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1. First production of X-rays at the ThomX high-intensity Compton source

Author

Jacquet, M, Alexandre, P, Alkadi, M, Alves, M, Amer, M, Amoudry, L, Auguste, D, Babigeon, J, Balcou, P, Baltazar, M, Benabderrahmane, C, el Fekih, R, Benoit, A, Berteaud, P, Biagini, M, Blin, A, Bobault, S, Bonanzingamarco, M, Bonenfant, J, Bonis, J, Bouanani, Y, Bouaziz, S, Bouvet, F, Bravin, A, Bruni, C, Bruyere, C, Bzyl, H, Cassinari, L, Cassou, K, Cayla, J, Chabaud, T, Chaikovska, I, Chance, S, Chapelle, C, Chaumat, V, Chiche, R, Cobessi, A, Cormier, E, Cornebise, P, Couprie, M, Cuoq, R, Dalifard, O, Degallaix, J, Delerue, N, Del Net, W, Diaz, A, Dietrich, Y, Diop, M, Dorkel, R, Douillet, D, Drebot, I, Dugal, J, Dupraz, K, Dupuy, E, El Ajjouri, M, El Kamchi, N, El Khaldi, M, Elleaume, H, Ergenlik, E, Estève, F, Favier, P, Fernandez, M, Gamelin, A, Garaut, J, Garolfi, L, Gauron, P, Gauthier, F, Girault, P, Gonnin, A, Grasset, D, Guerard, E, Guler, H, Haissinski, J, Hazemann, J, Helder, D, Herbeaux, C, Herry, E, Hodeau, J, Horodynski, J, Hubert, N, Iaquaniello, G, Jacquet, P, Jeantet, P, Jehanno, D, Jules, E, Kapoujyan, G, Kubytskyi, V, Labat, M, Labaye, F, Lacipière, J, Lacroix, M, Lahéra, E, Langlet, M, Lebarillec, T, Ledu, J, Le Duc, G, Le Guidec, D, Leluan, B, Lepercq, P, Lestrade, A, Jacquet M., Alexandre P., Alkadi M., Alves M., Amer M., Amoudry L., Auguste D., Babigeon J. L., Balcou P., Baltazar M., Benabderrahmane C., el Fekih R. B., Benoit A., Berteaud P., Biagini M., Blin A., Bobault S., Bonanzingamarco M., Bonenfant J., Bonis J., Bouanani Y., Bouaziz S., Bouvet F., Bravin A., Bruni C., Bruyere C., Bzyl H., Cassinari L., Cassou K., Cayla J. N., Chabaud T., Chaikovska I., Chance S., Chapelle C., Chaumat V., Chiche R., Cobessi A., Cormier E., Cornebise P., Couprie M. E., Cuoq R., Dalifard O., Degallaix J., Delerue N., Del Net W., Diaz A., Dietrich Y., Diop M., Dorkel R., Douillet D., Drebot I., Dugal J. P., Dupraz K., Dupuy E., El Ajjouri M., El Kamchi N., El Khaldi M., Elleaume H., Ergenlik E., Estève F., Favier P., Fernandez M., Gamelin A., Garaut J. F., Garolfi L., Gauron P., Gauthier F., Girault P., Gonnin A., Grasset D., Guerard E., Guler H., Haissinski J., Hazemann J. L., Helder D., Herbeaux C., Herry E., Hodeau J. L., Horodynski J. M., Hubert N., Iaquaniello G., Jacquet P., Jeantet P., Jehanno D., Jules E., Kapoujyan G., Kubytskyi V., Labat M., Labaye F., Lacipière J., Lacroix M., Lahéra E., Langlet M., Lebarillec T., Ledu J. F., Le Duc G., Le Guidec D., Leluan B., Lepercq P., Lestrade A., Jacquet, M, Alexandre, P, Alkadi, M, Alves, M, Amer, M, Amoudry, L, Auguste, D, Babigeon, J, Balcou, P, Baltazar, M, Benabderrahmane, C, el Fekih, R, Benoit, A, Berteaud, P, Biagini, M, Blin, A, Bobault, S, Bonanzingamarco, M, Bonenfant, J, Bonis, J, Bouanani, Y, Bouaziz, S, Bouvet, F, Bravin, A, Bruni, C, Bruyere, C, Bzyl, H, Cassinari, L, Cassou, K, Cayla, J, Chabaud, T, Chaikovska, I, Chance, S, Chapelle, C, Chaumat, V, Chiche, R, Cobessi, A, Cormier, E, Cornebise, P, Couprie, M, Cuoq, R, Dalifard, O, Degallaix, J, Delerue, N, Del Net, W, Diaz, A, Dietrich, Y, Diop, M, Dorkel, R, Douillet, D, Drebot, I, Dugal, J, Dupraz, K, Dupuy, E, El Ajjouri, M, El Kamchi, N, El Khaldi, M, Elleaume, H, Ergenlik, E, Estève, F, Favier, P, Fernandez, M, Gamelin, A, Garaut, J, Garolfi, L, Gauron, P, Gauthier, F, Girault, P, Gonnin, A, Grasset, D, Guerard, E, Guler, H, Haissinski, J, Hazemann, J, Helder, D, Herbeaux, C, Herry, E, Hodeau, J, Horodynski, J, Hubert, N, Iaquaniello, G, Jacquet, P, Jeantet, P, Jehanno, D, Jules, E, Kapoujyan, G, Kubytskyi, V, Labat, M, Labaye, F, Lacipière, J, Lacroix, M, Lahéra, E, Langlet, M, Lebarillec, T, Ledu, J, Le Duc, G, Le Guidec, D, Leluan, B, Lepercq, P, Lestrade, A, Jacquet M., Alexandre P., Alkadi M., Alves M., Amer M., Amoudry L., Auguste D., Babigeon J. L., Balcou P., Baltazar M., Benabderrahmane C., el Fekih R. B., Benoit A., Berteaud P., Biagini M., Blin A., Bobault S., Bonanzingamarco M., Bonenfant J., Bonis J., Bouanani Y., Bouaziz S., Bouvet F., Bravin A., Bruni C., Bruyere C., Bzyl H., Cassinari L., Cassou K., Cayla J. N., Chabaud T., Chaikovska I., Chance S., Chapelle C., Chaumat V., Chiche R., Cobessi A., Cormier E., Cornebise P., Couprie M. E., Cuoq R., Dalifard O., Degallaix J., Delerue N., Del Net W., Diaz A., Dietrich Y., Diop M., Dorkel R., Douillet D., Drebot I., Dugal J. P., Dupraz K., Dupuy E., El Ajjouri M., El Kamchi N., El Khaldi M., Elleaume H., Ergenlik E., Estève F., Favier P., Fernandez M., Gamelin A., Garaut J. F., Garolfi L., Gauron P., Gauthier F., Girault P., Gonnin A., Grasset D., Guerard E., Guler H., Haissinski J., Hazemann J. L., Helder D., Herbeaux C., Herry E., Hodeau J. L., Horodynski J. M., Hubert N., Iaquaniello G., Jacquet P., Jeantet P., Jehanno D., Jules E., Kapoujyan G., Kubytskyi V., Labat M., Labaye F., Lacipière J., Lacroix M., Lahéra E., Langlet M., Lebarillec T., Ledu J. F., Le Duc G., Le Guidec D., Leluan B., Lepercq P., and Lestrade A.

