SQUID-based rock magnetometer with open-ended horizontal roomtemperature access

Hermanus J.M. ter Brake, P. de la Court, Aufrid T.M. Lenferink, J.A. Ulfman, J.A. Ulfman, Jakob Flokstra

Research output: Contribution to journalArticleAcademicpeer-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 10-11Am2/sqrt{Hz}.
Original languageUndefined
Pages (from-to)1110-1113
Number of pages4
JournalIEEE transactions on magnetics
Volume1987
Issue number23
Publication statusPublished - 1987

Keywords

  • METIS-129127
  • IR-24327

Cite this

@article{5d85d62fd9334f77b5e63dbf118baf76,
title = "SQUID-based rock magnetometer with open-ended horizontal roomtemperature 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 10-11Am2/sqrt{Hz}.",
keywords = "METIS-129127, IR-24327",
author = "{ter Brake}, {Hermanus J.M.} and {de la Court}, P. and Lenferink, {Aufrid T.M.} and J.A. Ulfman and J.A. Ulfman and Jakob Flokstra",
year = "1987",
language = "Undefined",
volume = "1987",
pages = "1110--1113",
journal = "IEEE transactions on magnetics",
issn = "0018-9464",
publisher = "IEEE",
number = "23",

}

SQUID-based rock magnetometer with open-ended horizontal roomtemperature access. / ter Brake, Hermanus J.M.; de la Court, P.; Lenferink, Aufrid T.M.; Ulfman, J.A.; Ulfman, J.A.; Flokstra, Jakob.

In: IEEE transactions on magnetics, Vol. 1987, No. 23, 1987, p. 1110-1113.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - SQUID-based rock magnetometer with open-ended horizontal roomtemperature access

AU - ter Brake, Hermanus J.M.

AU - de la Court, P.

AU - Lenferink, Aufrid T.M.

AU - Ulfman, J.A.

AU - Ulfman, J.A.

AU - Flokstra, Jakob

PY - 1987

Y1 - 1987

N2 - 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 10-11Am2/sqrt{Hz}.

AB - 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 10-11Am2/sqrt{Hz}.

KW - METIS-129127

KW - IR-24327

M3 - Article

VL - 1987

SP - 1110

EP - 1113

JO - IEEE transactions on magnetics

JF - IEEE transactions on magnetics

SN - 0018-9464

IS - 23

ER -