ML23136A159

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2023 Ghana Ramp User Meeting Program Booklet
ML23136A159
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Issue date: 04/28/2023
From: Stephanie Bush-Goddard
NRC/RES/DSA
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Download: ML23136A159 (1)


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RADIATION PROTECTION COMPUTER CODE ANALYSIS AND MAINTENANCE PROGRAM 2023 Spring Users Group Meeting Fiesta Royale Hotel Accra, Ghana, West Africa April 25-28, 2023 UNITED STATES NUCLEAR REGULATORY COMMISSION Protecting People and the Environment

WELCOME Virtual Meeting Audio All participants will be muted unless directed otherwise by the facilitator.

Video All participants should have video turned off.

Meeting Recording All virtual sessions will be recorded.

The recordings may be posted on NRCs website or used internally. If you do not wish to have your voice recorded, please do not speak during the meeting. If you do not wish to have your image recorded, please turn off your camera or participate only by phone. If you speak or use a video connection, you are presumed to consent to recording and to the use of your voice or image.

Questions y Questions will be addressed at the end of the presentations.

y Please use chat to submit any questions.

y Please type your name, country, the question, and the person the question is directed to in the chat.

y If you have questions after the meeting, please email the questions to RAMP.ADMIN@pnnl.gov.

Electronic Certificates y Available per request only. Please email RAMP.ADMIN@pnnl.gov.

y In-person participants will receive their certificate during the closing session on Friday, April 28, 2023.

Technical Issues y Please email RAMP@nrc.gov.

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2023 SPRING RAMP USERS MEETING NRC, Director, Office of Nuclear Regulatory Research (RES)

Welcome to the Radiation Protection Computer Code Analysis and Maintenance Program (RAMP) Users Meeting. We are pleased that you are joining us for this meeting and for collaboration to enhance nuclear and radiation safety. RAMP is one of the important initiatives through which we engage with domestic and international colleagues. The success of our regulatory program is bolstered by strong partnerships such as the RAMP users group.

In addition to RAMP, RES plans, recommends, manages, and implements applied research, confirmatory analyses, standards development, and resolution of generic safety issues for nuclear power plants and other facilities regulated by the NRC. RES partners with other NRC offices, federal agencies, industry research organizations, international organizations, and universities to achieve our mission. We employ a wide variety of talented and diverse experts in engineering and scientific disciplines, including radiation protection, thermal-hydraulics, severe accident progression, nuclear materials, human factors and human reliability, fire protection, seismology, environmental transport, and probabilistic risk assessment. Our experts provide the technical support, analytical tools, and information necessary to accomplish NRCs nuclear safety and security mission.

Besides RAMP, RES also coordinates domestic and international cooperative nuclear safety research activities, including cooperative code-sharing programs for the following areas:

y thermal hydraulics, called the Code Applications and Maintenance Program (CAMP) y severe accidents, called the Cooperative Severe Accident Research Program (CSARP).

The NRC is pleased to host this RAMP Users Meeting and we look forward to collaboration with all attendees. Engaging with our RAMP colleagues is just one of the many ways the NRC works to ensure the safety and security of nuclear materials around the globe. These efforts are critically important as the world becomes more interconnected and interest grows in the use of nuclear technologies. We look forward to your active participation.

Raymond Furstenau Director of Nuclear Regulatory Research U. S. Nuclear Regulatory Commission 3

2023 GHANA SPRING RAMP USERS MEETING Director-General Nuclear Regulatory Authority, Ghana Greetings from the Nuclear Regulatory Authority (NRA), Ghana. I am honoured to welcome all of you to the Radiation Protection Computer Code Analysis and Maintenance Program (RAMP) users meeting taking place here in Accra, Ghana, from 25-28 April 2023 at Fiesta Royale Hotel.

This meeting is being conducted in cooperation with the United States Nuclear Regulatory Commission (USNRC). We are proud to be co-hosting such an important event with the USNRC.

