FELIRIDE Musings For Future Challenge Which Challenge s
- Slides: 18
FEL@IRIDE Musings For Future Challenge
Which Challenge (s) For A new Source?
With the capabilities of a FEL • • • Flexible in wave length: IR-X or even Gamma Flexible in time duration Microseconds to Attoseconds Large rep. Rate…
And capable of providing informations on… • Primakoff, U-boson production, Non linear QED…
Flexible-FEL (? ) • The Flexibility of FEL is a consequence of the capabilities of the e-beam source • But also of its • Conception in terms of the capabilities of new schemes for FEL operation (SPARC has provided an important test facility to try new schemes, in particular the seeding succesfully exported elsewhere) • A suitable «Architecture» merged in an innovative conception
Making use of the «Lamp-Genius»
Integrated «architecture» S-C-LINAC structures with 3 -4 Ge. V maximum energy Between the two Linacs a double FEL oscillator, with a manifold role, is inserted The undulator chain can be powered by the beam operating at full energy (3 -4 Ge. V) or less A second FEL oscillator is added for the operation in the UV region and for intra-cavity backscattering for the realization of a gamma source to be exploited for Nuclear Physics studies and the production of polarized electrons The third FEL section may operate in SASE or SEDEED mode The seeding will be achieved by exploiting a conventional seeding procedure or by using the selfseeding scheme based on a kind of oscillator-amplifier device, according to the scheme first developed in Barbini et al. “In prospects for 1 Angstrom FEL” Sag Harbor 1990
Operating region • IR-X
F. Ciocci (Courtesy)
SASE-SECTION
SASE-1. 5 Ge. V M. Artioli, F. Ciocci, E. Di Palma, A. Doria, G. P. Gallerano, E. Giovenale, L. Giannessi, P. L. Ottaviani, S. Pagnutti, A. Petralia, V. Petrillo, J. V. Rau, E. Sabia, I. Spassovsky, V. Surrenti and A. Torre
First Oscillator: Pumb & probe, bio-medical applications, X-ray Generation, Beam Heater, Two colors, Low Energy Gamma-Gamma collider
Second oscillator
FEL FOR SEEDING/PREBUNCHING linear/helical undulator with U = 4. 4 cm and KU = 4. 463 and two options for the Linac-delivered e-beam energy: i) Ee = 750 Me. V ( e = 1468) ii) Ee = 2. 28 Ge. V ( e = 4462) 1 � 120 nm ( 3 � 40 nm , 5 � 24 nm) 1 � 13 nm ( 3 � 4. 4 nm , 5 � 2. 6 nm)
An oscillator at 13. 5 nm Dispersion /n OK based modulator • • • OK ensures control of modulation rate* Mo-Si mirrors up to 70% reflectivity (not a critical parameter) Helical OK configuration (low on axis harmonic power) Intracavity harmonic generation (as in VERDI Coherent laser) Example: Cavity length of 41. 82 m for a bunch separation of 3 x 93 ns Beam size at Mirrors 1 & 1. 3 mm W=1. 35 mm @ 1° mirror radiator * G. Dattoli, L. Giannessi, P. L. Ottaviani, NIM A 507 (2003) 26 -30 R 1=18 m R 2=24 m
Costs • Quite a Simple rule • The costs are associated with the undulators • «dressed» undulator 0. 2 M-euro/m
Saturation Length
- Future perfect vs future continuous
- Future perfect continuous and simple
- Fallon sherrock smoking
- Future of mobility grand challenge
- Perfect future tense
- What is use in past tense
- Future perfect future continuous exercises
- Future nurse programme
- Past continuous and future continuous tense
- The moment
- Future continuous and future perfect
- Future plans and finished future actions
- Perfect future continuous tense
- Nulti kondicional
- Fspos
- Novell typiska drag
- Tack för att ni lyssnade bild
- Vad står k.r.å.k.a.n för
- Varför kallas perioden 1918-1939 för mellankrigstiden?