EPAC 2006 - List of Keywords

A B C D E F G H I K L M O P Q R S T U V W X

wiggler

Paper	Title	Other Keywords	Page
MOPLS093	Commissioning Status of the CTF3 Delay Loop	CLIC, CTF3, linac, CERN	771
	R. Corsini, S. Doebert, F. Tecker, P. Urschütz CERN, Geneva D. Alesini, C. Biscari, B. Buonomo, A. Ghigo, F. Marcellini, B. Preger, M. Serio, A. Stella INFN/LNF, Frascati (Roma)
	The CLIC Test Facility CTF3, built at CERN by an international collaboration, aims at demonstrating the feasibility of the CLIC scheme by 2010. In particular, one of the main goals is to study the generation of high-current electron pulses by interleaving bunch trains in delay lines and rings using transverse RF deflectors. This will be done in the 42 m long delay loop, built under the responsibility of INFN/LNF, and in the 84 m long combiner ring that will be installed in 2006. The delay loop installation was completed, and its commissioning started at the end of 2005. In this paper the commissioning results are presented, including the first tests of beam recombination.

MOPLS134	Minimizing Emittance for the CLIC Damping Ring	damping, emittance, CLIC, permanent-magnet	870
	H.-H. Braun, M. Korostelev, D. Schulte, F. Zimmermann CERN, Geneva E.B. Levitchev, P.A. Piminov, S.V. Sinyatkin, P. Vobly, K. Zolotarev BINP SB RAS, Novosibirsk
	The CLIC damping rings aim at unprecedented small normalized equilibrium emittances of 3.3 nm vertical and 550 nm horizontal, for a bunch charge of 2.6 10⁹ particles and an energy of 2.4 GeV. In this parameter regime the dominant emittance growth mechanism is intra-beam scattering. Intense synchrotron radiation damping from wigglers is required to counteract its effect. Here the overall optimization of the wiggler parameters is described, taking into account state-of-the-art wiggler technologies, wiggler effects on dynamic aperture, and problems of wiggler radiation absorption. Two technical solutions, one based on superconducting magnet technology and the other on permanent magnets, are presented. Although dynamic aperture and tolerances of this ring design remain challenging, benefits are obtained from the strong damping. Only bunches for a single machine pulse need to be stored, making injection/extraction particularly simple and limiting the synchrotron-radiation power. With a 360 m circumference, the ring remains comparatively small.

MOPLS136	Ion Effects in the Damping Rings of ILC and CLIC	ion, CLIC, damping, vacuum	876
	F. Zimmermann, W. Bruns, D. Schulte CERN, Geneva
	We discuss ion trapping, rise time of the fast beam-ion instability, and ion-induced incoherent tune shift for various incarnations of the ILC damping rings and for CLIC, taking into account the different regions of each ring. Analytical calculations for ion trapping are compared with results from a new simulation code.

MOPLS137	Tracking Studies to Determine the Required Wiggler Aperture for the ILC Damping Rings	lattice, damping, positron, injection	879
	I. Reichel LBNL, Berkeley, California A. Wolski Liverpool University, Science Faculty, Liverpool
	The injection efficiency of an ILC damping ring is closely tied to its acceptance. To maximize both, one wants a physical aperture as large as possible in the wiggler magnets, as these are the limiting physical apertures in the ring. On the other hand, a small aperture in the wiggler magnets is needed to achieve the required field profile, a high magnetic field that is very linear over the whole physical aperture of the magnet. Tracking studies were done for all proposed ILC damping ring lattices to determine their required apertures. Although a half-aperture of 8 or 10 mm had been proposed, our studies showed that, for most lattices, a 16 mm half-aperture is required. (For some lattices a 12 mm half aperture might suffice.) We present here the results of our studies, which led to adopting a 16 mm half-aperture in the current ILC damping ring baseline design.

MOPLS139	Choosing a Baseline Configuration for the ILC Damping Rings	damping, lattice, kicker, dynamic-aperture	885
	A. Wolski Liverpool University, Science Faculty, Liverpool J. Gao IHEP Beijing, Beijing S. Guiducci INFN/LNF, Frascati (Roma)
	The damping rings for the International Linear Collider must be capable of accepting large beams from the electron and positron sources, and producing highly damped beams meeting demanding stability specifications, at the machine repetition rate of 5 Hz. Between March and November 2005, a program of studies was undertaken by an international collaboration of 50 researchers to compare a number of configuration options, including ring circumferences between 3 and 17 km. Here, we outline the studies and discuss the principal considerations in the choices of the baseline and alternative damping ring configurations.

MOPLS141	The Proposed Conversion of CESR to an ILC Damping Ring Test Facility	emittance, damping, electron, positron	891
	M.A. Palmer, R.W. Helms, D. L. Rubin, D. Sagan, J.T. Urban Cornell University, Laboratory for Elementary-Particle Physics, Ithaca, New York M. Ehrlichman University of Minnesota, Minneapolis, Minnesota
	In 2008 the Cornell Electron Storage Ring (CESR) will end nearly three decades of providing electron-positron collisions for the CLEO experiment. At that time it will be possible to reconfigure CESR as a damping ring test facility, CesrTF, for the International Linear Collider (ILC) project. With its complement of 12 damping wigglers, CesrTF will offer horizontal emittances in the few nanometer range and, ideally, vertical emittances approaching those specified for the ILC damping rings. An important feature of the CesrTF concept is the ability to operate with positrons or electrons. Positron operation will allow detailed testing of electron cloud issues critical for the operation of the ILC positron damping rings. Other key features include operation with wigglers that meet or exceed all ILC damping ring requirements, the ability to operate from 1.5 to 5.5 GeV beam energies, and the provision of a large insertion region for testing damping ring hardware. We discuss in detail the CesrTF machine parameters, critical conversion issues, and experimental reach for damping ring studies.

MOPLS142	Optimization of CESR-c Superferric Wiggler for the International Linear Collider Damping Rings	damping, dynamic-aperture, lattice, TESLA	894
	J.T. Urban, G. Dugan, M.A. Palmer Cornell University, Laboratory for Elementary-Particle Physics, Ithaca, New York
	We present the results of an optimization of the Cornell Electron Storage Ring (CESR) superferric wiggler for the International Linear Collider (ILC) damping ring. The superferric CESR wiggler has been shown to have excellent beam dynamics properties in the ILC damping ring. We reduced the physical size, and hence cost, of the CESR wiggler with minimal degradation of ILC damping ring beam dynamics. We will provide a description of the optimized superferric wiggler and show the performance of this wiggler in the ILC baseline damping ring.

TUYFI02	Latest Developments on Insertion Devices	undulator, permanent-magnet, electron, ESRF	969
	P. Elleaume, J. Chavanne ESRF, Grenoble
	A review will be carried out of the developments on Insertion Devices that have taken place world wide in the last few years. These include the development of long period electro-magnet undulators, the operational results of a number of Apple-II undulators, the development of superconducting short period multipole wigglers, as well as the construction and operation of several in-vacuum undulators. The construction of a large number of competitive middle energy synchrotron sources in the hard X-ray range means that the need to increase the photon energy in the fundamental peak of an undulator is becoming a very important issue. Two main development strategies are currently being investigated. One consists of using superconducting undulator technology, the other of a further refinement of the in-vacuum undulator permanent magnet technology with cryogenic cooling of the magnetic assembly. The issues and challenges that are part of each approach will be presented, together with the latest results.
	Transparencies

TUODFI03	Operational Status of CESR-c	luminosity, optics, electron, positron	992
	J.A. Crittenden Cornell University, Department of Physics, Ithaca, New York
	We summarize recent running experience at the Cornell Electron Storage Ring operating as a high-statistics production-threshold factory for mesons containing charm quarks. Since beginning operation at beam energies near 2 GeV in late 2003, CESR has accumulated world-record samples of D and D$_s$ meson decays and has also operated in an energy-scanning mode, making unique contributions to the presently very active field of charm spectroscopy. CESR lattice design is characterized by the versatility provided by the variety of beam-line components applied to the challenges imposed by the beam-beam interactions at the parasitic crossing points in the pretzel orbits and the necessity of powerful superconducting wiggler magnets used to tune damping and emittance. We describe the observed tune-plane, beam-current and luminosity limits, as well as our understanding of their sources and near-term plans for operational improvements.
	Transparencies

