Low Temperature Facility (LTF) Instrument
Instrument Scientist:
Chris Baines <chris.baines@psi.ch>
Complete list of files pertaining to the
operation of LTF
General Specifications
- Location:
area piM3.3
- Positive muons, momentum 5-30MeV/c (Standard: 28MeV/c)
- Polarization >95%
- Direction of spin ~ 0-50deg with respect to muon momentum
- Positron Detectors: 4
- Main Magnetic Field: 0 - 2.8T (3.0T on request) parallel to the beam
- Auxiliary Field: 0-10mT perpendicular to the beam
- Temperature Range: 11.3mK -10K
Note :
Earth-field compensation is usually better than 0.001mT for all directions.
Some variation (±0.002mT) can occur depending on the position
of the 60-ton crane in the hall. Stray field from Quadrapole Focus Magnets
QSL302/QSE304 at the sample position (+9mG)
Detector Arrangement
The detector arrangement consists of a single Muon (M) Trigger detector
and four positrons detectors.
M
| Backward (left .OR. right) | Forward (left .OR. right) | Left | Right
Sample Environment
Samples: Samples must be of a size (<12.8 mm diameter but can be
up to 16.5mm long and 3.5mm thick) and need only be sufficient to stop
surface muons ~125 mg/cm².
Details of the sample-holder are available
on request or
here.
Cryostat Operation
Operational Modes (Temperature Ranges)
Temperature Measurement & Control
Electronics / Data Aquisition
Computers
Server
X-terminal
- Tektronics XP338
- DECnode: PSX058
Printing to local laser printer
- PostScript files: print/queue=ps_laser <filename.ps>
- ASCII files: pps <filename.txt>
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