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Review of Scientific Instruments / Volume 79 / Issue 10 / NUCLEAR PHYSICS, FUSION AND PLASMAS

Rev. Sci. Instrum. 79, 103503 (2008); http://dx.doi.org/10.1063/1.2999546 (7 pages)

High precision (14 bit), high density (octal) analog to digital converter for spectroscopy applications

E. T. Subramaniam1, Mamta Jain1, R. K. Bhowmik1, and Michel Tripon2

1Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067, India
2GANIL, Caen, France

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(Received 9 June 2008; accepted 18 September 2008; published online 20 October 2008)

Nuclear and particle physics experiments with large number of detectors require signal processing and data collection strategies that call for the ability to collect large amount of data while not sacrificing the precision and accuracy of the data being collected. This paper deals with the development of a high precision pulse peak detection, analog to digital converter (ADC) module with eight independent channels in plug-in daughter card motherboard model, best suited for spectroscopy experiments. This module provides multiple channels without cross-talk and of 14 bit resolution, while maintaining high density (each daughter card has an area of just 4.2″×0.51″) and exhibiting excellent integral nonlinearity ( ≤ ±2 mV or ±0.02% full scale reading) and differential nonlinearity ( ≤ ±1%). It was designed, developed and tested, in house, and gives added advantages of cost effectiveness and ease of maintenance.

© 2008 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. BUILDING BLOCKS AND FUNCTIONAL DESCRIPTION
  3. MOTHERBOARD
    1. Front panel interface
    2. Sliding scale
    3. Gating and pileup
    4. CAMAC back plane
  4. DAUGHTER CARDS
    1. Peak detection and stretch
    2. Analog to digital converter
  5. PERFORMANCE AND SPECIFICATIONS
    1. Differential nonlinearity
    2. Integral nonlinearity
    3. Final testing
  6. CONCLUSION

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KEYWORDS and PACS

Keywords

analogue-digital conversion

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2999546

PUBLICATION DATA

ISSN

0034-6748 (print)  
1089-7623 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    E. T. Subramaniam, K. Rani, B. P. Ajith Kumar, and R. K. Bhowmik, Rev. Sci. Instrum. 77, 096102 (2006)RSINAK000077000009096102000001.


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