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AIDA-D8.10 AIDA - CERN · PDF file AIDA-D8.10 AIDA Advanced European Infrastructures for Detectors at Accelerators Deliverable Report Commissioning of new facility equipment B.Gkotse,

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  • AIDA-D8.10

    AIDA Advanced European Infrastructures for Detectors at Accelerators

    Deliverable Report

    Commissioning of new facility equipment

    B.Gkotse, B. (CERN) et al

    29 January 2015

    The research leading to these results has received funding from the European Commission under the FP7 Research Infrastructures project AIDA, grant agreement no. 262025.

    This work is part of AIDA Work Package 8: Improvement and equipment of irradiation and test beam lines.

    The electronic version of this AIDA Publication is available via the AIDA web site or on the CERN Document Server at the following URL:

    AIDA-D8.10

    http://cern.ch/aida http://cds.cern.ch/search?p=AIDA-D8.10

  • Copyright © AIDA Consortium, 2015

    Grant Agreement 262025 PUBLIC 1 / 15

    Grant Agreement No: 262025

    AIDA Advanced European Infrastructures for Detectors at Accelerators

    Seventh Framework Programme, Capaci t ies Spec i f ic Programme, Research In f rast ructu res,

    Combinat ion of Col laborat ive Pro ject and Coord inat ion and Support Act ion

    DELIVERABLE REPORT

    Commissioning of new facility equipment

    DELIVERABLE: D8.10

    Document identifier: AIDA-Del-D8.10

    Due date of milestone: End of Month 48 (January 2015)

    Report release date: 29/01/2015

    Work package: WP8: Improvement and equipment of irradiation and

    beam lines

    Lead beneficiary: CERN

    Document status: Final

    Abstract:

    CERN has constructed a new irradiation facility in the PS (Proton Synchrotron) EAST AREA. The

    facility contains a proton and a mixed irradiation field facility. The commissioning of the overall

    facility started in October 2014. Part of the infrastructure of the proton irradiation facility IRRAD was

    produced in the framework of the AIDA project. This document reports on the proton irradiation

    facility and its first commissioning run in October to December 2014. Particular emphasis is given to

    the user infrastructure including cold boxes and a new fluence monitoring systems that were provided

    as AIDA deliverables in a collaborative effort between CERN and external partners. The facility itself

    has already been described in detail in the AIDA deliverable report AIDA-D8.4 [1].

  • COMMISSIONING OF

    NEW FACILITY EQUIPMENT

    AIDA-Del-D8.10

    Date: 29/01/2015

    Grant Agreement 262025 PUBLIC 2 / 15

    Copyright notice:

    Copyright © AIDA Consortium, 2015

    For more information on AIDA, its partners and contributors please see www.cern.ch/AIDA

    The Advanced European Infrastructures for Detectors at Accelerators (AIDA) is a project co-funded by the

    European Commission under FP7 Research Infrastructures, grant agreement no 262025. AIDA began in

    February 2011 and will run for 4 years.

    The information herein only reflects the views of its authors and not those of the European Commission and no

    warranty expressed or implied is made with regard to such information or its use.

    Delivery Slip

    Name Partner Date

    Authored by

    B.Gkotse, M.Glaser, P.Lima, E.Matli,

    M. Moll, F.Ravotti

    R.French

    G.Beck

    E.Gaubas, J.Vaitkus, T.Čeponis, A.Tekorius,

    J.Pavlov, D.Meškauskaitė, A.Uleckas

    CERN

    USFD

    QMUL

    VU

    05/01/2015

    Edited by M.Moll CERN 15/01/2015

    Reviewed by

    M.Moll [WP coordinator]

    G.Mazzitelli [WP coordinator]

    L.Serin [Scientific coordinator]

    CERN

    INFN

    CNRS

    21/01/2015

    Approved by Steering Committee 29/01/2015

    http://www.cern.ch/AIDA

  • COMMISSIONING OF

    NEW FACILITY EQUIPMENT

    AIDA-Del-D8.10

    Date: 29/01/2015

    Grant Agreement 262025 PUBLIC 3 / 15

    TABLE OF CONTENTS

    1. INTRODUCTION ........................................................................................................................................ 3

