DIAS, MAURO da S.SEMMLER, RENATOKOSKINAS, MARINA F.MOREIRA, DENISE S.YAMAZAKI, IONE M.BRANCACCIO, FRANCOBARROS, LIVIA F.RIBEIRO, RAFAEL V.MORAIS, THALES S.L. de2023-08-302023-08-302023DIAS, MAURO da S.; SEMMLER, RENATO; KOSKINAS, MARINA F.; MOREIRA, DENISE S.; YAMAZAKI, IONE M.; BRANCACCIO, FRANCO; BARROS, LIVIA F.; RIBEIRO, RAFAEL V.; MORAIS, THALES S.L. de. k0‑IPEN: a new software for INAA. <b>Journal of Radioanalytical and Nuclear Chemistry</b>, v. 332, n. 8, p. 3401-3409, 2023. DOI: <a href="https://dx.doi.org/10.1007/s10967-022-08743-x">10.1007/s10967-022-08743-x</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/34186.0236-5731http://repositorio.ipen.br/handle/123456789/34186A software package for INAA (Instrumental Neutron Activation Analysis), developed at the Nuclear Metrology Laboratory of the IPEN-CNEN/SP, called k0-IPEN, is described. The package consists of a main program linked to nine subprograms designed to perform automatically most of the tasks necessary in order to obtain the mass fractions of the irradiated samples. External efficiency curves calculated by the Monte Carlo code MCNP6 can be read to extend the calibration curve to source to detector distances where only a few experimental points are available. Covariance analysis was used in all steps of the calculation. The validation of the code was tested in an intercomparison sponsored by the IAEA.3401-3409openAccessge semiconductor detectorsinterlaboratory comparisonsmonte carlo methodneutron activation analysisneutron activation analyzersneutron fluxArtigo de periódico833210.1007/s10967-022-08743-x0000-0001-8407-98330000-0001-7733-0153https://orcid.org/0000-0001-8407-9833https://orcid.org/0000-0001-7733-0153https://orcid.org/0000-0003-2478-575732.140.14