell nanoparticles
Appl Radiat Isot. 2022 May 18;186:110296. doi: 10.1016/j.apradiso.2022.110296. Online ahead of print.ABSTRACTCopper-67 (67Cu) has physical characteristics useful for both therapy and imaging. However, its applicability has been hindered by the complexity of obtaining large quantities of a product with high specific activity. With the advancement of 67Cu production methods, suitable radioisotope carriers are sought. Lanthanide phosphate nanoparticles have demonstrated their multifunctional characteristics for biomedical applications and, more recently, their potential in radiopharmaceuticals. Thus, we produced luminescent l...
Source: Applied Radiation and Isotopes - May 23, 2022 Category: Radiology Authors: J V Rojas R V Umretiya M C Molina-Higgins A Gawi S Gobalakrishnan J Zweit Source Type: research

Exploration of producing Uranium-232 for use as a tracer in uranium fuels
This study examines the production of 232U via neutron irradiation. Uranium-232 is considered for use as a tracer in nuclear fuel. However, a source of 232U is needed. This study examines the production of 232U via neutron irradiation of targets constructed out of either 231Pa or 230Th in the High Flux Isotope Reactor. HFIR targets were modeled in MCNP to determine 232U yield in protactinium and thorium targets. Flux tallies were used inside the targets to determine the neutron flux inside each target. This flux was then used in SCALE 6.2 ORIGEN to determine the 232U yield, as well as the buildup of the byproduct 233U. Sev...
Source: Applied Radiation and Isotopes - May 23, 2022 Category: Radiology Authors: Joshua Rhodes G Ivan Maldonado Source Type: research

Encapsulation of < sup > 67 < /sup > Cu therapeutic radiometal in luminescent lanthanide phosphate core and core-shell nanoparticles
Appl Radiat Isot. 2022 May 18;186:110296. doi: 10.1016/j.apradiso.2022.110296. Online ahead of print.ABSTRACTCopper-67 (67Cu) has physical characteristics useful for both therapy and imaging. However, its applicability has been hindered by the complexity of obtaining large quantities of a product with high specific activity. With the advancement of 67Cu production methods, suitable radioisotope carriers are sought. Lanthanide phosphate nanoparticles have demonstrated their multifunctional characteristics for biomedical applications and, more recently, their potential in radiopharmaceuticals. Thus, we produced luminescent l...
Source: Applied Radiation and Isotopes - May 23, 2022 Category: Radiology Authors: J V Rojas R V Umretiya M C Molina-Higgins A Gawi S Gobalakrishnan J Zweit Source Type: research

Exploration of producing Uranium-232 for use as a tracer in uranium fuels
This study examines the production of 232U via neutron irradiation. Uranium-232 is considered for use as a tracer in nuclear fuel. However, a source of 232U is needed. This study examines the production of 232U via neutron irradiation of targets constructed out of either 231Pa or 230Th in the High Flux Isotope Reactor. HFIR targets were modeled in MCNP to determine 232U yield in protactinium and thorium targets. Flux tallies were used inside the targets to determine the neutron flux inside each target. This flux was then used in SCALE 6.2 ORIGEN to determine the 232U yield, as well as the buildup of the byproduct 233U. Sev...
Source: Applied Radiation and Isotopes - May 23, 2022 Category: Radiology Authors: Joshua Rhodes G Ivan Maldonado Source Type: research

Studies of defect states and kinetic parameters of car windscreen for thermoluminescence retrospective dosimetry
Appl Radiat Isot. 2022 May 12;186:110271. doi: 10.1016/j.apradiso.2022.110271. Online ahead of print.ABSTRACTIn case of any natural disasters or technical failures of nuclear facilities, the surrounding media including human beings may receive unexpected radiation exposures. In such a situation, there is no viable way to know how much radiation dose is received by human beings. Realizing that motorized vehicles are parked at fixed but increasing distances within the nuclear installation and industrial environment, this study investigates the kinetic parameters of readily available car windscreens which form the basis to be...
Source: Applied Radiation and Isotopes - May 22, 2022 Category: Radiology Authors: Mayeen Uddin Khandaker S N Mat Nawi S E Lam D A Bradley S F Abdul Sani M R I Faruque Sabina Yasmin Abubakr M Idris Source Type: research

