A cupronickel rotating band pion production target for muon colliders

Abstract

A conceptual design is prcscnted for a high power cuproiiickcl pion production target. It lorins a circular h~irid in a horizontal planc with apprnxiinatc dinicasioos of: 2.5 meters radios, 6 cin high and 0.6 cm thick. Thc target is continuously rotated at 3 i d s to carry hcat away from thc production rcgion to a water cooling channel. Bunches n l 16 CicV protons with total ciiergics oi270 kJ and repclition rates of 15 Hz arc incident leiigcritiiilly to arc of tlic targct along the symmetry axis of 21 20 liesla solcnoidal magnetic capture chanticl. The mechanical layout and cooling sctup arc dcscrihcd. lhults are prcseiitcd frnm realistic MAUS Moiitc Cmlo computcr simulatioiis o l thc pinn yield and encrgy dcpnsition in the targct. ANSYS finite clcment calcnlations arc beginning to givc predictions for tlic resultant shock heating stresses.

Rotating band pion production targets for muon colliders and neutrino factories

“…Such an R&D program appears plausible for the strawman design scenario of reference [1]. Items 3 and 4 also appear to be met by this scenario, as can be judged from the information presented in section 3 of this paper and elsewhere [1,2].…”

“…This section gives an overview of the general design goals that were considered important when proposing the target design of reference [1], and on the strategies employed to achieve these design goals. The intention was to design a target station that:…”

“…Rotating Band Target The discussion presented in this section and the two that follow are specific to the cupronickel rotating band target design proposed in reference [1], beginning with the overview of that conceptual design given in this section. Figure 1 gives a schematic overview of the target concept presented in reference [1] and figure 2 zooms in on the production region.…”

“…General design considerations and strategies for high power solid targets form the topic of the following section. Sections 3 through section 5 then focus in on a review of the specific cupronickel band design that was proposed in reference [1]. Specifically, section 3 gives an overview of the a Presented at the ICFA/ECFA Workshop "Neutrino Factories based on Muon Storage Rings" (νFACT'99), Lyon, France, 5-9 July, 1999.…”

“…Section 6 steps back from the parameters in [1] to examine the technology options and parameter optimizations available to the rotating band target concept for the spectrum of possible proton driver scenarios at both muon colliders and neutrino factories. The paper concludes with comments on the potential for the rotating band target concept and with an outlook on the R&D program required to bring this conceptual design to practical fruition.…”