CHEF2019 - Calorimetry for the High Energy Frontier 2019

Session

Sensors

26 Nov 2019, 14:00

Centennial Hall, Kyushu University

Conveners

Sensors

• Taikan Suehara (Kyushu University (JP))

Sensors

• Taikan Suehara (Kyushu University (JP))

38. Performance study of GAGG:Ce crystal

Zhigang Wang (Chinese Academy of Sciences (CN))

26/11/2019, 14:00

Inorganic scintillators with high density and high light output are widely used for the detection of ionizing radiation in high energy physics, space exploration, modern medical imaging and industry. Recently developed cerium-doped Gd3AL2Ga3O12 (GAGG:Ce) crystal is a promising scintillator with high density, high light yield , fast scintillation decay time and non-hygroscopicity used for...

52. Development of a new inorganic crystal GAGG for the calorimeter capable of the separation between neutrons and gammas

Koji Shiomi (KEK)

26/11/2019, 14:20

A new inorganic crystal Gd3Al2Ga3O12(GAGG) is being developed. This crystal is suitable for the electromagnetic calorimeters used in high energy physics experiments because the constant of light emission is short (- 90ns) and the light yield is as high as that of NaI(TI) crystals. In addition, the response of the crystal can be faster by doping materials.

By using GAGG crystals, we aim at...

61. Light yield and uniformity measurements of different scintillator tiles and studies of 4th generation Hamamatsu SiPMs

Gerald Eigen (University of Bergen (NO))

26/11/2019, 14:40

We present light yield and uniformity measurements of square tiles and hexagonal tiles that are read out with SiPMs via a Y11 fiber or directly from the side or from the top in a dimple. All tiles have an area of 9~cm^2. Their sides are wrapped with two layers of Teflon tape and the top and bottom faces are wrapped with two layers of Tyvec paper. We further show the first light yield and...

62. Time performance of large dynamic range SiPM

Sen Qian (Institute of High Energy Physics,CAS)

26/11/2019, 15:00

The silicon photomultiplier (SiPM) is a novel developed device with excellent single photon detection ability. Large dynamic range SiPM has been studied in high granularity calorimeter due to the advantages of insensitivity to magnetic fields, compactness, robustness, low bias voltage and low power. The Novel Device Laboratory (NDL) developed a low cost and large dynamic range SiPM with high...

50. Study on Saturation of SiPM for Scintillator Calorimeter using UV Laser

Naoki Tsuji (The University of Tokyo)

26/11/2019, 15:20

The saturation of SiPM can be an issue for scintillator calorimeter with SiPM readout. When a large number of particles hit a scintillator and a large number of photons are injected to a SiPM, the output of the SiPM can be saturated due to the limited number of pixels. In order to convert the output of the SiPM into the number of incident photons correctly, it is necessary to understand the...

60. Development of double SiPM readout method for ILD scintillator electro- magnetic calorimeter

Ryunosuke Masuda (University of Tokyo)

26/11/2019, 15:40

One of the concepts for detector mounted on the interaction point of ILC is International Large Detector (ILD). Sc-ECAL is a proposed option for the electromagnetic calorimeter of ILD based on 5 × 45 × 2 mm$^{3}$ plastic scintillator strip readout by SiPM. Virtual 5 × 5 mm$^{2}$ segmentation is realized by x-y configuration of strips.
　SiPMs with small cell pitch such as 10 and 15 $\mu$m are...

54. Current status of Hamamatsu Si detectors for collider experiments

Mr Yuto Ohashi (Hamamatsu Photonics)

26/11/2019, 16:30

Hamamatsu photonics has been producing many sensors like a photo-multiplier tube to HEP (high energy physics) experiments. Recently our Si sensors are used in many collider experiments. In LHC project, our SSD (Silicon strip detector) and Si-APD (Avalanche photodiode) were installed in CMS and ATLAS detectors, and contributed to the Nobel-Prize winning discovery of the Higgs boson in 2013. For...

30. Silicon sensors for the HGCAL upgrade: challenges, sensor design & electrical characterization

Erica Brondolin (CERN)

26/11/2019, 17:00

The CMS detector will undergo significant improvements to face the 10-fold increase in integrated luminosity of LHC, the so-called High-Luminosity LHC, scheduled to start in 2026. This will include a completely new calorimeter in the CMS endcap regions, which should be able to withstand fluences of up to 10^16 n_{eq}/cm^2. The new High Granularity Calorimeter (HGCAL) will have unprecedented...

42. Study of silicon sensors for precise timing measurement

Yuto Deguchi (Kyushu University)

26/11/2019, 17:20

We are studying silicon sensors with high time resolution for the particle identification in the International Linear Collider (ILC). In the International Large Detector (ILD), one of two detector concepts for the ILC, particle identification can be achieved with dE/dx measurement with the Time Projection Chamber, but is has insensitive energy range which has similar dE/dx with multiple kinds...

56. Study of Position Sensitive Silicon Detector (PSD) for SiW-ECAL at ILC

Mr Yuto Uesugi (Kyushu University), hep kyushu

26/11/2019, 17:40

The International Linear Collider (ILC) is a future electron-positron collider for precise measurements of Higgs bosons and various BSM searches. Silicon-tungsten electromagnetic calorimeter (SiW-ECAL) is one of the candidates to be used in the International Large Detector (ILD), one of the detector concepts for the ILC. The silicon sensor of the SiW-ECAL is segmented by 5.5 mm square cells to...