ML20134N428
| ML20134N428 | |
| Person / Time | |
|---|---|
| Issue date: | 09/08/1995 |
| From: | Steven Baggett, John Lubinski NRC |
| To: | |
| Shared Package | |
| ML20134N430 | List: |
| References | |
| SSD, NUDOCS 9702240143 | |
| Download: ML20134N428 (4) | |
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REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE i
l NO.: NR-420-D-805-S DATE: September 8, 1995 PAGE 1 OF 3 l l
DEVICE TYPE: Vertical Teletherapy Unit ,
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MODEL: Keleket-Barnes Flexaray l
MANUFACTURER / DISTRIBUTOR: LFE Industrial Systems Corporation 55 Green Street Clinton, MA 01510 ,
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l JSOTOPE: MAXIMUM ACTIVITY:
l l Cobalt-60 4000 curies (138 TBq) l' 4
LEAK TEST FREOUENCY: 6 Months PRINCIPAL USE: (C) Medical Teletherapy l
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CUSTOM DEVICE: YES X NO l
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9702240143 950908 PDR RC- PDR SSD
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REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE I
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NO.: NR-420-D-805-S DATE: September 8, 1995 PAGE 2 OF 3 l l
DEVICE TYPE: Vertical Teletherapy Unit l
DESCRIPTION:
The Keleket-Barnes Flexaray is a motor-driven floorstand teletherapy unit designed for stationary beam therapy. The unit can be ordered with a-yoke as an optional feature. The treatment distance can be varied, beginning at 30 cm (11.8"). The height of the source above the floor can be adjusted from 2'4" (71.1 cm) minimum to 6' (183 cm) maximum. The unit is 8' (244 cm) high and the distance between the source and the back of the unit is l approximately 5' (152.4 cm).
The unit normally uses a standard international teletherapy capsule and has been licensed for up to 4000 curies.
The unit may be supplied with a choice of two different heads.
The Mark II, Model D head, is rated for 1500 rhm source and the Mark II, Model D-1, is rated for 3500 rhm. The head consists of a spherical cast steel shell filled with lead. A tungsten alloy disc inside the head provides additional shielding in the "off" position for the Model D-1 head. The source is seated in a cavity in the solid tungsten alloy source wheel and held in place by a lock ring. The system is designed so that the source wheel l will be automatically returned to the "off" position by a return '
spring in the event of power failure.
The head will tilt forward 225* from the downward direction and back 45*. The yoke (optional) may rotate through an arc of 360*.
Beam orientation in the two planes can be limited by microswitches.
A pointer on a hand wheel and lights on the control panel and i inside the teletherapy room indicate the "on" and "off" conditions. The source wheel retracts to the "off" position by a return spring if the power fails or the door is opened, the unit must be reset to continue treatment. In an emergency, the indicating hand wheel at the rear of the head can be turned to return the source to the "off" position. The source cannot be
! moved to the "on" position by the hand wheel, however, because of l a one way clutch.
t There is no uranium in this unit.
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l REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE i NO.: NR-420-D-805-S DATE: September 8, 1995 PAGE 3 OF 3 DEVICE TYPE: Vertical Teletherapy Unit LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE:
The device may be used by persons specifically licensed by the NRC or an Agreement State. ;
e Handling, storage, use, transfer, and disposal: To be determined by the licensing authority.
The device shall cc leak tested at intervals not to exceed 6 months using techniques capable of detecting 0.005 microcurie (185 Bq) of removable contamination, e This registration sheet and the information contained within the references shall not be changed without the written consent of the NRC.
1 SAFETY ANALYSIS
SUMMARY
LFE' originally registered this device with the intent to commercially distribute it. NRC concluded that the device was acceptable for licensing purposes. However, the devices were never distributed from LFE and, therefore, LFE has no information on the number of devices distributed. LFE does not intend to distribute the device in the future.
REFERENCES:
The following supporting documents for the Model Keleket-Barnes Flexaray are hereby incorporated by reference and are made a part of this registry document.
- LFE's letters dated July 7, 1995, September 16, 1991, and August 6, 1991, with enclosures thereto.
ISSUING AGENCY: f' U.S. Nuclear Regulatory Commission !
Date: September 8, 1995 Reviewer: - '
f6hnW. Lubinski f Date: Seotember 8, 1995 Concurrence: - -
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EYteven Uf Baggett l
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,i INFORMATION RECORD !
TYPE: i Note inactive toSeptember LFE files for1995. registration certificates made l ORGANIZATION: k LFE DATE:
09/21/95 )
SUMMARY
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Existing AEC/NRC files (registration files, license filec, NUDOCS, and archives) concerning these products were examined for information that supports registration of the products. Copies of all !
applicable file.
information lo.cated is included in this l
The manufacuurer, LFE, was also asked for additional information concerning the products. '-
the products have not been distributed cwer, many of '
years, or the product lines were sold in the late 1960's, and LFE provided all additional information they have concerning the products'. '
NRC has transferred the registration certificates to inactive, as requested by LFE, and continues to concludebased purposes the products on AEC'sare ordacceptable for licensing 3inal evaluation of the products and the operational history of the products.
PERSONS DOCUMENTING THE '
SIGNATURE:
INFORMATION: / DATE:
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John W. Lubinski j 09/21/95 Steven L. Baggett ,
09/21/95 1
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William R. Prendergast LFE Industrial Systems Corporation 55 Green Street Clinton, MA 01510
Dear Mr. Prendergast:
This letter is in reference to your letter dated August 6,1991, which requested that we transfer the registration certificates listed in column 1 of Enclosure 1.to inactive status. The certificates have been transferred to ,
inactive status as you have requested. Please note that transfer of the registration certificates to inactive status means the sources or devices included on the certificates may no longer be commercially distributed.
