0000000000292073
AUTHOR
H. Jäger
Positrons and Electrons Emitted in Elastic and Dissipative Heavy Ion Collisions
The main research line of the Tori group is the study of the reaction dynamics of dissipative collisions between heavy ions ia positron and electron spectroscopy. The last five years since the Lahnstein-Conference1 are marked for our group by the installation of a new experimental device for detecting positrons and electrons emitted in these collisions, the so-called Tori spectrometer2. The first part of this report is devoted therefore to describe the main characteristics of this apparatus.
Zur Problematik der exokrinen Pankreasreaktion nach intraven�ser Tolbutamid-Belastung bei Stoffwechselgesunden und Diabetikern
Die Untersuchung der exkretorischen Pankreasfunktion wahrend des Tolbutamidtestes bei 30 Stoffwechselgesunden und 13 Diabetikern lies fur die Maszahlen der absoluten Diastasewerte signifikante Unterschiede (P ≦ 0,27%) zwischen beigesteigerte exkretorische Pankrasleistung nach Tolbutamid bei Gesunden gegenuber Diabetikern hin.
Positron-Electron Angular Correlations in Heavy Ion Collisions
Recent measurements of positrons in coincidence with electrons emitted in U+Th collisions near the Coulomb barrier show sharp line structures in the sum and difference energy spectra of the two leptons (ref. 1). A possible method to clarify the origin of these lines is to study the angular correlation of the leptons. In this short contribution we want to report on a positron-electron coincidence test measurement performed with the TORI spectrometer. This apparatus offers the possibility to measure positrons in coincidence with electrons emitted into the same and opposite hemisphere as well.