Dr
Rebecca McFadden
(ASTRON, the Netherlands Institute for Radio Astronomy)
6/29/10, 2:00 PM
UHE particle detection using the Lunar Čerenkov Technique aims to detect nanosecond pulses of Čerenkov emission which are produced during UHE cosmic ray and neutrino interactions in the Moon's regolith. These pulses will reach Earth-based telescopes dispersed, and therefore reduced in amplitude, due to their propagation through the Earth's ionosphere. To maximise the received signal to noise...
Prof.
Sean Danaher
(Northumbria University), Mr
Wichian ooppakaew
(Northumbria University)
6/29/10, 2:00 PM
The development of a new microcontroller eight channel hydrophone array driver will be presented and results shown for single channel tests, which show excellent agreement with the earlier LabView/PC based system.
Results of the deployment of the single channel system at the Rona test will be presented and predictions for the pulses generated by the linear array, particularly regarding the...
F. Simeone
(Physics Department University "Sapienza" and INFN,Roma)
6/29/10, 2:00 PM
In a deep-sea neutrino telescope it is mandatory to locate the position of the optical sensors with a precision of about 10 cm. To achieve that requirement, an innovative Acoustic Positioning System (APS) has been designed in the frame work of the KM3NeT neutrino telescope. The system will also be able to provide an acoustic guide during the deployment of the telescope’s components and...
Dr
Nectaria Gizani
(Hellenic Open University, School of Science and Technology)
6/29/10, 2:00 PM
The HEllenic LYceum Cosmic Observatories Network is a collaboration between Greek and Universities and the Cypriot open University as well as national Research Centres and Educators of the western greek prefecture.
HELYCON is an original telescope-array, which detects extensive Air Showers of very energetic cosmic rays coming from galactic and extragalactic sources. It is used not only for...
Dr
German Gusev
(Lebedev Physical Institute Russian Academy of Sciences)
6/29/10, 2:00 PM
The problems for registration of cosmic rays and neutrinos with the highest energies existing in Nature are considered. Perspectives to detect these particles by the radio method are discussed. Radio detectors apertures are calculated by the Monte Carlo simulation for space experiments, in which Moon and comparable-size ice satellites of planets in the Solar System are used as targets. The...
Prof.
Olaf Scholten
(KVI, Univ. of Groningen)
6/29/10, 2:00 PM
When an ultra-high energy (E>10^20 eV) neutrino hits the moon an electromagnetic pulse is generated. The instantaneous power of the pulse is so strong that they can be detected on Earth. In this presentation the observations will be described using the Westerbork Synthesis Radio Telescope on the basis of which more constraining limit have been set for the flux of neutrinos with energies...
Dr
Washington R. Carvalho Jr.
(Dept. Particle Physics, Univ. Santiago de Compostela)
6/29/10, 2:00 PM
We present ZHAireS a Monte Carlo code that allows the calculation
of the Cherenkov radio pulse emitted by electromagnetic, hadronic
and neutrino-induced showers in ice up to the EeV energies.
ZHAIRES combines the high energy hadronic interaction
capabilities of AIRES, and the dense media propagation
capabilities of TIERRAS, with the precise low energy tracking
and specific algorithms...
Larissa Paul
(RWTH Aachen),
Mathieu Ribordy
(EPFL Lausanne),
Thomas Meures
(RWTH Aachen)
6/29/10, 2:00 PM
We present the research activities for the feasibility of a large-scale acoustic detector for the detection of GZK neutrinos. Once this flux characterized, insights into cosmological source evolution, source spectra and composition at injection from the partial recovery of the degraded information carried by the ultra high energy cosmic rays can be gained.
In this presentation the...
Max Neff
(Erlangen Centre for Astroparticle Physics (ECAP))
6/29/10, 2:00 PM
The AMADEUS system is designed to investigate the method of acoustic particle detection for neutrinos and the acoustic background in the deep sea. Located in the Mediterranean Sea, it consists of six clusters of six acoustic sensors each.
The background of transient acoustic signals in the deep sea is very diverse stemming from anthropogenic and biological sources as well as weather...
Mr
Daniel Fraenkel
(KVI (Kernfisisch Versneller Instituut) Groningen)
6/29/10, 2:00 PM
The measurement of radio emission from air showers has proven to be an invaluable source of physical information for cosmic ray physics. Apart from providing more insight into the shower mechanisms, it can be used at the Pierre Auger Observatory to increase the the accuracy of the detection of cosmic rays of 10^18 eV and above. For this purpose the Pierre Auger Collaboration is deploying the...
Mr
David Fegan
(University College Dublin)
6/29/10, 2:30 PM
oral presentation
In the 1960’s, a small but vibrant community of cosmic ray physicists, trained in the methods and techniques of elementary particle physics and nuclear physics, pioneered new methods of detecting extensive air showers with the prime objective of searching for point sources of energetic cosmic rays. It was my personal good fortune to have been in the right place (University College Dublin) at...
Rolf NAHNHAUER
6/29/10, 3:10 PM
oral presentation
An overview an introductory talk on acoustic particle detection.
Dr
Clancy James
(Radboud University Nijmegen)
6/29/10, 3:50 PM
oral presentation
The lunar Cherenkov technique, by which (currently Earth-based) radio-telescopes observe the Moon to look for UHE cosmic ray and neutrino interactions in the lunar regolith, is a promising method for probing the very highest energy fluxes of these particles. However, predictions about the sensitivity of the technique tend to gloss over a number of important unknowns. How deep is the Moon's...
Dr
Andreas Horneffer
(Dep. Astrophysics, IMAPP, RU Nijmegen)
6/29/10, 5:00 PM
oral presentation
LOFAR is a new radio telescope that is being built in the Netherlands.
The core of LOFAR will have a high density of antennas, the central "superterp"
with nearly 600 antennas on a circular area of about 400m diameter, and more
stations close by. In addition, the calibration on multiple astronomical objects
will give an excellent calibration with an expected phase error of less than
50...
Dr
maaijke mevius
(kvi)
6/29/10, 5:30 PM
oral presentation
When an ultra-high energy (UHE) neutrino hits the Moon, it initiates an hadronic cascade below the surface. The cascade has a negative charge excess that propagates faster than the local speed of light, producing a short pulse of radio Cherenkov emission. The NuMoon project aims to detect these lunar radio pulses on Earth with low frequency radio telescopes.
The Low Frequency Radio Array...
Olivier Martineau-Huynh
(IN2P3-CAS)
6/29/10, 5:50 PM
oral presentation
The TIANSHAN Radio Experiment for Neutrino Detection (TREND) is a collaboration initiated in 2008 between the Chinese Academy of Science and the French IN2P3. This stand-alone antenna array aims at performing the radio-detection of extensive air shower (EAS) created by high energy neutrinos (>10^16.5 eV).
The TREND experiment is deployed on the site of 21CMA, a giant radio-telescope...
Mr
Robert Mutel
(University of Iowa)
6/29/10, 6:20 PM
oral presentation
R.L. Mutel, T. R. Jager, K. G. Gayley
University of Iowa
We present new flux limits for UHE neutrinos derived from radio searches using a lunar target. The RESUN search used three 4-antenna sub-arrays of the Expanded Very Large Array at an observing frequency of 1.4~GHz to search for short duration Cerenkov emission from the lunar limb. Each antenna’s down-converted waveform was sampled...
Dr
Nectaria Gizani
(Hellenic Open University, School of Science and Technology)
6/29/10, 6:40 PM
oral presentation
We are looking for radio `relics' and `halos' in an X-ray selected sample of clusters of galaxies. Most galaxy clusters have cool cores with AGN (Active Galactic Nuclei) at their centre. These AGN contain particle bubbles that show non-thermal radio emission. The presence of `radio relics και halos' observed at the periphery of the cluster radio structure could be explained if the bubbles can...
Mr
Matthew Mottram
(UCL)
6/30/10, 9:00 AM
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...
Mr
Andres Romero-Wolf
(University of Hawaii)
6/30/10, 9:30 AM
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)
6/30/10, 9:50 AM
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)
6/30/10, 10:10 AM
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)
6/30/10, 11:10 AM
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)
6/30/10, 11:40 AM
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)
6/30/10, 12:00 PM
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)
6/30/10, 12:20 PM
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)
6/30/10, 12:40 PM
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)
6/30/10, 2:20 PM
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)
6/30/10, 2:50 PM
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...
Mr
Chih-Ching Chen
(National Taiwan University)
6/30/10, 3:10 PM
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)
6/30/10, 3:30 PM
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....
Prof.
Olaf Scholten
(KVI, Univ. of Groningen)
6/30/10, 3:50 PM
The general properties of coherent electromagnetic radiation from extensive air showers will be discussed. It will be shown how certain properties of the radio signal can be understood independent of the details of the model and how other aspects reflect properties of the shower that we want to determine. Most of the examples will be based on the Macroscopic GeoMagnetic Radiation model,...