The registration numbers for the certificates have been changed. Enclosure 1 specifies the old registration number, the new registration number, and the model numbers. Please note that some old certificates have been combined into one new inactive certificate. In addition, two registration certificates have been deleted from the system since they were duplicates of other certificates.
Please review the registration certificates (copies enclosed in their entirety and notify us immediately if there are any errors or) omissions.
If you have any questions, please call me at (301) 415-7868 or Mr. Steven Baggett at (301) 415-7273.
Sincerely,
/3/
John W. Lubinski, Mechanical Engineer Sealed Source Safety Section Source Containment and Devices Branch Division of Industrial and Medical Nuclear Safety Office of Nuclear Material Safety And Safeguards
Enclosures:
As stated cc: S. Kimberley, LFDCB Distribution:
SCDB r/f SSD-91-86 NE01 SSD Files listed in column 1 of enclosure 1 of this letter DOCUMENT NAME: C:\ FILES \SSDS\LFE\LFE. CMP Ts ,eceive a copy of this document, Indcate in the box: "C" = Copy without attachment / enc 80sure *E" = Copy with attachment / enclosure 'N' = No copy 0FFICE SCDB ,. , i s l.t l l l l NAME JLubinski/jl DATE 09/ A /95 0FFICIAL RECORD COPY
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ENCLOSURE 1 Old Reg. Number New Reg. Number Model Number (s)
NR-420-D-101-U NR-420-D-801-S Keleket-Barnes Rotary NR-420-D-102-U NR-420-D-802-S Keleket-Barnes Shperay l NR-420-D-103-U NR-420-D-803-S Keleket-Barnes Ceiling l l Mounted Unit '
( NR-420-S-104-S NR-420-S-804-S S-10 l
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NR-420-D-106-U NR-420-D-805-S Keleket-Barnes Flexaray i
NR-420-S-107-U NR-420-S-806-S RXA, RXB, RXC, RXL, l RXM, RXN NR-420-D-108-U NR-420-D-807-B SCL-1D NR-420-D-109-B NR-420-D-808-B BGL-7C NR-420-D-110-G certificates were BGL-7 combined BGL-IC NR-420-D-111-B NR-420-D-112-B NR-420-0-809-B BGL-1 i NR-420-D-113-B NR-420-D-810-B S0-7D, S0-7E certificates were S0-7A, S0-7B, S0-7C NR-420-D-114-8 combined NR-420-D-115-B NR-420-D-811-B S0-1A, S0-1B, S0-1C l NR-420-D-Il6-B NR-420-D-812-B SN-7D, SN-7E certificates were SN-7A, SN-78, SN-7C NR-420-D-117-8 combined NR-420-D-118-B NR-420-D-813-B SN-1A, SN-1B, SN-1C, l SN-lD, SN-1E, SN-1F NR-420-D-Il9-B NR-420-D-814-B SC-70, SC-?E I
NR-420-D-120-B NR-420-D-815-B SC-7A, SC-7B, SC-7C NR-420-D-121-B NR-420-D-816-B SC-1A, SC-18, SC-lC, SC,lD, SC-lE, SC-1F NR-420-D-122-B NR-420-D-817-B SN-P7B NR-420-D-124-B NR-420-D-818-8 SCL-1A and SCL-1B l
NR-420-D-125-G NR-420-D-819-B SN-P7A4 l
NR-420-D-126-U NR-420-D-820-B HSB-76 and HSB-77 l NR-420-D-127-G NR-420-D-821-G HSB-76A and HSB-77A I
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'l Old Reg. Number New Reg. Number Model Number (s) !
NR-420-D-128-G NR-420-D-822-G BGL-7A l
NR-420-D-132-G- NR-420-D-823-G SNF-18 l NR-420-D-133-G NR-420-D-824-G SSL-3 ]
NR-420-S-137-U NR-420-S-826-S R-30, R-31 j NR-420-S-138-U NR-420-S-827-S CD-1 J
SC-11 !
NR-420-D-139-U NR-420-D-828-S NR-420-D-140-U NR-420-D-829-8 DH-75 L
l NR-420-S-141-U NR-420-S-830-S S-75 i NR-420-D-142-0 NR-420-D-831-S AX-4 '
l NR-420-D-143-U NR-420-D-832-S BG-107 i i
! NR-420-0-144-U NR-420-D-833-S BG-105 lt I
- NR-420-D-145-U NR-420-D-834-S BG-7
L NR-420-D-146-U NR-420-D-835-S BG-5 i NR-420-D-147-U NR-420-D-836-S BG-2/5 NR-420-D-151-B deleted from system -
same as old registration NR-420-D-117-B NR-420-D-152-U NR-420-D-840-B SC-9C NR-420-S-154-U NR-420-S-842-S S-9 f
i NR-420-S-155-U NR-420-S-843-S R-58, R-59 NR-420-S-166-U NR-420-S-844-S CS-15 i NR-420-S-157-U NR-420-S-845-S CD-15 NR-420-S-158-U deleted from system -
same as old registration NR-420-S-156-U NR-420-D-159-U NR-420-D-846-S SC-11A NR-420-D-160-U NR-420-D-847-S Clathrate Gas Detector NR-420-S-163-U NR-420-S-849-S CD-11 f NR-470-D-164-R NR-470-D R50-B SN-P1B i
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