Marco Kraan
@mjkraan.bsky.social
Curious Nikhef engineer who likes to show how beautiful the mechanics behind science can be
A week ago, on Thursday, October 30, 2025 @nikhef.bsky.social (National Institute for Subatomic Physics) celebrated its 50th anniversary with 250 participants, six external speakers, a panel discussion, an inspiring Nikhef video about Science & Society and the six former directors at the Rode Hoed:
November 5, 2025 at 10:55 AM
A week ago, on Thursday, October 30, 2025 @nikhef.bsky.social (National Institute for Subatomic Physics) celebrated its 50th anniversary with 250 participants, six external speakers, a panel discussion, an inspiring Nikhef video about Science & Society and the six former directors at the Rode Hoed:
See how well the new artwork by Jop Vissers Vorstenbosch is visible from outside @nikhef.bsky.social (National Institute for Subatomic Physics)
October 23, 2025 at 9:52 AM
See how well the new artwork by Jop Vissers Vorstenbosch is visible from outside @nikhef.bsky.social (National Institute for Subatomic Physics)
Our new @nikhef.bsky.social entrance is enriched last week with a spectacular artwork, 'Improbable super event' by Jop Vissers Vorstenbosch.
These are eight transparent paintings of particle tracks from the ALICE experiment at @cern.bsky.social and visualizations of two colliding black holes
These are eight transparent paintings of particle tracks from the ALICE experiment at @cern.bsky.social and visualizations of two colliding black holes
October 20, 2025 at 9:48 AM
Our new @nikhef.bsky.social entrance is enriched last week with a spectacular artwork, 'Improbable super event' by Jop Vissers Vorstenbosch.
These are eight transparent paintings of particle tracks from the ALICE experiment at @cern.bsky.social and visualizations of two colliding black holes
These are eight transparent paintings of particle tracks from the ALICE experiment at @cern.bsky.social and visualizations of two colliding black holes
The day after the unveiling of Jop Vissers Vorstenbosch's artwork in the entrance hall of @nikhef.bsky.social (National Institute for Subatomic Physics), Jop is still 'present' on video 😊
October 17, 2025 at 7:46 AM
The day after the unveiling of Jop Vissers Vorstenbosch's artwork in the entrance hall of @nikhef.bsky.social (National Institute for Subatomic Physics), Jop is still 'present' on video 😊
Today at 4:30 PM, the unveiling of Jop Vissers Vorstenbosch's artwork in the entrance hall of @nikhef.bsky.social (National Institute for Subatomic Physics): An incredibly super event
October 16, 2025 at 11:27 AM
Today at 4:30 PM, the unveiling of Jop Vissers Vorstenbosch's artwork in the entrance hall of @nikhef.bsky.social (National Institute for Subatomic Physics): An incredibly super event
Preparations at the entree of @nikhef.bsky.social (National Institute for Subatomic Physics) are underway before artist Jop Vissers Vorstenbosch install his new (tuned to Nikhef) Artwork in early October.
September 26, 2025 at 12:10 PM
Preparations at the entree of @nikhef.bsky.social (National Institute for Subatomic Physics) are underway before artist Jop Vissers Vorstenbosch install his new (tuned to Nikhef) Artwork in early October.
Watch the 'aftermovie' of the @nikhef.bsky.social (National Institute for Subatomic Physics) 50th anniversary party 🥳, held 3 months ago on June 17, 2025:
Catering & movie organized by Absolute Delicious
absolute-delicious.nl
Catering & movie organized by Absolute Delicious
absolute-delicious.nl
September 26, 2025 at 9:06 AM
Watch the 'aftermovie' of the @nikhef.bsky.social (National Institute for Subatomic Physics) 50th anniversary party 🥳, held 3 months ago on June 17, 2025:
Catering & movie organized by Absolute Delicious
absolute-delicious.nl
Catering & movie organized by Absolute Delicious
absolute-delicious.nl
Check out this unique optical table, the so-called 'In-vacuum Seismic Isolation Optical Table' at @nikhef.bsky.social
The platform is kept quiet by Active Noise Cancellation which can break through the wall of noise in which gravitational wave signals are buried @vuamsterdam.bsky.social
The platform is kept quiet by Active Noise Cancellation which can break through the wall of noise in which gravitational wave signals are buried @vuamsterdam.bsky.social
August 7, 2025 at 1:52 PM
Check out this unique optical table, the so-called 'In-vacuum Seismic Isolation Optical Table' at @nikhef.bsky.social
The platform is kept quiet by Active Noise Cancellation which can break through the wall of noise in which gravitational wave signals are buried @vuamsterdam.bsky.social
The platform is kept quiet by Active Noise Cancellation which can break through the wall of noise in which gravitational wave signals are buried @vuamsterdam.bsky.social
The third floor houses the @nikhef.bsky.social theory group 👨🎓 , as can be seen from what is written on the three chalkboards
August 5, 2025 at 9:18 AM
The third floor houses the @nikhef.bsky.social theory group 👨🎓 , as can be seen from what is written on the three chalkboards
See the large (6.5 x 2.5m) Project Wall Poster in our @nikhef.bsky.social director's (Jorgen D'Hondt) room.
