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Inerting chambers and purging gas lines are important standard safety procedures to take when transferring hydrogen. In order to properly inert or purge, the flammability limits must be taken into account, and hydrogen's are very different from other kinds of gases.
Fermilab's disused 15-foot (4.57 m) bubble chamber The first tracks observed in John Wood's 1.5-inch (3.8 cm) liquid hydrogen bubble chamber, in 1954.. A bubble chamber is a vessel filled with a superheated transparent liquid (most often liquid hydrogen) used to detect electrically charged particles moving through it.
Because an inert purge gas is used, the purge procedure may (erroneously) be referred to as inerting in everyday language. This confusion may lead to dangerous situations. Carbon dioxide is a safe inert gas for purging. Carbon dioxide is an unsafe inert gas for inerting, as it may ignite the vapors and result in an explosion. [2]
The 81 cm Saclay Bubble Chamber was a liquid hydrogen bubble chamber built at Saclay, in collaboration with the École Polytechnique (Orsay), to study particle physics. [1] The team led by Bernard Gregory completed the construction of the chamber in 1960 and later it was moved to CERN and installed at the Proton Synchrotron (PS). [2] [3]
An inerting system decreases the probability of combustion of flammable materials stored in a confined space. The most common such system is a fuel tank containing a combustible liquid, such as gasoline , diesel fuel , aviation fuel , jet fuel , or rocket propellant .
When separate components need to be welded in an inert atmosphere, they can be placed inside a Weld Purging Chamber that is flushed out completely with inert gas. Welding chambers are mostly built to order, however standard low cost Flexible Welding Enclosures are available, that enable individual or multiples of individual components to be ...
The bubble chamber was filled with 1150 litres of liquid hydrogen and was expanded by a piston placed at the top. The chamber had vertical windows, a magnet made up of copper coils which generated a field of 1.7 T and the whole apparatus weighted more than 700 tons. [2]
Installation of the Gargamelle chamber body. Placement of the chamber in the oblong shaped magnet coils. The domain of neutrino physics was in rapid expansion in the 60's. . Neutrino experiments using bubble chambers were already running at the first synchrotron at CERN, the PS, and the question of the next generation of bubble chambers had been on the agenda for some ti
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