Accession Number : AD0637480

Title :   BETA SPECTRUM OF NEUTRON DECAY IN COINCIDENCE WITH RECOIL PROTONS.

Descriptive Note : Annual scientific summary rept. no. 1, 1 Feb 65-31 Jan 66.

Corporate Author : OESTERREICHISCHE STUDIENGESELLSCHAFT FUER ATOMENERGIE G M B H SEIBERSDORF PHYSICS INST

Personal Author(s) : Weinzierl,P.

Report Date : 31 JAN 1966

Pagination or Media Count : 43

Abstract : It is shown that a precise measurement of the angular correlation coefficient 'a' yields theoretically important information about weak interactions. Different experimental approaches for the determination of this quantity were studied. The comparison between coincidence measurements and a determination and evaluation of the shape of the proton recoil spectrum led to the decision to choose the latter method. Detailed calculations were carried out on the precision to be expected from different types of proton spectrometers. Finally the following arrangement is chosen and its design discussed: A high vacuum tangential beam tube, accessible at both ends, is well suited as decay proton source for a precisely controlled spectrometry. It is planned to use a spherical condenser spectrometer and a specially developed low background detector for the postaccelerated protons. The beam hole at the opposite side of the reactor will be used for insertion of a test source for simulating decay protons to check the ion optical properties, transmission etc. between and during the spectrum measurements. (Author)

Descriptors :   (*RADIOACTIVE DECAY, *BETA RAY SPECTRUM), (*NEUTRON REACTIONS, BETA RAY SPECTRUM), PROTONS, COINCIDENCE COUNTING, NUCLEAR RADIATION SPECTROSCOPY, AUSTRIA

Subject Categories : Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE