We present a Bias Generator System designed for Large Mass Bolometric Detectors. The bias current, 100 pA 200 pA range, for these detectors is provided by large value resistors, that can be located at cold or at room temperature. To improve the precision and the stability of the bias current we developed a system based on a custom resistive network to take advantage of the good tolerance ratio and TCR (Temperature Coefficient of Resistance) of these devices. This custom network design exploits a geometry optimized to obtain a small 1/f noise. The presented system is also programmable thanks to the adoption of a digital potentiometer. The final feature is the availability of a double selectable range useful to produce the large bias current typically needed during the DC detector characterization phase. The system and the results from its characterizations, noise properties, precision, programmability, thermal and humidity sensitivity will be shown in details. © 2010 IEEE.

Arnaboldi, C., Giachero, A., Gotti, C., Liu, X., & Pessina, G. (2010). The Bias Generator System for the CUORE Large Mass Bolometer Detectors. In IEEE Nuclear Science Symposium Conference Record (pp.1368-1370). IEEE [10.1109/NSSMIC.2010.5873994].

The Bias Generator System for the CUORE Large Mass Bolometer Detectors

ARNABOLDI, CLAUDIO
;
GIACHERO, ANDREA
Secondo
;
GOTTI, CLAUDIO;PESSINA, GIANLUIGI EZIO
Ultimo
2010

Abstract

We present a Bias Generator System designed for Large Mass Bolometric Detectors. The bias current, 100 pA 200 pA range, for these detectors is provided by large value resistors, that can be located at cold or at room temperature. To improve the precision and the stability of the bias current we developed a system based on a custom resistive network to take advantage of the good tolerance ratio and TCR (Temperature Coefficient of Resistance) of these devices. This custom network design exploits a geometry optimized to obtain a small 1/f noise. The presented system is also programmable thanks to the adoption of a digital potentiometer. The final feature is the availability of a double selectable range useful to produce the large bias current typically needed during the DC detector characterization phase. The system and the results from its characterizations, noise properties, precision, programmability, thermal and humidity sensitivity will be shown in details. © 2010 IEEE.
Si
paper
Scientifica
Radiation; Nuclear and High Energy Physics; Radiology, Nuclear Medicine and Imaging
English
IEEE NSS/MIC Nuclear Science Symposium and Medical Imaging Conference and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD - Oct 30 - Nov 6
978-142449106-3
Arnaboldi, C., Giachero, A., Gotti, C., Liu, X., & Pessina, G. (2010). The Bias Generator System for the CUORE Large Mass Bolometer Detectors. In IEEE Nuclear Science Symposium Conference Record (pp.1368-1370). IEEE [10.1109/NSSMIC.2010.5873994].
Arnaboldi, C; Giachero, A; Gotti, C; Liu, X; Pessina, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/65006
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