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Research output per year

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Personal profile

Research interests

My core research focuses on detector development for future particle physics experiments and its spin-offs, mainly in the fields of nuclear waste management, radiation measurements, radiotherapy and homeland security. I focus on the design, development and characterisation of novel radiation detectors, the accompanying data analysis and radiation damage effects in detectors and electronics. 

I have been working on the development of sensors aimed towards the Linear Collider with strong emphasis on Monolithic Active Pixel Sensors (MAPS) based systems. Using the knowledge and experience from particle physics, we are now developing a system for radiotherapy verification. We have shown treatment beam shape measurements with most excellent precision and invented a completely novel way for real time dosimetry as well.

In particle physics, I focus on the development of a new Velo detector, the innermost and most important detector of the LHCb experiment at CERN. I am also involved in the detector development for the mu3e experiment that will be built at PSI and am  joining the CEPC effort.

Over the years, I developed a strong interest in cosmic ray tomography for nuclear waste characterisation and homeland security. Inintially we started to develop a scanner to detect lumps of high-Z material hidden in shipping containers using cosmic rays to prevent nuclear devices being smuggled into the country. The technique we developed using cosmic radiation is amongst others also applicable for nuclear waste management. We built detectors and have developed algorithms to identify the material and measure the size of small objects embedded in concrete. Furthermore, we are now able to find air bubbles in concrete as well. Currently, I am the work package manager for the cosmic ray tomography work package in the H2020 funded CHANCE project. CHANCE is aimed at characterisation of conditioned nuclear waste. Muon tomography is one of the core work packages. Furthermore, we are developing the technique for civil nuclear engineering inspections.

External positions

Visiting Professor , University of South China

28 Nov 2018 → …

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Projects

CHANCE JA11d

Velthuis, J. J.

1/06/1731/05/21

Project: Research, Parent

Research Output

  • 155 Article (Academic Journal)
  • 2 Conference Contribution (Conference Proceeding)
  • 1 Patent

Amplitude analysis of the B+ →π+π+π- decay

LHCb Collaboration, 21 Jan 2020, In : Physical Review D. 101, 1, 46 p., 012006.

Research output: Contribution to journalArticle (Academic Journal)

Open Access
File
  • 2 Citations (Scopus)
    20 Downloads (Pure)

    A novel approach to contamination suppression in transmission detectors for radiotherapy

    Beck, L., Velthuis, J. J., De Sio, C., Hugtenburg, RI. P., Pritchard, J. L. & Page, R. F., 28 Apr 2020, (Accepted/In press) In : IEEE Transactions on Radiation and Plasma Medical Sciences.

    Research output: Contribution to journalArticle (Academic Journal)

  • Nuclear security and Somalia

    Herring, E., Ismail, L., Scott, T. B. & Velthuis, J. J., 21 Feb 2020, In : Global Security: Health, Science and Policy. 5, 1, 16 p.

    Research output: Contribution to journalArticle (Academic Journal)

    Open Access
    File
  • 22 Downloads (Pure)

    Activities

    • 3 Membership of external research organisation

    LHCb-UK (External organisation)

    Jaap J Velthuis (Contributor)

    1 Sep 2013 → …

    Activity: Membership typesMembership of external research organisation

    LHCb (External organisation)

    Jaap J Velthuis (Contributor)

    1 Sep 2009 → …

    Activity: Membership typesMembership of external research organisation

    European Organization for Nuclear Research (External organisation)

    Jaap J Velthuis (Member)

    6 Jan 1996 → …

    Activity: Membership typesMembership of external research organisation

    Thesis

    Imaging and Material Identification of Nuclear Waste with Muon Scattering Tomography

    Author: Frazao, L., 23 Jan 2019

    Supervisor: Velthuis, J. (Supervisor)

    Student thesis: Doctoral ThesisDoctor of Philosophy (PhD)

    File

    Spatial Resolution Studies for the LHCb VELO Upgrade

    Author: Buchanan, E., 23 Jan 2019

    Supervisor: Velthuis, J. (Supervisor)

    Student thesis: Doctoral ThesisDoctor of Philosophy (PhD)

    File