ML19192A104
| ML19192A104 | |
| Person / Time | |
|---|---|
| Issue date: | 07/10/2019 |
| From: | Tomlinson J Holtec |
| To: | Yen-Ju Chen Spent Fuel Licensing Branch |
| Chen Y | |
| References | |
| Download: ML19192A104 (4) | |
Text
From:
Joyce Tomlinson To:
Chen, Yen-Ju
Subject:
[External_Sender] RE: RE: Query: FW Amd 5 Review Date:
Wednesday, July 10, 2019 1:33:08 PM Attachments:
image001.jpg
- Yen,
- 1. Yes, the values for lead and holtite are the minimum values (Lead: 2.625 inches, Holtite: 4 inches)
- 2. The minimum thickness of the inner steel shell of the neutron cylinder is 1 inch.
Warm regards, Joyce
Joyce Tomlinson Adjunct Licensing Manager Holtec International
(856) 797-0900 Ext. 3765
Holtec Logo-EmailSignature
From: Chen, Yen-Ju <Yen-Ju.Chen@nrc.gov>
Sent: Wednesday, July 10, 2019 1:21 PM To: Joyce Tomlinson <J.Tomlinson@holtec.com>
Subject:
RE: RE: Query: FW Amd 5 Review
CAUTION: This email came from a source OUTSIDE of Holtec!!
Do not click any links or open any attachments unless you trust the sender and know the contents to be safe.
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Joyce:
This is not exact what we are looking for.
Appendix Q of HI-2094431 (Attachment 11 to letter 5018061) (ML19127A270), Section Q4 states that lead thickness of 2.625 inches is used for the calculation because it was specific to Oyster Creek. Is the 2.625 inch just for Oyster Creek or is it the minimum thickness? Please verify.
It states in Drawing 11283, Rev. 0 (ML18179A103) that the thickness of Holtite-A is 4; however, it also states 4 HOLTITE THK. VARIABLE. We also noticed on the drawing, the neutron shield cylinder inner shell (steel) is also listed as 1 THK. VARIABLE.
Please provide the following information for HI-TRAC VW Version V2:
- 1. Confirm the values provided in your previous email (Lead: 2.625 inches, Holtite: 4 inches) are minimum for both PWR and BWR.
- 2. Provide the minimum thickness of the inner steel shell of the neutron shield cylinder.
- Thanks, Yen
From: Joyce Tomlinson <J.Tomlinson@holtec.com>
Sent: Wednesday, July 10, 2019 7:58 AM To: Chen, Yen-Ju <Yen-Ju.Chen@nrc.gov>
Subject:
[External_Sender] RE: Query: FW Amd 5 Review
- Yen,
The thicknesses used for the shielding analysis for HI-TRAC VW Version V2 are as follows:
Lead: 2.625 inches Holtite: 4 inches
These values were used in Appendix Q of HI-2094431 (Attachment 11 to letter 5018061). The thickness are variable based on site needs as indicated on drawing 11283R0, HI-TRAC VW Version V2.
Warm regards, Joyce
Joyce Tomlinson Adjunct Licensing Manager Holtec International
(856) 797-0900 Ext. 3765
Holtec Logo-EmailSignature
From: Chen, Yen-Ju <Yen-Ju.Chen@nrc.gov>
Sent: Tuesday, July 09, 2019 3:06 PM
To: Joyce Tomlinson <J.Tomlinson@holtec.com>
Subject:
Query: FW Amd 5 Review
CAUTION: This email came from a source OUTSIDE of Holtec!!
Do not click any links or open any attachments unless you trust the sender and know the contents to be safe.
Clicking links or opening attachments could lead to infecting your computer or Holtecs servers with malicious viruses.
Joyce:
As mentioned on phone, we will have ORNL to develop templates for criticality and shielding calculations for FW Amendment 5.
At this stage, they need the following information for the development:
Minimum lead and Holtite thicknesses for the HI-TRAC VW Version V2
This information is need for shielding calculation. Let me know if you prefer to discuss this in a teleconference.
- Thanks, Yen
Yen-Ju Chen Division of Spent Fuel Management Office of Nuclear Material Safety and Safeguards Nuclear Regulatory Commission 301-415-1018
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The information contained herein is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material from Holtec International. If you are not the intended recipient, you must not keep, use, disclose, copy or distribute this email without the author's prior permission. Further, review,
retransmission, dissemination, or other use of this information in whole or part for any other purpose by persons outside the recipient's organization is strictly prohibited unless explicit authorization to such effect has been issued by the sender of this message. Holtec International policies expressly prohibit employees from making defamatory or offensive statements and infringing any copyright or any other legal right by Email communication. Holtec International will not accept any liability in respect of such communications. Holtec International has taken precautions to minimize the risk of transmitting software viruses, but we advise you to carry out your own virus checks on any attachment to this message. Holtec International cannot accept liability for any loss or damage caused by software viruses. If you are the intended recipient and you do not wish to receive similar electronic messages from us in the future then please respond to the sender to this effect.