🎁 The supporting structure of the new CMS HGCAL detector has arrived at @cern.bsky.social for assembly!
🛳️ 🚚 After an eight-week journey, the first HGCAL absorber structure was delivered and is ready to be assembled ready for #HiLumi!
👉 cms.cern/news/support...
🛳️ 🚚 After an eight-week journey, the first HGCAL absorber structure was delivered and is ready to be assembled ready for #HiLumi!
👉 cms.cern/news/support...
December 19, 2025 at 9:29 AM
🎁 The supporting structure of the new CMS HGCAL detector has arrived at @cern.bsky.social for assembly!
🛳️ 🚚 After an eight-week journey, the first HGCAL absorber structure was delivered and is ready to be assembled ready for #HiLumi!
👉 cms.cern/news/support...
🛳️ 🚚 After an eight-week journey, the first HGCAL absorber structure was delivered and is ready to be assembled ready for #HiLumi!
👉 cms.cern/news/support...
Groundbreaking calorimeter for the #HiLumiLHC
The @cmsexperiment.bsky.social has recently completed the first prototype slice of its innovative High-Granularity Calorimeter (HGCAL), which will be the largest silicon-based detector ever built.
Read more: home.cern/news/news/ex...
The @cmsexperiment.bsky.social has recently completed the first prototype slice of its innovative High-Granularity Calorimeter (HGCAL), which will be the largest silicon-based detector ever built.
Read more: home.cern/news/news/ex...
January 30, 2026 at 9:20 AM
Groundbreaking calorimeter for the #HiLumiLHC
The @cmsexperiment.bsky.social has recently completed the first prototype slice of its innovative High-Granularity Calorimeter (HGCAL), which will be the largest silicon-based detector ever built.
Read more: home.cern/news/news/ex...
The @cmsexperiment.bsky.social has recently completed the first prototype slice of its innovative High-Granularity Calorimeter (HGCAL), which will be the largest silicon-based detector ever built.
Read more: home.cern/news/news/ex...
Our kind of biscuit tray — but with hexaboards for the future High Granularity Calorimeter (HGCAL), planned for the Hi-Lumi LHC upgrade. The increased granularity of HGCAL will help better distinguish signals from different particles.⚛️
🏆 HGCAL Image of the Month
📸 HGCAL team
#CERN #science #physics
🏆 HGCAL Image of the Month
📸 HGCAL team
#CERN #science #physics
July 24, 2025 at 3:11 PM
Trial assembly of hexagonal silicon modules on a prototype cooling plate!
HGCAL will have around 27000 such modules on 660 copper plates. Each plate carries bi-phase CO2 in embedded pipes for efficient cooling of the modules to -30° C 🥶
🏆 HGCAL Image of the Month
📸 A. David
HGCAL will have around 27000 such modules on 660 copper plates. Each plate carries bi-phase CO2 in embedded pipes for efficient cooling of the modules to -30° C 🥶
🏆 HGCAL Image of the Month
📸 A. David
February 10, 2025 at 9:54 AM
Trial assembly of hexagonal silicon modules on a prototype cooling plate!
HGCAL will have around 27000 such modules on 660 copper plates. Each plate carries bi-phase CO2 in embedded pipes for efficient cooling of the modules to -30° C 🥶
🏆 HGCAL Image of the Month
📸 A. David
HGCAL will have around 27000 such modules on 660 copper plates. Each plate carries bi-phase CO2 in embedded pipes for efficient cooling of the modules to -30° C 🥶
🏆 HGCAL Image of the Month
📸 A. David
Precise drilling of a prototype copper plate for the CMS HGCAL.
These plates will contain cooling pipes and the holes must be located with 0.1mm accuracy to locate and support around 50 hexagonal silicon detector modules on each side.
🏆 HGCAL Image of the Month
📸Sylvaine Pieyre
These plates will contain cooling pipes and the holes must be located with 0.1mm accuracy to locate and support around 50 hexagonal silicon detector modules on each side.
🏆 HGCAL Image of the Month
📸Sylvaine Pieyre
January 28, 2025 at 2:40 PM
Precise drilling of a prototype copper plate for the CMS HGCAL.
