Scintillation counters for the DØ muon upgrade

Acharya, B. S.; Baldin, B.; Banerjee, S.; Beri, S. B.; Bhatnagar, V.; Bhattacharjee, M.; Brandt, A.; Brock, R.; Butler, J. M.; Chopra, S.; Cummings, M. A.C.; Denisov, D.; Diehl, H. T.; Dugad, S.; Duggan, P. R.; Fahey, S.; Flattum, E.; Fortner, M.; Glebov, V. Yu.; Solís, J. L. González; Green, D.R.; Green, J.; Grossman, N.; Gupta, A.; Haggerty, H.; Hansen, S.; Hatcher, R.; Hedin, D.; Hernández-Montoya, R.; Tao, Hu; Igarashi, S.; Ito, A. S.; Jerger, S. A.; Johns, K.; Kalmani, S.D.; Kohli, J. M.; Krishnaswamy, M. R.; Markeloff, R.; Marshall, T.; McMahon, T. R.; Miller, D. J.; Mondal, N. K.; Nagaraj, P.; Narasimham, V. S.; Narayanan, A.; Nicola, M.; Nila, Michael Lee; Parua, N.; Pope, B. G.; Quintas, P. Z.; Rao, M. V. S.; Reddy, L.V.; Regan, T.; Rockwell, T.; Satyanarayana, B.; Shankar, H. C.; Singh, J. B.; Sood, P. M.; Taketani, A.; Vishwanath, P. R.; Wilcox, J.; Wood, D.; Yamada, R.; Yasuda, T.; Chang, S.; Johari, H.; Smart, W.; Fuess, S.; Ahn, S.; Carvalho, W.; Neto, J. R. T. de Mello

doi:10.1016/s0168-9002(97)01020-6

Cited by 15 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These counters are designed similar to the existing DØ Cosmic Cap counters [5]. WLS fibers are placed on the top side of the scintillator plate in machined 4mm wide grooves, 4 fibers in each groove, with a 4 mm space between grooves, so ½ of the scintillator plate is covered by fibers (Fig.4).…”

Section: Counters Using Fibers In Flat Groovesmentioning

confidence: 99%

See 1 more Smart Citation

Light collection from scintillation counters using WLS fibers and bars

Evdokimov

1998

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. Several methods of collecting light on scintillation counters using WLS fibers and WLS bars were studied. Nearly 20 prototype counters with different designs and with sizes ranging from 14×11×1.3cm 3 to 105×60×1.3cm 3 have been tested using cosmic muons and radioactive source. The efficiency of light collection on number of photoelectrons, uniformity of response, and time resolution have been measured. Test results for two new designs of light collection from scintillator based on WLS fibers around perimeter of scintillator plate and WLS fibers placed in machined on scintillator plate deep grooves are presented. Two out of the studied designs have been chosen as the basic options for the DØ muon system upgrade: light collection using two WLS bars for the forward muon scintillation counters and light collection using WLS fibers in deep grooves on scintillator for central area muon counters.

show abstract

Section: Counters Using Fibers In Flat Groovesmentioning

confidence: 99%

“…Uniformity for 12.7 mm thick counter 12 is 1.5 times better. It is easy to improve the light yield for counters using so few fibers by a factor of 1.8 by the use of more efficient but more expensive double-clad Kuraray Y-11 fibers [5].…”

Section: Counters With Fibers Around the Scintillatormentioning

confidence: 99%

Light collection from scintillation counters using WLS fibers and bars

Evdokimov

1998

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…We installed a small-scale test stand (∼ 6.5 m high, covering an area of 2.5 × 2.5 m 2 ) on the surface above the ATLAS interaction point in autumn 2017 that consists of three layers of RPCs used for timing/tracking and two layers of scintillators (top, bottom) for timing measurements to study efficiency of downward cosmic track rejection. The RPCs were provided by the group of Roma Tor Vergata from spares of the ARGO-YBJ experiment [5], while the scintillators and the phototubes were obtained from spares of the D0 experiment at Fermilab [4]. The goal is to estimate cosmic background that mimics upward-going tracks and the proton-proton collision backgrounds from ATLAS during nominal LHC operations.…”

Section: The Mathusla Test Standmentioning

confidence: 99%

Ultra long-lived particles searches with MATHUSLA

Camarri¹,

Alpigiani²

2019

Proceedings of the 39th International Conference on High Energy Physics — PoS(ICHEP2018)

View full text Add to dashboard Cite

Many extensions of the Standard Model include particles that are neutral, weakly coupled, and long-lived that can decay to hadronic and leptonic final states. The ATLAS, CMS, and LHCb experiments have performed searches for possible long-lived particles at the LHC and significant exclusion limits have been set in recent years. In this talk, we describe the MATHUSLA surface detector (MAssive Timing Hodoscope for Ultra Stable neutraL pArticles), which can be implemented with existing technology in time for the turn-on of the high luminosity LHC (HL-LHC). We installed a small-scale test stand on the surface above ATLAS IP in autumn 2017 for timing measurements to study efficiency of downward cosmic track rejection. This will provide useful information for the design of the main detector and important inputs for the future physics and detector simulations.

show abstract

“…The cosmic cap [57] was installed late in Run I, with additional counters installed in the shutdown prior to Run II [35,55]. The counters from different locations operate on the same principles, with some slight design differences which will not be examined in detail.…”

Section: A) Cosmic Countersmentioning

confidence: 99%