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IJRSP Vol.41 [2012] >
IJRSP Vol.41(1) [February 2012] >
| Title: | Transition radiation as a tool for radio detection of ultra high energy neutrinos |
| Authors: | Sinha, Kalpana Roy
Datta, Pranayee |
| Keywords: | Radio Pulses
Radio Emission
Transition Radiation Mechanism
Ultra High Energy Neutrinos
Extensive Ice Shower
Lunar Regolith Shower |
| Issue Date: | Feb-2012 |
| Publisher: | NISCAIR-CSIR, India |
| PACS No.: | 95.85.Ry; 41.60.Dk |
| Abstract: | High
energy neutrinos passing through the Antarctic ice and lunar regolith can produce
radio pulses. A good number of experimental groups have been continuing
investigations on these radio pulses. Along with VHF -UHF radio pulses,
VLF-LF-MF radio pulses are also emitted from the Antarctic ice-air interface
and lunar regolith–vacuum interface due to excess negative charge of the
extensive ice shower (EIS) and lunar regolith shower (LRS) produced by
neutrinos. In this paper, some important aspects of VLF-LF-MF radio emission
(RE) from EIS and LRS in the ultra high energy (UHE) range have been studied
theoretically on the basis of the transition radiation (TR) mechanism. A
moon-based experimental set up for receiving lunar radio pulses and then
transmitting the same to earth-based or lunar orbital satellite borne radio
telescope has also been proposed. Simultaneous investigation of VHF-UHF and
VLF-LF-MF RE could give more confirmed information of the original event
characteristics. RE model in the framework of TR for EIS & LRS exhibits
significant characteristics with respect to frequency, shower size and zenith
angle variation and hence, TR mechanism can be utilized as a tool for radio
detection of UHE particles in the VLF-LF-MF band. On-going projects of EIS
& LRS may incorporate radio channels for <10 MHz to widen the scope of
radio detection of UHE particles. |
| Page(s): | 7-16 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Source: | IJRSP Vol.41(1) [February 2012]
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