Bruker 700'54 Ascend - Filling Volume, Evaporation Rate and Hold Time; Table 9.13: Cryogenic Agents Consumption During Installation; Table 9.14: Cryogenic Agents

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ZTKS0164 / Z31949 / 06
Technical Data MS 700‘54 Ascend
_ _ _ʹ_ _ _ʹ_ _ _ _
9.10 Filling Volume, Evaporation Rate and Hold Time
Cryogenic Consumption during Installation
The consumption of liquid cryogenic agents during installation consists of consumption
for cooling down the cryostat, for energizing, cryo shimming and quench reserve.
1
Maximum time interval between two fillings
Cryogenic Agents Consumption Value Unit
Nitrogen 750 l
Helium (needed for cool down) 500 l
Helium (needed for energizing, cryo shimming and quench
reserve)
500 l
Table 9.13: Cryogenic agents consumption during installation
Cryogenic Agents Value Unit
Nitrogen vessel total volume 241 l
Nitrogen refill volume 193 l
Nitrogen evaporation rate 287 ml/h
Nitrogen hold time
1
28 days
Helium vessel total volume 132 l
Helium refill volume 94 l
Helium evaporation rate 26 ml/h
Helium hold time
1
150 days
Helium refill volume after quench
(cool down and refill)
250 l
Table 9.14: Cryogenic agents
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