ML20115G083

Intervenor Exhibit I-GANE-7,consisting of Re Facility High Radiation Areas

ML20115G083
Person / Time
Site:	Neely Research Reactor
Issue date:	05/20/1996
From:	Copcutt B Neely Research Reactor, ATLANTA, GA
To:
References
REN-I-GANE-007, REN-I-GANE-7, NUDOCS 9607180240
Download: ML20115G083 (5)

Text

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I-SNE-7 Georgia Institute of Technolo i*

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,s NEELY NUCLEAR RESEARCH CENTER USNRC 3

h 900 ATLANTIC DAIVE ATLANTA, GEORGIA 3o332-o425

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'OrYIN OF SECMTMY DOCXE flWi & ' 9 '/ W'.

MEMORANDUM f

To: R.A.Karam From: B. Copcutt d

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Subjects facility high radiation areas T

I have investigated radiation levels in the containment building and come to the conclusion that several locations meet the criteria for being posted as "High Radiation Areas" (H.R.A.).

The definition of a H.R.A.

in 10 CFR 20 is as follows:

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"any area, accessible to personnel, in which there exists i

radiation (... ) at such levels that a major portion of the body could receive in any one hour a dose in excess of 100 millirem.

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1 A survey performed on 7/24/90 (copy attached) shows levels in excess of 100 mram/hr in 4 locations which are not currently posted as "High Rad. Areas".

The survey was performed with the reactor at 4 MW power level.

The areas identified are...

1. reactor top

2. biomedical facility on first floor

3. outside of process equipment room door on ground floor

4. niche under biomedical room beam port on ground floor l

10 CFR 20 requires that the access point to each high rad. area be controlled by either...

1. maintaining the area locked, or 2.

using a device to reduce radiation levels below 100 mram/hr if an individual enters, or i

3. using a visible or audible alarm such that the individual i

entering the area and a supervisor are alerted to the entrance, or 4.

direct surveillance to prevent unauthorized entry (only for high rad. areas established for 30 days-or less).

I

.. - NUCLEAR REGULATORY COMMISSION 1

7 Docket No. [o 466.MN EXHIBIT NO.

9607180240 960520 In the rnatter of [Mu d-4sM PDR ADOCK 05000160 o staff O Applicant ("Tfn'tervenor O Other G

PDR

[2 fdentified O eirceived D Rejected Reporter 6/ C ul _

Date_f/r,0/fl __ Witness A c-Te6en : 542507 GTRIOCAATL Fax: 404-894-3120 (Venh 404-8944451)

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4 Memorandum to 4

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R. A. Karam i

July 27, 1990 j

Page 2 I

1 Also, all H.R.A.s must be posted as " Caution, High Radiation I

Area", and dosimetry must be worn by all individuals who enter.

In the case of the reactor top, direct surveillance by an operator is always in place whenever the reactor is at power.

However, the area must still be posted as " Caution, High Rad. Area" l

and " dosimetry required for entry".

The biomedical facility must be similarly posted and have access controlled by either of methods 1 (locking) or 3 (alarm) 4 4

above.

I would suggest that the simplest choice is to install a l

locking gate on the facility door.

l The area below the biomedical facility on the ground floor is i

currently considered a contaminated area due to beamport cooling 4

water leahage from above.

I believe that constructing a simple locked enclosure around this area would solve both the problems of contamination control and access to the high radiation area.

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Posting the area is also required.

The area near the process equipment room door is very localized and it may be possible to reduce radiation levels by installation j

of further shielding in the door or around nearby equipment.

j With your permission, I would like to initiate the actions outlined above in order to more fully control the facility high

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radiation areas.

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