Large Hadron Collider Proton Count · CAP 2012 #6

Physics · modern-physics

Problem

At the designed intensity, the two beams circulating in the Large Hadron Collider (LHC) at CERN consist of 5616 bunches (2808 in each direction) of approximately 1.15×10111.15 \times 10^{11} protons per bunch. A small commercial hydrogen cylinder contains 40 L of gas at a pressure of 10 MPa and a temperature of 25°C. Assuming an injection efficiency of 70%, how many times could the LHC be filled at the designed intensity using a single, perfectly hermetic cylinder? a) 1.1×10111.1 \times 10^{11} b) 1.5×10111.5 \times 10^{11} c) 2.1×10112.1 \times 10^{11} d) 1.1×10141.1 \times 10^{14} e) 1.5×10141.5 \times 10^{14}

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