These plates will contain cooling pipes and the holes must be located with 0.1mm accuracy to locate and support around 50 hexagonal silicon detector modules on each side.
🏆 HGCAL Image of the Month
📸Sylvaine Pieyre
These plates will contain cooling pipes and the holes must be located with 0.1mm accuracy to locate and support around 50 hexagonal silicon detector modules on each side.
🏆 HGCAL Image of the Month
📸Sylvaine Pieyre
Our CMS physicists at CERN are working on something big: the first prototype slice of HGCAL, the largest silicon-based detector ever built. This is a step in the plan of technical upgrade CMS will undergo starting in 2026.
🏆HGCAL Image of the Month
📸Andre David
🏆HGCAL Image of the Month
📸Andre David
September 22, 2025 at 9:59 AM
Our CMS physicists at CERN are working on something big: the first prototype slice of HGCAL, the largest silicon-based detector ever built. This is a step in the plan of technical upgrade CMS will undergo starting in 2026.
🏆HGCAL Image of the Month
📸Andre David
🏆HGCAL Image of the Month
📸Andre David
Can an HGCAL hexaboard get any more festive than this? 🎁 The CMS Collaboration wishes you happy holidays! 🎉
December 24, 2024 at 5:29 PM
Can an HGCAL hexaboard get any more festive than this? 🎁 The CMS Collaboration wishes you happy holidays! 🎉
The vacuum plate secures 13 types of HGCAL cooling plates for precise machining. The groove enables air evacuation, while the black line indicates the sealing gasket ensuring tightness.
🏆HGCAL Image of the Month
📸Florian Baudette
🏆HGCAL Image of the Month
📸Florian Baudette
October 9, 2025 at 2:32 PM
The vacuum plate secures 13 types of HGCAL cooling plates for precise machining. The groove enables air evacuation, while the black line indicates the sealing gasket ensuring tightness.
🏆HGCAL Image of the Month
📸Florian Baudette
🏆HGCAL Image of the Month
📸Florian Baudette
This is a Tileboard Printed Circuit Board, which will be placed in the CE-H section of HGCAL at the High-Lumi LHC, hosting scintillator tiles, silicon photomultipliers (SiPMs) to detect light from them, and read out electronics🔦
📸Gizem Gul Dincer
🏆HGCAL Image of the Month
📸Gizem Gul Dincer
🏆HGCAL Image of the Month
May 27, 2025 at 1:11 PM
This is a Tileboard Printed Circuit Board, which will be placed in the CE-H section of HGCAL at the High-Lumi LHC, hosting scintillator tiles, silicon photomultipliers (SiPMs) to detect light from them, and read out electronics🔦
📸Gizem Gul Dincer
🏆HGCAL Image of the Month
📸Gizem Gul Dincer
🏆HGCAL Image of the Month
Busy bees at CERN! 🐝
Our physicists are carefully assembling minimal detector blocks based on hexagonal silicon modules.
These will be stacked to build a small test version of the new HGCAL calorimeter for the High‑Luminosity LHC era.
🏆 HGCAL Image of the Month
📸 Andre David
Our physicists are carefully assembling minimal detector blocks based on hexagonal silicon modules.
These will be stacked to build a small test version of the new HGCAL calorimeter for the High‑Luminosity LHC era.
🏆 HGCAL Image of the Month
📸 Andre David
February 2, 2026 at 4:25 PM
Busy bees at CERN! 🐝
Our physicists are carefully assembling minimal detector blocks based on hexagonal silicon modules.
These will be stacked to build a small test version of the new HGCAL calorimeter for the High‑Luminosity LHC era.
🏆 HGCAL Image of the Month
📸 Andre David
Our physicists are carefully assembling minimal detector blocks based on hexagonal silicon modules.
These will be stacked to build a small test version of the new HGCAL calorimeter for the High‑Luminosity LHC era.
🏆 HGCAL Image of the Month
📸 Andre David
Caught in the act!👀😂
Ece is potting cables for the HGCAL cold box at #CERN. This process electrically insulates and mechanically stabilises delicate cable connections, ensuring long-term reliability inside the detector system.