TUPCH179	R&D on Copper Beam Ducts with Antechambers and Related Vacuum Components	KEKB, electron, vacuum, photon	1438
	Y. Suetsugu, H. Hisamatsu, K.-I. Kanazawa, K. Shibata, M. Shimamoto, M. Shirai KEK, Ibaraki
	A beam duct with antechambers is able to reduce the effect of photoelectrons and, as a result, to suppress the electron cloud effect of positron or proton beam. It will be adopted for a future high current positron/proton rings and also a damping ring of a linear collider. Copper beam ducts with one or two antechambers were manufactured for test and the feasibility was studied. The test chambers were then installed into the KEK B-factory positron ring and the performance was investigated with a beam current up to 2000 mA. The temperature, the pressure and the electron density in the beam channel were measured during the beam operation. The photoelectron, for example, was found to be well suppressed as expected compared to that of a simple circular beam duct. The related vacuum components, such as a connection flange, a bellows chamber and a gate valve with the same cross section to the beam duct, were also developed and tested together with the beam duct.

WEYPA02	Damping Rings towards Ultra-low Emittances	damping, emittance, electron, kicker	1857
	S. Guiducci INFN/LNF, Frascati (Roma)
	The presentation will review the various designs of Damping Rings to achieve ultra-low emittance beams in Linear Colliders (ILC and CLIC) pointing out the major issues both from the beam dynamics and the technological point of vue and comparing the required performances with the one achieved in SLC or FFTB. It will then present the design, beam simulations, benchmarking and performances already achieved in test facilities, especially the ATF1 facility developed and operated at KEK. Finally, it will present future R&D plans and schedule in terms of beam performances, beam stability and technological development as well as the world-wide organization to achieve them.
	Transparencies

WEPCH004	Estimation of Transverse Coupling From Pinhole Images	coupling, emittance, resonance, radiation	1921
	X.R. Resende, P.F. Tavares LNLS, Campinas
	The Brazilian Synchrotron Light Laboratory (LNLS) has recently started filling its storage ring straight sections with insertion devices. Last year a 2-Tesla Wiggler was successfully installed and integrated in the control system. An elliptically polarizing undulator is now under construction and scheduled to be installed in the next shutdown, by the end of the current year. The VUV beamline for the undulator is very demanding with respect to orbit stability and other beam parameters. Considerable reduction of the vertical emittance via reduction of the transverse coupling is a must in order for the undulator beamline to achieve its promised outstanding performance. In this paper we report on recent efforts to better understand the residual coupling in the machine and we describe preliminary proposals of viable solutions that aim at controlling the linear coupling within beamline specifications.

WEPCH016	Spurious Vertical Dispersion Correction for PETRA III	quadrupole, emittance, damping, closed-orbit	1954
	G.K. Sahoo, K. Balewski, W. Decking DESY, Hamburg
	Spurious vertical dispersion, arising due to the misalignment and rotational errors of magnets in synchrotron radiation sources with low emittances, are highly undesirable as this contributes to the vertical beam size of the photon beam. This is a matter of concern in PETRA III, a 6GeV light source with a designed horizontal emittance of 1nm.rad and 1% emittance coupling. It has a hybrid lattice of FODO and DBA cells, which will be installed in one-eighth of the existing PETRA II ring. In this paper local and global vertical dispersion corrections are discussed. The global vertical dispersion is corrected using vertical corrector magnets (may also consider 12 skew quadrupole magnets), and the skew quadrupoles are used for local correction as well. Eight of them are placed close to the two damping wiggler sections used for minimizing the horizontal emittance. The remaining four are placed in the new octant with DBA cells where insertion devices are installed.