NRA was established in 2016 by the Nuclear Regulatory Authority Act of 2015 (Act 895) and is the independent nuclear regulatory authority for radiation protection and nuclear safety, security, and safeguards. NRA regulates entities in Ghana that use or produce radiation, undertake research, provide radiological services to industries and medical centres, and promotes national uniformity and international best practice across all jurisdictions.

NRA has a staff strength of 97 for both administrative and technical roles. Priority areas for NRA over the past and coming years include regulatory oversight of the Ghanas research reactor and radioactive waste management facility and is working to establish a regulatory framework for the nuclear power programme.

The NRA joined the Radiation Protection Computer Code Analysis and Maintenance Program (RAMP) in 2018 to cooperate with the USNRC on radiation protection research, to benefit from the technical assistance and guidance for applying the codes, as well as exchange views regarding code improvement.

An NRA staff member used the RAMP code, RASCAL to undertake his doctoral studies on radiological consequence assessment on hypothetical release for radionuclides. There is also a growing interest of other NRA staff in the use of the RAMP codes. We look forward to sharing insights with all RAMP 2023 participants and joining in discussion about how the codes can benefit radiological assessments, environmental evaluations, and dose reconstructions.

I would like to express my sincere appreciation to the USNRC for collaborating with the NRA to host such an important international meeting. I want also to extend my appreciation to the RAMP team for their ongoing efforts towards improving the codes and assisting RAMP users by offering them the opportunity to exchange their views in a very interactive manner. I am confident that this International RAMP meeting in Accra will provide a platform for an open discussion between code developers and users of the codes around the world.

I wish you a successful meeting and I welcome you. I say Akwaaba!

Nii Kwashie Allotey, PhD, PE-GhIE Director-General Nuclear Regulatory Authority, Ghana 4

MEET THE NRC AND GHANA NRA TEAM NRC RAMP TEAM JOHN STEPHANIE EDWARD RIGEL DANIEL TOMON BUSH-GODDARD HARVEY FLORA SHAPIRO Branch Chief Senior RAMP RAMP Program RAMP Program RAMP Program Program Manager Manager Team Analyst NUCLEAR REGULATORY AUTHORITY, GHANA EMMANUEL SYLVESTER SAMUEL AMPOMAH-AMOAKO BIRIKORANG WOTORCHI 5

MEET THE PNNL AND LEIDOS RAMP TEAM PACIFIC NORTHWEST NATIONAL LABORATORY (PNNL) RAMP TEAM CAITLIN HARISH LUBA TANYA CONDON GADEY HAMILTON KOROTKOV PNNL RAMP PNNL RAMP Deputy PNNL RAMP PNNL RAMP Program Manager Program Manager Program Coordinator Program Coordinator LEIDOS RAMP TEAM WENDY FREDERIC MICHAEL CAUSEY VENUKUMAR CHINCHILLA GOODING Leidos RAMP Content DEVLANDLA Leidos RAMP Program Leidos RAMP Management Leidos RAMP Drupal Manager Operations Support Developer 6

RADIATION PROTECTION COMPUTER CODE ANALYSIS AND MAINTENANCE PROGRAM (RAMP) CODES SIERRA VARSKIN+ RASCAL NRC SNAP/

RADTRAN RADTRAD NRCDose3 GENII ARCON MILDOS Radiological Turbo Toolbox FRMAC PAVAN HABIT RESRAD DandD PiMAL VSP IMBA Table GALE Caculator DOSE ASSESSMENT CODES IN RAMP https://ramp.nrc-gateway.gov/codes 7

