Instruments

Chemical Ionization ATOFMS (CI-ATOFMS)

Clifford

Born: 2007 San Diego, CA

Description: Chemical Ionization ATOFMS

Ionization Type: Proton Transfer

Polarity: Positive

Goal: Examinaning organic compounds in the atmosphere

Aircraft ATOFMS (A-ATOFMS)

Shirley

Born: 2005 San Diego, CA

Description: Aircraft ATOFMS

Inlet: Aerodynamic Lens

Size Range: ~ 70 nm - 1200 nm

Polarity: Positive and Negative

Laser: Big Sky 266 nm 50 Hz laser

Field Studies: SOAR I (Riverside), SOAR II (Riverside), SOAR III (Riverside), ICE-L (Boulder, CO)

Links: Shirley Pictures

Third Generation Instrument

Laverne

Born: 1999 Riverside, CA

Description: ATOFMS

Inlet: Nozzle

Size Range: ~ 200 nm - 3000 nm

Polarity: Positive and Negative

Laser: Big Sky 266 nm 20 Hz laser

Field Studies: Composite Model Rocket Emissions (UCSD), LDV Dyno Testing at CARB (El Monte), Utah Rocket Coal & Biomass Sampling, HDDV Dyno Testing (Riverside), Fine and Coarse Concentrator Study (Chapel Hill), CIFEX (Trinidad Head, CA), APMEX (Maldives), Freeway Study II (UCSD), SOAR I (Riverside), SOAR II (Riverside), SOAR II (Riverside), MILAGRO (Mexico City), PACDEX (Gosan, Korea), LABMS I, LABMS II

Links: Inside Laverne's Mass Spec and Laverne's First Trip

Second Generation Instrument

Jake

Born: 1996 Riverside, CA

Description: Ultrafine (UF) ATOFMS

Inlet: Aerodynamic Lens

Size Range: ~ 50 nm - 1000 nm (usually uses a MOUDI giving a 50 nm - 400 nm)

Polarity: Positive and Negative

Laser: Big Sky 266 nm 20 Hz laser

Field Studies: Marine Particle Study (Long Beach), Clean Air Fair, SCOS NARSTO 97 (Mt. Wilson, Central LA, and Diamond Bar), Dynamometer Vehicle Emission Study (El Monte), Freeway Study (Riverside), CRPAQS (Bakersfield), Vehicle Emission Study (Caldecott Tunnel), TexAQS (La Porte), Utah Source Study (Hill AFB), CRPAQS (Fresno), Rochester Concentrator-Ambient Study (NY), ANARChE (Atlanta), Composite Model Rocket Emissions (UCSD), LDV Dyno Testing at CARB (El Monte), Utah Rocket Coal & Biomass Sampling, HDDV Dyno Testing (Riverside), Ultrafine Particle Concentrator Study (Boston), Ultrafine Particle Concentrator Study (Tuxedo Park), Fine and Coarse Concentrator Study (Chapel Hill), Freeway Study II (UCSD), SOAR I (Riverside), SOAR II (Riverside), LABMS I, LABMS II

Notes: Was used along with Elwood as prototypes for the TSI 3800, switched from nozzle to aerodynamic lens in 2002

Links: Jake Pictures, TSI 3800

Elwood

Born: 1996 Riverside, CA

Description: ATOFMS

Inlet: Nozzle

Size Range: ~ 200 nm - 3000 nm

Polarity: Positive and Negative

Laser: Big Sky 266 nm 20 Hz laser

Field Studies: Marine Particle Study (Fullerton), SCOS NARSTO 97 (CE-CERT, Azusa, Mira Loma), Vehicle Emission Study (Caldecott Tunnel), Visibility Study (Grand Canyon), Dynamometer Vehicle Emission Study (El Monte), Freeway Study (Riverside), INDOEX (Indian Ocean), Atlanta Supersite, Combustion Research Center (Utah), TexAQS (Aldine), HDDV Dyno Study, CRPAQS (Angiola), ACE - Asia (Sea of Japan), PMTACS-NY, CALCOFI (California Coast), Freeway Study II (UCSD), LABMS II

Notes: Was used along with Jake as prototypes for the TSI 3800

Links: Elwood Pictures

First Generation Instrument

The Beast

Born: 1994 Riverside, CA

Description: ATOFMS

Inlet: Nozzle

Size Range: ~ 200 nm - 3000 nm

Polarity: Either Positive or Negative

Laser: Big Sky 266 nm 20 Hz laser

Field Studies: Has only been "portable" on a limited basis (The Beast Moves)

Links: Beast Pictures