the PSI protium gas filling system

1
the PSI protium gas filling system (status
report by Claude Petitjean to the Gatchina
collaboration meeting June 14-17) Main
components of the PSI gas system - Alu vessel
with TPC, heating jacket used up to 120 C - high
vacuum pumping system (dry forevacuum turbo
pump) - main pumping tube with penning gauge and
10 bar valve to UHV recipient - UHV recipient
contains - ionisation gauge (10-3 to 10-9
mbar), pirani gauge (lt10-3 mbar) - mass
spectrometer (very useful for gas analysis and
leak searches) - valves connecting to gas
handling system - gas handling system contains
- three 10-liter high pressure stainless steel
bottles - two hydride beds for protium
storage (capacity 550 750 stp liter) -
Palladium filter for producing ultra clean
protium gas (1 spare) - Whatman protium
generator (from Canadian lt1ppm depleted water)
- three digital pressure transducers - 2µ
gas filter to avoid dust entering the vessel
during filling - Zeolite pressurizer
(capacity 100 stp liter, used by Gatchina crew
only)
2
Overview of TPC and gas handling in the lab
3
The MuCap protium gas handling system at PSI
VACUUM
MASS SPEC
ALU PRESSURE VESSEL
1 bar
10 bar
10 bar 40 l
PENNING
µ beam
T P C
TURBO
UH VAC
FILTER
PIRANI
ION GAUGE
2 µ
SAFETY
FILLING LINE
12 bar
0-100 bar
0-50 bar
0-25 bar
VACUUM LINE
SAMPLE VOLUME
N2
550 stp liter
750 stp liter
100 stp liter
10 l
10 l
H2O
IN
IN
OUT
OUT
BLEED
OUT
IN
FORE VACUUM
PD FILTER
WHATMAN PROTIUM GENERATOR
HYDRIDE BEDS
ZEOLITE BED
CPCP
4
lab-photo of the PSI gas handling (status
June-10-04)
5
closeup view of the PSI gas handling
system (status June-10-2004)