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Paul Scherrer Institut

Tilman Rohe. Paul Scherrer Institut. Plans for pion irradiation in 2014. PSI,. 14. Oktober 2014. Facility. p E1 beam line at PSI Secondary beam line in proton accelerator Intense pion beam (a few 10 9 p /s) “Medium” energy (~280 MeV/c) Beam line is used by

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Paul Scherrer Institut

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  1. Tilman Rohe Paul Scherrer Institut Plans for pion irradiation in 2014 PSI, PSI, 14. Oktober 2014

  2. Facility • pE1 beam line at PSI • Secondary beam line in proton accelerator • Intense pion beam (a few 109p/s) • “Medium” energy (~280 MeV/c) • Beam line is used by • Particle physics: MuSan, AlCup, … • µSR (material science): Dolly • 2014 will be overboked • 2015 even worse (shorter beam period) • Possible access • “Test beam” • Informal, no written proposal, just ask • Low priority (no chance) • Scientific experiment • Written proposal (dead line 06.01.2014) • Presentation at the user’s meeting (27.-29.1.2014) • Beam time granted by committee • We are in direct competition with particle physics experiments pE1-beam line

  3. Application Strategy • Strong scientific case • Stress the material science • Pion irradiation data is important to understand how to model “pion damage” with neutrons and protons for “new” materials • List papers (in reviewed journals) resulting from the last irradiation (2009?) • Please send me the references of all papers reporting on pion irradiated samples by 01.12.2013 • Stress that PSI profits from this activity • Visibility in the papers (at least in the acknowledgements)NB: In the past this did not work well. This does not strengthen our position! • Modest period • Only about 4 weeks (1 needed to prepare the beam line) • Limits to • ~100 samples • fluences of max 1015 pi/cm2 (~1 week in the focus) • Support • Irradiation must be run by RD50 • Human resources • PSI: beam adjustment, link to local groups (1 person) • CERN: irradiation table, spectrometer (2 persons, not the whole time) • RD50: • Preparation of samples • Running the irradiation (dosimetry, placing and removing the samples, book keeping) • At least 2 persons during the irradiation +/- 1 week

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