Addendum 02.doc

Kimberly M. Rojas Procurement Specialist 2 Financial Management and Procurement Services

Argonne National Laboratory

9700 South Cass Avenue, Bldg. 201

Lemont, IL 60439

(630) 252-5609 krojas@anl.gov

6/13/2024

TO ALL OFFERORS:

Subject:

Addendum 02 Request for FORMDROPDOWN No. 4-B160-P-00193-00 Addendum No. 02 Attached herewith for your information and use in preparing your proposal for subject project is one (1) copy of Addendum No. 02. Any revisions or questions and answers are listed on page two (2).

Kindly acknowledge receipt of this Addendum by signing and returning one (1) copy of this letter.

Please email Procurement at krojas@anl.gov.

Sincerely, Kim Rojas Kimberly M. Rojas Procurement Specialist 2 Procurement Department

Receipt Acknowledged:

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File

CF

Addendum No. 02

TO

REQUEST FOR FORMDROPDOWN

4-B160-P-00193-00

FOR

Argonne National Laboratory

BLDG. 201 OCF

9700 S. Cass Ave.

Lemont, IL 60439

6/13/2024 This addendum is being issued to modify the date proposals are due and answers to questions as follows:

Due date for proposals has been revised to reflect July 15, 2024.

Questions / Answers

Q: For the quadrupole triplet, the number of lenses in the table is listed as three. Is this requesting three quadrupole triplets (9 total quadrupoles) or three quadrupoles total (one triplet)?

A: Only one triplet = 3 lenses.

Q: The maximum field listed for the septum magnet is specified as < 5 Gauss. Is there a minimum distance from the magnet that you can provide for this specification?

A: The septum will be placed next to a superconducting buncher cavity, so 5 Gauss right outside the magnetic shield and should die down as you go farther.

Q: Dipole:

Is the maximum physical length along the ideal beam trajectory or in a cartesian plane?

A: That max physical length is in cartesian coordinates.

Q: Is there any flexibility to increase the limitation of this longitudinal dimension? We ask because simulations show this dipole running into saturation and a larger coil footprint may be required for thermal management.

A: The space is tight, we may have one inch to spare, so 72.5 cm instead of 70 cm.

Q: Septum:

Would like to know the distance from magnet to the non-defected beam. Alternatively, where is the region where the field needs to be less than 5 Gauss)

A: The limitation is not the non-deflected beam but rather a superconducting cavity used for bunching which is very close. The 5 Gauss we ask for is right off the magnetic shield of the septum and should die off from there.

Q: Quadrupole

Is there flexibility in the maximum physical lengths of both the individual magnets and the triplet? 25cm (90 cm – 2 * 32.5 cm) for a single quadrupole and 90cm for a triplet is extremely tight.

A: The space is very tight, maybe one or two inches to spare (3-5 cm).

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