ML082950080

E-mail, Humbolt and Diablo Canyon Rais for Use of Weighting Factors for Ede

ML082950080
Person / Time
Site:	Diablo Canyon, Humboldt Bay
Issue date:	10/20/2008
From:	Wang A Plant Licensing Branch IV
To:	Grozan T Pacific Gas & Electric Co
Wang, A B, NRR/DORL/LPLIV, 415-1445
References
TAC MD8914, TAC MD8915
Download: ML082950080 (1)

Text

From: Alan Wang Sent: Monday, October 20, 2008 3:53 PM To: Tom Grozan Cc: Susan Lent; Glenna Lappert; Donald Hickman

Subject:

Humbolt and Diablo Canyon RAIS for Use of Weighting Factors for EDE (MD8914 and MD8915 Tom, here are Roger Pedersen's questions regarding the weighting factors for Effective Dose Equivalent. Roger has proposed these for both Humbolt and Diablo so I assume your response will include both sites. If you need a call to discuss let me know when. Alan Request for Additional Information Application to Use Weighting Factor for Effective Dose Equivalent Diablo Canyon Units 1&2 Humboldt Bay Unit 3

1. Verify that the phrase measure the expected highest dose location on that body area or compartment, as it is used in the last paragraph on page 2 of the submittal, means that the dosimeter for each compartment will be placed at the highest exposed part of the respective whole body compartment, consistent with the dosimeter placement criteria found in NRC Inspection Procedure 71121.01.

2. The method for assigning extremity dose described in the last sentence of the second paragraph on page 3 of the submittal is not acceptable. Since the determination of extremity dose is extraneous to the request for determining external effective dose for the whole body, this sentence should be deleted.

3. The second paragraph under the Conclusion heading on page 3, needs clarification. The EDE method being requested is based on HPS N 13.41 but is modified by the licensee commitments to measure the dose to each compartment as the Deep Dose Equivalent at the highest exposed part of that compartment. In addition the rest of the paragraph should be deleted. The approved methods for medical personnel discussed in RIS 2002-06 are not applicable to nuclear power plant exposures.

E-mail Properties Mail Envelope Properties (419623E8C7444444BF132DA3AE69EDA210665BA46B)

Subject:

Humbolt and Diablo Canyon RAIS for Use of Weighting Factors for EDE (MD8914 and MD8915 Sent Date: 10/20/2008 3:53:06 PM Received Date: 10/20/2008 3:53:06 PM From: Alan Wang Created By: Alan.Wang@nrc.gov Recipients:

TCG5@PGE.com (Tom Grozan)

Tracking Status: None Susan.Lent@nrc.gov (Susan Lent)

Tracking Status: None Glenna.Lappert@nrc.gov (Glenna Lappert)

Tracking Status: None Donald.Hickman@nrc.gov (Donald Hickman)

Tracking Status: None Post Office:

HQCLSTR02.nrc.gov Files Size Date & Time MESSAGE 13654 10/20/2008 Options Expiration Date:

Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received: