In order to enable an iCal export link, your account needs to have an API key created. This key enables other applications to access data from within Indico even when you are neither using nor logged into the Indico system yourself with the link provided. Once created, you can manage your key at any time by going to 'My Profile' and looking under the tab entitled 'HTTP API'. Further information about HTTP API keys can be found in the Indico documentation.
Additionally to having an API key associated with your account, exporting private event information requires the usage of a persistent signature. This enables API URLs which do not expire after a few minutes so while the setting is active, anyone in possession of the link provided can access the information. Due to this, it is extremely important that you keep these links private and for your use only. If you think someone else may have acquired access to a link using this key in the future, you must immediately create a new key pair on the 'My Profile' page under the 'HTTP API' and update the iCalendar links afterwards.
Permanent link for public information only:
Permanent link for all public and protected information:
The detection of ultra-high energy cosmic neutrinos, i.e. energies above 10^18 eV, would open a new field of particle astrophysics. These neutrinos would not only provide crucial information on the GZK mechanism, but as the universe is opaque to any other particle with an energy above this energy scale, neutrino are the messengers to detect in search for extreme high energy astrophysical sources. The expected flux of cosmic neutrinos with ultra-high energy is however low, so that large scale neutrino telescopes (> 100 km^3) are needed. A solution is offered by the acoustic detection of neutrinos:
The energy deposition of cosmic ray particle in water generate thermo-acoustic signal, which can travel for many kilometres with only small attenuation in the relevant acoustic frequency range.
Efforts to build a detection system based on piezo-electric hydrophones have already been carried out. An alternative technology is based on optical fibres and that has several advantages over conventional hydrophones: Fibres form a natural way to create a distributed sensing system in which several sensors are attached to a single optical fibre. Fibre optics technology provides a cost-effective and straightforward way to implement a large scale sensor network.
In this talk the fibre optic hydrophone technology will be presented and the results of several measurement campaigns in an anechoic basin that demonstrate the required hydrophone sensitivity will be discussed. Based on these measurements and realistic simulations the feasibility of the application in future large scale cosmic ray experiments will be shown.