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Title: Cavallo's multiplier for in situ generation of high voltage

Journal Article · · Journal of Instrumentation
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2];  [3];  [4];  [4];  [5]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); California Inst. of Technology (CalTech), Pasadena, CA (United States)
  4. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  5. Brown Univ., Providence, RI (United States)
+ Show Author Affiliations

A classic electrostatic induction machine, Cavallo's multiplier, is suggested for in situ production of very high voltage in cryogenic environments. The device is suitable for generating a large electrostatic field under conditions of very small load current. Operation of the Cavallo multiplier is analyzed, with quantitative description in terms of mutual capacitances between electrodes in the system. A demonstration apparatus was constructed, and measured voltages are compared to predictions based on measured capacitances in the system. The simplicity of the Cavallo multiplier makes it amenable to electrostatic analysis using finite element software, and electrode shapes can be optimized to take advantage of a high dielectric strength medium such as liquid helium. A design study is presented for a Cavallo multiplier in a large-scale, cryogenic experiment to measure the neutron electric dipole moment.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC52-06NA25396; AC05-00OR22725; 89233218CNA000001
OSTI ID:
1480027
Alternate ID(s):
OSTI ID: 1480606; OSTI ID: 1492662
Report Number(s):
LA-UR-18-22384; LA-UR-17-29422
Journal Information:
Journal of Instrumentation, Vol. 13, Issue 05; ISSN 1748-0221
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

References (13)

Pelletron accelerators for very high voltage journal November 1974
A micro-aperture electrostatic field mill based on MEMS technology journal May 2001
Neutron electric-dipole moment, ultracold neutrons and polarized 3He journal February 1994
Plans for a Neutron EDM Experiment at SNS journal May 2007
An apparatus for studying electrical breakdown in liquid helium at 0.4 K and testing electrode materials for the neutron electric dipole moment experiment at the Spallation Neutron Source journal April 2016
Quantum Turbulence: Achievements and Challenges journal October 2010
Stability of Laminar and Turbulent Flow of Superfluid 4 He at mK Temperatures around an Oscillating Microsphere journal June 2004
Vortex Instability and the Onset of Superfluid Turbulence journal March 2004
The Time Projection Chamber journal October 1978
Future liquid Argon detectors journal February 2013
The XENON100 dark matter experiment journal April 2012
High voltage in noble liquids for high energy physics journal August 2014
First test of a high voltage feedthrough for liquid Argon TPCs connected to a 300 kV power supply journal March 2017

Figures / Tables (8)

Figure 1(p. 4)figure Figure 1
Figure 2(p. 8)figure Figure 2
Figure 3(p. 9)figure Figure 3
Figure 4(p. 9)figure Figure 4
Figure 5(p. 10)figure Figure 5
Figure 6(p. 11)figure Figure 6
Figure 7(p. 12)figure Figure 7
Figure 8(p. 14)figure Figure 8

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