Studies of defect states and kinetic parameters of car windscreen for thermoluminescence retrospective dosimetry
Appl Radiat Isot. 2022 May 12;186:110271. doi: 10.1016/j.apradiso.2022.110271. Online ahead of print.ABSTRACTIn case of any natural disasters or technical failures of nuclear facilities, the surrounding media including human beings may receive unexpected radiation exposures. In such a situation, there is no viable way to know how much radiation dose is received by human beings. Realizing that motorized vehicles are parked at fixed but increasing distances within the nuclear installation and industrial environment, this study investigates the kinetic parameters of readily available car windscreens which form the basis to be...
Source: Applied Radiation and Isotopes - May 22, 2022 Category: Radiology Authors: Mayeen Uddin Khandaker S N Mat Nawi S E Lam D A Bradley S F Abdul Sani M R I Faruque Sabina Yasmin Abubakr M Idris Source Type: research

Electrochemical co-deposition of Ni-Gd < sub > 2 < /sub > O < sub > 3 < /sub > for composite thin targets preparation: Production of < sup > 155 < /sup > Tb as a case study
Appl Radiat Isot. 2022 May 16;186:110287. doi: 10.1016/j.apradiso.2022.110287. Online ahead of print.ABSTRACTIn the last years, 155Tb has attracted enormous interest due to its potential role in theranostics in nuclear medicine. To estimate its production yield, the aim of this study was to develop a method to prepare thin Gd-enriched-containing targets aimed at the 155Gd(d, 2n)155Tb nuclear cross section measurement. To this end, the electrochemical co-deposition method has been chosen to manufacture Ni-Gd2O3 composite targets. Several process parameters that have an impact on the deposit quality, have been investigated t...
Source: Applied Radiation and Isotopes - May 21, 2022 Category: Radiology Authors: Yizheng Wang Thomas Sounalet Arnaud Guertin F érid Haddad Nathalie Michel Etienne Nigron Source Type: research

Internal dosimetry studies of < sup > 177 < /sup > Lu-BBN-GABA-DOTA, as a cancer therapy agent, in human tissues based on animal data
In this study, the amount of absorbed dose in different organs (spleen, kidney, Lung, Pancreas, Heart, Adrenal, Intestine, Stomach, and Liver) were calculated for 1-MBq accumulation of 177Lu-BBN-GABA-DOTA in source organs (spleen, kidney, Lung, Pancreas, Heart, Adrenal, Intestine, Stomach, and Liver) using Monte Carlo Simulation (GATE code) with Zubal phantom. Moreover, compared with MIRD method, the results of the simulation showed considerable consistency. It was estimated that a 1-MBq administration of 177Lu-BBN-GABA-DOTA to the human body would result in an absorbed dose of 1.07E-02 mGy and 4.97E-02 (MIRD method) and 1...
Source: Applied Radiation and Isotopes - May 20, 2022 Category: Radiology Authors: S A Sahafi-Pour S P Shirmardi E Saeedzadeh S Baradaran M Sadeghi Source Type: research

Radon dosimetry using Solid State Nuclear Track Detectors in different environments: a review
Appl Radiat Isot. 2022 May 6;186:110217. doi: 10.1016/j.apradiso.2022.110217. Online ahead of print.ABSTRACTRadon and its progeny are the major cause of natural radiation emission and its activity concentration is measured by alpha detectors, such as Solid-State Nuclear Track Detector (SSNTD). This work aims to present the applications of CR-39-type SSNTD according to the Natural Radiation Laboratory (LRN) and reports in the literature, aiming to ensure the radioprotection of public and occupationally exposed individuals in indoor and outdoor environments. Therefore, it was reinforced that CR-39 is an important detector fo...
Source: Applied Radiation and Isotopes - May 20, 2022 Category: Radiology Authors: Laura Cardoso Takahashi Talita de Oliveira Santos Rose Mary Marques Pinheiro Ricardo Gomes Passos Zildete Rocha Source Type: research

Internal dosimetry studies of < sup > 177 < /sup > Lu-BBN-GABA-DOTA, as a cancer therapy agent, in human tissues based on animal data
In this study, the amount of absorbed dose in different organs (spleen, kidney, Lung, Pancreas, Heart, Adrenal, Intestine, Stomach, and Liver) were calculated for 1-MBq accumulation of 177Lu-BBN-GABA-DOTA in source organs (spleen, kidney, Lung, Pancreas, Heart, Adrenal, Intestine, Stomach, and Liver) using Monte Carlo Simulation (GATE code) with Zubal phantom. Moreover, compared with MIRD method, the results of the simulation showed considerable consistency. It was estimated that a 1-MBq administration of 177Lu-BBN-GABA-DOTA to the human body would result in an absorbed dose of 1.07E-02 mGy and 4.97E-02 (MIRD method) and 1...
Source: Applied Radiation and Isotopes - May 20, 2022 Category: Radiology Authors: S A Sahafi-Pour S P Shirmardi E Saeedzadeh S Baradaran M Sadeghi Source Type: research