Dr
Tim Huege
(Karlsruhe Institute of Technology)
6/30/10, 4:20 PM
The LOPES experiment at the Karlsruhe Institute of Technology has been taking radio data in the frequency range from 40 to 80 MHz in coincidence with the KASCADE-Grande air shower detector since 2004. Various experimental configurations have been employed to study aspects such as the energy scaling, geomagnetic dependence, lateral distribution, and polarization of the radio emission from...
Ms
Alexandra Saftoiu
(National Institute for Physics and Nuclear Engineering Horia Hulubei)
6/30/10, 5:20 PM
We report here on analysis of 20 months of data taken with the LOPES radio antenna array set up in coincidence with the Grande array, both located at the Karlsruhe Institute of Technology, Germany. The radio antenna system is composed of 30 inverse-V-shape dipole antennas, 15 oriented in East-West and 15 oriented in the North-South direction.
We have restricted the analysis to a special...
Olivier RAVEL
(SUBATECH, Nantes)
6/30/10, 5:40 PM
After a brief history of the CODALEMA experiment set up at the radio observatory of Nançay, main performances and scientific results will be presented: detection efficiency, demonstration of the geomagnetic origin of the air shower electric field, energy calibration… At last, the future evolution of the experiment will be explained.
Thibault GARCON
(SUBATECH, Nantes)
6/30/10, 6:10 PM
The main characteristics of the environmental influence on the performances of the CODALEMA experiment are presented. It will be shown that the performances and sensitivity of the detector are not affected by the environment and that, moreover, some interesting, side observations can be made with such an instrument. Finally, it will be shown that the new setup of CODALEMA autonomous station...
Mr
Justin Bray
(University of Adelaide / Australia Telescope National Facility)
6/30/10, 6:30 PM
oral presentation
The LUNASKA project employs the lunar Cherenkov technique, using the Moon as a detector volume to search for ultra-high energy particles. The radio-frequency pulse from a shower induced by one of these particles in the lunar regolith may be detected by a terrestrial radio telescope; however, it is distorted en route by dispersion in the ionosphere, as well as by effects within the telescope...
Dr
German Gusev
(Lebedev Physical Institute Russian Academy of Sciences)
6/30/10, 6:50 PM
oral presentation
The feasibility of using the lunar orbital radio detector (LORD) to detect radio signals from showers initiated by ultra high energy particles interacting with the lunar regolith is studied. The design of the LORD space apparatus is presented. The sophisticated simulation by the Monte Carlo method has shown the necessity to take into account the radio signal reflection from the lower Lunar...
Dr
Alexandre Creusot
(University of Nova Gorica)
7/1/10, 9:00 AM
oral presentation
The Pierre Auger Observatory measures extensive air showers induced by ultra high energy cosmic rays using a hybrid detector (fluorescence and surface detector). The Pierre Auger Observatory has been designed for a high statistics, full sky study of cosmic rays at the highest energies. Energy, arrival direction and mass composition measurements are investigated in order to illuminate the...
Dr
Sergio Pastor
(IFIC Valencia)
7/1/10, 9:30 AM
oral presentation
The surface detector array of the Pierre Auger Observatory is sensitive to ultra-high energy neutrinos in the cosmic radiation, These particles can interact close to ground, both through charged and neutral currents in the atmosphere (down-going) and, for tau neutrinos, through the ”Earth skimming” mechanism (up-going) where a tau lepton is produced in the Earth’s curst that can emerge and...
Pedro Facal San Luis
(University of Chicago, KICP)
7/1/10, 10:00 AM
Microwave emission due to molecular bremsstrahlung in the
free electron collisions with the neutral molecules in the atmosphere
(within the plasma produced by the cascade ionization) could be used
to detect extensive air showers. Measurements show that molecular
bremsstrahlung scales quadratically with the primary energy and is
isotropic and unpolarized, and thus it could be used to...
Stefan Fliescher
(RWTH Aachen University)
7/1/10, 11:00 AM
oral presentation
AERA --- the Auger Engineering Radio Array --- is currently being set up at the southern site of the Pierre Auger Observatory. AERA will explore the potential of the radio detection technique to cosmic ray induced air showers with respect to the next generation of large-scale surface detectors. As AERA is co-located with the low energy enhancements of the Pierre Auger Observatory, the...
