发明名称 |
MEJORAS EN CRIOSTATOS PARA DETECTAR FOTONES UTILES PARA LA MEDICION Y REGISTRO DE DATOS EN POZOS DE SONDEO |
摘要 |
<p>A borehole logging tool and cryostat therefor to maintain a semiconductor detector at cryogenic temperatures. The cryostat has an elongate single-phase heat sink of solid, thermally conductive material on which the detector is removably mounted. The other end of the heat sink is arranged to receive a liquid cryogen or the cold finger of a helium refrigerator, which is removed before a logging run; the detector being maintained at cryogenic temperatures during the logging run by absorption and retention of heat in the solid, single-phase heat sink. A rigid tube having similar thermal capacity and similarly pre-cooled to cryogenic temperatures, surrounds but is spaced from the heat sink.</p> |
申请公布号 |
MX148778(A) |
申请公布日期 |
1983.06.14 |
申请号 |
MX19800182865 |
申请日期 |
1980.06.20 |
申请人 |
SCHLUMBERGER SURENCO, S.A. |
发明人 |
ROLAND ALLESCH;JEAN TOURRET;ALAIN ZARUDIANSKY;SYLVAIN JANSSEN |
分类号 |
H01L39/00;E21B36/00;E21B47/01;F17C3/08;F25D3/10;G01T1/24;G01T7/00;G01V5/04;G01V5/12;G12B15/06;H01L23/34;H01L31/00;(IPC1-7):21B47/00;01V5/00 |
主分类号 |
H01L39/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|