Assessment of differences between X and gamma rays in order to validate a new generation of irradiators for insect sterilization Mastrangelo, Thiago; Walder, Julio M.M., E-mail: piaui@cena.usp.b [Centro de Energia Nuclear na Agricultura (CENA), Piracicaba, SP (Brazil)]; Parker, Andrew G; Jessup, Andrew; Orozco-Davila, Dina; Islam, Amirul; Dammalage, Thilakasiri [Joint FAO/IAEA-UN A-2444, Seibersdorf (Austria). Insect Pest Control Subprogramme]; Pereira, Rui [Joint FAO/IAEA-UN, Vienna (Austria). Insect Pest Control Subprogramme] 60 APPLIED LIFE SCIENCES; ANASTREPHA; CERATITIS CAPITATA; COBALT 60; EXPERIMENTAL DATA; GAMMA RADIATION; PEST CONTROL; PUPAE; QUALITY CONTROL; RADIATION DOSES; RBE; STERILE MALE TECHNIQUE; STERILITY; STERILIZATION; X RADIATION; ANIMALS; ARTHROPODS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; COBALT ISOTOPES; CONTROL; DATA; DIPTERA; DOSES; ELECTROMAGNETIC RADIATION; FLIES; FRUIT FLIES; INFORMATION; INSECTS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; INVERTEBRATES; IONIZING RADIATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEI; NUMERICAL DATA; ODD-ODD NUCLEI; RADIATIONS; RADIOISOTOPES; YEARS LIVING RADIOISOTOPES ANIMALS; ARTHROPODS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; COBALT ISOTOPES; CONTROL; DATA; DIPTERA; DOSES; ELECTROMAGNETIC RADIATION; FLIES; FRUIT FLIES; INFORMATION; INSECTS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; INVERTEBRATES; IONIZING RADIATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEI; NUMERICAL DATA; ODD-ODD NUCLEI; RADIATIONS; RADIOISOTOPES; YEARS LIVING RADIOISOTOPES Recent fears of terrorism provoked an increase in delays and denials of transboundary shipments of radioisotopes. This represents a serious constraint to sterile insect technique (SIT) programs around the world as they rely on the use of ionizing energy from radioisotopes for insect sterilization. In order to validate a novel Xray irradiator, a series of studies on Ceratitis capitata (Wiedemann) and Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) were carried out, comparing the relative biological effectiveness (RBE) between X-rays and traditional gamma radiation from {sup 60}Co. Male C. capitata pupae and pupae of both sexes of A. fraterculus, both 24 to 48 h before adult emergence, were irradiated with doses ranging from 15 to 120 Gy and 10 to 70 Gy respectively. Estimated mean doses of 91.2 Gy of X and 124.9 Gy of gamma radiation induced 99% sterility in C. capitata males. Irradiated A. fraterculus were 99% sterile at about 40-60 Gy for both radiation treatments. Standard quality control parameters were not significantly affected by the two types of radiation. There were no significant differences between X and gamma radiation regarding mating indices. The RBE did not differ significantly between the tested X and gamma radiation, and X-rays are as biologically effective for SIT purposes as gamma rays are. This work confirms the suitability of this new generation of X-ray irradiators for pest control programs in UN Member States. (author) Associacao Brasileira de Energia Nuclear, Rio de Janeiro, RJ (Brazil) Available from INIS in electronic form;INIS Brazil 2009-07-01 English Conference Conference: INAC 2009: International nuclear atlantic conference. Innovations in nuclear technology for a sustainable future;16. Brazilian national meeting on reactor physics and thermal hydraulics;9. Brazilian national meeting on nuclear applications;1. Meeting on nuclear industry, Rio de Janeiro, RJ (Brazil);Rio de Janeiro, RJ (Brazil);Rio de Janeiro, RJ (Brazil);Rio de Janeiro, RJ (Brazil), 27 Sep - 2 Oct 2009;27 Sep - 2 Oct 2009;27 Sep - 2 Oct 2009;27 Sep - 2 Oct 2009; Other Information: Published only in CD-Rom. Code: e09_366_fullpaper.pdf Medium: X; Size: [16 p.] pages https://doi.org/ [] INIS-BR-7258 TRN: BR1049332113383 BRN 2012-12-21 21385249