%0 Journal Article %1 0954-3899-16-5-012 %A Blake, P R %A Collis, V S %A Luksys, M %A Nash, W F %A Sephton, A J %D 1990 %J Journal of Physics G: Nuclear and Particle Physics %K mdtime %N 5 %P 755 %T Time dispersion of muons in EAS %U http://stacks.iop.org/0954-3899/16/i=5/a=012 %V 16 %X Describes the results and conclusions from an experiment set up to measure the time spread of muons in extensive air showers (EAS) detected at the Haverah Park EAS detector array, UK. The pulse risetimes (T 70 ) from 10% to 70% amplitude of the responses from 3*10 m 2 muon detectors are studied, and the anomalous pulse structure is investigated. The mean T 70 is studied as a function of shower size, zenith angle and core distance and its dependence on shower size is related to the elongation length of the EAS. Fluctuations in T 70 are studied as a method of yielding the mass composition of the primary particles. The measured fluctuations in T 70 are related to fluctuations in the depth of the electromagnetic cascade maximum. The results yield the same value for both the elongation rate and the fluctuation in the depth of maximum sigma (X m ) of 58(+or-23) g cm -2 . The results are consistent with simulation studies that assume protons are still the dominant component of cosmic rays in the energy range 10 17 to 10 18 eV.

@article{0954-3899-16-5-012, abstract = {Describes the results and conclusions from an experiment set up to measure the time spread of muons in extensive air showers (EAS) detected at the Haverah Park EAS detector array, UK. The pulse risetimes (T 70 ) from 10% to 70% amplitude of the responses from 3*10 m 2 muon detectors are studied, and the anomalous pulse structure is investigated. The mean T 70 is studied as a function of shower size, zenith angle and core distance and its dependence on shower size is related to the elongation length of the EAS. Fluctuations in T 70 are studied as a method of yielding the mass composition of the primary particles. The measured fluctuations in T 70 are related to fluctuations in the depth of the electromagnetic cascade maximum. The results yield the same value for both the elongation rate and the fluctuation in the depth of maximum sigma (X m ) of 58(+or-23) g cm -2 . The results are consistent with simulation studies that assume protons are still the dominant component of cosmic rays in the energy range 10 17 to 10 18 eV.}, added-at = {2018-12-13T17:46:13.000+0100}, author = {Blake, P R and Collis, V S and Luksys, M and Nash, W F and Sephton, A J}, biburl = {https://www.bibsonomy.org/bibtex/2c438a59ab66083ec6b69476b092dbf21/diego.ravignani}, description = {Time dispersion of muons in EAS - IOPscience}, interhash = {fb7d7bcbc3a8fa5a4e0668533395f619}, intrahash = {c438a59ab66083ec6b69476b092dbf21}, journal = {Journal of Physics G: Nuclear and Particle Physics}, keywords = {mdtime}, number = 5, pages = 755, timestamp = {2018-12-13T17:46:13.000+0100}, title = {Time dispersion of muons in EAS}, url = {http://stacks.iop.org/0954-3899/16/i=5/a=012}, volume = 16, year = 1990 }