Optimization of the first order gradiometer for small sample magnetization measurements using pulse integrating magnetometer

In the paper we present an analytical calculation method for determination of the sensitivity of a pulse field magnetometer working with a first order gradiometer. Our considerations here are especially focused on a case of magnetic moment measurements of very small samples. Derived in the work anal...

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Bibliographic Details
Published in:Review of scientific instruments 2009-10, Vol.80 (10), p.104702-104702-7
Main Authors: Trojanowski, S., Ciszek, M.
Format: Article
Language:English
Subjects:
ANALYTIC FUNCTIONS
CALCULATION METHODS
CALIBRATION
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
MAGNETIC MOMENTS
MAGNETIZATION
MAGNETOMETERS
MATERIALS SCIENCE
OPTIMIZATION
PULSES
SENSITIVITY
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Summary:In the paper we present an analytical calculation method for determination of the sensitivity of a pulse field magnetometer working with a first order gradiometer. Our considerations here are especially focused on a case of magnetic moment measurements of very small samples. Derived in the work analytical equations allow for a quick estimation of the magnetometer’s sensitivity and give also the way to its calibration using the sample simulation coil method. On the base of the given in the paper calculations we designed and constructed a simple homemade magnetometer and performed its sensitivity calibration.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.3239404