HGCROC-Si and HGCROC-SiPM: the front-end readout ASICs for the CMS HGCAL

Bombardi, G.; Marchioro, A.; Vergine, T.; Bouyjou, F.; Guilloux, F.; Callier, S.; Dulucq, F.; Berni, M. El; Taille, C. De La; Raux, L.; Thienpont, D.; Extier, S.; Firlej, M.; Fiutowski, T.; Idzik, M.; Moroń, J.; Świentek, K.

doi:10.1109/nss/mic42677.2020.9508012

Cited by 6 publications

(7 citation statements)

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“…Due to the high levels of radiation expected during HL-LHC operation, the EM and HAD endcap calorimeters have to be replaced. The maximum fluence expected at the position of the endcaps is about 1.5×10 16 neq/cm 2 at the end of LHC operation. To maintain good energy resolution and cope with the increased pileup, the detector will feature high granularity and measure the time of arrival of incident particles [11].…”

Section: Pos(lhcp2022)128mentioning

confidence: 96%

“…The high-radiation and high-occupancy region where Si sensors are employed includes the full EM and the inner HAD compartment (|η| > 2.4) [12,13]. The sensors are expected to be exposed to a total radiation fluence ranging from 2×10 14 neq/cm 2 to 1×10 16 neq/cm 2 . They are produced…”

Section: Pos(lhcp2022)128mentioning

confidence: 99%

“…The HGCROC chip [15,16] is designed specifically for the HGCAL. The sensors need to be sensitive to minimum ionizing particles, as well as to high energy deposits (TeV-scale).…”

Section: Pos(lhcp2022)128mentioning

confidence: 99%

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Calorimetry towards high-granularity at LHC experiments

Paganis¹

2023

Proceedings of the Tenth Annual Conference on Large Hadron Collider Physics — PoS(LHCP2022)

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The increase of the instantaneous luminosity at the High-Luminosity LHC (HL-LHC, phase 2) places stringent requirements on the detectors. New proposed calorimeters have to be designed to operate in the harsh radiation environment at the HL-LHC, where the average number of interactions per bunch crossing is expected to exceed 140. The LHC experiments have proposed various high-granularity calorimetric solutions. In this talk, I focus on the new CMS high-granularity calorimeter (HGCAL), a highly granular sampling calorimeter with approximately six million silicon sensor channels ( 0.5 cm 2 and 1.1 cm 2 cells) and about four hundred thousand scintillator tiles read out by on-tile silicon photomultipliers. The HGCAL electronics, besides measuring energy and position of the energy deposits, are also designed to measure the time of particle arrival with a precision of about 50 ps. In HGCAL, we have developed a reconstruction approach that fully exploits the granularity to achieve optimal electron, photon and hadron identification, as well as good energy resolution in the presence of pileup.

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Section: Pos(lhcp2022)128mentioning

confidence: 96%

Section: Pos(lhcp2022)128mentioning

confidence: 99%

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Calorimetry towards high-granularity at LHC experiments

Paganis¹

2023

Proceedings of the Tenth Annual Conference on Large Hadron Collider Physics — PoS(LHCP2022)

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“…The HGCROC read-out chip [10,11] was specifically developed for the HGCAL. Our application requires a high dynamic range, as it is necessary to be sensitive to single minimum ionizing particles and as well to high energy deposits (TeV-scale).…”

Section: Electronicsmentioning

confidence: 99%

The CMS high granularity calorimeter for the High Luminosity LHC

Wiehe

2022

Nuclear Instruments and Methods in Physics Research Section A:

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“…The HGCAL calorimeter [1] will replace the existing endcap calorimeter in the CMS detector [2] and will be subjected to unprecedented luminosity and radiations levels in the HL-LHC operations. A radiation-tolerant adjustable high-current custom low-dropout linear regulator (LDO) has been designed to be installed in the powering chain, receiving ∼1.4 V from a DC/DC converter and delivering 1.2 V to the HGCROC front-end chip [3]. The LDO offers a ΔV OUT transient regulation of 80 mV (I min to I max in 1 μs), maintaining a low-dropout of 80 mV at 1 A and 180 mV dropout at 3 A load.…”

Section: Introductionmentioning

confidence: 99%

The radiation tolerance of a low voltage LDO developed for the CMS HGCAL on-detector electronics system

Irshad

Ceard

2022

J. Inst.

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The CMS detector will undergo the replacement of its current endcap calorimeter by a new high granularity calorimeter (HGCAL). The new HGCAL will need to withstand much higher radiation levels than the present endcaps. This poses tight requirements on the front-end electronics, including the powering chain. As part of this chain, a low-dropout linear regulator (LDO) has been designed and prototyped for post-regulation for HGCAL, providing extremely low noise and stable power to the analog front-end. We present results from tests of the LDO, including from a detailed irradiation campaign.

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HGCROC-Si and HGCROC-SiPM: the front-end readout ASICs for the CMS HGCAL

Cited by 6 publications

References 1 publication

Calorimetry towards high-granularity at LHC experiments

Calorimetry towards high-granularity at LHC experiments

The CMS high granularity calorimeter for the High Luminosity LHC

The radiation tolerance of a low voltage LDO developed for the CMS HGCAL on-detector electronics system

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