🏆 HGCAL Image of the Month
📸 Alexander Kaminskiy
Ece is potting cables for the HGCAL cold box at #CERN. This process electrically insulates and mechanically stabilises delicate cable connections, ensuring long-term reliability inside the detector system.
🏆 HGCAL Image of the Month
📸 Alexander Kaminskiy
March 6, 2026 at 3:57 PM
Caught in the act!👀😂
Ece is potting cables for the HGCAL cold box at #CERN. This process electrically insulates and mechanically stabilises delicate cable connections, ensuring long-term reliability inside the detector system.
🏆 HGCAL Image of the Month
📸 Alexander Kaminskiy
Ece is potting cables for the HGCAL cold box at #CERN. This process electrically insulates and mechanically stabilises delicate cable connections, ensuring long-term reliability inside the detector system.
🏆 HGCAL Image of the Month
📸 Alexander Kaminskiy
A chilly winter is coming for Tom and Jerry! 🥶
Their namesake cold boxes at Point 5 are getting prepped with their safety system junction boxes. Soon, they'll be chilling the future cassettes of the HGCAL calorimeter to a frosty -35 °C for testing!
🏆 HGCAL Image of the Month
📸 Ebru Simsek
Their namesake cold boxes at Point 5 are getting prepped with their safety system junction boxes. Soon, they'll be chilling the future cassettes of the HGCAL calorimeter to a frosty -35 °C for testing!
🏆 HGCAL Image of the Month
📸 Ebru Simsek
November 7, 2025 at 4:08 PM
A chilly winter is coming for Tom and Jerry! 🥶
Their namesake cold boxes at Point 5 are getting prepped with their safety system junction boxes. Soon, they'll be chilling the future cassettes of the HGCAL calorimeter to a frosty -35 °C for testing!
🏆 HGCAL Image of the Month
📸 Ebru Simsek
Their namesake cold boxes at Point 5 are getting prepped with their safety system junction boxes. Soon, they'll be chilling the future cassettes of the HGCAL calorimeter to a frosty -35 °C for testing!
🏆 HGCAL Image of the Month
📸 Ebru Simsek
This is how the massive steel structure for the new CMS calorimeter, HGCAL, was tested! 👷
Last summer the structure that will house the delicate HGCAL cassettes was assembled in Pakistan and rotated to test its integrity.
📽️ Watch the timelapse: youtu.be/Xs_RxGwwlC0
Last summer the structure that will house the delicate HGCAL cassettes was assembled in Pakistan and rotated to test its integrity.
📽️ Watch the timelapse: youtu.be/Xs_RxGwwlC0
HGCAL Absorber Assembly Test in Taxila, Pakistan
YouTube video by CMS Experiment
youtu.be
January 23, 2026 at 1:49 PM
This is how the massive steel structure for the new CMS calorimeter, HGCAL, was tested! 👷
Last summer the structure that will house the delicate HGCAL cassettes was assembled in Pakistan and rotated to test its integrity.
📽️ Watch the timelapse: youtu.be/Xs_RxGwwlC0
Last summer the structure that will house the delicate HGCAL cassettes was assembled in Pakistan and rotated to test its integrity.
📽️ Watch the timelapse: youtu.be/Xs_RxGwwlC0
When work gets too much... these guys step in! 👷♂️👷♀️
These were too good to pick just one, so here are multiple HGCAL Images of the Month! 🏆
Which one is your favourite?
📸André David
These were too good to pick just one, so here are multiple HGCAL Images of the Month! 🏆
Which one is your favourite?
📸André David
April 16, 2025 at 2:27 PM
When work gets too much... these guys step in! 👷♂️👷♀️
These were too good to pick just one, so here are multiple HGCAL Images of the Month! 🏆
Which one is your favourite?
📸André David
These were too good to pick just one, so here are multiple HGCAL Images of the Month! 🏆
Which one is your favourite?
