Liquid Nitrogen: Difference between revisions
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[[File:LiquidNitrogenLabeled.png|600px|thumb|The liquid nitrogen fill system.]] | [[File:LiquidNitrogenLabeled.png|600px|thumb|The liquid nitrogen fill system.]] | ||
Gammasphere's [[Gammasphere Detectors|detectors]] use [[High Purity Germanium (HPGe)|germanium]] that needs to be kept at a specified temperature to stay intact. For this reason, Gammasphere uses liquid nitrogen within each detector to maintain the thermal requirement. Each detector has a nitrogen tank that | Gammasphere's [[Gammasphere Detectors|detectors]] use [[High Purity Germanium (HPGe)|germanium]] that needs to be kept at a specified temperature to stay intact. For this reason, Gammasphere uses liquid nitrogen within each detector to maintain the thermal requirement. Each detector has a nitrogen tank that has to be filled with nitrogen, a process that is completed through something called an [[LN system]], where a large tank gives gaseous nitrogen and given to “solenoids” that provide a valve to control the flow of nitrogen to each detector as liquid nitrogen. The system is controlled through the VME computer, and the fill process for Gammasphere detectors is done at least twice daily. If a detector leaks or loses the necessary temperature level at any point, an alarm sets off. | ||
Revision as of 20:51, February 16, 2023
Gammasphere's detectors use germanium that needs to be kept at a specified temperature to stay intact. For this reason, Gammasphere uses liquid nitrogen within each detector to maintain the thermal requirement. Each detector has a nitrogen tank that has to be filled with nitrogen, a process that is completed through something called an LN system, where a large tank gives gaseous nitrogen and given to “solenoids” that provide a valve to control the flow of nitrogen to each detector as liquid nitrogen. The system is controlled through the VME computer, and the fill process for Gammasphere detectors is done at least twice daily. If a detector leaks or loses the necessary temperature level at any point, an alarm sets off.