The microbeam was developed in:
Oxford, U.K.
(red spot)

An alphabetical list (according to the cities) is given below:
(blue spots)

ATOMKI, Debrecen, Hungary KFUPM, Dhahran, Saudi Arabia CCCM, Hyderabad, India ARL, Lafayette, Louisiana, USA INFN LNL, Legnaro, Italy ITN, Sacavém, Lisbon, Portugal LLNL, Livermoore, CA, USA MIC, Ljubljana, Slovenia Louvre, Paris, France

NAC, Faure, South Africa CNA, Sevilla, Spain Schonland, South Africa National University of Singapore NIRS, Tokyo, Japan Uppsala, Sweden Ruder Boscovic Institute, Zagreb, Croatia Are you interested in having one?