ML100271819
| ML100271819 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 04/24/1973 |
| From: | Dietz G Isomedix |
| To: | |
| Shared Package | |
| ML093430851 | List: |
| References | |
| NUDOCS 8202090342 | |
| Download: ML100271819 (8) | |
Text
ISOMUDIX Irradiation of Transmitters per Test Schedule No. 5, 12/10/72 As Modified May, 1973 provided by The Foxboro Company Test Date:
Foxboro Order No.:
Date:
Prepared by:
May 14, - May 18, 1973 E-11812 April 24, 1973 1W02090342 820204 ADOCK 05000286 PDR
-4 0 0 isomedix Inc. A 25 Eastmans Rd., Parsippany, New Jersey Telephone (201) 887.4700 Mailing Address: Post Office Box 177. Pars,poany. New Jersey 07054 Isomedix Limited e 4 Place Ville Marie, Suite 402, Montreal 113, Quebec, Canada Telephone (514) 861,9801 r ", I
- 1. Identification of Units The 8 test transmitters were standard construction as follows:
6 Units -
El3DM-ISAM2 Electronic d/p Transmitters S/N 2595238, 239, 240, 241, 254, 255 Input Range Limits20-205" H20 Test Range: 0-100"H 20 Supply Voltage Limits 24-60 Vdc Test Supply Voltage 30 Vdc Output Load 650A Output Current 4-20 mAdc Serial Numbers 2595241, 254, 255 have standard amplifier N0143XS. The amplifier of S/N 255 was remote mounted.
Serial numbers 2595238, 239, 240 have prototype amplifier N0148TE. The amplifier of S/N240 was remote mounted.
2 Units -
EI3DM-HSA-M2 Electronic d/p Transmitters S/N 2630073, 093 Input Range Limits 20 -205" H20 Test Range: 0 - 100" H 2 0 Supply Voltage Limits 63 - 100 Vdc Test Supply Voltage 75 Vdc Output Load 600.n Output Current 10 - 50 mAdc Units have standard amplifier N0143SY
Page 2
- 2. Irradiation Test Facility
- a. Description - See Attached.
- b. Dosimetry was performed using a Victoreen Model 555 Integrating dose Rate Meter and Probe. The unit was calibrated on 1-15-71 by the Victoreen Instrument Company, using cobalt-60 and cesium-137 sources whose calibrations are traceable to the U.S. National Bureau of Standards. A copy of the calibration certificate is available. Backup dosimetry using Harshaw TLD devices, and also a modified Fricke chemical system, confirmed the Victoreen readings.
- c. Flux distribution in Irradiation Chamber (1)
At 1 x 105 rad/hr., the flux is described as a cylinder 50" from the source centerline, over a vertical height of approximately 45".
Assuming a dose rate range of 1.0 to 1.20, the cylinder becomes an annulus with inner radius of 41" and outer radius of 50", with the 1.2 factor at 41".
(2)
At 1 x 106 rad per hour, the flux is described as a cylinder 15" from the source centerline extending over a vertical height of approximately 53".
Assuming a dose rate range of 1.0 to 1.3, the cylinder becomes an annulus with inner radius of 9" and outer radius of 15", with the 1.3 factor at 9".
Page 3
- 3. Test Procedure Used
- a. Test performed was per Test Schedule No. 5, dated 12/10/72, previously provided by Foxboro, and revised May, 1973.
- b. Irradiator operation was basically per last paragraph of Item 2a.
Transmitters were positioned at pre selected distances from the source irradiate position.
The source, when raised, is then locked into its irradiate position.
- 4. Test Equipment Used
- a. Input Equipment (1)
Power Supplies (a) Hewlett Packard Model 60155C - 30Vdc (4-20 MA units) S/N's 01418, 01594 (b) Electronic Measurements M212A - 75Vdc (10-50 mA units) S/N's 6096, 9433 (c) One Princeton Applied Research* Model TC-100.2 S/N 157 (24Vdc for switching Circuits)
(2)
Input Signal (a) Mansfield & Green Air Deadweight Tester*
Model 650 WC-SS S/N 66614 Accuracy:
0.025% of Input Pressure (b) Step Response Equipment
- 1. Capacity Tank -
1732 cu. in.
- 2. Air Loading Regulator - Moore Products
Page 4
- 3.
Solenoid Valve - ASCO Model 8320A25 3-Way Valve
- 4. Pressure Transducer - Stathem Gold Cell with Interchangeable Diaphragms 5 lbf//in 2 diaphragm
- 5. Pressure Gauge - Wallace & Tiernan*
Model FA-145 S/N PP11538 Pressure Range 0-120" H2 0 Accuracy:
0.1% of Full Scale
- b. Output Equipment (1)
Resisters (a) Load Resistors* -
4 00.L + 2fl (4-2OmA Units) 500-n- + 2,. (10-50mA Units)
(b) Readout Resistors* - l00j -+ 0.02n(10-50mA Units)
- 250A + 0.021 (4-20mA Units)
(2)
Digital Voltmeter* - Data Technology Corp.
Model 350 Accuracy: + 1 digit on Vdc ranges S/N 18611 (3)
Output Monitor - Hewlett Packard 4-Channel Recorder Model 7414A S/N 1145A (4)
Output Recorder Switching - Potter Brumfiell 8 Pole Relay
- 24Vdc (5)
Output Voltage Readout Switching -
15 Pole Multiswitch - Foxboro Company - Pt. No. V101BW Tool Number A-171 from Dept. 383 Asterisk denotes equipment checked by the Foxboro Company Measurement Standards Laboratory and referenced to the National Bureau of qt n~Aqt
Page 5
- 5. Attestation of Data An Isomedix employee (the hot cell operator) initialed test data on each run, signifying that data was taken as specified.
SERVICE IRRADIATOR DESCRIPTION irradiations are normally conducted in the hot cell 2-3 complex (drawing 80004.).' Product to be processed is placed on a series of turntables arranged in a circular configuration.
The source is placed in the center of this arrangement for a preset time.
The source elements are placed in 1/2" diameter 60".long stainless tubes, held in a squirrel-cage type holder.
Two or three sources are placed in each tube.
In the storage position the source holder is lowered into the water filled pool-to-cell transfer chute to a depth of at least 10 feet, where the surface reading is zero.
The source is connected by a stainless steel cable to an electrically driven windup drum mounted on a jib crane in the cell.
To expose the source, the operator, from the face of the cell, remotely operates the hoist until the source has cleared the storage tube.
Using manipulators, he swings the crane into the irradiate position.
An opposite sequence is used to lower the source.
In the event of an electrical malfunction, the source can be lowered manually by turning a handle on a flywheel mounted to the drum with one of the two nearest manipulators.
In any malfunctio *n, personnel safety is main tained as long as the cell remains closed.
Item 2a
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MAIN FLOOR PLAN HOT CELL. COMPLE*).
Item 2a 5CALE "" I'-
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