{{Article|hl1|hl2}}
{{Cleanup}}
{{Technology Infobox
|image=FileC1a0e beam01.jpg|250px
|name=Anti-Mass Spectrometer
|affiliation=Black Mesa
|type=Materials analyzer
|maker=''Half-Life Decay.html">Rosenberg''Half-Life Decay''
|usedby=*Black Mesa scientists
*Gordon Freeman
|entity=
|designer=*Brett Johnson
*Kelly Bailey
*John Guthrie''Half-Life 2 Raising the Bar''
|hidei=
|hideu=
|hideg=yes
}}
{{Quote|They're waiting for you, Gordon. In the Test Chamber.|Black Mesa Science Team|Black Mesa scientist|Half-Life|Filec1a0 sci ctrl4a.ogg}}
The '''Anti-Mass Spectrometer''' is a room-sized piece of equipment located in Sector C's Sector C Lab C-33/a|Test Lab C-33/a at the Black Mesa Research Facility that is used to analyze exotic materials such as Xen crystals. It was designed by ''Half-Life Decay.html">Dr. Rosenberg.''Half-Life Decay''
==Overview==
FileHt01 test02.jpg|left|thumb|200px|The room under the test chamber.
Regular mass spectrometers are used to measure the mass and relative concentration of atoms and molecules, allowing the chemical composition and structure of a substance to be analyzed. This process does not work for exotic matter that has anti-mass (negative mass). The Anti-Mass Spectrometer works by scanning a sample with oscillating electromagnetic fields and beams of high-energy plasma, agitating the exotic matter of the Xen crystals. This results in currents of displacement energy within the crystal, which forms noticeable displacement fields that can be analyzed using advanced sensors developed by the Lambda labs. Samples are brought into the Test Chamber by a lift from the lower levels and is held by a Materials Handler|cart to be pushed by a person.
Despite the high levels of energy used in the experiments (running the spectrometer requires the use of a HEV Suit, and in ''Half-Life Blue Shift'' the process is shown to place visible strain on the entire facility's power sources), it was a typically safe procedure. The final experiment of the Black Mesa Anti-Mass Spectrometer, combining a highly unstable sample (GG-3883) and the disabling of certain safety features, triggered a Resonance Cascade and was the opening event of the Black Mesa incident. The Anti-Mass Spectrometer was heavily damaged during the Resonance Cascade, but not actually destroyed until Black Mesa itself was detonated.
==Gallery==
===''Half-Life''===
FileC1a0b control.jpg|The control room.
FileC1a0e beam02.jpg|Active.
FileC1a0e beam03.jpg|The stage 2.
FileCascade1.jpg|Vortigaunt being teleported.
FileCascade3.jpg|The Resonance Cascade.
FileCascade4.jpg|Ditto.
FileCascade5.jpg|Ditto.
FileC1a0c beam.jpg|The direct aftermath.
===''Half-Life Decay''===
FileHt01 control02.jpg|Richard Keller in the lower Anti-Mass Spectrometer Control Room.
FileScreen barrel.png|Schematics found in the lower Control Room.
FileHt01 lift.jpg|The Materials Handler inside the delivery system.
FileHt01 test01.jpg
FileHt01 button.jpg
FileHt01 crowbar02.jpg
FileHt01 incident.jpg
===''Half-Life 2''===
FileAnti-Mass Spectrometer (HL2) (intro).jpg|A faint depiction of a partially redone Anti-Mass Spectrometer test chamber during the opening sequence of ''Half-Life 2''.
FileIntro test chamber.jpg|The same location when reached via noclip.
==List of appearances==
===Main games===
*''Half-Life''
*''Half-Life Decay''
*''Half-Life 2'' {{C|Appears in the G-Man monologues}}
===Other===
*''Half-Life Day One'' {{1st}}
*''Half-Life 2 Raising the Bar''
==References==
{{Reflist}}
==External links==
*{{Wikipedia|Spectrometer|Spectrometer}}
*{{Wikipedia|Mass_spectrometry|Mass spectrometry}}
{{Technology}}
{{Black Mesa}}
CategoryHalf-LifeCategoryBlack Mesa technologyCategoryTechnologyCategoryHalf-Life Decay