📸André David
Jasmine working on one of the HGCAL "Hexaboards", following its successful test using a novel system (developed at @tifr.res.in, India) for checking connectivity from delicate bonding pads and the HGCROC processing chips, without touching the bonding pads!
🏆 HGCAL Image of the Month
📸 Shilpi Jain
🏆 HGCAL Image of the Month
📸 Shilpi Jain
June 19, 2025 at 1:39 PM
Jasmine working on one of the HGCAL "Hexaboards", following its successful test using a novel system (developed at @tifr.res.in, India) for checking connectivity from delicate bonding pads and the HGCROC processing chips, without touching the bonding pads!
🏆 HGCAL Image of the Month
📸 Shilpi Jain
🏆 HGCAL Image of the Month
📸 Shilpi Jain
ECAL measures the energies of electrons and photons, whereas HGCAL is a major upgrade of CMS, necessary to maintain excellent calorimetric performance in the detector’s endcaps during #HiLumiLHC operations.
April 28, 2025 at 8:21 AM
ECAL measures the energies of electrons and photons, whereas HGCAL is a major upgrade of CMS, necessary to maintain excellent calorimetric performance in the detector’s endcaps during #HiLumiLHC operations.
The pre-assembly of the first HGCAL endcap absorber structure has now started in Pakistan!
The yellow structure supports the first 13-tonne stainless steel back flange disk, to which 21 more absorber disk layers will be added.
🏆This is HGCAL's Image of the Month
📸Muhammad Asif Naseer
The yellow structure supports the first 13-tonne stainless steel back flange disk, to which 21 more absorber disk layers will be added.
🏆This is HGCAL's Image of the Month
📸Muhammad Asif Naseer
December 19, 2024 at 11:00 AM
The pre-assembly of the first HGCAL endcap absorber structure has now started in Pakistan!
The yellow structure supports the first 13-tonne stainless steel back flange disk, to which 21 more absorber disk layers will be added.
🏆This is HGCAL's Image of the Month
📸Muhammad Asif Naseer
The yellow structure supports the first 13-tonne stainless steel back flange disk, to which 21 more absorber disk layers will be added.
🏆This is HGCAL's Image of the Month
📸Muhammad Asif Naseer
I'm recruiting a PhD student to work on CMS, with a focus on substructure/BSM in four-top final states/CMS HGCAL: inspirehep.net/jobs/2921389 (all details in link)
May 25, 2025 at 5:22 PM
I'm recruiting a PhD student to work on CMS, with a focus on substructure/BSM in four-top final states/CMS HGCAL: inspirehep.net/jobs/2921389 (all details in link)
This is a special device that our scientists are using to construct the Scintillator Tile modules of the HGCAL detector. These photo sensors may look big here, but in reality they can easily fit on the tip of your pinky finger.
🏆 HGCAL's Image of the Month
📸 Daria Selivanova
🏆 HGCAL's Image of the Month
📸 Daria Selivanova
November 22, 2024 at 3:46 PM
This is a special device that our scientists are using to construct the Scintillator Tile modules of the HGCAL detector. These photo sensors may look big here, but in reality they can easily fit on the tip of your pinky finger.
🏆 HGCAL's Image of the Month
📸 Daria Selivanova
🏆 HGCAL's Image of the Month
📸 Daria Selivanova
Here we see groups of visitors on a tour of the @cmsexperiment.bsky.social labs.
The groups visited the electromagnetic calorimeter (ECAL) and high-granularity calorimeter (HGCAL) labs, where new pieces of the CMS detector are created to cope with the higher number of collisions at #HiLumiLHC.
The groups visited the electromagnetic calorimeter (ECAL) and high-granularity calorimeter (HGCAL) labs, where new pieces of the CMS detector are created to cope with the higher number of collisions at #HiLumiLHC.
April 28, 2025 at 8:21 AM
Here we see groups of visitors on a tour of the @cmsexperiment.bsky.social labs.
The groups visited the electromagnetic calorimeter (ECAL) and high-granularity calorimeter (HGCAL) labs, where new pieces of the CMS detector are created to cope with the higher number of collisions at #HiLumiLHC.
