Squid-based rock magnetometer with open-ended horizontal room-temperature access

H. J M ter Brake; P. de la Court; A. T M Lenferink; J. A. Ulfman; J. Flokstra

doi:10.1109/TMAG.1987.1064928

Squid-based rock magnetometer with open-ended horizontal room-temperature access

H. J M ter Brake, P. de la Court, A. T M Lenferink, J. A. Ulfman, J. Flokstra

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

We constructed a 3-channel SQUID-based rock magnetometer with an open-ended horizontal room temperature access having an inner diameter of 38 mm. A refrigerator is incorporated for cooling two radiation shields so that an operating time can be realized of about 10 weeks with a reservoir volume of 26.7 litres. The temperature variation along the access is about 9 K. The rock magnetometer is equipped with a special sensing-coil set of which the signal uniformity with respect to magnetic dipoles is about a factor of two better than that of conventional vertical-access systems. The intrinsic noise level of the system is 10-11 Am2/√Hz.

Original language	English
Pages (from-to)	1110-1113
Number of pages	4
Journal	IEEE transactions on magnetics
Volume	23
Issue number	2
DOIs	https://doi.org/10.1109/TMAG.1987.1064928
Publication status	Published - 1 Jan 1987

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title = "Squid-based rock magnetometer with open-ended horizontal room-temperature access",

abstract = "We constructed a 3-channel SQUID-based rock magnetometer with an open-ended horizontal room temperature access having an inner diameter of 38 mm. A refrigerator is incorporated for cooling two radiation shields so that an operating time can be realized of about 10 weeks with a reservoir volume of 26.7 litres. The temperature variation along the access is about 9 K. The rock magnetometer is equipped with a special sensing-coil set of which the signal uniformity with respect to magnetic dipoles is about a factor of two better than that of conventional vertical-access systems. The intrinsic noise level of the system is 10-11 Am2/√Hz.",

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AU - Ulfman, J. A.

AU - Flokstra, J.

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