Towards an International Cooling Experiment Motivations Ionization cooling

Towards an International Cooling Experiment Motivations: --Ionization cooling is an important ingredient in performance and cost of a neutrino factory --It has never been observed experimentally --It is a delicate design and engineering problem Goal --design, engineer, build a section of cooling channel that is part of a high performance neutrino factory design --put it in a beam and show that it works as expected (if not, understand why!) The beam never lies. This is a somewhat larger project that can be afforded by anyone of the worlds regions => International collaboration International cooling experiment 1

Circa 10% cooling of 200 Me. V muons requires 20 MV of RF single particle measurement precision could be as good as D ( e out/e in ) International cooling experiment = 10 -3 2

International cooling experiment 3

Steering committee: Europe: A. Blondel* , H. Haseroth, R. Edgecock Japan : Y. Kuno + …. US: S. Geer, D. Kaplan, M. Zisman *convener for coming year charge: assemble « technical team » representing two regions in each of the following aspects. Web site: http: //hep 04. phys. iit. edu/cooldemo/ thanks to Yagmur Torun - torun@iit. edu International cooling experiment 4

Technical Team leaders for the ionization cooling experiment ======================== These nominees in charge of task forces have the following chief responsabilities: a) organise the corresponding session for the workshop on 25 -27 october b) assemble the necessary team c) if possible recommend a technical solution d) foresee a description of the design/performance/preliminary cost estimate of their part for the document to be issued mid-november International cooling experiment 5

a) concept development and simulations: Alessandra Lombardi (Alessandra. Lombardi@cern. ch) Panagiotis Spentzouris (spentz@fnal. gov) b) Hydrogen absorbers: Shigeru Ishimoto ( shigeru. ishimoto@kek. jp) Mary-Anne Cummings ( macc@fnal. gov ) c) RF cavities and power supplies Bob Rimmer (rarimmer@lbl. gov) Roland Garoby (Roland. garoby@cern. ch) d) magnets Mike Green magreen@lbl. gov Helmut Haseroth helmut. haseroth@cern. ch (provisionally) e) particle detectors Vittorio Palladino vittorio. palladino@na. infn. it Alan Bross bross@fnal. gov f) beam lines Rob Edgecock edgecock@mail. cern. ch Claude Petitjean claude. petitjean@psi. ch g) RF radiation Jim Norem norem@anl. gov Ed Mc. Kigney e. mckigney@ic. ac. uk International cooling experiment 6

Proposed agenda: 2001 Expose detectors to RF radiation (potential show stopper) write first description of experiment with two options US design (200 MHz) or CERN design (88 MHz) US simulate CERN scheme [and vice versa if possible] Evaluate availability and cost of main cost drivers: RF cavities / amplifiers/ power supplies/solenoids for each scheme evaluate beams + host labs 1 st workshop 25 -27 October 2001, CERN ! 16 Nov. 2001 ! Chose technology + host lab, write + submit proposal 8 januray 2002 PSI international research committee spring 2002 Technical proposal summer 2004 1 st beam International cooling experiment 7

16 NOVEMBER !!!? ? ? YES. . . C. Petitjean from PSI needs our PROPOSAL by that date for distribution to the research committee that meets on january 8, 2001 This should be a PROPOSAL so that it be discussed by the committee. The proposal should include -- motivation for Neutrino Factory -- motivation for cooling experiement -- description of goals and expected results -- description of technical solution(s) envisaged. -- description of precise beam and space requirements and solutions at PSI -- preliminary cost estimate. Thus this is not a full technical proposal, to be finalized for spring 2002. International cooling experiment 8

Agenda of workshop 25 -27 october 2001 Should we have parallel or sequential team meetings? Workshop announcement: http: //muonstoragerings. cern. ch/October 01 WS/oct 01 ws. html International cooling experiment 9

A (possible, likely) scenario for realization RF cavity : build in US (LNBL) 4 -cell 200 MHz cavity => circa 20 MV RF Power: assembled from 200 MHz hardware existing at CERN + (non negligible modifications!) Solenoids: to be build and cost to be shared. H 2 absorbers: collaboration IIT+Japan Beam and exp. area: PSI or RAL detectors: Sci. Fi (ICL, etc. . ) or silicon, => effect of RF! + beam instrumentation (TOF, chamber) PID International cooling experiment 10