Details

Autor(en) / Beteiligte

• Gomes Tarelho, Luiz Vicente
• de Andrade Garcia, Guilherme
• Baratto, Antonio Carlos
• Saboia Lima de Souza, Rodolfo
• De Martin, Jair
• Muller, Stella Torres
• Magalhaes, Daniel Varela
• Bebeachibuli, Aida
• Bagnato, Vanderlei Salvador
• Rovera, Giovanni Daniele

Titel

Joint effort to commissioning a thermal cesium beam with optical pumping as primary frequency standard to Brazilian NMI

Ist Teil von

• 29th Conference on Precision Electromagnetic Measurements (CPEM 2014), 2014, p.598-599

Ort / Verlag

IEEE

Erscheinungsjahr

2014

Quelle

IEEE Xplore

Beschreibungen/Notizen

• This paper describes the progress on commissioning a thermal Cesium beam frequency standard developed at IFSC-USP and transferred to the Brazilian NMI in order to be continuously operated as a primary frequency standard. The system is composed of a short Ramsey cavity for electromagnetic excitation and an optical pumping for atom detection and energy-state selection. The uncertainty budget for the measurement technique is under verification to acquire the same performance achieved earlier during the scientific development of the standard. Some aspects of the standard implantation are discussed here according to the technical and metrological requirements for the system.