    2. LAYOUT OF THE IRRAD PROTON FACILITY ................................................................................... 5

    3. FACILITY INFRASTRUCTURE .............................................................................................................. 6

    3.1. IRRADIATION TABLES .............................................................................................................................. 6 3.2. COLD BOXES ........................................................................................................................................... 6 3.3. IRRADIATION SHUTTLE ............................................................................................................................ 8 3.4. MONITORING THE BEAM CONDITIONS .................................................................................................... 10 3.5. OFFLINE FLUENCE MONITORING ........................................................................................................... 10

    4. COMMISSIONING OF THE FACILITY ............................................................................................... 12

    5. CONCLUSION ........................................................................................................................................... 15

    1. INTRODUCTION

    The proton irradiation facility in the PS East Area (known as IRRAD1), on the T7 beam line, was

    heavily and successfully exploited for irradiation of particle detector elements, electronic components

    and detector materials since 1992. The mixed-field irradiation facility (known as IRRAD2) was

    instead implemented behind the DIRAC experiment on the T8 beam line and has been operated

    parasitically to DIRAC since 1998 [2]. These facilities received particle bursts - protons with

    momentum of 24GeV/c - delivered from the PS accelerator in “spills” of about 400ms (slow

    extraction). In IRRAD1, the proton beam was spread out in order to produce a uniform irradiation spot

    of several square centimetres, while in IRRAD2 the irradiation was performed in a small cavity with

    secondary particles produced by the primary proton beam impinging on a thick target made of carbon,

    iron and lead [3]. In the past 15 years, more than 8300 “pieces” were irradiated using this

    infrastructure.

    Based on previous studies carried out during the years 2007-2010 [4], the need of improved irradiation

    facilities at CERN, was confirmed and consolidated. More specifically, in view of the high-luminosity

    upgrade of the LHC and its experiments, the old PS East Area (EA) facilities suffered from a number

    of restrictions:

    1. the available space was very limited and allowed only the irradiation of relatively small and stand-alone objects;

    2. the proton flux was limited on the one hand by the weakness of the shielding and, on the other hand, by the competition for proton spills with DIRAC;

    3. the access to the IRRAD1 proton facility required long cool-down time and a stop of the operation in the whole EA for the full duration of the access.

    In the framework of the AIDA project, an upgrade of the all EA irradiation facilities on the T8 beam-

    line was proposed based on the assumption that DIRAC would have concluded its experimental

    program in 2012. The DIRAC experimental apparatus was then decommissioned during 2013 and in

    the following the new EA-IRRAD facility was constructed and is today being commissioned at its

    place in the framework of the overall renovation project of the PS East Area [5]. The EA-IRRAD

    project involves several CERN groups belonging mainly to the Engineering and Physics department.

  • COMMISSIONING OF

    NEW FACILITY EQUIPMENT

    AIDA-Del-D8.10

    Date: 29/01/2015

    Grant Agreement 262025 PUBLIC 4 / 15

    Figure 1: Layout of the PS East Area until 2012 (left). New combined EA-IRRAD facility implemented on the

    T8 beam-line (right): the proton area, IRRAD (upstream), is followed by the mixed-field area CHARM

    (downstream).

    As shown in Figure 1 (right), the new proton irradiation facility (named IRRAD) has been constructed

    at the location previously occupied by the DIRAC target [1,6]. A photo of the facilities is given in Figure 2. While the mixed-field facility (named CHARM [7]) is constructed downstream of IRRAD, in the location where the former DIRAC detector was installed (left of Figure 1). This solution has

    several advantages:

    1. the access to the facility is independent of other experiments located in the PS EA;

    2. the layout is optimised for exploitation as an irradiation facility, with appropriate shielding, ventilation, dedicated infrastructure and sufficient space for a proper installation and easy

    accessibility of the equipment;

    3. the same protons are used for both IRRAD and CHARM, thus leading to a strongly improved PS cycle economy and optimal use of available protons.

    In the new IRRAD facility, a particle fluence of about 1×1016 p/cm2 could be reached in 5 days over a

    surface of 12×12mm2 (FWHM). This roughly corresponds to a factor 4-increased intensity with

    respect to the previous IRRAD1 facility. In the following of this paper, the key characteristics of the

    new IRRAD faci

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