We propose to perform a proof-of-principle test of a target station suitable
for a Neutrino Factory or Muon Collider source using a 24-GeV proton beam incident on a target
consisting of a free mercury jet that is inside a 15-T capture solenoid magnet. This test
could be performed in the TT2A tunnel of the NTOF proton line (upstream of the spallation
target). The tests would require only ~100 fast-extracted pulses of full PS
intensity, delivered in a pulse-on-demand mode of operation over about 10 shifts. The main piece of
apparatus is the LN2-precooled, 15-T copper magnet with a 15-cm-diameter warm bore and total
volume slightly over 1 m3. The principle diagnostic is a high-speed optical camera. The
mercury jet is part of a closed mercury loop that includes an insert into the bore of the
magnet.
Proposal (submitted to INTC): Studies of a Target
System for a 4-MW, 24-GeV Proton Beam
Approved as nToF11, alias MERIT
MERIT Control room (272 S-002): Tel.
75337 or 75622
Cellular(s): 160345 and 162845
CERN Control room (Prevessin): Tel.
76677
or 77500
Online information
about the experiment
- 20 June 2007: MERIT baseplate (VG), VRVS
- 11 June 2007: Safety follow-up (AF),
- 23 May 2007: HG system in TT2A (VG),
- 06 April 2007: Kirk's photo safari of the mercury loop check (KMcD),
- 04 April 2007: Summary pre-installation review (AF), VRVS
- 04 April 2007: Summary pre-installation review (pdf) (AF), VRVS
- 30 March 2007: Installation review (IE),
- 29 March 2007: TDR mercury loop (VG),
- 29 March 2007: Draft answer to the Hg safety review (AF),
- 21 March 2007: MERIT arrival at CERN (IE), VRVS
- 20 March 2007: Hg loop shipping list (AC),
- 07 March 2007: Test runs at MIT (2) (TT), VRVS
- 07 March 2007: First analysis of jet images at MIT (HP), VRVS
- 01 March 2007: Hg loop operation manual (draft) (VG),
- 01 March 2007: Hg loop installation manual (draft) (VG),
- 14 February 2007: World's first Hg jet at 20 m/s (HK),
- 10 February 2007: Hg system - Hg fill (VG),
- 10 February 2007: Hg system - Hg fill (VG),
- 10 February 2007: Hg system - Hg fill (VG),
- 07 February 2007: Hg system - status (VG), VRVS
- 24 January 2007: Flex hose in Hg loop (VG), VRVS
- 24 January 2007: Hg flex-hose page 21 (VG), VRVS
- 17 January 2007: Nozzle welding (KMcD), VRVS
- 20 December 2006: US update (), VRVS
- 06 December 2006: Jet movies (CERN copy) (HP), VRVS
- 06 December 2006: Nozzle tests at ORNL (), VRVS
- 22 November 2006: Hg-loop status (VG), VRVS
- 08 November 2006: Nozzle and beam windows (KMcD), VRVS
- 08 November 2006: Weekly documents (), VRVS
- 07 November 2006: Cinematics: Hg loop at MIT (PT), VRVS
- 13 October 2006: Water test - movies (VG),
- 20 September 2006: VRVS documents (HK), VRVS
- 20 September 2006: Hg loop - 1st water test (VG), VRVS
- 02 August 2006: Hg loop - status (VG), VRVS
- 07 July 2006: Summary Hg-loop review (AF),
- 20 June 2006: pre-hearing: transport (), CERN
- 19 June 2006: review: mercury loop (), CERN
- 19 June 2006: Hg loop review - agenda (), CERN
- 12 June 2006: TDR mercury loop (ORNL),
- 12 June 2006: Photos: Secondary containment vessel (KMcD),
- 01 June 2006: Hg loop - drawings (VG),
- 01 June 2006: Hg loop - appendix (VG),
- 01 June 2006: Hg loop - design report (VG),
- 24 May 2006: Hg loop - process diagram (VG), VRVS
- 05 May 2006: NUMU collab Friday meeting: targetry (),
- 05 April 2006: Hg loop test at AHC (VG), VRVS
- 05 April 2006: Magnetic forces on the tie-rods (SK), VRVS
- 20 March 2006: Hg shipping list (VG),
- 06 March 2006: 3D setup of solenoid/mercury loop (SolidWorks) (VG),
- 06 March 2006: SolidWorks download (version 2006) (),
- 22 February 2006: Hg loop status (VG), VRVS Venus (16:30 GMT+1)
- 01 February 2006: Titanium "snout" (VG), VRVS Venus (16:30 GMT+1)
- 01 February 2006: Paintball test (KMcD), VRVS Venus (16:30 GMT+1)
- 01 February 2006: Paintball test - 2 (KMcD), VRVS Venus (16:30 GMT+1)
- 12 December 2005: MERIT review (), BNL
- 17 November 2005: Hg loop review (), Princeton
- 17 October 2005: collaboration meeting (), MIT
- 29 June 2005: note: Induced radioactivity in the MERIT experiment (MS),
- 03 May 2005: Schematic layout of the window frame (VG), VRVS
- 29 April 2005: Collaboration meeting (), Princeton
- 15 March 2005: Collaboration meeting (), CERN
- 15 November 2004: Collaboration meeting (), Princeton
- 31 August 2004: workshop (), SNS
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