Abstract

With the increase in laser power and finesse of optical cavities over the last decade, laboratory-size Compton sources are very promising. These sources produce X-rays through interactions between relativistic electrons and laser photons and, in term of brightness, fall between large synchrotron facilities and classical laboratory X-ray sources. The ThomX source is the French project in this field. This article first presents a state of the art of high-intensity Compton sources, then the ThomX source is briefly described, and the first results are detailed, in particular the production of the first X-rays, the acquisition of the first spectrum and the first image of the beam. Finally, the next objectives are discussed.

Published
2024

5. Emerging Trends in Engineering Research and Technology Vol. 8

Author

Baginsky, Igor L., additional, Kostsov, Edward G., additional, Kamishlov, Victor F., additional, Patil, Sonali D., additional, Sharma, Manish, additional, Warke, Nilima, additional, Nair, J. M., additional, Vaidya, P. P., additional, Nnamchi, S. N., additional, Nnamchi, O. A., additional, Sangotayo, E. O., additional, Mundu, M. M., additional, Edosa, O. O., additional, Al-Khaldi, M. S., additional, Cliff, Steve De, additional, Delibozov, Nikolay, additional, Oyedeko, K. F., additional, Susu, A. A., additional, Puvaneswari, G., additional, UmaMaheswari, S., additional, Atthawuttikul, Ariya, additional, Chavalkul, Yada, additional, Sathya, A., additional, Kumar, G. Indra, additional, Gayathri, Vuchooru, additional, and Madhumitha, B., additional

Published
2020
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11. The ThomX ICS source

