Evaluation of the influence of the TH-GEM detector components in dosimetric measurements of standard mammography beams
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2017
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
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GEM detectors have found applications in many areas due to their simplicity of construction, low cost,
ruggedness and diversity of shape. A dosimeter with these qualities presents utility in several applications, as for
example in diagnostic and therapeutic medicine, industrial radiography and nuclear meters. Furthermore, the
high sensitivity provided by GEM detectors may extend their applications in low dose dosimetry. Based on these
facts, it may be interesting to produce a prototype of a portable TH-GEM type detector with characteristics
suitable for dosimetric use in X-rays with low and medium energies. The precise determination of the dosimeter
characteristics is very important for laboratories of instrument calibration, as well as to determine how the
various components of the detector may influence on the energy deposited in the sensitive volume. In this work,
the results obtained about the influence of each one of the components present in this type of detector in
standard mammography beams is presented. The code MCNP5 was used. The results allowed the adaptation of
the detector to the desired conditions.
Como referenciar
SILVA, NATALIA F.; SILVA, TIAGO F.; CASTRO, MAYSA C.; CINTRA, FELIPE B.; LUZ, HUGO N. da; CALDAS, LINDA V.E. Evaluation of the influence of the TH-GEM detector components in dosimetric measurements of standard mammography beams. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 22-27, 2017, Belo Horizonte, MG. Proceedings... Rio de Janeiro, RJ: Associação Brasileira de Energia Nuclear, 2017. Disponível em: http://repositorio.ipen.br/handle/123456789/28231. Acesso em: 19 Feb 2025.
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