RSI Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter UniPHY Group iResearch App Facebook

Review of Scientific Instruments / Volume 83 / Issue 2 / ARTICLES / Electronics; Electromagnetic Technology; Microwaves

Rev. Sci. Instrum. 83, 024702 (2012); http://dx.doi.org/10.1063/1.3673000 (7 pages)

Performance of a fast digital integrator in on-field magnetic measurements for particle accelerators

P. Arpaia1, L. Bottura2, L. Fiscarelli1,2, and L. Walckiers2

1Engineering Department, University of Sannio, 82100 Benevento, Italy
2European Organization for Nuclear Research (CERN), 1217 Geneva, Switzerland

View MapView Map

(Received 6 June 2011; accepted 5 December 2011; published online 2 February 2012)

The fast digital integrator has been conceived to face most demanding magnet test requirements with a resolution of 10 ppm, a signal-to-noise ratio of 105 dB at 20 kHz, a time resolution of 50 ns, an offset of 10 ppm, and on-line processing. In this paper, the on-field achievements of the fast digital integrator are assessed by a specific measurement campaign at the European Organization for Nuclear Research (CERN). At first, the architecture and the metrological specifications of the instrument are reported. Then, the recent on-field achievements of (i) ±10 ppm of uncertainty in the measurement of the main field for superconducting magnets characterization, (ii) ±0.02 % of field uncertainty in quality assessment of small-aperture permanent magnets, and (iii) ±0.15 % of drift, in an excitation current measurement of 600 s under cryogenic conditions, are presented and discussed.

© 2012 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. FAST DIGITAL INTEGRATOR
    1. Architecture
    2. Metrological specifications
  3. TESTING DYNAMIC ERRORS OF SUPERCONDUCTING MAGNETS
  4. TESTING SMALL-APERTURE MAGNETS
  5. CURRENT MEASUREMENTS AT CRYOGENIC TEMPERATURE
  6. CONCLUSIONS

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS, PACS, and IPC

Keywords

electric current measurement, magnetic field measurement, particle accelerators, superconducting magnets

PACS

  • 29.20.-c

    Accelerators

  • 84.37.+q

    Measurements in electric variables (including voltage, current, resistance, capacitance, inductance, impedance, and admittance, etc.)

  • 84.71.Ba

    Superconducting magnets; magnetic levitation devices

  • 07.55.Ge

    Magnetometers for magnetic field measurements

International Patent Classification (IPC)

  • G01R19/00

    Arrangements for measuring currents or voltages or for indicating presence or sign thereof

  • G01R33/00

    Arrangements or instruments for measuring magnetic variables

  • H01F6/00

    Superconducting magnets; Superconducting coils

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3673000

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.
    G. Sinha and G. Singh, Rev. Sci. Instrum. 79, 123302 (2008)RSINAK000079000012123302000001.

    J. Fujita, K. Matsuura, K. Kawahata, S. Fujiwaka, S. Itoh, K. N. Sato, K. Nakamura, H. Zushi, M. Sakamoto, K. Hanada, E. Jotaki, and K. Makino, Rev. Sci. Instrum. 70(1), 445 (1999)RSINAK000070000001000445000001.

    C. Schott, R. S. Popovic, S. Alberti, and M. Q. Tranb, Rev. Sci. Instrum. 70(6), 2703 (1999)RSINAK000070000006002703000001.

    J. G. Bak, S. G. Lee, D. Son, and E. M. Ga, Rev. Sci. Instrum. 78, 043504 (2007)RSINAK000078000004043504000001.

    Seong-Heon Seo, A. Werner, and M. Marquardt, Rev. Sci. Instrum. 81, 123507 (2010)RSINAK000081000012123507000001.

    D. M. Liu, B. N. Wan, Y. Wang, Y. C. Wu, B. Shen, Z. S. Ji, and J. R. Luo, Rev. Sci. Instrum. 80, 053506 (2009)RSINAK000080000005053506000001.

    S. Holt and P. Skyba, Rev. Sci. Instrum. 78, 036109 (2007)RSINAK000078000003036109000001.

    A. Godeke, D. R. Dietderich, J. M. Joseph, J. Lizarazo, S. O. Prestemon, G. Miller, and H. W. Weijers, Rev. Sci. Instrum. 81, 035107 (2010)RSINAK000081000003035107000001.


Figures (10) Tables (5)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Performance of a fast digital integrator in on-field magnetic measurements for particle accelerators
  2. Thermal-structural analysis of electron gun with control grid
  3. Active noise cancellation in a suspended interferometer
  4. Pilot-scale cooling tower to evaluate corrosion, scaling, and biofouling control strategies for cooling system makeup water
  5. Solid-state source of atomic oxygen for low-temperature oxidation processes: Application to pulsed laser deposition of TiO2:N films
Go to AIP Home
Copyright © American Institute of Physics
close