Author

Dupraz, K, Alkadi, M, Alves, M, Amoudry, L, Auguste, D, Babigeon, J, Baltazar, M, Benoit, A, Bonis, J, Bonenfant, J, Bruni, C, Cassou, K, Cayla, J, Chabaud, T, Chaikovska, I, Chance, S, Chaumat, V, Chiche, R, Cobessi, A, Cornebise, P, Dalifard, O, Delerue, N, Dorkel, R, Douillet, D, Dugal, J, El Kamchi, N, El Khaldi, M, Ergenlik, E, Favier, P, Fernandez, M, Gamelin, A, Garaut, J, Garolfi, L, Gauron, P, Gauthier, F, Gonnin, A, Grasset, D, Guerard, E, Guler, H, Haissinski, J, Herry, E, Iaquaniello, G, Jacquet, M, Jules, E, Kubytskyi, V, Langlet, M, Le Barillec, T, Ledu, J, Leguidec, D, Leluan, B, Lepercq, P, Letellier-Cohen, F, Marie, R, Marrucho, J, Martens, A, Mageur, C, Mercadier, G, Mercier, B, Mistretta, E, Monard, H, Moutardier, A, Neveu, O, Nutarelli, D, Omeich, M, Peinaud, Y, Petrilli, Y, Pichet, M, Plaige, E, Prevost, C, Rudnicky, P, Soskov, V, Taurigna-Quere, M, Trochet, S, Vallerand, C, Vitez, O, Wicek, F, Wurth, S, Zomer, F, Alexandre, P, Ben El Fekih, R, Berteaud, P, Bouvet, F, Cuoq, R, Diaz, A, Dietrich, Y, Diop, M, Pedeau, D, Dupuy, E, Marteau, F, Helder, D, Hubert, N, Veteran, J, Labat, M, Lestrade, A, Letresor, A, Lopes, R, Loulergue, A, Louvet, M, Marchand, P, El Ajjouri, M, Muller, D, Nadji, A, Nadolski, L, Nagaoka, R, Petit, S, Pollina, J, Ribeiro, F, Ros, M, Salvia, J, Bobault, S, Sebdaoui, M, Sreedharan, R, Bouanai, Y, Hazemann, J, Hodeau, J, Roy, E, Jeantet, P, Lacipiere, J, Robert, P, Horodynski, J, Bzyl, H, Chapelle, C, Biagini, M, Walter, P, Bravin, A, Del Net, W, Lahera, E, Proux, O, Elleaume, H, Cormier, E, Dupraz K., Alkadi M., Alves M., Amoudry L., Auguste D., Babigeon J. -L., Baltazar M., Benoit A., Bonis J., Bonenfant J., Bruni C., Cassou K., Cayla J. -N., Chabaud T., Chaikovska I., Chance S., Chaumat V., Chiche R., Cobessi A., Cornebise P., Dalifard O., Delerue N., Dorkel R., Douillet D., Dugal J. -P., El Kamchi N., El Khaldi M., Ergenlik E., Favier P., Fernandez M., Gamelin A., Garaut J. -F., Garolfi L., Gauron P., Gauthier F., Gonnin A., Grasset D., Guerard E., Guler H., Haissinski J., Herry E., Iaquaniello G., Jacquet M., Jules E., Kubytskyi V., Langlet M., Le Barillec T., Ledu J. -F., Leguidec D., Leluan B., Lepercq P., Letellier-Cohen F., Marie R., Marrucho J. -C., Martens A., Mageur C., Mercadier G., Mercier B., Mistretta E., Monard H., Moutardier A., Neveu O., Nutarelli D., Omeich M., Peinaud Y., Petrilli Y., Pichet M., Plaige E., Prevost C., Rudnicky P., Soskov V., Taurigna-Quere M., Trochet S., Vallerand C., Vitez O., Wicek F., Wurth S., Zomer F., Alexandre P., Ben El Fekih R., Berteaud P., Bouvet F., Cuoq R., Diaz A., Dietrich Y., Diop M., Pedeau D., Dupuy E., Marteau F., Helder D., Hubert N., Veteran J., Labat M., Lestrade A., Letresor A., Lopes R., Loulergue A., Louvet M., Marchand P., El Ajjouri M., Muller D., Nadji A., Nadolski L., Nagaoka R., Petit S., Pollina J. -P., Ribeiro F., Ros M., Salvia J., Bobault S., Sebdaoui M., Sreedharan R., Bouanai Y., Hazemann J. -L., Hodeau J. -L., Roy E., Jeantet P., Lacipiere J., Robert P., Horodynski J. -M., Bzyl H., Chapelle C., Biagini M., Walter P., Bravin A., Del Net W., Lahera E., Proux O., Elleaume H., Cormier