Terahertz Coherent Synchrotron Radiation at DAΦNE
نویسندگان
چکیده
We investigate the phenomena related to the emission of coherent synchrotron radiation (CSR) in the Terahertz frequency range at the DAΦNE collider. In particular, we calculate the threshold for the synchrotron radiation (SR) induced single bunch instability, usually referred as microbunching instability (MBI) [1-4]. The MBI can potentially have some effect at very high current in DAΦNE as well as in the foreseen strong RF focusing mode presently under investigation [5]. We also study the possibility of using DAΦNE as a high stability broadband CSR source in the Terahertz frequency. The cases for the existing normal-conductive RF system and for the super-conductive one proposed in [6] are evaluated following the optimization scheme of references [7, 8]. Such special mode of operation requires a quasiisochronous lattice. Two possible solutions, with wigglers ON and OFF respectively, are also presented.
منابع مشابه
A Model for Producing Stable, Broadband Terahertz Coherent Synchrotron Radiation in Storage Rings*
We present a model for producing stable broadband coherent synchrotron radiation (CSR) in the terahertz frequency region in an electron storage ring. The model includes distortion of bunch shape from the synchrotron radiation (SR), enhancing higher frequency coherent emission and limits to stable emission due to a microbunching instability excited by the SR. We use this model to optimize the pe...
متن کاملIKNO, a user facility for coherent terahertz and UV synchrotron radiation.
IKNO (Innovation and KNOwledge) is a proposal for a multi-user facility based on an electron storage ring optimized for the generation of coherent synchrotron radiation (CSR) in the terahertz frequency range, and of broadband incoherent synchrotron radiation ranging from the IR to the VUV. IKNO can be operated in an ultra-stable CSR mode with photon flux in the terahertz frequency region up to ...
متن کاملObservation of broadband self-amplified spontaneous coherent terahertz synchrotron radiation in a storage ring.
Bursts of coherent synchrotron radiation at far-infrared and millimeter wavelengths have been observed at several storage rings. A microbunching instability has been proposed as the source for the bursts. However, the microbunching mechanism has yet to be elucidated. We provide the first evidence that the bursts are due to a microbunching instability driven by the emission of synchrotron radiat...
متن کاملTerahertz spectroscopy with a holographic Fourier transform spectrometer plus array detector using coherent synchrotron radiation.
By use of coherent terahertz synchrotron radiation, we experimentally tested a holographic Fourier transform spectrometer coupled to an array detector to determine its viability as a spectral device. Somewhat surprisingly, the overall performance strongly depends on the absorptivity of the birefringent lithium tantalate pixels in the array detector.
متن کاملObservation of broadband self-amplified spontaneous coherent terahertz synchrotron radiation in storage ring
Synchrotron radiation is generated by high-energy electron beams accelerated by magnetic bending fields. Coherent synchrotron radiation (CSR) occurs when the emission of multiple electrons in a bunch is in phase, resulting in a quadratic dependence of the power emitted on the number of electrons participating. CSR is possible when the either the entire electron bunch or any longitudinal structu...
متن کامل