WEPCH146	Intrabeam Scattering Studies for the ILC Damping Rings Using a New Matlab Code	damping, lattice, emittance, positron	2266
	I. Reichel, A. Wolski LBNL, Berkeley, California
	A new code to calculate the effects of intrabeam scattering (IBS)has been developed in Matlab based on the approximation suggested by K. Bane. It interfaces with the Accelerator Toolbox* but can also read in lattice functions from other codes. The code has been benchmarked against results from other codes for the ATF*** that use this approximation or do the calculation in a different way. The new code has been used to calculate the emittance growth due to intrabeam scattering for the lattices currently proposed for the ILC Damping Rings, as IBS is a concern, especially for the electron ring. A description of the code and its user interface, as well as results for the Damping Rings, will be presented. K. Bane, in Proceedings of EPAC2002, p.1443. A. Terebilo, Accelerator Toolbox for MATLAB, SLAC-PUB-8732 and www-ssrl.slac.stanford.edu/at/. **K. Kubo et al. PhysRevST AB.8.081001 (2005).

WEPLS064	Wiggler for ILC Cooler	emittance, quadrupole, focusing, dipole	2526
	A.A. Mikhailichenko Cornell University, Department of Physics, Ithaca, New York
	We represented the concept of a wiggler with linear piecewise field dependence. This eliminates nonlinearities in wiggler. This type of wiggler can be recommended for usage in ILC cooler.

THOBFI02	Measurement of the Beam Profiles with the Improved Fresnel Zone Plate Monitor	damping, coupling, optics, emittance	2784
	H. Sakai, N. Nakamura ISSP/SRL, Chiba H. Hayano, T. Muto KEK, Ibaraki
	We present the recent progress of the FZP (Fresnel Zone Plate) beam profile monitor constructed at KEK-ATF damping ring. This monitor based on an X-ray imaging optics with two FZPs. In this monitor, the transverse electron beam image at bending magnet is twenty-times magnified by the two FZPs and detected on an X-ray CCD camera. Then the real-time and 2-dimentional transverse beam profiles can be obtained with non-destructive manner by using this monitor. The expected spatial resolution is less than 1 micro-meter. Recently, we install the new mechanical shutter to improve time resolution of the monitor and avoid the effects of the short-term movement of the beam or the monitor itself. By applying this shutter, the shutter opening time was reduced less than 1ms and the beam profile could be measured more accurately. In this paper, we report the new shutter performance and the measurement results of beam profiles by the improved FZP beam profile monitor. K. Iida, et al. Nucl. Instrum. Meth. A 506 (2003) 41-49.
	Transparencies

THPCH075	Simulation of the Electron Cloud for Various Configurations of a Damping Ring for the ILC	electron, damping, simulation, positron	2958
	M.T.F. Pivi, T.O. Raubenheimer, L. Wang SLAC, Menlo Park, California K. Ohmi KEK, Ibaraki R. Wanzenberg DESY, Hamburg A. Wolski Liverpool University, Science Faculty, Liverpool F. Zimmermann CERN, Geneva
	In the beam pipe of the Damping Ring (DR) of the International Linear Collider (ILC), an electron cloud may be first produced by photoelectrons and ionization of residual gasses and then increased by the secondary emission process. This paper reports about the work that has been done by the electron cloud assessment international task force group for the recommendation of the ILC Damping Rings baseline design, made in November 2005. We have carefully estimated the secondary electron yield (SEY) threshold for electron cloud build-up and estimated the related single^- and coupled-bunch instabilities that can be caused by the presence of electron cloud as a function of beam current and surface properties, for a variety of optics designs. The result of these studies was an important consideration in the choice of a 6-km design for the ILC damping rings. On the basis of the theoretical and experimental work, the baseline configuration specifies a pair of damping rings for the positron beam to mitigate the effects of the electron cloud.

THPCH134	Development of Insertion Device Magnetic Characterization Systems at LNLS	insertion, insertion-device, controls, synchrotron	3113
	G. Tosin, R. Basilio, J.F. Citadini, M. Potye LNLS, Campinas
	This paper describes a set of magnetic measurement systems employed in the development of insertion devices at LNLS (Brazilian Synchrotron Light Source). They are: rotating coil (which can also operate as a flip-coil), spatial field mapping using Hall probes and parallel coils (Helmholtz configuration) for magnetic blocks characterization. Although such techniques are well established, strict specifications imposed by the beam dynamics on the magnetic field quality, led to a detailed analysis of their sources of error and their minimization. All three systems have already been tested and showed excellent accuracy and repeatability when compared to typical values found in the literature.

