Calibration and Performance Tests of Detectors for Laser-Accelerated Protons
| Autor: | Filomeno Sanchez, M. C. Jiménez-Ramos, S. Sanchez, A. Iborra, Pablo Conde, María José Rodríguez-Álvarez, J. García López, L. F. Vidal, Begoña Fernández, Liczandro Hernandez, E. Crespo, J. P. Rigla, P. Bellido, Michael Seimetz, Antonio González, Jose M. Benlloch, Antonio Soriano, Laura Moliner |
|---|---|
| Přispěvatelé: | European Commission, Ministerio de Economía y Competitividad (España), Generalitat Valenciana, Consejo Superior de Investigaciones Científicas (España) |
| Rok vydání: | 2015 |
| Předmět: |
Physics
Nuclear and High Energy Physics Photomultiplier Proton business.industry Detector Particle beam measurements Scintillator Laser law.invention Organic scintillators Optics Nuclear Energy and Engineering law Scintillation counter Proton detectors Physics::Accelerator Physics Electrical and Electronic Engineering MATEMATICA APLICADA business Optical filter Beam (structure) |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| ISSN: | 1558-1578 0018-9499 |
| DOI: | 10.1109/tns.2015.2480682 |
| Popis: | We present the calibration and performance tests carried out with two detectors for intense proton pulses accelerated by lasers. Most of the procedures were realized with proton beams of 0.46-5.60 MeV from a tandem accelerator. One approach made use of radiochromic films, for which we calibrated the relation between optical density and energy deposition over more than three orders of magnitude. The validity of these results and of our analysis algorithms has been confirmed by controlled irradiation of film stacks and reconstruction of the total beam charge for strongly non-uniform beam profiles. For the spectral analysis of protons from repeated laser shots, we have designed an online monitor based on a plastic scintillator. The resulting signal from a photomultiplier directly measured on a fast oscilloscope is especially useful for time-of-flight applications. Variable optical filters allow for suppression of saturation and an extension of the dynamic range. With pulsed proton beams we have tested the detector response to a wide range of beam intensities from single particles to 3 ×105 protons per 100 ns time interval. Project funded by the Spanish Ministry of Economy and Competitiveness and co-funded with FEDER's funds within the INNPACTO 2011 program under Grant No. IPT-2011-0862-900000. This work was supported by the Spanish Plan Nacional de Investigacion Cientifica, Desarrollo e Innovacion Tecnologica (I+D+i) under Grant No. TEC 2013-48036-C3-1-R and the Valencian Local Government under Grants PROMETEOII/2013/010 and ISIC 2011/013. The work of A. J. Gonzalez is financed by CSIC with a JAE-Doc contract under Junta de Ampliacion de Estudios program, cofinanced by the European Social Fund. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|