E., Dupraz, K, Alkadi, M, Alves, M, Amoudry, L, Auguste, D, Babigeon, J, Baltazar, M, Benoit, A, Bonis, J, Bonenfant, J, Bruni, C, Cassou, K, Cayla, J, Chabaud, T, Chaikovska, I, Chance, S, Chaumat, V, Chiche, R, Cobessi, A, Cornebise, P, Dalifard, O, Delerue, N, Dorkel, R, Douillet, D, Dugal, J, El Kamchi, N, El Khaldi, M, Ergenlik, E, Favier, P, Fernandez, M, Gamelin, A, Garaut, J, Garolfi, L, Gauron, P, Gauthier, F, Gonnin, A, Grasset, D, Guerard, E, Guler, H, Haissinski, J, Herry, E, Iaquaniello, G, Jacquet, M, Jules, E, Kubytskyi, V, Langlet, M, Le Barillec, T, Ledu, J, Leguidec, D, Leluan, B, Lepercq, P, Letellier-Cohen, F, Marie, R, Marrucho, J, Martens, A, Mageur, C, Mercadier, G, Mercier, B, Mistretta, E, Monard, H, Moutardier, A, Neveu, O, Nutarelli, D, Omeich, M, Peinaud, Y, Petrilli, Y, Pichet, M, Plaige, E, Prevost, C, Rudnicky, P, Soskov, V, Taurigna-Quere, M, Trochet, S, Vallerand, C, Vitez, O, Wicek, F, Wurth, S, Zomer, F, Alexandre, P, Ben El Fekih, R, Berteaud, P, Bouvet, F, Cuoq, R, Diaz, A, Dietrich, Y, Diop, M, Pedeau, D, Dupuy, E, Marteau, F, Helder, D, Hubert, N, Veteran, J, Labat, M, Lestrade, A, Letresor, A, Lopes, R, Loulergue, A, Louvet, M, Marchand, P, El Ajjouri, M, Muller, D, Nadji, A, Nadolski, L, Nagaoka, R, Petit, S, Pollina, J, Ribeiro, F, Ros, M, Salvia, J, Bobault, S, Sebdaoui, M, Sreedharan, R, Bouanai, Y, Hazemann, J, Hodeau, J, Roy, E, Jeantet, P, Lacipiere, J, Robert, P, Horodynski, J, Bzyl, H, Chapelle, C, Biagini, M, Walter, P, Bravin, A, Del Net, W, Lahera, E, Proux, O, Elleaume, H, Cormier, E, Dupraz K., Alkadi M., Alves M., Amoudry L., Auguste D., Babigeon J. -L., Baltazar M., Benoit A., Bonis J., Bonenfant J., Bruni C., Cassou K., Cayla J. -N., Chabaud T., Chaikovska I., Chance S., Chaumat V., Chiche R., Cobessi A., Cornebise P., Dalifard O., Delerue N., Dorkel R., Douillet D., Dugal J. -P., El Kamchi N., El Khaldi M., Ergenlik E., Favier P., Fernandez M., Gamelin A., Garaut J. -F., Garolfi L., Gauron P., Gauthier F., Gonnin A., Grasset D., Guerard E., Guler H., Haissinski J., Herry E., Iaquaniello G., Jacquet M., Jules E., Kubytskyi V., Langlet M., Le Barillec T., Ledu J. -F., Leguidec D., Leluan B., Lepercq P., Letellier-Cohen F., Marie R., Marrucho J. -C., Martens A., Mageur C., Mercadier G., Mercier B., Mistretta E., Monard H., Moutardier A., Neveu O., Nutarelli D., Omeich M., Peinaud Y., Petrilli Y., Pichet M., Plaige E., Prevost C., Rudnicky P., Soskov V., Taurigna-Quere M., Trochet S., Vallerand C., Vitez O., Wicek F., Wurth S., Zomer F., Alexandre P., Ben El Fekih R., Berteaud P., Bouvet F., Cuoq R., Diaz A., Dietrich Y., Diop M., Pedeau D., Dupuy E., Marteau F., Helder D., Hubert N., Veteran J., Labat M., Lestrade A., Letresor A., Lopes R., Loulergue A., Louvet M., Marchand P., El Ajjouri M., Muller D., Nadji A., Nadolski L., Nagaoka R., Petit S., Pollina J. -P., Ribeiro F., Ros M., Salvia J., Bobault S., Sebdaoui M., Sreedharan R., Bouanai Y., Hazemann J. -L., Hodeau J. -L., Roy E., Jeantet P., Lacipiere J., Robert P., Horodynski J. -M., Bzyl H., Chapelle C., Biagini M., Walter P., Bravin A., Del Net W., Lahera E., Proux O., Elleaume H., and Cormier E.