The groups visited the electromagnetic calorimeter (ECAL) and high-granularity calorimeter (HGCAL) labs, where new pieces of the CMS detector are created to cope with the higher number of collisions at #HiLumiLHC.
I'm recruiting a PhD student to work on CMS, with a focus on substructure/BSM in four-top final states/CMS HGCAL: inspirehep.net/jobs/2921389 (all details in link)
May 17, 2025 at 5:22 PM
I'm recruiting a PhD student to work on CMS, with a focus on substructure/BSM in four-top final states/CMS HGCAL: inspirehep.net/jobs/2921389 (all details in link)
Look at tiny hexaboards getting tested!🔬
These are building blocks of the silicon section of CMS high-granularity calorimeter(HGCAL). It will be installed during the upgrade of the detector for Hi-Lumi LHC later this decade, when CMS will have more collision events to capture.
📹: Axel & Gizem
These are building blocks of the silicon section of CMS high-granularity calorimeter(HGCAL). It will be installed during the upgrade of the detector for Hi-Lumi LHC later this decade, when CMS will have more collision events to capture.
📹: Axel & Gizem
July 9, 2025 at 3:24 PM
Look at tiny hexaboards getting tested!🔬
These are building blocks of the silicon section of CMS high-granularity calorimeter(HGCAL). It will be installed during the upgrade of the detector for Hi-Lumi LHC later this decade, when CMS will have more collision events to capture.
📹: Axel & Gizem
These are building blocks of the silicon section of CMS high-granularity calorimeter(HGCAL). It will be installed during the upgrade of the detector for Hi-Lumi LHC later this decade, when CMS will have more collision events to capture.
📹: Axel & Gizem
This photo was taken at our @CMSexperiment HGCAL lab at DESY @desy.bsky.social , it is one of the final testing boards that we are working with before we start actually building the detector that needs to be installed in the LHC in a few years ⏳
This is a special device that our scientists are using to construct the Scintillator Tile modules of the HGCAL detector. These photo sensors may look big here, but in reality they can easily fit on the tip of your pinky finger.
🏆 HGCAL's Image of the Month
📸 Daria Selivanova
🏆 HGCAL's Image of the Month
📸 Daria Selivanova
November 23, 2024 at 10:55 AM
This photo was taken at our @CMSexperiment HGCAL lab at DESY @desy.bsky.social , it is one of the final testing boards that we are working with before we start actually building the detector that needs to be installed in the LHC in a few years ⏳
Want to know more about what particle physics is like, told by others other than only me? Our group's Instagram account gives a voice to a very wide group of scientists
For example, today there is a cool CMS HGCAL upgrade assembly robot!
www.instagram.com/reel/DTKSgvs...
For example, today there is a cool CMS HGCAL upgrade assembly robot!
www.instagram.com/reel/DTKSgvs...
January 6, 2026 at 11:27 AM
Want to know more about what particle physics is like, told by others other than only me? Our group's Instagram account gives a voice to a very wide group of scientists
For example, today there is a cool CMS HGCAL upgrade assembly robot!
www.instagram.com/reel/DTKSgvs...
For example, today there is a cool CMS HGCAL upgrade assembly robot!
www.instagram.com/reel/DTKSgvs...
oops something went wrong there. I was referring to Kuan-Yu Lin's work on the CMS HGCAL, see also www.instagram.com/p/Daw9QCoIsN...
Particle physics by CMS experiment at DESY on Instagram: "Meet Dr Kuan-Yu Lin 🔬, a postdoc working on CMS at DESY who is attending the NDIP: New Developments in Photodetection conference. Kuan-Yu is p...
46 likes, 3 comments - cmsatdesy on July 14, 2026: "Meet Dr Kuan-Yu Lin 🔬, a postdoc working on CMS at DESY who is attending the NDIP: New Developments in Photodetection conference. Kuan-Yu is present...
www.instagram.com
July 14, 2026 at 7:46 PM
oops something went wrong there. I was referring to Kuan-Yu Lin's work on the CMS HGCAL, see also www.instagram.com/p/Daw9QCoIsN...