ATLAS (@cern.bsky.social) detector with an 'Observation of VVZ production' event display. Einstein Telescope detector and the Pierre Auger Observatory. @km3net.bsky.social neutrino detector
ATLAS (@cern.bsky.social) detector with an 'Observation of VVZ production' event display. Einstein Telescope detector and the Pierre Auger Observatory. @km3net.bsky.social neutrino detector
August 4, 2025 at 8:34 AM
See the large (6.5 x 2.5m) Project Wall Poster in our @nikhef.bsky.social director's (Jorgen D'Hondt) room.
ATLAS (@cern.bsky.social) detector with an 'Observation of VVZ production' event display. Einstein Telescope detector and the Pierre Auger Observatory. @km3net.bsky.social neutrino detector
ATLAS (@cern.bsky.social) detector with an 'Observation of VVZ production' event display. Einstein Telescope detector and the Pierre Auger Observatory. @km3net.bsky.social neutrino detector
Status of project @cern.bsky.social ATLAS ITK End-Cap at @nikhef.bsky.social
July 7, 2025 at 12:03 PM
Status of project @cern.bsky.social ATLAS ITK End-Cap at @nikhef.bsky.social
Watch 50 years of @nikhef.bsky.social history (highlights) in 15 shorts of 1 minute:
www.youtube.com/playlist?lis...
www.youtube.com/playlist?lis...
June 24, 2025 at 8:16 AM
Watch 50 years of @nikhef.bsky.social history (highlights) in 15 shorts of 1 minute:
www.youtube.com/playlist?lis...
www.youtube.com/playlist?lis...
On June 17th, 2025 @nikhef.bsky.social celebrated its 50th anniversary 🥳
Since 2016 Nikhef has been working on the @cern.bsky.social ATLAS Upgrade Inner Tracker (ITk) Strip End-cap. Two super rigid CF structures are assembled with a precise gluing jig in the Nikhef clean-room.
Since 2016 Nikhef has been working on the @cern.bsky.social ATLAS Upgrade Inner Tracker (ITk) Strip End-cap. Two super rigid CF structures are assembled with a precise gluing jig in the Nikhef clean-room.
June 23, 2025 at 8:54 AM
On June 17th, 2025 @nikhef.bsky.social celebrated its 50th anniversary 🥳
Since 2016 Nikhef has been working on the @cern.bsky.social ATLAS Upgrade Inner Tracker (ITk) Strip End-cap. Two super rigid CF structures are assembled with a precise gluing jig in the Nikhef clean-room.
Since 2016 Nikhef has been working on the @cern.bsky.social ATLAS Upgrade Inner Tracker (ITk) Strip End-cap. Two super rigid CF structures are assembled with a precise gluing jig in the Nikhef clean-room.
This week on June 17th @nikhef.bsky.social celebrated its 50th anniversary 🥳
Since 2015, Nikhef worked on the Upgrade of the @cern.bsky.social ALICE Outer Barrel (OB) Inner Tracking System (ITS). The ITS Module has 14 pixel chips which measures each 30x15mm with a thickness of only about 0.25mm
Since 2015, Nikhef worked on the Upgrade of the @cern.bsky.social ALICE Outer Barrel (OB) Inner Tracking System (ITS). The ITS Module has 14 pixel chips which measures each 30x15mm with a thickness of only about 0.25mm
June 20, 2025 at 9:03 AM
This week on June 17th @nikhef.bsky.social celebrated its 50th anniversary 🥳
Since 2015, Nikhef worked on the Upgrade of the @cern.bsky.social ALICE Outer Barrel (OB) Inner Tracking System (ITS). The ITS Module has 14 pixel chips which measures each 30x15mm with a thickness of only about 0.25mm
Since 2015, Nikhef worked on the Upgrade of the @cern.bsky.social ALICE Outer Barrel (OB) Inner Tracking System (ITS). The ITS Module has 14 pixel chips which measures each 30x15mm with a thickness of only about 0.25mm
@nikhef.bsky.social 50 was a very successful party yesterday!
June 18, 2025 at 5:09 PM
@nikhef.bsky.social 50 was a very successful party yesterday!