THPLS020	Progress Report on PETRA III	PETRA, DESY, vacuum, emittance	3317
	K. Balewski DESY, Hamburg
	Starting from the middle of 2007, the existing storage ring PETRA II at DESY will be converted into the hard x-ray light source PETRA III. The project was launched in 2002, and in preparation of the conversion a technical design report was published in 2004. Since then detailed design and construction of technical components have begun. Prototypes have been built and tested and the procurement of major parts of the machine components such as magnets and vacuum chambers has started. The project is well underway and in line with the goal of starting the rebuilding in 2007 and the commissioning in 2009. In addition to an overall status report, the development of components and measurement results of prototypes will be presented.

THPLS021	Dynamic Aperture Studies for PETRA III	sextupole, dynamic-aperture, PETRA, undulator	3320
	Y.J. Li, K. Balewski, W. Decking DESY, Hamburg
	PETRA III is a low-emittance storage ring dedicated to synchrotron radiation. For efficient injection in the top-up mode, the dynamic aperture has to be larger than 30 mm-mrad in the horizontal plane. This paper presents the choice of tunes and the optimization of the sextupole configuration. Tracking simulations have been performed, including the non-linear effects of 20 four-meters-long damping wigglers and a representative set of undulators. Misalignment and multipole errors are considered as well, leading to specifications for the magnet design and alignment procedure.

THPLS024	Controlling the Vertical Emittance Coupling in CAMD	coupling, quadrupole, TESLA, resonance	3329
	V.P. Suller CCLRC/DL/ASTeC, Daresbury, Warrington, Cheshire M.G. Fedurin, P. Jines, D.J. Launey, T.A. Miller, Y. Wang LSU/CAMD, Baton Rouge, Louisiana
	The vertical beam size in the CAMD Light Source, as measured with an x-ray pinhole camera, indicates an emittance coupling ratio of 3%. This is consistent with the coupling ratio as measured by the betatron tune split when the coupling resonance is fully engaged. It has been shown that the coupling is mainly produced in the 7T wiggler, which is known to produce non-linear fields. To correct this coupling, it is proposed to install up to four skew quadrupoles. The results of testing a prototype skew quadrupole in the lattice are presented. It is shown that the coupling will be substantially corrected by suitably distributing and powering the four skew quadrupoles.

THPLS026	Front Ends at Diamond	undulator, radiation, multipole, storage-ring	3335
	J. Strachan, D.G. Clarke CCLRC/DL, Daresbury, Warrington, Cheshire H.C. Huang, J. Kay Diamond, Oxfordshire
	This paper describes the three different types of Front End that have been designed to transmit the intense synchrotron radiation generated by the undulator, multi-pole wiggler and bending magnet sources in the Diamond storage ring to the experiments. The functions of the main components and their location in the layout are described. The Finite Element Analysis that has been carried out to verify the performance under the high heat loads generated by Diamond is also described along with the limits on temperature and stress that have been employed in the design.

THPLS055	Effects of Phase 1 Insertion Devices at the ALBA Project	undulator, resonance, lattice, electron	3407
	M. Belgroune, M. Muñoz CELLS, Bellaterra (Cerdanyola del Vallès)
	The ALBA new third generation light source offers a large number of straight sections to its community of users. Three types of straights will be available, 4 of 8 m, 12 of 4.2 m and 8 of 2.6 m. The compact lattice of a 268 m circumference ring is now mature and its main components are already fixed. We discuss here the beam dynamics studies performed for Phase 1 Insertion Devices (IDs) where two helical devices HU71, two in-vacuum undulators U21 and a multipole wiggler have been modeled using the kick map approach. This allowed defining the suitable compensation scheme in a machine where the vertical focusing is mainly controlled by the gradients in the dipole magnets. In addition, the Touschek lifetime computations and the identification of the limiting resonances using Frequency Map Analysis showed how strong the working point is in the presence of these IDs. Tolerances on the multipolar components due to the fields' roll-off have also been defined and allowed the progress in the IDs design.

