Low-cost amplifier for alpha detection with photodiode
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2017
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
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Resumo
A low-cost amplifier for Hamamatsu S3590-09 PIN photodiode to be used in alfa detection is presented. This
amplifier consists basically of two circuits: a pulse preamplifier and a shaper-driver. The PIN photodiode is
reverse-biased and connected to a charge preamplifier input. Incident alpha particles generate a small current
pulse in the photodiode. The integrating circuit of the low noise preamplifier transforms current pulse into a
voltage pulse with amplitude proportional to the charge carried by the current pulse. The shaper-driver consists
of a differentiator and an integrator and is responsible for filtering and further amplifying the preamplifier
signal, generating a NIM-compatible energy pulse. The performance of the set photodiode-amplifier was
successively tested through the use of a 243Am radioactive source. The low-cost photodiode amplifier was
designed and constructed at IPEN - CNEN/SP using national components and expertise.
Como referenciar
DOMIENIKAN, CLAUDIO; COSTA, PRISCILA; GENEZINI, FREDERICO A.; ZAHN, GUILHERME S. Low-cost amplifier for alpha detection with photodiode. 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/123456789/28270. Acesso em: 19 Feb 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.