Muon flux measuring system for neutrino experiments at the IHEP accelerator

Measurement of the Muon Neutrino Inclusive Charged Current Cross Section on Iron using the MINOS Detector

“…Thus, the muon flux may be used to both monitor and measure the neutrino flux. Numerous past experiments, going nearly as far back as the first accelerator neutrino beam experiment in the early 1960's, have used muon monitoring systems to monitor their tertiary beams and to infer or constrain the fluxes to the experiment [12,13,14,15,16,17].…”

“…In past experiments, muon monitors have been used to infer or constrain the neutrino flux to the experiment [12,13,14,15,16,17]. Past experiments have benefited from 9-16 muon alcoves which can be used to perform integral flux measurements, and the large number of alcoves permitted unfolding of the threshold measurements into a differential distribution of muons, and hence neutrinos.…”

“…In the 1970's, the IHEP-Serpukhov neutrino beam show in Figure 1.12 also used ion chambers to measure the muon flux in the downstream muon filter [16]. Similar to the CERN 1967 beam, the IHEP beam line had transverse slits or channels within the downstream iron shielding in which ionization chamber were placed.…”

“…Figure 1.13 shows the measured lateral muon distribution(profile) within slits 1, 5 and 10 corresponding to depths of 3, 6.8 and 18.5 m of Fe within the muon filter. It is noted in Ref [16] that the profiles exhibit asymmetries resulting from imperfect focusing of parent pions and kaons off of the target.…”

“…Ionization chambers were placed within the downstream muon fiter channels and used to measure the muon flux [16]. 25 muon filter which are used to monitor and also measure the flux.…”