Abstract

ThomX is a new generation Compact Compton Source. It is currently commissioned by and at the IJCLab (Laboratoire de physique des 2 infinis - Irène Joliot-Curie (UMR9012)) at Orsay. The first beam is expected at the begining of 2021. The aim of ThomX is to demonstrate the characteristics of an intense and Compact (lab-size) X-ray source based on Compton Scattering. The performances are mostly driven by the laser optical system which is above the state of the art of stored laser power. Proof of principle of various X-ray techniques will be performed thanks to the versatile ThomX beamline. Firstly, this article presents the machine description. Secondly, the issues and limits of the laser system are discussed. Then, the ThomX beamline is described and the machine status conclude the ThomX presentation. Finally, the expected performances for the next years and the possible experiments that can be made with this new machine are detailed.

Published
2020

15. A Case Report of Unusual Appearance of Multifocal Nodular Fatty Liver Infiltration with Hemosiderosis in A Patient with Leukemia, the Challenge in Diagnosis

Author

El Khaldi M, Swaidan M, Abu Shattal M, Abu Jazar H, and Al Hussaini M

Subjects
Pathology, medicine.medical_specialty, medicine.diagnostic_test, business.industry, Magnetic resonance imaging, General Medicine, Hemosiderosis, medicine.disease, Malignancy, Leukemia, Biopsy, medicine, Differential diagnosis, Abscess, business, Infiltration (medical)
Abstract

Hepatic steatosis is a frequent finding in computed tomography (CT) and magnetic resonance imaging (MRI). Chemotherapy is a predisposing factor for both fatty liver infiltration and hemosiderosis. Unusual appearance and behavior of multiple focal nodular fatty infiltration is rare to encounter and when associated with history of malignancy and/or infection presents a dilemma that a confident diagnosis might not be rendered by MRI thus a diagnostic biopsy would be needed to resolve the uncertainty in diagnosis. We present a patient with second relapse of acute myelogenous leukemia (AML) who developed fungal pulmonary infection while receiving salvage chemotherapy. Progressive target-shaped focal liver lesions which demonstrated characteristic fatty signal intensity on MRI were seen along with features of hemosiderosis of the liver parenchyma. Target and non-target liver tru-cut biopsies had to be performed to reach the final diagnosis of focal fatty infiltration and to rule out the differential diagnosis of liver abscesses and leukemia infiltration.

