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Kumar M, Pandey U, Saxena SK, Kumar Y, Gandhi SS, Dash A. Fabrication of miniature 141Ce sources by chemical deposition towards possible use in the performance evaluation of gamma cameras - A feasibility study. Appl Radiat Isot 2019; 154:108865. [PMID: 31445494 DOI: 10.1016/j.apradiso.2019.108865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 08/01/2019] [Accepted: 08/14/2019] [Indexed: 11/26/2022]
Abstract
141Ce sources were fabricated for quality assurance of gamma cameras. The fabrication process consisted of electro-deposition of Ni on a Cu sphere in 0.01 N H2SO4 containing 30 mg/mL H3BO3 and 50 μg of NiSO4·7H2O at pH 2-3 followed by deposition of 141Ce on it. > 95% deposition of 141Ce on substrate could be achieved at pH 5. Source core was loaded in custom-made Al holder. Autoradiography confirmed uniform activity distribution. SEM and EDS analyses confirmed deposition of Cerium on substrate.
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Affiliation(s)
- Manoj Kumar
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India
| | - Usha Pandey
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India.
| | - Sanjay Kumar Saxena
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Yogendra Kumar
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Shyamala S Gandhi
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Ashutosh Dash
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India
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Kumar M, Pandey U, Yadav Y, Gandhi SS, Saxena SK, Kumar Y, Nuwad J, Dash A. Utilization of Chemical Deposition Technique for Preparation of Miniature 170Tm Sources and Preliminary Quality Assessment for Potential Use in Brachytherapy. Cancer Biother Radiopharm 2019; 34:24-32. [DOI: 10.1089/cbr.2018.2524] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Manoj Kumar
- Radiopharmaceuticals Division, Bhabha Atomic Research Center, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Usha Pandey
- Radiopharmaceuticals Division, Bhabha Atomic Research Center, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Yugandhara Yadav
- Radiopharmaceuticals Division, Bhabha Atomic Research Center, Mumbai, India
| | - Shyamala S. Gandhi
- Radiopharmaceuticals Division, Bhabha Atomic Research Center, Mumbai, India
| | | | - Yogendra Kumar
- Radiopharmaceuticals Division, Bhabha Atomic Research Center, Mumbai, India
| | - Jitendra Nuwad
- Chemistry Division, Bhabha Atomic Research Center, Mumbai, India
| | - Ashutosh Dash
- Radiopharmaceuticals Division, Bhabha Atomic Research Center, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
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An electrochemical pathway to prepare circular planar 90Sr/90Y sources for the calibration of surface contamination monitors. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3272-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Udhayakumar J, Gandhi SS, Kumar M, Dash A. A chemical deposition method to prepare circular planar 147Pm sources for the measurement of particulate emission in air. Appl Radiat Isot 2013; 79:80-4. [PMID: 23733033 DOI: 10.1016/j.apradiso.2013.04.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 03/12/2013] [Accepted: 04/28/2013] [Indexed: 11/24/2022]
Abstract
This paper describes a method for preparing a circular planar source of 17 mm diameter containing approximately 400 kBq of (147)Pm employing a wet chemical deposition technique to be used in dust monitors. This manuscript described the overall process concept and experimental procedure. The technical feasibility, efficiency of the process and product quality has been evaluated. The quality of the prepared source in terms of nonleachability, uniform distribution of activity and stability, which are necessary attributes of a radioactive source were evaluated and found to be satisfactory.
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Affiliation(s)
- J Udhayakumar
- Radiopharmaceuticals Division, Bhabha Atomic Research Center, Trombay, Mumbai 400085, India
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Saxena SK, Kumar M, Kumar Y, Udhayakumar J, Pandey U, Dash A. Preparation of 57Co point sources for the performance evaluation of nuclear imaging instruments. Appl Radiat Isot 2013; 79:12-7. [PMID: 23722070 DOI: 10.1016/j.apradiso.2013.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 03/21/2013] [Accepted: 04/16/2013] [Indexed: 10/26/2022]
Abstract
This paper describes the utility of electrodeposition method to prepare (57)Co point sources. A description of the electrolytic cell, the process of (57)Co electrodeposition, encapsulation and quality control of the sealed (57)Co sources is presented. Sources containing ~3.7-4.81 MBq (0.10-0.13 mCi) of (57)Co were prepared, encapsulated in miniature titanium capsules and subjected to quality control tests to ensure compliance with regulatory requirements. The encapsulated (57)Co sources prepared by the reported procedure were found to be effective in routine performance evaluation of nuclear medicine instruments.
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Affiliation(s)
- Sanjay Kumar Saxena
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400 085, Maharashtra, India
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Gandhi SS, Kumar M, Chakravarty R, Nuwad J, Udhayakumar J, Dash A. An electrochemical route to prepare planar 204Tl sources for the calibration of beta surface contamination monitors. RADIOCHIM ACTA 2013. [DOI: 10.1524/ract.2013.2039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
This paper describes the utility of the electrochemical technique for the preparation of a circular planar 204Tl source required for the calibration of beta surface contamination monitors. The electrolytic cell, the experimental set up used and the process of deposition are described. The factors that influence the electrodeposition of 204Tl onto the circular copper substrate were investigated and a careful control has been exercised to ensure an optimum deposition of the 204Tl activity onto the substrate. The morphology of the deposited layer was examined by SEM, AFM and EDS analyses. Sources containing ∼3.7 MBq (∼0.1 mCi) 204Tl on a copper sheet of 20 mm diameter working area were prepared and housed in a holder. Quality control tests on the leachability, distribution of activity and stability of the source were performed to ensure compliance with regulatory safety requirements.
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Affiliation(s)
- Shyamala S. Gandhi
- Bhaba Atomic Research Center, Radiopharmaceutical Division, Trombay, Mumbai 400085, Indien
| | - Manoj Kumar
- Bhabha Atomic Research Centre, Radiopharmaceuticals Division, Trombay, Mumbai-400085, Indien
| | - Rubel Chakravarty
- Bhabha Atomic Research Centre, Radiopharmaceuticals Division, Trombay, Mumbai 400 085, Indien
| | - J. Nuwad
- Bhabha Atomic Research Center, Chemistry Division, Mumbai-400 085, Indien
| | - J. Udhayakumar
- Bhabha Atomic Research Centre, Radiopharmaceutical Division, Trombay, Mumbai-400 085, Indien
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