Harm Schoorlemmer
(Radboud university nijmegen)
7/1/10, 11:30 AM
At the Pierre Auger Observatory, the radio emission from cosmic-ray-induced air showers is measured. I will discuss the physics results from a setup consisting of three antennas triggered by an auxiliary particle detector. With this setup, a total 494 events were registered in coincidence with the surface detector of the Pierre Auger Observatory. This data allows us to study the dependence of...
Benoit Revenu
(SUBATECH, Nantes)
7/1/10, 11:50 AM
oral presentation
RAuger is a self-triggered and fully autonomous cosmic ray radio detection experiment installed at the Surface Detector (SD) of the Pierre Auger Observatory. Operating since July 2007, we have obtained more than 60 coincidences with Auger leading to a skymap (azimuth, zenith) showing evidence for a geomagnetic effect in the electric field emission mechanism. We also have obtained a three-fold...
Mr
Oliver Seeger
(Physikalisches Institut III A, RWTH Aachen University)
7/1/10, 12:10 PM
Oliver Seeger for the Pierre Auger collaboration
The Pierre Auger Observatory constitutes the currently largest detector for measurements of ultrahigh energy cosmic rays through extended air showers. Radio signals originating from the shower development have been detected with suitable antennas in the 50MHz regime. The Auger Engineering Radio Array (AERA) is being established to exploit the...
Mr
Didier Charrier
(SUBATECH, Nantes)
7/1/10, 12:30 PM
oral presentation
An active dipole antenna is in operation since five years at Nançay (France) in the CODALEMA experiment. A new version of this active antenna has been developed, whose shape gave its name of ‘Butterfly’ antenna. Compared to the previous version, this new antenna has been designed to be more efficient at low frequencies, which could permit the detection of atmospheric showers at large...
Christoph Rühle
(KIT-IPE)
7/1/10, 12:50 PM
oral presentation
The Auger Engineering Radio Array AERA will measure the radio emission of extensive air showers. One important component of the experiment is the self trigger system, which has to overcome various sources of background signals to detect the specific short radio pulses introduced by ultra high energetic cosmic rays. The goal of the system is to reduce the original raw data rate down to a...
Dr
Antje Putze
(Oskar Klein Center / Stockholm University / KTH)
7/1/10, 2:40 PM
oral presentation
One century after the discovery of cosmic rays, many questions remain open on its origin, nature, and transport. Experiments to detect them directly have constantly improved and are today highly diversified to address different cosmic-ray processes over a wide energy range. Indeed, precise measurements of cosmic rays in an energy range from ~10^4 eV to ~10^15 eV allow one to study the...
Dr
Andreas Haungs
(KIT)
7/1/10, 3:10 PM
oral presentation
KASCADE-Grande is a multi-detector experiment at KIT (Karlsruhe Institute of Technology), in Germany for measuring extensive air showers in the primary energy range of 100 TeV to 1 EeV. This presentation attempts to provide a synopsis of the current results of the experiment. In particular, the all-particle energy spectrum will be discussed. In addition, investigations on the elemental...
Dr
Sergey Ostapchenko
(Norwegian University for Science and Technology (NTNU))
7/1/10, 3:40 PM
oral presentation
Present status of extensive air shower (EAS) simulation procedures
is reviewed. The advantages of combining numerical and Monte Carlo
(MC) methods for the description of air shower development are
demonstrated. The relation to experimental techniques for the studies
of high energy cosmic rays is also addressed. The uncertainties in
the predicted EAS characteristics are analysed and...
Dr
Tim Huege
(Karlsruhe Institute of Technology)
7/1/10, 4:10 PM
oral presentation
Two very different approaches have been developed for the modelling of radio emission from cosmic ray air showers: the geosynchrotron model, implemented with Monte Carlo techniques in REAS3, and the MGMR model, based on a macroscopic description of transverse currents. Comparing the predictions of these very different models is a powerful way to gauge our understanding of radio emission...
Ms
Marianne Ludwig
(Karlsruhe Institute of Technology)
7/1/10, 5:10 PM
oral presentation
The Monte Carlo-code REAS simulates radio emission from cosmic ray air showers based on the
geosynchrotron model. In this talk, we present a revised version of the geosynchrotron model as implemented in REAS3. In the previous version of the code, emission due to the variation of the number of charged particles within an air shower was not taken into account. These emission contributions were...
David Seckel
(University of Delaware)
7/1/10, 5:30 PM
oral presentation
A parametric model for the "geo-synchrotron" radio emission from cosmic ray air showers is presented. The shower is treated as a smooth macroscopic current source, separable in cartesian "shower"-coordinates, which facilitates calculation of phase coherence at a remote detector. Time delays are kept to second order in shower size/distance (d/R), and account for varying index of refraction...
