LEGO^® model of the Compact Muon Solenoid (CMS)

A detailed explanation of the CMS model (and comparisons of the model to the actual CMS detector) may be found in this .pdf document .

Project details:

Model is built to 1:48 scale (the rough scale of the LEGO^® minifigures, and the same scale as the ATLAS LEGO^® model.)
Total pieces used: ~14,000
Models dimensions are ~ 60 cm x 30 cm x 30 cm

This is just over half the size of the ATLAS model, even though the CMS model uses more LEGO^®pieces.
This feature mirrors the construction of the real ATLAS and CMS detectors. In real life, ATLAS is 46 m long, 25 m high, and 25 m wide, but weighs "only" 7000 tons. CMS is 21 m long, 15 m high, and 15 m wide, but weighs 12,500 tons. (Sources: ATLAS and CMS public pages)

Total cost: $2300.00
Model currently on display in the University of Maryland physics building

CERN public page	The central (barrel) region of CMS, surrounded by muon rings	CMS public page
Half of the CMS Silicon Strip Tracker	The Silicon Strip Tracker barrel components	The Silicon Strip Tracker barrel and endcaps
The electromagnetic calorimeter (ECAL)	The ECAL with tracker installed	ECAL + tracker with human model for scale
"Down the beam line" view of the tracker barrel within the Ecal	The central portion of CMS, including the tracker, ECAL, Hadron Calorimeter (HCAL) barrel (yellow) and solenoid (grey)	The solenoid resting on muon ring 0, along with one calorimeter/muon endcap
Assembly of ECAL, Solenoid, and 2 muon rings	A partially completed muon endcap	The (unwrapped) muon rings surrounding the central solenoid
Left: one endcap (calorimeters + muon detectors) of CMS. Right: central CMS detectors	Forward calorimeter (HF) support and back of muon endcap	Completed model (with one endcap separated from central detector)

Comparison of LEGO^® model and actual CMS detector


CMS Barrel and Muon Rings (right-hand picture from this site).

CMS Calorimeter and Muon Endcaps (right-hand picture from this site).

CMS forward calorimeter and CASTOR detector (right-hand picture from this site).

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