IASC information

General information
Access mode Physical access
Infrastructure name and acronym Irish Atmospheric Simulation Chamber (IASC)
Location Cork, Ireland
51.8930° N, 8.4942° W
Legal name of organisation operating the infrastructure University College Cork - National University of Ireland, Cork
Description of the infrastructure
Brief general description of the infrastructure to which access is offered

IASC is a new custom-built facility funded by €1.1M from Science Foundation Ireland. The chamber is a 27 m3 cuboid (4.5 m long x 3 m wide x 2 m high) made of FEP Teflon foil, supported in a frame and surrounded by a temperature-controlled housing. Several banks of UV lamps provide radiation to enable studies of atmospheric photochemistry. The chamber is fitted with valves for filling/flushing the chamber with purified air and numerous ports for adding/sampling gases and particles. A specially designed access door allows items (sensors, test materials) to be positioned inside the chamber. 

The facility is equipped with a comprehensive range of instruments:
• State-of-the-art chemical ionisation time-of-flight mass spectrometer for monitoring volatile organic compounds (VOCs) and other gases at atmospherically relevant concentrations. 
• Unique custom-built spectroscopy system for in situ measurements of gases, radicals and properties of particles. Current capabilities are based on cavity enhanced spectroscopies and include HONO, NO2, NO3, radicals, as well as halogenated species (I2, IO etc.) and total extinction in the near UV. The system is customisable and can be adapted to measure a range of species over different parts of the spectrum. 
• Continuous online measurements of gases (NOx, O3, SOanalyzers) and particles (scanning mobility particle sizer).
• Two instruments that are unique within the EUROCHAMP consortium are also available:
- Single particle mass spectrometer (ATOFMS) for online measurements of aerosol composition
- Wideband integrated bioaerosol sensor (WIBS) for measurements of biological particles (bioaerosols).

Services currently offered by the infrastructure and its research environment

The new IASC facility is well equipped for innovative studies that address major challenges in air quality and climate research. The scientific team are experts in VOC degradation, SOA formation and characterisation, development and application of novel spectroscopic techniques for atmospheric measurements. We encourage fellow scientists working in these areas to make use of our unique facilities. However, the chamber has also been built to attract users from other areas, especially materials science and technology.
The versatile and highly-instrumented nature of the infrastructure makes it an ideal testbed for new technologies in atmospheric monitoring, sensors, pollutant removal etc. 
The facility will thus promote new synergistic collaborations between researchers in atmospheric and materials science, resulting in increased attractiveness to international partners and greater competitiveness in H2020 research funding calls.

Modalities of access and support offered under EUROCHAMP-2020
Typical duration of work

10 to 15 access days

Community/user type served

- Academic users (PhD and postdocs) for atmospheric process studies
- Industrial/SME partners for testing and evaluating performance of new sensors, atmospheric monitoring equipment etc. 

Scientific and technical support offered
Scientific support is provided by Prof. John Wenger, Prof. Andy Ruth and Dr. Dean Venables, who will work with users on experimental design and generate a detailed day-to-day plan for visits. 
Training in general use of the chamber and instrumentation will be provided by PhD qualified Technical Officers with many years of experience in this area. The technical team will also facilitate any modifications required to connect instruments, insert sensors and test materials etc.
Interpretation of data obtained by the time-of-flight mass spectrometer will be supported by Prof. Wenger, while detailed operation of the in-situ spectroscopy system (and subsequent data analysis) will be supervised by Prof. Ruth and Dr. Venables.
Logistic and administrative support offered The IASC Management Team will deal with all access requests and work with users to identify days/weeks that are most suitable for the proposed work. The operating schedule will be posted on the Facility’s website and updated regularly. Financial aspects of the Access Charge Plan will be managed by experienced staff working in the Chemistry Department and the University Finance Office.
Person in charge of access provision at the infrastructure

Professor John Wenger, Director of Centre for Research into Atmospheric Chemistry - University College Cork.

 Extended technical description
Physical description Cuboid made of FEP Teflon foil 
Dimensions: 3.85 m long, 2.40 m wide and 3.00 high. 
Volume = 27.2 m3
Surface area = 56.0 m²
Projected surface area: 7 - 11 m²
Surface/volume = 2.1 m-1

Temperature range = 18 – 23 °C
Pressure range = 1000-1030 mbar
RH range <1% - 65%
Irradiation spectra

125 UVA Lamps (Phillips Actinic BL TL 40W/10)

Emission spectrum

25 UVB Lamps (Phillips TL 40W/12 RS)

Emission spectrum

Estimated maximum J(NO2) value = 6×10-3 s-1


Aerosol lifetime  2-4 x 10-5 s-1
Auxiliary mechanism  Ongoing 
Description paper  Ongoing