Krijn de Vries
(KVI/University of Groningen)
7/1/10, 5:50 PM
oral presentation
The time variation of a net macroscopic current in the thin shower front of an Extensive Air Shower gives rise to an electromagnetic pulse. This pulse will be emitted within the radio frequency range. A macroscopic model has been developed to simulate this radio pulse. Recent developments of this model will be discussed. Furthermore with the use of Monte-Carlo simulations we have investigated...
Colas Riviere
(CPPM)
7/1/10, 6:10 PM
oral presentation
We present here results of two complementary approaches of the modelization of EAS radio emission: an analytical model using extremely simplified shower geometry and a full Monte Carlo simulation. Both are based on the general expression of an accelerated relativistic charge and assumes a refractive index fixed to unity. The main characteristics of the obtained electric field is discussed...
Mr
Vincent Marin
(SUBATECH, Nantes)
7/1/10, 6:30 PM
oral presentation
The simulation is based on the complete geometrical description of air showers generated by protons above 10 PeV. Only electrons and positrons of the air shower are considered for the electric field computation. We give random initials conditions for energy, position and angular direction to each particle, following the distributions extracted from CORSIKA simulations (S. Lafebre et al). The...
Dr
Amy Connolly
(University College London)
7/1/10, 6:50 PM
oral presentation
Ultra-high energy neutrino experiments can probe neutrino-nucleon cross sections at center-of-mass energies higher than those of typical interactions at the LHC, where deviations from the standard model expectation can signal new physics. We will present new calculations of the neutrino-nucleon charged and neutral current cross sections and their theoretical uncertainties in the range...
Prof.
Nikolay Budnev
(Irkutsk State University)
7/2/10, 9:00 AM
oral presentation
We report the present status and perspectives of the feasibility study to detect cosmic neutrinos acoustically in Lake Baikal. The results of background studies are presented. It was shown that most of the detected neutrino-like pulses come from the lake surface. This fact has been used in project of an acoustic prototype detector that consists of compact modules with 4-channel antennas...
Prof.
Sean Danaher
(Northumbria University)
7/2/10, 9:30 AM
oral presentation
This will present an overview of the current state of the ACoRNE collabaration, including upper limits on neutrino fluxes and recent work on primordial black hole detection.
Dr
Robert Lahmann
(University of Erlangen)
7/2/10, 10:00 AM
oral presentation
The AMADEUS system is an integral part of the ANTARES neutrino telescope in the Mediterranean Sea. The project aims at the investigation of techniques for acoustic neutrino detection in the deep sea. Installed at a depth of more than 2000m, the acoustic sensors of AMADEUS are based on piezo-ceramic elements for the broad-band recording of signals with frequencies ranging up to...
Dr
Masami Chiba
(Tokyo Metropolitan University)
7/2/10, 11:00 AM
oral presentation
We measured radio wave reflection from rock salt irradiated by a 2MeV-electron beam in a wave guide filled with rock salt. We found that the reflected power of the radio wave was proportional to square of the electron-beam current with constant electron energy of 2MeV, simultaneously temperature of the rock salt was measured to be proportional to the electron beam current. It is explained that...
Manuel Bou-Cabo
(IGIC- Universitat Politècnica de València)
7/2/10, 11:20 AM
oral presentation
Calibration of acoustic neutrino telescopes with neutrino-like signals is an essential aspect to evaluate the feasibility of the technique and to know the efficiency of the detectors. However, it is not straightforward to have acoustic transmitters that, on one hand, are able to mimic the signature of a UHE neutrino interaction, that is, a bipolar acoustic pulse with the ‘pancake’ directivity,...
Mr
Alexander Enzenhöfer
(ECAP)
7/2/10, 11:40 AM
oral presentation
For future deep-sea neutrino telescopes, the use of acoustic sensors in combination with optical sensors in one detection module could provide unique properties, e.g. complementary neutrino detection methods, inherent position and orientation calibration ability and an enhanced possibility to study the deep-sea environment. A technical advantage of such combined opto-acoustical modules would...
Dr
Amy Connolly
(University College London)
7/2/10, 12:00 PM
oral presentation
I will give a status report on the SalSA project. SalSA is a proposed experiment aiming to measure ultra-high energy neutrinos which would consist of an array of antennas embedded in one of the many several km^3 salt formations that exist in many places around the world. So far the focus of the SalSA effort has been to establish its feasibility through in situ measurements of radio...
