Ion beam measurement with a HTS SQUID current comparator

Author

Hao, L. ; Macfarlane, J.C. ; Gallop, J.C.

Author_Institution

Nat. Phys. Lab., Teddington, UK

fYear

2000

fDate

14-19 May 2000

Firstpage

480

Lastpage

481

Abstract

Superconducting direct current comparators are well established with low temperature superconductors and SQUIDs. We have begun investigations into HTS current comparator designs, with a readout SQUID also made from HTS. This work aims to produce a system capable of high accuracy noninvasive measurement of an ion beam current (in the range 1 /spl mu/A to 1 mA). Measurements of the current ratio accuracy are reported and preliminary experimental results on the measurement of ion beams are described.

Keywords

SQUIDs; current comparators; electric current measurement; high-temperature superconductors; ion beams; particle beam diagnostics; 1 muA to 1 mA; HTSC SQUID current comparator; current ratio accuracy; cylindrical geometry; gradiometer loops; high accuracy noninvasive measurement; ion beam current; ion beam measurement; readout SQUID; superconducting direct current comparators; Current measurement; Detectors; High temperature superconductors; Ion beams; SQUIDs; Superconducting filaments and wires; Superconducting films; Superconducting materials; Superconductivity; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements Digest, 2000 Conference on

Conference_Location

Sydney, NSW, Australia

Print_ISBN

0-7803-5744-2

Type

conf

DOI

10.1109/CPEM.2000.851092

Filename

851092