Latest Developments in Particle Physics Research

Cutting-edge advancements in particle physics research include plans for undulator scheme R&D with pulsed solenoid technology and plasma lens investigations. Additionally, there are collaborative efforts among various universities and labs for developing full-scale prototypes. Reviving rotating wheel activities and exploring new developments in solenoid design are also high on the agenda.

• Particle Physics
• Research
• Undulator Scheme
• Pulsed Solenoid
• Plasma Lens

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1. Sources Subgroup Summary IDT-WG2, July 11, 2023, K. Yokoya Jul.3 38th Regular meeting Sabine Riemann, Andriy Ushakov, Masao Kuriki, Gudi Moortgat, Carmen Tenholt, Yoshinori Enomoto, Phil Burrows, Peter Sievers, Hitoshi Hayano, Tsunehiko Omori, Kaoru Yokoya Indico https://agenda.linearcollider.org/event/10090/ Topics Plan of undulator scheme R&D overview-grant.pdf Gudrid Moortgat-Pick Pulsed solenoid, optic matching 23_07_03_Solenoid.pptx Carmen Tenholt Next meeting Not decided yet 2023/05/02 WG2 K.Yokoya 1

2. Plan of undulator scheme R&D (Gudi) Pulsed solenoid ( Carmen) Plasma lens being investigated by Formela, Hamann, Loisch downscaled prototype (factor 5) designed and produced first measurement start this month further grant application for full prototype German BMBF grant application only every 3 years deadline was July 1st, 2023 first news probably end of the year collaborative effort ..together with other Universities+labs 2023/05/02 WG2 K.Yokoya 2

3. Plasmas for Particle Physics Applications Hamburg+Bonn+Frankfurt+Karlsruhe+Mainz full scale prototype plasma lens for ILC test of lens at Mainz, need high pulse generators (Karlsruhe) full simulation of e+ sources for ILC, HALHF simulation and testing of polarization transport in plasma generation of polarized plasma 2023/05/02 WG2 K.Yokoya 3

4. Revive of rotating wheel activities Meeting with Sabine Riemann, Peter Sievers, Ian Bailey, Jeff Gronberg, Phil Burrows, Andrew Lankford, Carmen+Gregor, Steinar Stapnes and Steffen Doebert maybe some ITN money for the wheel 2 Possibilities: a) get back old wheel, or b) construct new prototype also needed for HALHF e+ source .. Oxford puts money in for HALHF Plans ITN money provides a push ! pulsed solenoid, rotating wheel favourable to revive UK spinning target Inclusion of e+ source for HALHF concept 2023/05/02 WG2 K.Yokoya 4

5. New developments on the pulsed solenoid and the optic matching (Carmen) Design parameters ~50 kA peak 4 ms half-sine pulse + 1ms flat-top 7 turns, linear taper ( 20mm 80mm) Peak field ~5 T Average heat load on target: 73 W + 711 W Peak force on wheel 612 N Mechanical prototype design pending 2023/05/02 WG2 K.Yokoya 5

6. Plan for Pulsed Solenoid Funding available for prototype design Mechanical design department at DESY signaled available manpower for design Goal of development is a prototype solenoid to demonstrate ---- field strength & distribution, field stability, mechanical stability, thermal stability. No vacuum vessel in the first prototype Start of mechanical design in ~autumn Overall goal is to resolve open questions on mechanical feasibility of design 2023/05/02 WG2 K.Yokoya 6