A positronium (Ps) beam has been constructed by transmitting monoenergetic, low energy positrons through a gas cell containing either Ar or He which provide an electron to form positronium. The positrons were obtained by magnetically deflecting positrons in the straight section of the positron beamline into a beamline which contained the gas cell and a Ps detection chamber. The two beamlines provide the capability of switching from an experiment which uses positrons (a study of the angular correlation of annihilating radiation - ACAR) to one which uses Ps atoms without breaking vacuum, nor moving equipment. The authors report the characteristics …
continued below
Publisher Info:
Brookhaven National Lab., Upton, NY (USA)
Place of Publication:
Upton, New York
Provided By
UNT Libraries Government Documents Department
Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.
Descriptive information to help identify this article.
Follow the links below to find similar items on the Digital Library.
Description
A positronium (Ps) beam has been constructed by transmitting monoenergetic, low energy positrons through a gas cell containing either Ar or He which provide an electron to form positronium. The positrons were obtained by magnetically deflecting positrons in the straight section of the positron beamline into a beamline which contained the gas cell and a Ps detection chamber. The two beamlines provide the capability of switching from an experiment which uses positrons (a study of the angular correlation of annihilating radiation - ACAR) to one which uses Ps atoms without breaking vacuum, nor moving equipment. The authors report the characteristics of the two beams and state that very preliminary information has been obtained on the characteristics of the Ps beamline and on the reflection of Ps from a LiF crystal.
This article is part of the following collection of related materials.
Office of Scientific & Technical Information Technical Reports
Reports, articles and other documents harvested from the Office of Scientific and Technical Information.
Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.
Weber, M.; Berko, S.; Brown, B. L.; Canter, K. F.; Lynn, K. G.; Mills, A. P., Jr. et al.A positronium beam and positronium reflection from LiF,
article,
1987~;
New York City, New York.
(https://digital.library.unt.edu/ark:/67531/metadc1091261/:
accessed July 16, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.