Yesterday on June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳
Since 2015 NIKHEF has been building the @km3net.bsky.social detector. Each Digital Optical Module (DOM) contains 31 PhotoMultiplier Tubes (PMTs). Deployment in the Mediterranean Sea is at a depth of 2.5 - 3.5 km.
Since 2015 NIKHEF has been building the @km3net.bsky.social detector. Each Digital Optical Module (DOM) contains 31 PhotoMultiplier Tubes (PMTs). Deployment in the Mediterranean Sea is at a depth of 2.5 - 3.5 km.
June 18, 2025 at 12:49 PM
Yesterday on June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳
Since 2015 NIKHEF has been building the @km3net.bsky.social detector. Each Digital Optical Module (DOM) contains 31 PhotoMultiplier Tubes (PMTs). Deployment in the Mediterranean Sea is at a depth of 2.5 - 3.5 km.
Since 2015 NIKHEF has been building the @km3net.bsky.social detector. Each Digital Optical Module (DOM) contains 31 PhotoMultiplier Tubes (PMTs). Deployment in the Mediterranean Sea is at a depth of 2.5 - 3.5 km.
Today, June 17th @nikhef.bsky.social celebrates its 50th anniversary 🥳
Since 2015 NIKHEF has been building the @km3net.bsky.social detector. Each Digital Optical Module is 17 inches in diameter and contains 31 PhotoMultiplier Tubes. Deployment is in the Mediterranean Sea at a depth of 2.5-3.5 km.
Since 2015 NIKHEF has been building the @km3net.bsky.social detector. Each Digital Optical Module is 17 inches in diameter and contains 31 PhotoMultiplier Tubes. Deployment is in the Mediterranean Sea at a depth of 2.5-3.5 km.
June 17, 2025 at 8:04 AM
Today, June 17th @nikhef.bsky.social celebrates its 50th anniversary 🥳
Since 2015 NIKHEF has been building the @km3net.bsky.social detector. Each Digital Optical Module is 17 inches in diameter and contains 31 PhotoMultiplier Tubes. Deployment is in the Mediterranean Sea at a depth of 2.5-3.5 km.
Since 2015 NIKHEF has been building the @km3net.bsky.social detector. Each Digital Optical Module is 17 inches in diameter and contains 31 PhotoMultiplier Tubes. Deployment is in the Mediterranean Sea at a depth of 2.5-3.5 km.
Tomorrow June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳, great preparations are underway for the party
June 16, 2025 at 1:47 PM
Tomorrow June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳, great preparations are underway for the party
Tomorrow on June 17th @nikhef.bsky.social celebrates its 50th anniversary 🥳
NIKHEF was since 2010 in charge of the design and production of 5 MultiSAS systems, for Advanced Virgo, an upgrade of the Virgo interferometer with three kilometer long arms located near Pisa in Italy.
NIKHEF was since 2010 in charge of the design and production of 5 MultiSAS systems, for Advanced Virgo, an upgrade of the Virgo interferometer with three kilometer long arms located near Pisa in Italy.
June 16, 2025 at 8:43 AM
Tomorrow on June 17th @nikhef.bsky.social celebrates its 50th anniversary 🥳
NIKHEF was since 2010 in charge of the design and production of 5 MultiSAS systems, for Advanced Virgo, an upgrade of the Virgo interferometer with three kilometer long arms located near Pisa in Italy.
NIKHEF was since 2010 in charge of the design and production of 5 MultiSAS systems, for Advanced Virgo, an upgrade of the Virgo interferometer with three kilometer long arms located near Pisa in Italy.
On June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳
Nikhef was in charge of the design and production of crucial hardware components for the vacuum, injection, and detection subsystems of Advanced Virgo, an upgrade of the Virgo interferometer located near Pisa (Italy).
Nikhef was in charge of the design and production of crucial hardware components for the vacuum, injection, and detection subsystems of Advanced Virgo, an upgrade of the Virgo interferometer located near Pisa (Italy).
June 14, 2025 at 7:50 PM
On June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳
Nikhef was in charge of the design and production of crucial hardware components for the vacuum, injection, and detection subsystems of Advanced Virgo, an upgrade of the Virgo interferometer located near Pisa (Italy).
Nikhef was in charge of the design and production of crucial hardware components for the vacuum, injection, and detection subsystems of Advanced Virgo, an upgrade of the Virgo interferometer located near Pisa (Italy).
On June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳
Since 1999, Nikhef is involved in the VErtex LOcator (VELO) of @lhcb.bsky.social.
As a spin-off of the successful VELO CO2 cooling Nikhef built the CO2 cooling system of the Alpha Magnetic Spectrometer for at the ISS.