Published
2021

30. Impact of intraoperative hypovolemic phlebotomy on blood loss and perioperative transfusion in patients undergoing hepatectomy for cancer

Author

Gryspeerdt, F., primary, Khaldi, M Al, additional, Bouchard, C., additional, Vandenbroucke-Menu, F., additional, Plasse, M., additional, Létourneau, R., additional, Dagenais, M., additional, Roy, A., additional, Lapointe, R., additional, Carrier, F.-M., additional, Massicotte, L., additional, Rioux-Massé, B., additional, and Turcotte, S., additional

Published
2019
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31. ADSORPTION KINETICS OF AN CATIONIC DYE FFROM AQUEOUSE SOLUTION BY ALGERIAN MINERAL MATERIALS

Author

Z. Souidi, A. Benyoucef, K . Khaldi , M . Hadjel, R.Cherrak

Subjects
Keywords: adsorption –methylene blue-kinetics-kaolin-diatomite
Abstract

The objective of this study is to determine the power of two algerian mineral materials (kaolin and diatomite ) ,in order to remove an cationic dye(methylene blue )from aqueous solution ,materials have been characterized by different techniques .experiments have been studied on bath mode ,the influence of some parameters had been studied , such as , contact time ,the pH of solution and initial concentration .kinetics show that adsorption of methylene blue on to diatomite is faster than processus of adsorption on to kaoln ,and can be demonstrated by the pseudo-second –order model. Diatomite and kaolin used in this study improve their efficiency on elimination of methylene blue and could be low-cost alternative materials., Moroccan Journal of Chemistry, Vol 6, No 2 (2018)

Published
2017
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34. First Optics Design and Beam Performance Simulation of PRAE: Platform for Research and Applications With Electrons at Orsay

Author

Sergey Barsuk, Borgo, B., Rachel Delorme, Douillet, D., El Khaldi, M., Angeles Faus-Golfe, Garolfi, L., Gonnin, A., Langlet, M., Lepercq, P., Omeich, M., Puill, V., Vallerand, C., Ausset, P., Ben Abdillah, M., Blivet, S., Duchesne, P., Genolini, B., Hoballah, M., Hrybok, A., Hull, G., Kunne, R., Le Galliard, C., Lesrel, J., Marchand, D., Yolanda Prezado, J-M Voutier, E., Vnuchenko, A., Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Imagerie et Modélisation en Neurobiologie et Cancérologie (IMNC (UMR_8165)), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.PHYS]Physics [physics]/Physics [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2017

48. Accélérateur Linéaire d’électrons à fort gradient en bande S pour ThomX

Author

Garolfi, L., Khaldi, M. El, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), ThomX, and Starita, Sabine

Subjects
[PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], [PHYS.PHYS.PHYS-ACC-PH] Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph]
Abstract

International audience; ThomX est un projet de source de lumière compacte où l’effet Compton est utilisé pour produire des rayons X de haute énergie (40–90keV) avec un flux moyen de 1011–1013 ph/s. La machine est composée d’un injecteur à électrons (50-70 MeV) et d’un anneau de stockage. Afin de limiter la taille de telles machines performantes il est nécessaire d’accroître les gradients d’accélération dans les structures plus compactes. Actuellement on réalise de façon courante en bande S (3GHz) des gradients accélérateurs de l’ordre de 20 MV/m, mais on envisage qu’un tel seuil puisse être plus élevé avec une probabilité de claquage relativement faible. Dans le cadre du projet THOMX, LAL s’est engagé en collaboration avec PMB-ALCEN à développer une section accélératrice compacte en cuivre à fort gradient en bande S pour porter les faisceaux de ThomX de 50 MeV à 70 MeV. La section en question est une structure périodique à Iris, à onde progressive directe, fonctionnant en mode 2π/3, à champ quasi-constant et à vitesse de phase c. Des prototypes ont été conçus et seront fabriqués prochainement et dont l’objectif de valider la géométrie, les choix technologiques et les procédés de fabrication.

