The accelerators activities of the LAL are diversified, and treat as much experimental aspects as theoretical ones. These activities approach the linear or circular accelerators, of high or low energy, in fundamental or application purpose. Injectors, diagnoses, study of structures HF (couplers, modulators, klystrons) and the technologies associated with the studies of surfaces contribute to the development and to the preservation of the technical skills "accelerators" within the LAL.
All these activities articulate within the Accelerators Department among which 2 main pillars are : the Service of Studies and Realizations of Accelerators and groups it of research in physics of accelerators. These are completed by agents of the other services (IT, mechanical, SILS) and various researchers and teachers-researchers of the laboratory.