THPLS062	Sub-picosecond X-ray Source FEMTO at SLS	laser, SLS, undulator, storage-ring	3427
	A. Streun, A. Al-Adwan, P. Beaud, M. Böge, G. Ingold, S. Johnson, A. Keller, T. Schilcher, V. Schlott, T. Schmidt, L. Schulz, D. Zimoch PSI, Villigen
	The FEMTO source at the SLS (Swiss Light Source) employs laser/e-beam 'slicing' to produce sub-picosecond x-ray pulses for time resolved pump/probe experiments. The final design of the source, the status of construction and commissioning as well as the first experimental results will be presented.

THPLS089	Comparison of Double Bend and Triple Bend Achromatic Lattice Structures for NSLS-II	lattice, emittance, sextupole, dipole	3484
	S.L. Kramer, J. Bengtsson, S. Krinsky BNL, Upton, Long Island, New York
	The Double Bend Achromatic (DBA) and the Triple Bend Achromatic (TBA) lattice have been studied rather extensively for use for the NSLS-II storage ring. The well known advantage of the TBA compared to the DBA is that the emittance per period has the potential to be considerably lower. However, the DBA has been chosen more often due to the greater number of ID straight sections for the users for a desired emittance. We present a comparison of these lattice structures based on the optimization of the non-linear driving terms from the chromatic sextupole and the ease of compensation of these terms using the higher order achromatic cancellation.

THPLS090	Consideration of the Double Bend Achromatic Lattice for NSLS-II	lattice, emittance, insertion, dynamic-aperture	3487
	S. Krinsky, J. Bengtsson, S.L. Kramer BNL, Upton, Long Island, New York
	We present the results of a study of the Double Bend Achromatic (DBA) lattice as a possible choice for the NSLS-II storage ring. The DBA possesses a large number of straight sections with easily tunable beta functions which can be used for insertion device sources and for damping wigglers to reduce emittance. The dispersive regions can be designed to minimize the strength of the chromatic correction sextupoles. A key constraint is the imposition of a limit on circumference which is closely tied to cost. We discuss optimization of the dynamic aperture by minimizing the non-linear driving terms using high-order achromatic cancellation in the non-linear lattice.

THPLS121	Status of the PETRA III Damping Wigglers	damping, vacuum, PETRA, DESY	3565
	M. Tischer, K. Balewski, M. Seidel, L. Yongjun DESY, Hamburg A.A. Krasnov, V. Kuzminykh, E. Levichev, P. Vobly, K. Zolotarev BINP SB RAS, Novosibirsk
	After mid-2007, the present PETRA storage ring at DESY will be reconstructed towards a dedicated third generation light source operating at 6 GeV. An emittance reduction down to 1 nm can be achieved by means of damping wigglers. 20 permanent magnet wigglers will be installed in two of the long straights of the machine. The wiggler segments are compact fixed gap devices surrounded by iron enclosures to reduce the leakage flux. Each device will provide a damping integral of 4 T2m per segment and generate a synchrotron radiation power of 42 kW. Every wiggler segment will be followed by an SR-absorber to protect all downstream components, the accumulated on-axis power of about 200 kW will be taken up by a final absorber at the damping section end. The wiggler's magnetic design, field properties and correction schemes have previously been proven by a one period long prototype. At present, the first full length (4m) prototype wiggler has been assembled and characterized magnetically.

