M.
Matthew Mottram
(UCL)
30/06/2010 09:00
oral presentation
The ANtarctic Impulsive Transient Antenna (ANITA) is a balloon borne antenna array designed to detect coherent radio Cherenkov radiation produced by ultra-high-energy neutrinos (UHE, $E>10^{18}eV$) interacting in the Antarctic ice sheet. ANITA completed its second science flight in the Austral Summer of 2008-09, launching on 21st December and recording over 20 million RF induced triggers...
M.
Andres Romero-Wolf
(University of Hawaii)
30/06/2010 09:30
oral presentation
The ANtarctic Impulsive Transient Antenna (ANITA) is a balloon-borne
antenna array designed to detect coherent radio Cherenkov radiation
from ultra-high energy (UHE) neutrino-induced particle showers in the
Antarctic ice sheet. The data of the first flight (2006-2007) have
been re-analyzed using more sensitive radio-interferometric mapping
technique. This approach has produced a...
Ilya kravchenko
(University of Nebraska-Lincoln)
30/06/2010 09:50
oral presentation
D. Besson a), R. Dagkesamanskii b), E. Kravchenko b), and I. Zheleznykh c)
a)KU, Lawrence, USA
b)PRAO LPI RAS, Pushchino, Moscow region, Russia
c) INR RAS, Moscow, Russia
Abstract
We present a brief overview of experimental efforts in Antarctica to search for radio pulses from electron-hadron...
Ilya Kravchenko
(University of Nebraska-Lincoln)
30/06/2010 10:10
oral presentation
The RICE experiment on detection of UHE neutrinos has been running over a decade. The experiment comprises an array of radio antennas buried in ice to the deptn of up to 300 meters near the geographic South Pole, and is designed to observe neutrino interactions in ice employing the radio Cherenkov technique. We discuss new limits on the diffuse UHE neutrino flux that now include the full...
Timo Karg
(University of Wuppertal)
30/06/2010 11:10
oral presentation
The South Pole Acoustic Test Setup (SPATS) has been deployed to study the feasibility of acoustic neutrino detection in Antarctic ice around the South Pole. An array of four strings of sensors and transmitters, deployed in the upper 500 m of four IceCube boreholes, and a retrievable transmitter that can be used in the water filled holes before the installation of the IceCube optical strings...
Dr
Jens Berdermann
(DESY)
30/06/2010 11:40
oral presentation
The South Pole Acoustic Test Setup (SPATS) consists of four strings, which
are deployed in the upper 500 m of IceCube holes. Each string is instrumented
with seven acoustic sensors and transmitters to study attenuation length,
noise level, sound speed and transient acoustic events in the ice within the
10 to 100 kHz frequency range. Data taking and investigation of transient events
...
Dr
Hagar Landsman
(University of Wisconsin, Madison)
30/06/2010 12:00
oral presentation
In 2006-2010, several Radio Frequency (RF) detectors and calibration
equipment were deployed as part of the IceCube array at depths between
5 to 1400 meters in preparation for a future large scale GZK detector.
IceCube's deep holes and well-established data handling system provide a
unique opportunity for deep-ice RF detection studies at the South-Pole.
I will present verification...
Sebastian Böser
(Physikalisches Institut Universität Bonn)
30/06/2010 12:20
oral presentation
We explore the possibility to complement the cosmic ray physics program of the IceCube observatory with an extended surface array of radio antennas.
The combination of air-shower sampling on the surface and muon calorimetry underground offers significant scientific potential: the neutrino sensitivity above the horizon can be enhanced by vetoing air-showers on the ground, photon-induced...
Dr
Andres Romero-Wolf
(Dept. Physics, Univ. of Hawaii, USA)
30/06/2010 12:40
oral presentation
We have developed an algorithm to obtain the electric field of the Cherenkov radio
pulse in the time domain as produced by a single charged particle track in a dielectric
medium. The algorithm is implemented in a Monte Carlo simulation of electromagnetic
showers in dense media, and the coherent Cherenkov radio emission can be obtained
simultaneously in the time and frequency domains...
Prof.
Kara Hoffman
(University of Maryland)
30/06/2010 14:20
oral presentation
Building on the expertise gained by RICE, ANITA and IceCube's radio extension in the use of the Askaryan effect in cold Antarctic ice, we are currently developing an antenna array known as ARA (The Askaryan Radio Array) to be installed in boreholes extending 200 m below the surface of the ice near the geographic South Pole. The unprecedented scale of ARA, which will cover a fiducial area of 80...
Prof.
Kael Hanson Hanson
(Université)
30/06/2010 14:50
oral presentation
The Askar'yan Radio Array of antennas (ARA) is currently being planned for construction and deployment in Antarctica in the coming years. It will cover an area of order 80 square kilometers which will almost certainly be sufficient to prove the Askar'yan technique and establish existence of the GZK neutrino flux. ARA will utilize waveform capture of transient impulses in order to reduce...
M.
Chih-Ching Chen
(National Taiwan University)
30/06/2010 15:10
oral presentation
Askaryan proposed to detect Cherenkov signals by radio wave from the negative charge excess of particle showers 50 years ago. The theory of Cherenkov pulses with Fraunhofer approximation was widely studied in last two decades. However, at high energies or for high density materials, interacting processes are suppressed by a mechanism formulated by Landau, Pomeranchuck and Migdal. The LPM...
Prof.
David Seckel
(University of Delaware)
30/06/2010 15:30
oral presentation
We have developed an electromagnetic attenuation model for Antarctic ice in the frequency band 1MHz - 5GHz, appropriate for experiments such as ANITA or ARA which propose to detect high energy cosmic particles via radio emission induced in the continental ice. The model incorporates a frequency model of ice conductivity dependent on local temperature and ionic impurity concentrations....
