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Grasso S, Varallo A, Ricciardi R, Italiano ME, Oliviero C, D'Avino V, Feoli C, Ambrosino F, Pugliese M, Clemente S. Absorbed dose evaluation of a blood irradiator with alanine, TLD-100 and ionization chamber. Appl Radiat Isot 2023; 200:110981. [PMID: 37633189 DOI: 10.1016/j.apradiso.2023.110981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 07/20/2023] [Accepted: 08/11/2023] [Indexed: 08/28/2023]
Abstract
Irradiation of blood bags using X-ray irradiators and dosimetry services are required to ensure uniform dose levels in the range 25-50 Gy to prevent Transfusion Associated Graft versus Host Disease (TA-GvHD). An absorbed dose characterization of a Raycell MK2 X-Irradiator was performed using three different dosimetric systems. Results showed a dosimetric accuracy of the ionization chamber together with the Alanine dosimeter. TLDs measurements exhibited a small overestimation by 4% of the absorbed dose. The Dose Uniformity Ratio (DUR), between maximum and minimum dose levels in the canister, was in good agreement with the manufacturer specifications (≤1.5).
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Affiliation(s)
- S Grasso
- Post Graduate School in Medical Physics, University of Naples Federico II, 80131, Naples, Italy
| | - A Varallo
- Post Graduate School in Medical Physics, University of Naples Federico II, 80131, Naples, Italy; National Institute of Nuclear Physics, 80126, Naples, Italy
| | - R Ricciardi
- Post Graduate School in Medical Physics, University of Naples Federico II, 80131, Naples, Italy; National Institute of Nuclear Physics, 80126, Naples, Italy
| | - M E Italiano
- Post Graduate School in Medical Physics, University of Naples Federico II, 80131, Naples, Italy
| | - C Oliviero
- Unit of Medical Physics and Radioprotection, A.O.U Policlinico Federico II, 80131, Naples, Italy
| | - V D'Avino
- Department of Physics "E. Pancini", University of Naples Federico II, 80126, Naples, Italy
| | - C Feoli
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80131, Naples, Italy
| | - F Ambrosino
- Department of Physics "E. Pancini", University of Naples Federico II, 80126, Naples, Italy
| | - M Pugliese
- Department of Physics "E. Pancini", University of Naples Federico II, 80126, Naples, Italy.
| | - S Clemente
- Unit of Medical Physics and Radioprotection, A.O.U Policlinico Federico II, 80131, Naples, Italy
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Nasreddine A, Kuntz F, El Bitar Z. Absorbed dose to water determination for kilo-voltage X-rays using alanine/EPR dosimetry systems. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2020.108938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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A comparative dosimetry study of an alanine dosimeter with a PTW PinPoint chamber at ultra-high dose rates of synchrotron radiation. Phys Med 2020; 71:161-167. [DOI: 10.1016/j.ejmp.2020.03.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 02/26/2020] [Accepted: 03/02/2020] [Indexed: 01/01/2023] Open
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