Properties of the WASA pellet target and a stored intermediate-energy beam
Experimental data from the pd → He 3 η reaction close to threshold have been used to investigate time-dependent properties of the WASA pellet target and the stored beam of 892.8 MeV protons in the CELSIUS accelerator. The detection of 3He ions in solid-state detectors provides an excellent almost ba...
Saved in:
Published in: | Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 587; no. 2; pp. 178 - 187 |
---|---|
Main Authors: | , , , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Elsevier B.V
21-03-2008
|
Subjects: | |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Experimental data from the
pd
→
He
3
η
reaction close to threshold have been used to investigate time-dependent properties of the WASA pellet target and the stored beam of 892.8
MeV protons in the CELSIUS accelerator. The detection of
3He ions in solid-state detectors provides an excellent almost background free trigger for
η
production. Pellet interactions with the surrounding material and with the beam lead to evaporation of deuterium gas into the beam pipe. Approximately 30% of the registered
η
decay events are due to interactions in deuterium gas outside the pellets. Due to beam–target interaction the beam is transversely heated and appears to acquire a component of a slightly lower energy. |
---|---|
ISSN: | 0168-9002 1872-9576 1872-9576 |
DOI: | 10.1016/j.nima.2007.12.040 |