Spiral 2 Cryogenic System for The Superconducting LINAC

A. Ghribi; P.E. Bernaudin; Y. Bert; C. Commeaux; M. Houeto; G. Lescalié

Spiral 2 Cryogenic System for The Superconducting LINAC

A. Ghribi ^{1, *} P.E. Bernaudin ¹ Y. Bert ² C. Commeaux ² M. Houeto ¹ G. Lescalié ¹

* Corresponding author

1 GANIL - Grand Accélérateur National d'Ions Lourds

2 HELTECH

Abstract : SPIRAL 2 is a rare isotope accelerator dedicated to the production of high intensity beams (E = 40MeV , I = 5mA). The driver is a linear accelerator (LINAC) that uses bulk Niobium made quarter wave RF cavities. 19 cryomodules inclose one or two cavities respectively for the low and the high energy sections. To supply the 1300W at 4:2K required to cool down the LINAC, a cryogenic system has been set up. The heart of the latter is a 3 turbines geared HELIAL®LF (ALAT) cold box that delivers both the liquid helium for the cavities and the 60K Helium gaz for the thermal screens. 19 valve-boxes insure cryogenic uid distribution and management. Key issues like cool down speed or cavity RF frequency stability are closely linked to the cryogenic system management. To overcome these issues, modelling and simulation efforts are being undertaken prior to the first cool down trials. In this paper, we present a status update of the Spiral 2 cryogenic system and the cool down strategy considered for its commissioning.

Document type :

Conference papers

Domain :

Physics [physics] / Physics [physics] / Accelerator Physics [physics.acc-ph]

Complete list of metadatas

http://hal.in2p3.fr/in2p3-01518359
Contributor : Michel Lion <>
Submitted on : Thursday, May 4, 2017 - 3:08:24 PM
Last modification on : Thursday, February 1, 2018 - 1:34:58 AM

Spiral 2 Cryogenic System for The Superconducting LINAC

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Spiral 2 Cryogenic System for The Superconducting LINAC

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