Machine-operated low temperature system for cooling a germanium detector at great depths of the sea
Description
The report outlines the conceptual design and technical implementation phases of a very reliable low temperature system for long-time cooling of a germanium detector at great depths of the sea. The approach chosen as the solution involves the choise of a proven commercial small-scale refrigeration unit operation by the Gifford-Mc Mahon process, which is modified so as to suit special requirements. Testing for the severe conditions of use is carried out on a jarring table for the critical components and on a rolling test rig for the whole low temperature machine so as to simulate the stresses imposed by ships and high seas. The cooling system designed in this way has demonstrated its full functioning capability in a test conducted at sea. (orig.) 891 HP
Availability note (English)
MF available from INIS under the Report Number.Abstract (German)
In dem vorliegenden Bericht wird die Konzipierung und technische Realisierung eines Tieftemperatursystems hoher Betriebssicherheit zur Langzeit-Kuehlung eines Germaniumdetektors in grossen Meerestiefen beschrieben. Der Loesungsweg fuehrt ueber die Auswahl einer bewaehrten handelsueblichen Kleinkaeltemaschine nach dem Gifford-Mc Mahon-Prozess, die fuer die besonderen Anforderungen umgeruestet wird. Die Erprobung fuer die harten Einsatzbedingungen erfolgt fuer die kritischen Bauelemente auf dem Ruetteltisch und fuer das gesamte maschinelle Tieftemperatursystem auf einem Schlingerstand, auf dem Belastungen durch Schiff und Hochsee simuliert werden koennen. Die ausgefuehrte Kuehleinrichtung hat in einem Hochseetest ihre volle Funktionsfaehigkeit nachgewiesen. (orig.)
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Additional details
Additional titles
- Original title (German)
- Maschinelles Tieftemperatursystem zur Kuehlung eines Germaniumdetektors in grossen Meerestiefen
Publishing Information
- Imprint Pagination
- 25 p.
- Report number
- KFK--2539
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 10430887
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S58: GEOSCIENCES;
- Descriptors DEI
- COOLING SYSTEMS; EXPLORATION; GE SEMICONDUCTOR DETECTORS; MECHANICAL TESTS; NEUTRON-GAMMA LOGGING; PERFORMANCE TESTING; UNDERWATER; VERY LOW TEMPERATURE
- Descriptors DEC
- LEVELS; MATERIALS TESTING; MEASURING INSTRUMENTS; NEUTRON LOGGING; RADIATION DETECTORS; RADIOACTIVITY LOGGING; SEMICONDUCTOR DETECTORS; TESTING; WELL LOGGING