BL09-20-EQS10000-R00-signed.pdf

BL09-20-EQS10000

BL09 CORELLI UPGRADED FINE RADIAL COLLIMATOR EQUIPMENT SPECIFICATION

BL09-20-EQS10000

Revision 0

Corelli Upgraded Fine Radial Collimator Equipment Specification

Author(s)

Cassie Scully Sabens

Arianna Minelli Feng Ye

Zach Morgan

Date Published:

11/19/2025

Prepared by

OAK RIDGE NATIONAL LABORATORY

Oak Ridge, TN 37831-6283 managed by

UT-BATTELLE, LLC

for the

US DEPARTMENT OF ENERGY

under contract DE-AC05-00OR22725

This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

1.1 Document Approvals

Rev 00 Rev 01 Rev 02 Rev 03 Approvals

Project Scientist Lead Group Lead Single Crystal Diffraction

Project Engineer Lead Instrument Engineering Group Lead

Section Head Diffraction Group Lead SNS Science Support

Technical Concurrence Scientific Associate Instrument Scientist Instrument Scientist Instrument Engineer

Revision Description of Changes 00 Initial Release

4:54 pm 04-Dec-2024

ARIANNA MINELLI | MINELLIA@ORNL.GOV

4:35 pm 10-Dec-2024

MICHELLE EVERETT | EVERETTSM@ORNL.GOV

1:11 pm 05-Dec-2024

DUMINDA LIURUKARA | LIURUKARADS@ORNL.GOV

2:01 pm 05-Dec-2024

CASSIE SCULLY SABENS | SABENSCS@ORNL.GOV

12:55 pm 10-Dec-2024

MATTHEW G. TUCKER | TUCKERMG@ORNL.GOV

3:19 pm 31-Dec-2024

AMY JONES | BLACKA@ORNL.GOV

11:05 am 05-Dec-2024

FENG YE | YEF1@ORNL.GOV

4:20 pm 10-Dec-2024

RICK GOYETTE | GOYETTERJ@ORNL.GOV

1:08 pm 10-Dec-2024

ZACHARY MORGAN | MORGANZJ@ORNL.GOV

1:10 pm 05-Dec-2024

DUMINDA LIURUKARA | LIURUKARADS@ORNL.GOV

10:29 am 05-Dec-2024

CASSIE SCULLY SABENS | SABENSCS@ORNL.GOV

Contents

1.1 Document Approvals

Contents

2. Introduction

3. Scope

4. Equipment Specification

5. Quality Assurance

5.1 Access For Source Surveillance Inspections

5.2 Calibration Program

5.3 Control Of Non-Conformances

5.4 Manufacturing Plan

5.5 Deviations

5.6 Examination, Testing And Inspection

5.7 Electronic Documents

6. Packaging And Shipping

7. Documentation

7.1 Submittals

7.2 Language

7.3 Inspection Reports

8. Verification And Acceptance

9. Attachments

2. Introduction

The CORELLI Spectrometer at SNS has requested a new Fine Radial Collimator (FRC) to be designed and procured to accommodate high field magnet sample environments. These high field magnet sample environments do not fit inside the existing collimator assembly. The CORELLI team would also like to take this opportunity to re-evaluate the performance of the existing collimator using instrument performance as the original FRC was designed prior to operation.

3. Scope

This specification defines requirements for materials of construction, fabrication, inspection, and delivery to the Company of a complete Fine Radial Collimator Assembly. The Fine Radial Collimator Assembly shall be installed in the CORELLI Spectrometer Instrument.

The Fine Radial Collimator Assembly, hereinafter referred to as the Collimator Assembly or FRC, is described in the following sections. Any minor part not specifically defined, but required for complete assemblies, shall be considered included herein, unless specifically excluded.

Herein, Seller refers to parties responsible for providing the fabricated Collimator Assembly within the scope of this specification. Company refers to UT-Battelle, LLC and its representatives including the

SNS.

The Seller is responsible for fabrication, inspection, packaging, and shipping a complete Collimator Assembly in accordance with the requirements of this specification. Any exceptions to this specification shall be clearly noted as such in the Seller’s proposal documentation. Where exceptions are taken, the Seller shall propose alternatives.

4. Equipment Specification

The CORELLI Sample Scattering Vessel (SSV) consists of a sample chamber and a detector chamber. The chambers share the same vacuum space. The Collimator Assembly will mount inside the sample chamber of the vessel. Renderings of the CORELLI Vessel and these vacuum spaces are shown in Figure 1.

