Towards a new horizon for biomedical applications of AMS

Maria, Daniele De

doi:10.3929/ethz-b-000497563

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System Description Design Of the Lea Ams System1

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2023

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“…Basic elements such as the ion source, injection magnet, and the fast beam bouncing system are copied from the MICADAS design, while the mass spectrometer following the acceleration stage has been modified according to the reduced ion energy. As a consequence, the beam curve radius of the high energy magnet is reduced from 350 mm (MICADAS) to 250 mm (LEA) and the curve radius for the electrostatic deflector is reduced from 380 mm (MICADAS) to 250 mm (LEA) (De Maria 2021). This leads to a reduction of the overall footprint of the system to just 2.0 × 3.0 m 2 , which is 1.5 m 2 less than the footprint of MICADAS.…”

Section: System Description Design Of the Lea Ams Systemmentioning

confidence: 99%

LEA—A NOVEL LOW ENERGY ACCELERATOR FOR ¹⁴C DATING

Ramsperger,

De Maria,

Gautschi

et al. 2023

Radiocarbon

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A newly developed compact AMS, LEA (Low Energy Accelerator), is tested and compared with a state-of-the-art AMS system MICADAS (Mini Carbon Dating System), which has a precision performance of better than 1‰ for modern 14C. The main difference between these two systems is the acceleration voltage, which has been reduced from 200 kV with the MICADAS system to 50 kV with the LEA system. In order to execute the final performance tests, exactly same samples (2 sets consisting of 7 standards, 4 blanks, 26 wood samples) are measured on both systems successively. The results show that the LEA system is fully operational, and the performance is entirely comparable with that of the MICADAS system.

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Section: System Description Design Of the Lea Ams Systemmentioning

confidence: 99%