SPRING 2023 RAMP USERS GROUP MEETING GMT EDT DAY 1 Tuesday, April 25, 2023 Open Registration and Networking Opportunities 8:00 AM - 9:00 AM 4:00 AM - 5:00 AM Opening Session 9:00 AM - 11:30 AM 5:00 AM - 7:30 AM Working Lunch - Overview of NRCs Licensees Toolkits IMBA (Virtual) 1:00 PM - 4:00 PM 9:00 AM - 12:00 PM Social Night Out DAY 2 Wednesday, April 26, 2023 Open Registration and Networking Opportunities 8:00 AM - 9:00 AM 4:00 AM - 5:00 AM VARSKIN+ 9:00 AM - 12:00 PM 5:00 AM - 8:00 AM Working Lunch - Physical Protection of Radioactive Material ALARA in Diagnostic Imaging 1:00 PM - 4:00 PM 9:00 AM - 12:00 PM RASCAL Beginners (Virtual) 1:00 PM - 4:00 PM 9:00 AM - 12:00 PM DAY 3 Thursday, April 27, 2023 Open Registration and Networking Opportunities 8:00 AM - 9:00 AM 4:00 AM - 5:00 AM PiMAL/MCNP 9:00 AM - 12:00 PM 5:00 AM - 8:00 AM Working Lunch - NRC Licensee Toolkit VARSKIN+ Scenarios 1:00 PM - 4:00 PM 9:00 AM - 12:00 PM RASCAL Day 2 (Virtual) 1:00 PM - 4:00 PM 9:00 AM - 12:00 PM DAY 4 Friday, April 28, 2023 Open Registration and Networking Opportunities 8:00 AM - 9:00 AM 4:00 AM - 5:00 AM RAMP Code Help and Mentoring Opportunities 9:00 AM - 10:00 AM 5:00 AM - 6:00 AM Meeting Closeout 10:00 AM - 10:30 AM 6:00 AM - 6:30 AM Country to Country Meeting: Ghana 10:30 AM - 11:30 AM 6:30 AM - 7:30 AM Country to Country Meeting: Open 11:30 AM - 12:00 PM 7:30 AM - 8:00 AM Full agenda, registration, and additional information will be available on the RAMP website:

ramp.nrc-gateway.gov 8

DAY 1 - RAMP OPENING SESSION GMT TOPIC PRESENTER RAMP Opening Session 8:00 AM - 9:00 AM Registration All Stephanie Bush-Goddard 9:00 AM - 9:05 AM Opening and Housekeeping RAMP Program Manager Nii Kwashie Allotey 9:05 AM - 9:10 AM Welcome Director-General Ghana Nuclear Regulatory Authority The Genesis of Ghana Nuclear Samuel Wotochi-Gordon 9:10 AM - 9:30 AM Programme and its Current Stage Ghana Nuclear Regulatory Authority Stephanie Bush-Goddard 9:30 AM - 10:00 AM NRC: What It Is and What It Does RAMP Program Manager 10:00 AM - 10:15 AM Break All Rigel Flora 10:15 AM - 10:45 AM The RAMP Program NRC RAMP Program Manager Charlotte Rose 10:45 AM - 11:00 AM RAMP User Meeting Information Renaissance Code Development 11:00 AM - 11:30 AM Survey/Ice Breaker/Introductions All Participants Working Lunch 11:30 AM - 1:00 PM Erin Kennedy Overview of NRCs Licensees Toolkits 9

IMBA - DAY 1 INSTRUCTOR:

COLBY MANGINI, PH.D.

Renaissance Code Development (RCD), LLC The IMBA code is a suite of software modules for internal dosimetry that implements respiratory tract, GI-tract, tissue dosimetry, biokinetic and bioassay models as recommended by the International Commission on Radiological Protection (ICRP). Originally designed by the UKs Health Security Agency, the IMBA modules can estimate single or multiple intakes of different radionuclides and calculate resulting doses in the body and/or excrement for workers based on ICRP Publication 68 and US 10 CFR 835. IMBA provides a platform for conducting customized dose calculations with different user set parameters. The suite has functionalities to:

y Perform simple and more complex dose calculations y Vapor inhalation y Forward bioassay calculations, and y Intake estimation for multiple regimes.

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VARSKIN+ - DAY 2 AND DAY 3 INSTRUCTOR: VARSKIN+ is used to calculate occupational dose to the skin resulting from exposure to radiation emitted from hot particles or other contamination on or near the skin. These assessments are required by Title 10 of the Code of Federal Regulations (10 CFR) 20.1201(c), which states that the assigned shallow dose equivalent is to the part of the body receiving the highest exposure over a contiguous 10 cm2 of skin at a tissue depth of 0.007 centimeters (7 mg/cm2).

With the release of VARSKIN+ three new physics modules are introduced:

RIGEL FLORA (1) wound dosimetry; (2) neutron dosimetry; and (3) eye dosimetry. Skin and U.S. Nuclear wound dosimetry implement a new alpha dosimetry model for shallow skin Regulatory Commission assessments. VARSKIN+ can be used to perform wound dose assessments if the metabolic modeling and dosimetry methods are consistent with NRC regulations (e.g., use of 10 cm2 averaging area for skin dose assessments and tissue or organ weighting factors as defined in 10 CFR 20.1003).

Course Requirements:

y Attendees must provide their own laptop computer with the current version of VARSKIN+ installed prior to the start of the meeting.

y Before taking the course, all attendees should complete the online course Introduction to VARSKIN.

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ALARA - DAY 2 INSTRUCTOR: ALARA in Diagnostic Imaging ALARA in diagnostic imaging shares lessons learned to reduce doses to personnel and the public. The presentation will begin by talking about recent trends in patient shielding based on regulatory guidance regarding shielding during diagnostic exams. Additionally, the focus will be on the importance of radiation protection and how to set up staff and program managers to succeed in this realm. Demonstration of these principles will be done with the help of RAMP modeling software, PIMAL (and MCNP'), that will illustrate the dose consequences in both well shielded and poorly shielded examples.

CHARLOTTE ROSE Two case studies will be shown, simulating both a typical X-ray exam and one Renaissance Code in a nuclear medicine suite, showing consequences to staff and caregivers Development in situations both following ALARA and without.

(RCD), LLC 12

RASCAL - DAY 2 AND DAY 3 INSTRUCTOR: RASCAL Training for Beginner Users This RASCAL training course is a hands-on computer class for new RASCAL users. No experience with RASCAL is required, but a general familiarity of radiological assessments will be helpful. Instructors will walk users through a step-by-step example of doing a dose assessment using RASCAL 4.3.4. Discussion topics include:

y RASCAL capabilities & tools y Site locations JEFF KOWALCZIK y Source term models U.S. Nuclear Regulatory y Atmospheric models Commission y Reading results INSTRUCTOR:

Users are required to have RASCAL 4.3.4. installed on their computer prior to attending.

RASCAL Training for Intermediate Users This RASCAL training course is a hands-on computer class for intermediate and experienced RASCAL users. Experience with RASCAL is required. Instructors will walk users through a series of dose assessments, focusing on comparing models in a real-world scenario. Discussion topics GEORGE ATHEY include:

Athey Consulting, Inc.

y Building RASCAL runs for severe accident progressions y Core damage estimation using containment radiation monitors y Comparing small and large break coolant accidents Users are required to have RASCAL 4.3.4. installed on their computer prior to attending .

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PiMAL/MCNP - DAY 3 INSTRUCTOR: PiMAL is a collection of computational human phantoms useable with MCNP for the assessment of radiation dose to various organs in standard and nonstandard positions through the user inputted articulation of arms and legs.

A phantom model, included in the GUI, enables visualization of the arms and legs as they are positioned using slider bars. An MCNP input file is then generated and the radiation transport simulations using MCNP are performed through the GUI. Once simulation is complete, the computed organ dose values are extracted from the MCNP output file, displayed, and exported as an ASCII file.

CHARLOTTE ROSE Training objectives Renaissance Code Development This training will guide the student through the use of PiMAL from installation (RCD), LLC to simulation with emphasis on use cases, methods, materials, sources, and tallies. A detailed tutorial on a simple modeling technique will conclude the training session.

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NOTES 15

THANK YOU FOR ATTENDING STAY TUNED FOR THE FALL USERS GROUP HYBRID MEETING OCTOBER 2023 NEAR NRC HEADQUARTERS For additional information Email:

ramp@nrc.gov l ramp.admin@pnnl.gov RAMP Website:

ramp.nrc-gateway.gov