Radon dosimetry using Solid State Nuclear Track Detectors in different environments: a review
Appl Radiat Isot. 2022 May 6;186:110217. doi: 10.1016/j.apradiso.2022.110217. Online ahead of print.ABSTRACTRadon and its progeny are the major cause of natural radiation emission and its activity concentration is measured by alpha detectors, such as Solid-State Nuclear Track Detector (SSNTD). This work aims to present the applications of CR-39-type SSNTD according to the Natural Radiation Laboratory (LRN) and reports in the literature, aiming to ensure the radioprotection of public and occupationally exposed individuals in indoor and outdoor environments. Therefore, it was reinforced that CR-39 is an important detector fo...
Source: Applied Radiation and Isotopes - May 20, 2022 Category: Radiology Authors: Laura Cardoso Takahashi Talita de Oliveira Santos Rose Mary Marques Pinheiro Ricardo Gomes Passos Zildete Rocha Source Type: research

Investigation of level density and Gama strength function for photoneutron reaction in medical linacs in Beamline
Appl Radiat Isot. 2022 May 11;186:110286. doi: 10.1016/j.apradiso.2022.110286. Online ahead of print.ABSTRACTPhotoneutron reaction cross-sections of 197Au, 187Re, 186W, 181Ta, 94,95,96,97,98,100Mo isotopes were calculated through the TALYS 1.95 nuclear reaction code. The energy range of the incident photon chosen as 7 MeV-30 MeV corresponded to the range of the giant dipole resonance region, which is also an applicable energy range in radiotherapy for many commercial medical linear accelerators. Calculations were performed using three phenomenological level density models available in code, namely the Constant Temperature ...
Source: Applied Radiation and Isotopes - May 16, 2022 Category: Radiology Authors: U Oflaz I H Sarp ün H Özdoğan Source Type: research

Investigation of level density and Gama strength function for photoneutron reaction in medical linacs in Beamline
Appl Radiat Isot. 2022 May 11;186:110286. doi: 10.1016/j.apradiso.2022.110286. Online ahead of print.ABSTRACTPhotoneutron reaction cross-sections of 197Au, 187Re, 186W, 181Ta, 94,95,96,97,98,100Mo isotopes were calculated through the TALYS 1.95 nuclear reaction code. The energy range of the incident photon chosen as 7 MeV-30 MeV corresponded to the range of the giant dipole resonance region, which is also an applicable energy range in radiotherapy for many commercial medical linear accelerators. Calculations were performed using three phenomenological level density models available in code, namely the Constant Temperature ...
Source: Applied Radiation and Isotopes - May 16, 2022 Category: Radiology Authors: U Oflaz I H Sarp ün H Özdoğan Source Type: research

Investigation of level density and Gama strength function for photoneutron reaction in medical linacs in Beamline
Appl Radiat Isot. 2022 May 11;186:110286. doi: 10.1016/j.apradiso.2022.110286. Online ahead of print.ABSTRACTPhotoneutron reaction cross-sections of 197Au, 187Re, 186W, 181Ta, 94,95,96,97,98,100Mo isotopes were calculated through the TALYS 1.95 nuclear reaction code. The energy range of the incident photon chosen as 7 MeV-30 MeV corresponded to the range of the giant dipole resonance region, which is also an applicable energy range in radiotherapy for many commercial medical linear accelerators. Calculations were performed using three phenomenological level density models available in code, namely the Constant Temperature ...
Source: Applied Radiation and Isotopes - May 16, 2022 Category: Radiology Authors: U Oflaz I H Sarp ün H Özdoğan Source Type: research

Investigation of level density and Gama strength function for photoneutron reaction in medical linacs in Beamline
Appl Radiat Isot. 2022 May 11;186:110286. doi: 10.1016/j.apradiso.2022.110286. Online ahead of print.ABSTRACTPhotoneutron reaction cross-sections of 197Au, 187Re, 186W, 181Ta, 94,95,96,97,98,100Mo isotopes were calculated through the TALYS 1.95 nuclear reaction code. The energy range of the incident photon chosen as 7 MeV-30 MeV corresponded to the range of the giant dipole resonance region, which is also an applicable energy range in radiotherapy for many commercial medical linear accelerators. Calculations were performed using three phenomenological level density models available in code, namely the Constant Temperature ...
Source: Applied Radiation and Isotopes - May 16, 2022 Category: Radiology Authors: U Oflaz I H Sarp ün H Özdoğan Source Type: research