A3. Specification EIC-PSG-SPC-003.pdf

Electron-Ion Collider, Brookhaven National Laboratory

Doc No. EIC-PSG-SPC-003 Author: Liang Dong Effective Date: June 2, 2025 Review Frequency: N/A

Specification: HSR Strip-line Kicker Matched Loads (Attenuators) Revision: 00

TECHNICAL SPECIFICATION for the

HSR Strip-line Kicker Matched Loads

(Attenuators) Quality Classification: A-3

Prepared By:

___________________________________________ Date: __________________ Liang Dong, Pulsed Power Engineer

Reviewed By:

Jon Sandberg, Accelerator Systems Deputy Division Head

Don Bruno, Power Supplies Group Leader

Chuyu Liu, L3 for Hadron Injection System

Marcel Romero, Procurement Liaison Engineer

Christina Sullivan, Quality Assurance Engineer

Charles Schaefer, ESH Manager

Docusign Envelope ID: 1359BE2C-1818-461C-AED9-29C16B955F00

6/2/2025

6/2/2025

6/2/2025

6/3/2025

6/2/2025

6/2/2025

6/2/2025

Approved By:

Joseph Tuozzolo, Technical Systems Division Director

Vadim Ptitsyn, L2 Hadron Ring Manager

Docusign Envelope ID: 1359BE2C-1818-461C-AED9-29C16B955F00

6/3/2025

6/4/2025

REVISION HISTORY

Revision # Effective Date Summary of Change

00 6/2/2025 Initial Release

Table of Contents

LIST OF ACRONYMS

1 SCOPE

1.1 Background

2 APPLICABLE DOCUMENTS

3 REQUIREMENTS

3.1 Technical/Performance Characteristics

3.2 Environmental Conditions

3.3 Code/Standard Compliance

3.4 Environment, Safety and Health (ESH)

4 VERIFICATION

LIST OF ACRONYMS

ASME American Society of Mechanical Engineers BNL Brookhaven National Laboratory BSA Brookhaven Science Associates EIC Electron-Ion Collider EMC Electromagnetic Compatibility ESH Environment, Safety and Health HSR Hadron Storage Ring IEC International Electrotechnical Commission

Technical Specification for the HSR Injection Strip-line Kicker Matched Loads (Attenuators)

1 SCOPE

This specification defines the technical requirements for two 50 ohms attenuators to be used at the Electron-Ion Collider (EIC) at Brookhaven National Laboratory (BNL) managed by Brookhaven Science Associates (BSA).

1.1 Background

The EIC Project will design, build, and install the accelerator hardware for a new electron storage ring, an electron injector, and modifications to the hadron ring required to produce an electron-ion collider and infrastructure. It will include one interaction region, with an allowance for a second, and one detector. The facility is designed to meet requirements to ensure high reliability and availability for the user program.

These two attenuators will be used as matched loads for a strip-line kicker operating at +/- 30kV which is required for the injection of the hadron beam into the Hadron Storage Ring (HSR). The output signal from the attenuators will be used to measure the voltage on the strip-line electrodes.

2 APPLICABLE DOCUMENTS

The following specifications, standards and drawings form a part of this specification to the extent specified herein. Unless otherwise specified, the applicable revision level of these documents shall be that in effect on the date of the solicitation or contract. Exceptions must be approved in writing by BSA.

In the event of a conflict between the applicable documents and this specification, the Contractor shall immediately notify the BSA Contractual Representative who shall in each instance determine which document takes precedence and advise the Contractor accordingly. Failure to notify BSA of a document conflict shall not relieve the Contractor’s responsibility to ensure full compliance to all requirements.

Document Number Document Title

IEC 61000-6-2 EMC Immunity

IEC 61000-6-4 EMC Emissions

3 REQUIREMENTS

The required operating parameter for these attenuators is provided in this section.

3.1 Technical/Performance Characteristics

The attenuators mode of operation shall be Pulsed, capable of sustaining a 1 Hz repetition rate.

The attenuators shall fulfill the following specific requirements while free standing in separate enclosures at ground potential:

Parameter Requirement Rated operating voltage +/ – 30 kV Maximum input voltage +/ – 33 kV Input Impedance 50 ohms +/- 1% Output impedance 50 ohms +/-1% Maximum peak power 20 MW Maximum average power 10 W Input power connection Female Connection Compatible with cable

RG 217

Output monitoring connector Female Coaxial N Type Connector Bandwidth DC to 1 GHz Attenuation 40 dB +/-1% Insulation medium Transformer oil Cooling Air Cooling Output Ports voltage accuracy +/-1%

3.2 Environmental Conditions

The attenuators shall meet all requirements within this specification under the following conditions:

a. Ambient Air Temperature in the range of 18-35°C.

b. Humidity, 90 % RH maximum, with range of +/- 5 %, non-condensing.

c. The elevation of the attenuator will be 0-45 meters.

3.3 Code/Standard Compliance

The attenuators should be designed to be compatible with the following EMC regulations in force, and should neither be perturbed nor perturb other installations according to these regulations:

a. EMC Immunity: IEC 61000-6-2.

b. EMC Emissions: IEC 61000-6-4.

3.4 Environment, Safety and Health (ESH)

Identification of hazards, and their mitigation, shall occur during all stages of the life of the Equipment including design and testing. Identification of means to eliminate or manage each hazard shall be provided based on the following hierarchy:

a. Eliminate the hazard or manage the hazards in the following hierarchy.

b. Substitute with something less hazardous,

c. Engineer – mitigate the severity of the hazard,

d. Administrative controls (e.g. training, procedures)

4 VERIFICATION

Appropriate inspection/tests shall be performed to ensure Equipment conforms to all requirements in section 3 of this specification. A final test report is required, and it shall include all the results of the pre-shipment tests.

4 VERIFICATION