Published
2015

49. Le facteur humain et la sûreté de fonctionnement dans le management intégré

Author

Guenachi, K, Bouamrare, K, and Khaldi, M

Subjects
Risques- Sureté de fonctionnement -Management intégré - Facteur humain - Développement durable
Abstract

Pendant longtemps, pour la plupart des organisations, la sûreté de fonctionnement (SdF) reposait essentiellement sur les performances des systèmes techniques. Elle avait pour objectif la recherche d’un meilleur confort, d’une garantie de continuité de service et de maintien, à moindre coût de la qualité d'un produit ou d'un système donné. Elle permettait d’optimiser le couple « performance-coût », en identifiant, évaluant et maîtrisant les pannes qu'il est susceptible de subir. Or celles-ci, peuvent engendrer des risques conduisant à l'absence du service (problème de fiabilité), entraîner des pertes de production (problème de disponibilité et/ou de maintenabilité) ou provoquer des accidents avec ou non des pertes humaines et des atteintes à l'environnement (problème de sécurité). Aujourd’hui, le développement technologique n’est plus dissocié de la nécessité du contexte sécurisé. Notre contribution porte sur le rôle fondamental du facteur humain dans le management intégré des risques d’une part et du rôle déterminant qu’il peut avoir à jouer pour que la sûreté de fonctionnement réponde à sa propriété d’autre part. Un rôle illustré à travers une analyse de risque dans un complexe de Gaz Naturel Liquéfié dans la zone industrielle d’Arzew en Algérie.Mots clés : Risques- Sureté de fonctionnement -Management intégré - Facteur humain - Développement durable

Published
2015

50. Field-Assisted DC-Pulsed Cathodes for next generation light sources and accelerators

Author

Babigeon, J-L., Khaldi, M. El, Holtzer, N., Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Starita, Sabine

Subjects
[PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], Physics::Accelerator Physics, [PHYS.PHYS.PHYS-ACC-PH] Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph]
Abstract

International audience; The scope of that contribution is to present the challenges of the next particle sources for accelerators. It is admitted that emittance near Interaction Point (IP) is strongly dominated by the emittance of the low power source. To minimize theBremstrahlung effects in the Interaction Point (IP), we also need extremely low emittance bunches, ultra high brillance, very low charges sub fC, near depopulated attosecond electronic bunches. These produced bunches should fit the entrances of Dielectric Laser Accelerators (DLA) and Laser Plasma Accelerators (LPA).A 20kV DC pulsed sub nanosecond Field Emission Array source with extremely low emittance is considered in order to obtain such results. Firstly, we will describe the DC-pulsed experimental source by blocks. Following that, we will raise more general problems induced by DC-pulsed configuration: thermal transient behaviour of nanostructures, enhancement of plasmons coupling in relation to nanostructured networks, then fast prototyping of cathode geometry will be undertaken using different models. These cathodes are to be fabricated at Orsay.We present the method of curvilinear coordinate calculus, adapted to major classes of nanostructured tips. We define 3 major classes of 3D analytical profiles to emulate experimental conditions (multi-segment, quadratic and exponential one) and apply curvilinear analytical Maxwellsolving to find electrostatic potential around the profile. Our method is concurrent to T-splines for instance, but it is expected to converge faster. Cathode physics will be modelled integrating different phenomenons: photo/thermal/field/emission... Results will be compared to electromagnetic simulations with CST and Astra tools. To conclude, we shall then evaluate the emittance performances planned for a 20keV cathodic source, and its acceptance to the next stages, with the help of some electrostatic focusing. Numerous experimental and theoretical aspects are to be solved.

Published
2015

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