Accession Number:

AD0266783

Title:

DEVELOPMENT OF METHODS FOR THE MEASUREMENT OF TEMPERATURES UP TO 105 DEG. K

Descriptive Note:

Corporate Author:

KIEL UNIV (WEST GERMANY)

Report Date:

1961-06-30

Pagination or Media Count:

1.0

Abstract:

Three experiments were followed to obtain plasmas of 100,000 K. The first experiment attempted to pulse a confined electric arc with high current but did not lead to the desired high temperatures as the confinement breaks down. The second tried to use magnetic compression by an outer magnetic field magnetic pinch to compress and to heat the plasma simultaneously. Compression of the plasma of an arc burning at atmospheric pressure was not possible. A low pressure discharge was not sufficiently preionized. The use of a second condenser bank for preionization resulted in contraction and heating. The obtained temperatures were about 40,000 K. The third experiment was the linear pinch. Discharge in helium proved the existence of two outer zones of different temperatures. In the center of the discharge tube temperatures higher than 80,000 K were obtained. The pressure was about 15 atm and the radiation corresponded to thermal excitation. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE