2. AL-1887-9968_SR_BPM_flexible_jumper_cable_ACL_docx.pdf

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BPM Cables - Flexible LMR for ALS-U
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AA-2026-05
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About this file

This is an Acceptance Criteria List (ACL) document for the Advanced Light Source Upgrade Project at Lawrence Berkeley National Laboratory, establishing quality assurance standards for SR BPM jumper cables.

The document specifies acceptance criteria for 1,068 units of Flexible LMR-195 coaxial cables designated for the Beam Diagnostics group. The acceptance criteria are classified at the "High" level of care and require four mandatory inspections and tests, all supported by document AL-1881-8085. Item 1 requires visual inspection to verify correct labeling, matching specifications, and absence of cable damage, with review of inspection reports and certificates for compliance. Item 2 mandates length measurement using Time Domain Reflectometry (TDR), with tolerance of ±10 picoseconds. Item 3 requires S21 coefficient measurement using a Vector Network Analyzer (VNA), with specifications of ≥0.94 and ±0.0015 at 500 MHz. Item 4 calls for connector type verification and measurement of connector and termination quality using TDR, with zero faults permitted. The Beam Diagnostics group serves as the verifying entity for all tests. Each test line item includes fields for documenting NonConformance Reports (NCRs) if failures occur, pass/fail determination, date, and inspector initials. The document was prepared by Changchun Sun (CAM and Technical Lead) in February 2026 and approved by Jiani Niu (QA Manager) on March 30, 2026.

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Text version

Advanced Light Source Upgrade Project Lawrence Berkeley National Laboratory

All officially released LBNL documents are watermarked and contain LBNL Document Control Center release information in the lower-left corner of the document's pages.

Printed hard copies of this document are for reference only.

SR BPM Jumper Cable ACL

Release Date: Mar 30 2026 1:54:53 PM PDT

Document Number: AL-1887-9968 Revision: A

Document Status: Released

Document Type: ACCEPTANCE CRITERIA LIST (ACL)

Category Code: AL7001

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Downloaded by: Changchun Sun at April 02, 2026 08:45:16

AL-1887-9968 Rev. A Doc. Status: Released Page 2 of 4

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TABLE OF CONTENTS

1 Revision History2

2 Approvals2

3 Abbreviations and Acronyms2

4 Authorizing Document2

5 Reference2

6 Acceptance Criteria Listing Form3

1 REVISION HISTORY

Rev. CM Number Description of Change A Baseline B

2 APPROVALS

The following individual(s) shall approve this document:

Approver Project Role Changchun Sun CAM and Technical Lead Jiani Niu QA Manager Windchill Approved / Concurred By jianiniu

3 ABBREVIATIONS AND ACRONYMS

ALS Advanced Light Source QA Quality Assurance

4 AUTHORIZING DOCUMENT

LBNL QA Plan PUB 3111: https://commons.lbl.gov/display/rpm2/Quality+Assurance+Policy

LBNL ALS-U Quality Assurance Plan, AL-1024-3173, https://dcc.lbl.gov/download.php?filename=AL-

1024-3173A.pdf

5 REFERENCE

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6 ACCEPTANCE CRITERIA LISTING FORM

Level of Care : ☐ Very High ☒ High ☐ Medium ☐ Low

Prepared by: Changchun Sun Group: Beam Diagnostics

Email: CCSUN@lbl.gov Location: Lawrence Berkeley National Lab

Phone: 510-486-7710 Date: Feb, 2026

Part Name: Flexible LMR-195 Quantity: 1,068

Part Number: S/N (if applicable)

NCR Reviewers

Additional Remarks:

Inspect and Test SR BPM flexible (LMR195) jumper cable ci al ly R el ea se d

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AL-1887-9968 Rev. A Doc. Status: Released Page 4 of 4

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ITE

M

NO.

REQ ID /

DCC doc

CHARACTERISTIC OR TEST TO

BE CONDUCTED, VERIFIED or

WITNESSED

SUPPORTING

DOCUMENT ID VERIFYING

ENTITY

NonConformance

Report # if NCR exists

PASS / FAIL

DATE

VERIFICATION

REPORT/

INSPECTION DATA

1.

Visual inspection:

Check if the cables are correctly labeled and match specifications

Check there is no damage to the cable

Review the inspection report and certificate to ensure compliance with requirements

AL-1881-8085 Beam

Diagnostics

NCR #: PASS ☐ FAIL ☐

INITIALS DATE

2.

Measure the length with TDR.

The length shall be within +-10 ps

AL-1881-8085 Beam

Diagnostics

3.

Measure S21 coefficient with

VNA. Shall be >= 0.94 and +-

0.0015 at 500 MHz

AL-1881-8085 Beam

Diagnostics

4.

Verify connector type. Measure connector and termination quality with TDR. Shall be no fault

AL-1881-8085 Beam

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