Figure 1: External isometric view of CORELLI Sample Scattering Vessel

DETECTOR CHAMBER

SAMPLE CHAMBER

Figure 2: Plan view of CORELLI detector and sample vessel

The Collimator Assembly is composed of neutron absorbing blades with an angular separation of

1.3 degrees (blade center to blade center) as illustrated in Figures 3 and 4. The blades consist of thin supporting foils coated with neutron-absorbing material. The blade-to-blade angular separation and the alignment of the blades in a true radial direction are critical to the neutronic performance of the collimator. The final blade separation of 1.3 degrees should be identical over the entire span of the collimator, and the locational tolerance should be as tight as possible. The Seller shall clearly specify in the proposal submittal their fabrication tolerances for angular separation between blades, the angular deviation from a true radial direction, and the tolerances of the precision mounting system in the horizontal plane and tilt. The Seller shall submit a dimensional inspection report prior to shipping the Collimator Assembly. The documentation shall include the as-measured average deviation of the angular separation between blades, the angular deviation from a true radial alignment of each blade, and coating thickness at a random location on each collimator foil.

The Seller shall provide 24 additional blades to the Company. The blades shall be packaged in a rigid container.

Figure 3: Section and isometric view of proposed fine radial collimator design

Figure 4: Details of fine radial collimator angular spacing

Collimator foils shall be of the stretched-film type. The foil designs shall be optimized to minimize thickness. The neutron absorber material shall be isotopically- enriched boron 10 carbide powder enriched to 97% or greater. The powder shall be mixed with a vacuum compatible binder component to achieve a boron 10 carbide mixture density of 0.78 gram/cm3. To achieve the necessary attenuation, each side of each blade foil must be coated to a minimum thickness of 0.035 mm. The Seller shall clearly specify in their proposal submittal the following information:

• Foil material type

• Foil thickness

• Boron 10 carbide enrichment %

• Coating thickness (coated blade thickness minus foil thickness)

• Boron 10 carbide grit size

• Areal density (grams/cm2) of boron 10 expected for both sides of a typical blade

The Company requests the Seller to comment upon the design capability for individual replacement blades to be installed and tensioned. The Company will consider providing suitable enriched boron 10 carbide powder for the Seller to use in the coating formulation. The boron 10 carbide absorber material should be separately quoted in the bid. Particle size, enrichment percentage, and total mass volume requirements shall be provided.

The inner and outer radii of the collimator housing are shown on drawing BL09-20-M8U-8709- A10000 and in Table 1. The collimator blades should occupy as much of this volume as possible. The minimum height of the collimator blades at the outer radius is 28 inches. The Company requests the

Seller to specify in their proposal submittal the shape and size of the blades which will occupy the collimator housing volume.

The Collimator Assembly will reside in the vicinity of high neutron and gamma fields as well as large magnetic fields. The structure of the radial collimator shall be constructed of non-magnetic materials, either stainless steel or aluminum. Aluminum is the preferred choice due to its lighter weight and nonmagnetic properties. The Company requests the Seller to specify in their proposal submittal the material alloy for the proposed collimator body and structure. The Collimator Assembly will be operated in a high vacuum (10-6 Torr) environment, so the Seller shall use suitable materials and provide a means for trapped air to escape from mechanical interfaces.

The Collimator Assembly will mount on an oscillation drive system that will oscillate over two full collimator blade separations, i.e. +/- 2.6 degrees at a frequency of approximately 3 cycles per minute.

The oscillation drive system is not part of this procurement.

During maintenance or when large sample environments are in use, the radial collimator will be removed from the instrument. Holes to accommodate both alignment and lifting features (tapped in the frame) are at locations shown on drawing BL09-20-M8U-8709-A10000.

A comprehensive list of requirements is shown in Table 1.

Requirements

4.1 All components must be compatible with a vacuum level of less than or equal to 1e-7 Torr.

4.2 All materials used must be compatible with the expected stray magnetic flux density of 600 Gauss.

4.3 The frame of the fine radial collimator shall have an inner radius of 16.5 inches, and an outer radius of

25.5 inches.

4.4 The collimator shall consist of 2 pieces. One 80 degree piece and one 97 degree piece.

4.5 The blade vertical active area shall be 32 inches, and the overall height shall be no more than 38 inches.

4.6 The blade width shall be 9 inches.

4.7 The blade angle of the fine radial collimator shall be 1.3°.

4.8 Blade Foil Thickness shall be no thicker than 0.095 mm to reduce the effect of shadowing on the detectors.

4.9 Each side of each blade foil shall be coated to a minimum thickness of 0.025 mm and shall not exceed

0.035 mm.

4.10 The tilting of the blades shall not be more than 0.05 degrees.

4.11 Blades must be flat and straight to minimize blockage of the primary scattering neutron beam.

4.12 The blade coating shall absorb neutrons between 0.64 Å (energy=200 meV) and 2.86 Å (energy=10 meV).

4.13 Minimize the shadowing from any structural components in the collimator on the detector.

4.14 The collimator or pieces of the collimator and the lifting fixture shall fit through the D32 sample environment flange which is 32 inches in diameter.

4.15 Collimator shall have covers that can be placed on it when moved in and out of position.

4.16 Collimator shall be mounted on a baseplate with precision mounting provisions.

4.17 The mounting structure shall allow for precision alignment within 0.1 mm in the horizontal plane and

0.15 out of plane (tilt).

4.18 The collimator shall not create forces that exceed 1700 N in the horizontal and 5000N in the vertical.

The company shall perform analyses on the seller’s design to validate this requirement.

4.19 The collimator assembly shall have mounting provisions on the top piece that accommodate a minimum bolt size of M10.

Table 1: List of Requirements for the Fine Radial Collimator Assembly

5. Quality Assurance

The Seller shall submit a Quality Assurance (QA) program or “Quality Control System” for evaluation with the quote. The QA Program shall address at a minimum the following elements: A written QA program, training and qualifications, improvement process, documents and record control program, control of procedures, design control, procurement control, and an inspection and test program. The Seller shall ensure that all work is done in accordance with this QA Plan. The Seller is responsible for the administration and performance of all testing, inspections, and examinations, whether performed at the Seller’s facilities or at other facilities. The Company reserves the right to witness all tests, inspections, and examinations.

5.1 Access for Source Surveillance Inspections

As part of the Company’s quality assurance program, source surveillance activities may be conducted at the Seller’s facility or any sub-tier facility that the Company determines necessary to ensure that quality objectives are met. Such surveillance may include auditing and monitoring of production processes, in- process inspection and controls, chemical and physical certifications, final inspection and tests, preparation for shipment, and review of certification data. The Seller shall provide the Company representatives access to all data and operating areas pertinent to the contract. Source surveillance by the Company representative shall not constitute product acceptance by the Company and shall in no way relieve the Seller of the responsibility to furnish acceptable items.

5.2 Calibration Program

All equipment used in tests, inspections, and examinations shall be calibrated in accordance with the equipment manufacturer’s recommendations. All equipment shall be tagged in some manner to indicate the date of last calibration and the status of that calibration.

Procedures shall be established for correction of out-of-tolerance equipment. The procedures shall provide for tagging and removal of such equipment from the work area.

Procedures shall be established for re-testing or re-inspecting when out-of tolerance equipment has been used for testing or inspection.

Control of Non-Conformances

The Seller may use their existing nonconformance program to identify, report, and recommend disposition of all non-conformances, but dispositions that would leave any remaining nonconformity must be submitted to the Company for approval. The request should identify the affected item(s) by name and serial number, citing the drawing/specification number and revision number containing the specific requirement that has not been met. It should state the number of nonconforming items being reported. The request should include a description of the nonconformity, identifying requirement(s) not met. The supplier may attach a description of the cause and a corrective action plan and schedule if pertinent.

Note: The issuance and acceptance of such a request in no way limits or affects the warranty provision of the Agreement. Such a request shall not establish a precedent or obligation to accept existing or future items not conforming to all provisions of the Agreement.

5.3 Manufacturing Plan

The Seller shall include a draft manufacturing plan in their proposal submittal. The Seller shall submit a final Manufacturing Plan for Company approval prior to the start of fabrication. The Manufacturing Plan shall include, but shall not be limited to, the following items:

• A milestone schedule, showing how the Collimator Assembly will be delivered by the contract date. The milestones shall include material procurement, fabrication, assembly, inspection, and shipping.

• Inspections and examinations to be performed (Inspection Plan).

• Identification of hold points.

• Subcontractors to be used, if any, and means of controlling quality at subcontractors.

5.4 Deviations

The Seller may propose deviations from the specifications, drawings or other technical requirements of the procurement. Where time is a consideration, the Seller may communicate the proposed deviation directly to the engineer or technical lead, with a copy to the Company’s buyer. The engineer or technical lead will evaluate the technical aspects and make recommendations to the buyer, who will communicate acceptance or disapproval to the Seller. The request should identify the affected items, drawing/specification number and revision number, a description of the proposed deviation, and justification for it. The request for deviation shall be submitted to the Company prior to making any change.

5.5 Examination, Testing and Inspection

The Seller shall notify the Company in writing of inspection activities at least 30 days prior to the start of such activities. The Company will provide the Seller with a document that contains the requirements for inspections. All inspections or examination reports shall contain the following information, as a minimum:

• Unique report number

• Job title

• Inspection date

• Equipment identification

• Specific inspection or examination, including procedure designation

• Identification of measuring and test equipment used and their latest calibration dates

• Inspection results

• Actions taken because of any discrepancies noted during the inspection

• Signature or initials of the person performing the inspection or examination and his/her qualifications, and the signature or initials of the person witnessing the test.

5.6 Electronic Documents

Wherever feasible, all documents shall be submitted in an electronic format acceptable to the SNS Document Control Center, in addition to any other formats. Adobe Portable Document Format (PDF) has been listed as an acceptable format for all documents, including drawings that would normally be printed on paper.

6. Packaging And Shipping

The Seller shall submit a packaging and shipping plan to the Company for approval prior to shipment. The Collimator Assembly shall be packaged and shipped by the Seller to the Spallation Neutron Source site in Oak Ridge, Tennessee, USA. The Company reserves the right to reject any or all items if the Seller deviates from the approved plan. The packaging and shipping plan shall meet or exceed the following requirements:

The packing and shipping plan shall include provisions for sealing, securing, and shipping the Collimator Assembly. Special attention shall be made to protect the delicate blades from shock or impact damage. An appropriate shock timer sensor or similar recording device shall be attached to the collimator to indicate possible abusive handling during shipping. A typical sensor is manufactured by Instrumented Sensor Technology Inc., Okemos, Michigan 48864 USA.

The Collimator Assembly shall be totally enclosed and secured in a wooden crate that is adequately designed to protect against possible shipping damage. Internal packaging shall further enhance physical and environmental protection for the Collimator Assembly. The outside of the crate shall be plainly and permanently labeled with the following:

• Gross Package Weight

• Package Identification Number

• Seller identification

• Collimator Assembly serial number (if any)

• Company’s specification number

• Company’s subcontract number

• Company’s shipping address

• Attention: Cassie Scully

The Seller’s packaging crates shall be designed and built to accommodate handling by fork trucks.

The Company will inspect each shipping crate upon arrival. Any damage will be documented and, if necessary, the Seller will be contacted to establish a plan of resolution. The Seller shall notify the Company of a shipping date not less than thirty (30) working days prior to shipment. The Seller shall transport the Collimator Assembly F.O.B. via a commercial carrier.

7. Documentation

The Collimator Assembly shall be fabricated in accordance with all requirements of this specification and drawing BL09-20-M8U-8709-A10000. The Seller shall submit a final detailed design for the Collimator Assembly to the Company for review. The final design shall be approved prior to the start of fabrication. Once approved, this design shall constitute the official documentation from which deviation requests and non- conformance reports are required. The final design package shall be in the form of engineering/fabrication drawings and specifications and a three-dimensional CAD model. Any deviations or non-conformances from this specification or from dimensions or tolerances shown on drawing BL09-20-M8U-8709-A10000 must be submitted for approval by the Company.

7.1 Submittals

Seller shall submit documentation as referenced previously in this specification and listed again in the following table. All documents listed in this table must be approved by the Company prior to shipping the Collimator Assembly.

DOCUMENT WHEN REQUIRED SECTION

Quality Assurance Program – Unless previously provided With quote/proposal 5.0 Draft Manufacturing Plan With quote/proposal 5.4 Exceptions to Specification and Drawing BL09-20-M8U-8709-A10000 With quote/proposal 7.0 Fabrication Tolerances With quote/proposal 4.0 Foil and Coating Specifications With quote/proposal 4.0 Foil Replacement Procedure With quote/proposal 4.0 Neutron Absorber Material Specifications With quote/proposal 4.0 Foil Shape and Size With quote/proposal 4.0 Materials of Construction With quote/proposal 4.0 Request for Deviation Prior to making change 5.5 and 7.0 Non-conformance Reports At time of occurrence 5.3 and 7.0 Final Manufacturing Plan Prior to fabrication 5.4 Seller’s Final Design Package * Prior to fabrication 7.0 Packaging and Shipping Plan Prior to shipping 6.0 Dimensional Inspection Documentation Prior to shipping 4.0 Seller’s Certificate of Compliance Prior to shipping 8.0

* Fabrication shall not start before the final design package is approved by the Company.

7.2 Language

All supporting documentation shall be in English. Translated versions of the original documents signed by the responsible personnel are acceptable.

7.3 Inspection Reports

Inspection documentation and reports shall be performed in accordance with Specification Section 4.6.

8. Verification And Acceptance

The following shall be the basis for final acceptance:

1. Receipt and approval of all data as required in this Equipment Specification and listed in Section 6.

2. Confirmation by a Company representative that the Seller produced the Collimator Assembly in accordance with this Equipment Specification.

3. Receipt of a Certificate of Compliance (COC) signed by a representative of the Seller, verifying that the Collimator Assembly conforms to the engineering drawings, approved deviations, and this specification. The COC shall be submitted to the Company for written approval prior to shipment.

9. Attachments