| Title: |
Dynamic tunable notch filters for the Antarctic Impulsive Transient Antenna (ANITA) |
| Authors: |
Allison, P; Banerjee, O; Beatty, JJ; Connolly, A; Deaconu, C; Gordon, J; Gorham, PW; Kovacevich, M; Miki, C; Oberla, E; Roberts, J; Rotter, B; Stafford, S; Tatem, K; Batten, L; Belov, K; Besson, DZ; Binns, WR; Bugaev, V; Cao, P; Chen, C; Chen, P; Chen, Y; Clem, JM; Cremonesi, L; Dailey, B; Dowkontt, PF; Hsu, S; Huang, J; Hupe, R; Israel, MH; Kowalski, J; Lam, J; Learned, JG; Liewer, KM; Liu, TC; Ludwig, AB; Matsuno, S; Mulrey, K; Nam, J; Nichol, RJ; Novikov, A; Prohira, S; Rauch, BF; Ripa, J; Romero-Wolf, A; Russell, J; Saltzberg, D; Seckel, D; Shiao, J; Stockham, J; Stockham, M; Strutt, B; Varner, GS; Vieregg, AG; Wang, S; Wissel, SA; Wu, F; Young, R |
| Source: |
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 894 pp. 47-56. (2018) |
| Publisher Information: |
ELSEVIER SCIENCE BV |
| Publication Year: |
2018 |
| Collection: |
University College London: UCL Discovery |
| Subject Terms: |
Neutrino radio detection; Ultra-high-energy; Notch filtering; Military communications satellites |
| Description: |
The Antarctic Impulsive Transient Antenna (ANITA) is a NASA longduration balloon experiment with the primary goal of detecting ultra-highenergy (> 1018 eV) neutrinos via the Askaryan Effect. The fourth ANITA mission, ANITA-IV, recently flew from Dec 2 to Dec 29, 2016. For the first time, the Tunable Universal Filter Frontend (TUFF) boards were deployed for mitigation of narrow-band, anthropogenic noise with tunable, switchable notch filters. The TUFF boards also performed second-stage amplification by approximately 45 dB to boost the ∼ µV-level radio frequency (RF) signals to ∼ mV-level for digitization, and supplied power via bias tees to the first-stage, antenna-mounted amplifiers. The other major change in signal processing in ANITA-IV is the resurrection of the 90◦ hybrids deployed previously in ANITA-I, in the trigger system, although in this paper we focus on the TUFF boards. During the ANITA-IV mission, the TUFF boards were successfully operated throughout the flight. They contributed to a factor of 2.8 higher total instrument livetime on average in ANITA-IV compared to ANITAIII due to reduction of narrow-band, anthropogenic noise before a trigger decision is made. |
| Document Type: |
article in journal/newspaper |
| File Description: |
text |
| Language: |
English |
| Relation: |
https://discovery.ucl.ac.uk/id/eprint/10056759/1/Cremonesi_1709.04536.pdf; https://discovery.ucl.ac.uk/id/eprint/10056759/ |
| Availability: |
https://discovery.ucl.ac.uk/id/eprint/10056759/1/Cremonesi_1709.04536.pdf; https://discovery.ucl.ac.uk/id/eprint/10056759/ |
| Rights: |
open |
| Accession Number: |
edsbas.B2B23D63 |
| Database: |
BASE |