SNAP f-engine for UTMOST2D Kathryn Plant CASPER 15 /8/2017
Outline • Host galaxies for Fast Radio Bursts • UTMOST and UTMOST2D • CASPER SNAP F engine for UTMOST2D
Fast Radio Bursts Lorimer Burst Frequency Time Lorimer D., Bailes M., McLaughlin M., et al 2007, Science, 318,777
Locating host galaxies Gemini r-band magnitude 25 Chatterjee et al. 2017
Molonglo Observatory Synthesis Telescope - Cylindrical paraboloid reflectors - 18000 square meter surface area - 2 perpendicular arms, 1.6km long
UTMOST: Existing System 7.8 Square Degree Field of View 2.14 ⁰ 352 fanbeams 4.64⁰ • East-West arm only • 352 Modules • 22 circularly polarised ring antenna per module • SKAMP custom receiver boards
UTMOST 2D • Led by Adam Deller at Swinburne University • New receivers in 5 sections of the North- South arm • Double the bandwidth • Dual polarisation
Upgrade will send RF signal over optical fibre
Upgrade will send RF signal over optical fibre SNAP
CASPER SNAP F-engine SNAP SKAMP
Bandpass sampling: 9 th Nyquist Zone 9 th Nyquist Zone UTMOST band
RFI Environment • Canberra • Mobile phone handsets • Mobile phone base stations UTMOST2D I I Power 750 800 850 900 Frequency [MHz]
CASPER SNAP f-engine • 10.6 microsecond time resolution • 8 tap PFB • 94kHz frequency resolution • 97.06 MHz sampled band, use ~60MHz for science • 1.4Gb/s data rate per SNAP
Preliminary Tests using Vela
• UTMOST2D aims to Conclusion find Fast Radio Bursts and their host galaxies. • The North-South arm will use SNAP boards and RFoF. • A CASPER f-engine is ready to go for UTMOST2D.
Questions?
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