Preliminary results of thermal and electrical conductivity measurement at cryogenic temperatures of riveted junctions for the thermal shield of the ATLAS Barrel Toroid.

被引：0

作者：

Alessandria, F ^{[1
]}

Ambrosio, G ^{[1
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Milano, Lab LASA, I-20090 Segrate, Milano, Italy

来源：

INTERNATIONAL CRYOGENIC ENGINEERING CONFERENCE 1998 | 1998年

关键词：

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The sections of the thermal shield of the ATLAS Barrel Toroid consist of 4 Al alloy panels joined by Al alloy rivets. The thermal conductivity of these junctions has a strong influence on the efficiency of the thermal shield. Also their electrical resistivity must be taken into account in the design because the magnetic forces due to eddy currents depend on this value. Because of these reasons an apparatus was built in order to measure the thermal and electrical conductivity of these junctions. Measurements are in course using liquid Nitrogen and liquid Helium as heat sink. The description of the apparatus, its calibration and the first results on a sample of 5754 alloy at LN temperature are reported.

引用

页码：723 / 726

页数：4