Published January 14, 2016 | Version v1
Journal article

Positron extraction to an electromagnetic field free region

  • 1. ETH Zurich, Institute for Particle Physics, Otto-Stern-Weg 5, CH 8093, Zurich (Switzerland)
  • 2. Physics Department, Marquette University, 1250 W. Wisconsin Avenue, Milwaukee, WI 53233 (United States)

Description

We describe a scheme for high efficiency ( 90 %) extraction of 50 ns positron bunches from a buffer gas trap in an electromagnetic field free region. The positrons are time bunched to approximately 1 ns (FWHM) and focussed to less than 1 mm (σ). The target is kept at ground potential which is an advantage for many applications. The results compare well with SIMION simulations. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/0953-4075/49/1/014001

Additional details

Publishing Information

Journal Title
Journal of Physics. B, Atomic, Molecular and Optical Physics
Journal Volume
49
Journal Issue
1
Journal Page Range
[4 p.]
ISSN
0953-4075
CODEN
JPAPEH

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
51042864
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Descriptors DEI
ELECTROMAGNETIC FIELDS; POSITRONS; POTENTIALS; SIMULATION; TRAPS
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; ELEMENTARY PARTICLES; FERMIONS; LEPTONS; MATTER