LHCf

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Coordinates: 46 ° 14 '8.7 "  N , 6 ° 3' 18.3"  E ; CH1903:  493278  /  121422

Large Hadron Collider (LHC) Arrangement of the various accelerators and detectors of the LHC
Arrangement of the various accelerators and detectors of the LHC
Detectors
 Partly built up:
Pre-accelerator

The LHCf experiment (for Large Hadron Collider forward ) is one of seven experiments at the Large Hadron Collider at CERN .

The LHCf experiment is the smallest of the experiments housed at the LHC, it consists of two detectors measuring around 30 cm × 80 cm × 10 cm and weighing around 40 kg and is supervised by 22 scientists.

motivation

The LHCf experiment is used to gain experience in the calibration of particle detectors. This applies in particular to models for the Monte Carlo simulation of detectors for the investigation of cosmic radiation , such as those used at the Pierre Auger Observatory for highest energies beyond the GZK cutoff .

Experimental setup

The LHCf experiment consists of two calorimeters made of tungsten plates and plastic scintillators , which can be inserted 140 m away from the ATLAS detector between the two beam pipes of the LHC. This point is exactly in the forward direction behind the beam crossing point, where the highest particle energies are to be expected.

The scintillator materials of the LHCf detectors are not designed for high radiation resistance. Therefore, for the operation of LHCf, the beams are shifted a little relative to each other in order to obtain a lower collision rate. This is usually done when the accelerator cannot yet deliver the high collision rate expected by the ATLAS detector.

Web links

Individual evidence

  1. ↑ CERN : LHCf Large Hadron Collider forward. June 3, 2009, accessed March 20, 2010 .
  2. ^ LHCf: a tiny new experiment joins the LHC. CernCourier, November 1, 2006, accessed March 20, 2010 .
  3. ^ LHCf collaboration: Technical Proposal for the CERN LHCf Experiment. (PDF; 2.1 MB) CERN , October 12, 2005, accessed on March 20, 2010 (English).
  4. ^ Oscar Adriani: The LHCf experiment at LHC. (PDF; 1.9 MB) September 9, 2005, accessed on March 20, 2010 (English).