Activities & equipment

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	Activities & equipment	IRB: Bijenička 54, HR-10000 Zagreb. tel: +385 (0)1 4561-111, fax: 4680-084, PR: 4571-269, mail: info@irb.hr
... Laboratories Laboratory for Measurement of Low-Level Activities Activities & equipment
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Activities of the Laboratory for Measurements of Low-level Radioactivity

Devices

Activities of the Laboratory for Measurements of Low-level Radioactivity

ISOTOPE MEASUREMENTS:

Radiocarbon dating of archaeological, geological and paleontological samples

Tritium activity measurements of natural waters (precipitation, surface and groundwater)

Use of stable (²H, ¹³C, ¹⁸O) and natural radioactive isotopes (³H, ¹⁴C) in hydrogeological studies (protection of water resources, especially in karst areas)

Use of isotopes in paleoclimatological and ecological studies

Study of physico-chemical conditions necessary for formation of secondary carbonates i(tufa, speleothems) in karst regions

PROCESSES IN GASES:

W and Fano factor in pure gases and gas mixtures

Gas amplification in a proportional counter

Primary distribution of the number of ion pairs

Electron energy degradation (energetic, subexcitation and thermalized electrons)

Devices

Vacuum lines for chemical preparation of methane from water samples and proportional counter for measurement of tritium activity

System for electrolytic enrichment of water with tritium for LSC measurements

Vacuum line for chemical preparation of benzene and for direct absorption of CO₂ for ¹⁴C measurement by LSC

Vacuum line for graphite preparation for measurement of ¹⁴C by accelerator mass spectroscopy (AMS) technique

Quantulus 1220 ultra low-level liquid scintillation counter (LSC)

Other: Centrifuge Heraeus, spectrophotometer Cecil CE2021, binocular zoom stereo microscope XTL-3400 with camera, ultrasonic bath, portable pH-meter, conductometer and oximeter

System for electrolytic enrichment of water with tritium for ³H activity measurement by LSC	Vacuum line for direct apsorption of CO₂ for ¹⁴C activity measurements by LSC	Vacuum line for benzene preparation for ¹⁴C activity measurements by LSC
Gas proportional counter for measurements of ³H activity by GPC	Liquid scintillation counter (LSC) Quantulus 1220 (Wallac Oy, Finland)	Vacuum line for preparation of graphite for ¹⁴C AMS measurement technique