THPLS124	The Second Generation of Superconductive Insertion Devices for ANKA	undulator, insertion, insertion-device, radiation	3574
	A. Bernhard, T. Baumbach, D. Wollmann University of Karlsruhe, Karlsruhe S. Casalbuoni, MH. Hagelstein, R. Rossmanith FZK, Karlsruhe T. Schneider FZ Karlsruhe, Karlsruhe F. Schoeck, E. Steffens, M. Weisser University of Erlangen-Nürnberg, Physikalisches Institut II, Erlangen
	After the superconducting undulator SCU14 was installed and successfully started operation at ANKA in spring 2005, a second generation of superconducting insertion devices for ANKA is under development. The ANKA soft x-ray analytics beamline WERA is planned to be equipped with a superconducting elliptically polarising undulator (SCEPU) with electrically tunable polarisation, and a superconducting combined undulator/wiggler (SCUW) capable of period tripling will serve as the source for the planned ANKA imaging beamline. In this paper the studies on the ANKA superconducting EPU and the status of the SCUW-project will be reviewed.

THPLS127	Plans for a 2nd Insertion Device in CAMD	multipole, lattice, TESLA, quadrupole	3583
	V.P. Suller CCLRC/DL/ASTeC, Daresbury, Warrington, Cheshire M.G. Fedurin, P. Jines, D.J. Launey, T.A. Miller, Y. Wang LSU/CAMD, Baton Rouge, Louisiana
	To allow the possible installation of a 2nd Insertion Device in the CAMD Light Source the lattice optic needs to be changed. The present configuration has a small vertical beta function in the long straight containing the 7T wiggler. The new optic will give small vertical beta at two long straights which are diametrically opposite. Test results with the new optic are presented together with the measured beam parameters. These are used to predict the photon beam performance for several types of Insertion Device which could be installed.

THPLS128	Overview of Diamond IDs for Phase 1	DIAMOND, insertion, insertion-device, factory	3586
	E.C. Longhi, A.I. Baldwin, S.P. Mhaskar, J.C. Schouten, C.W. Thompson Diamond, Oxfordshire
	Diamond Light Source is a 3GeV synchrotron currently under construction in the UK, which will be operational in early 2007. It is a third generation light source comprising 22 usable straight sections for insertion devices. Phase 1 of beamline construction will include eight Insertion Devices: five PPM in-vacuum undulators, two APPL·10^-2 devices to be installed in the same straight, and one 3.5T superconducting wiggler. This paper describes the current status of construction and magnetic measurements for each of the Phase 1 devices.

THPLS134	A General View of IDs to be Installed at ALBA on Day One	undulator, polarization, ELETTRA, radiation	3598
	J. Campmany, F. Becheri, D. Bertwistle, D. Einfeld, J. Marcos, V. Massana ALBA, Bellaterra Z. Martí LLS, Bellaterra (Cerdanyola del Vallès)
	The new 3rd generation synchrotron radiation source ALBA to be built nearby Barcelona is planned to start operation in 2009 with several different insertion devices installed in the storage ring either from "day one" or within the first year of operation. The list of high-priority insertion devices includes: 2 planar PPM SmCo in-vacuum undulators with the period of 21.3 mm; 2 Apple-II type PPM NdFeB undulators with the period of 71 mm; 1 superconducting planar wiggler with the period of 30 mm and a maximum field of 2 T, and a 1 conventional wiggler with the period of 65 mm and a maximum field of 1.55 T. The emission of these undulators covers wide spectral range extending from hard X-rays to UV. Pre-design of the IDs was done by ALBA. The construction will be done by industrial companies and institutions with production capabilities. ALBA will set up a magnetic measurement laboratory for the acceptance tests. The paper will present peculiarities of the magnetic design, calculated maximum-flux spectra and associated heat load in various modes of operation.

THPLS139	In-Achromatic Superconducting Wiggler in Taiwan Light Source: Installation and Test Results	storage-ring, cryogenics, vacuum, electron	3613
	C.-H. Chang, C.-C. Chang, H.-P. Chang, H.-H. Chen, J.-R. Chen, T.-C. Fan, G.-Y. Hsiung, M.-H. Huang, C.-S. Hwang, J.C. Jan, F.-Y. Lin NSRRC, Hsinchu
	In order to increase more high flux x-ray photon beams for the Taiwan Light Source, the achromatic superconducting wiggler has been installed and tested in a 1.5 GeV storage ring. The 3.1 Tesla superconducting wiggler will be operated in a 4.5 K liquid helium cryogenic system. In this work, the operation experience and test results of the achromatic superconducting wiggler are described.