Since 1999, Nikhef is involved in the VErtex LOcator (VELO) of @lhcb.bsky.social.
As a spin-off of the successful VELO CO2 cooling Nikhef built the CO2 cooling system of the Alpha Magnetic Spectrometer for at the ISS.
June 12, 2025 at 8:42 AM
On June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳
Since 1999, Nikhef is involved in the VErtex LOcator (VELO) of @lhcb.bsky.social.
As a spin-off of the successful VELO CO2 cooling Nikhef built the CO2 cooling system of the Alpha Magnetic Spectrometer for at the ISS.
Since 1999, Nikhef is involved in the VErtex LOcator (VELO) of @lhcb.bsky.social.
As a spin-off of the successful VELO CO2 cooling Nikhef built the CO2 cooling system of the Alpha Magnetic Spectrometer for at the ISS.
On June 17th, 2025 @nikhef.bsky.social (National Institute for Subatomic Physics) celebrates its 50th anniversary 🥳
Part 8:
Since @cern.bsky.social built the Large Hadron Collider (LHC) NIKHEF is involved in the ALICE, @atlasexperiment.bsky.social and @lhcb.bsky.social experiments.
Part 8:
Since @cern.bsky.social built the Large Hadron Collider (LHC) NIKHEF is involved in the ALICE, @atlasexperiment.bsky.social and @lhcb.bsky.social experiments.
June 10, 2025 at 9:46 AM
On June 17th, 2025 @nikhef.bsky.social (National Institute for Subatomic Physics) celebrates its 50th anniversary 🥳
Part 8:
Since @cern.bsky.social built the Large Hadron Collider (LHC) NIKHEF is involved in the ALICE, @atlasexperiment.bsky.social and @lhcb.bsky.social experiments.
Part 8:
Since @cern.bsky.social built the Large Hadron Collider (LHC) NIKHEF is involved in the ALICE, @atlasexperiment.bsky.social and @lhcb.bsky.social experiments.
On June 17th, 2025 @nikhef.bsky.social Institute celebrates its 50th anniversary 🥳
In 2008 @cern.bsky.social converts LEP into the LHC, an accelerator with superconducting magnets.
NIKHEF is involved in 3 major experiments: @lhcb.bsky.social, @atlasexperiment.bsky.social and ALICE:
In 2008 @cern.bsky.social converts LEP into the LHC, an accelerator with superconducting magnets.
NIKHEF is involved in 3 major experiments: @lhcb.bsky.social, @atlasexperiment.bsky.social and ALICE:
June 5, 2025 at 6:56 AM
On June 17th, 2025 @nikhef.bsky.social Institute celebrates its 50th anniversary 🥳
In 2008 @cern.bsky.social converts LEP into the LHC, an accelerator with superconducting magnets.
NIKHEF is involved in 3 major experiments: @lhcb.bsky.social, @atlasexperiment.bsky.social and ALICE:
In 2008 @cern.bsky.social converts LEP into the LHC, an accelerator with superconducting magnets.
NIKHEF is involved in 3 major experiments: @lhcb.bsky.social, @atlasexperiment.bsky.social and ALICE:
On June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳
In 1999, NIKHEF starts research in Astroparticle physics at the neutrino telescope ANTARES in the Mediterranean Sea.
In 1999, NIKHEF starts research in Astroparticle physics at the neutrino telescope ANTARES in the Mediterranean Sea.
June 3, 2025 at 9:00 AM
On June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳
In 1999, NIKHEF starts research in Astroparticle physics at the neutrino telescope ANTARES in the Mediterranean Sea.
In 1999, NIKHEF starts research in Astroparticle physics at the neutrino telescope ANTARES in the Mediterranean Sea.
On June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳
In 1998 when the accelerator MEA-AmPS stopped the sections K&H were integrated. The institute name changed to: National Institute for Subatomic Physics.
NIKHEF will built at DESY detectors for the ZEUS & HERMES experiments.
In 1998 when the accelerator MEA-AmPS stopped the sections K&H were integrated. The institute name changed to: National Institute for Subatomic Physics.
NIKHEF will built at DESY detectors for the ZEUS & HERMES experiments.
May 30, 2025 at 7:27 AM
On June 17th, 2025 @nikhef.bsky.social celebrates its 50th anniversary 🥳
In 1998 when the accelerator MEA-AmPS stopped the sections K&H were integrated. The institute name changed to: National Institute for Subatomic Physics.
NIKHEF will built at DESY detectors for the ZEUS & HERMES experiments.
In 1998 when the accelerator MEA-AmPS stopped the sections K&H were integrated. The institute name changed to: National Institute for Subatomic Physics.
NIKHEF will built at DESY detectors for the ZEUS & HERMES experiments.