ML19290D012

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Annual Progress Rept, for Sept 1978-Aug 1979
ML19290D012
Person / Time
Site: 05000083
Issue date: 02/07/1980
From: Diaz N
FLORIDA, UNIV. OF, GAINESVILLE, FL
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NUDOCS 8002150361
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ANNUAL PROGRESS REPORT OF THE UNIVERSITY OF FLORIDA TRAINING REACTOR September 1,1978 -August 31,1979

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  • N@R GMEll ENGINEERING & INDUSTRIAL EXPERIMENT STATION 4

Department of Nuclear Engineering Sciences College of Engineering University of Florida Gainesville i

Contract # EY-76-G-05 h0114 Report # ORO bolh-9 A!ItJUAL PROGRESS REPORT OF Ti!E Uti1VERSITY OF FLORIDA TRAI!1It1G REAC'IDR September 1, 1978 - August 31, 1979 Submitted to the Department of Energy 11uclear Regulatory Commission and University of Florida s

By tiils J. Diaz Professor and Director of 11uclear Facilities Department of fluclear Engineering Sciences

College of Engineering University of Florida Gainesville, Florida Decemlm r , 1979

TABLE OF CONTENTS Page N_o.

I. INTRODUCTION 1 II. UNIVERSITY OF FLORIDA PERSO! RIEL ASSOCIATED WITII 2

'IIIE REAC'IOR III. FACILITY OPERATION 4 IV. MODIFICATIONS 'IO Tile OPERATING CifARACTERISTICS OR CAPABILITIES OF TIIE UFTR 12 V. SIGNIFICANT MAINTENANCE AND TESTS OF REACTOR SYSTEMS 13 VI. CIIANGES 'IO TECIINICAL SPECIFICATIONS AND STANDARD OPERATING PROCEDURES 17 VII. RADIOACTIVE RELEASES AND ENVIRONMENTAL SURVEILLANCE 18 VIII. EDUCATION, RESEARCl! AND TRAINING UTILIZATION 20 IX. 'IIIES ES , PUBLICATIONS, REPORTS AND ORAL PRESENTATIONS OF WORK. RELATED TO TIIE USE AND OPERATION OF TiiE UFTR 24

1 l V 1

I. INTRODUCTION The University cf Florida Training Reactor experienced a significant de-crease in its overall utilization during this reporting period (September 1, 1978 through August 31, 1979). The utilization for teaching decreased due to a reduction in the number of Reactor Operations courses taught. The re-search use was also reduced due to the requirement for much larger neutron fluxes than available at the UFTR by experimenters.

The total effective hours was also affected by not having a training program for nuclear power plant operators. A program is presently being scheduled for the summer of 1980; this will enhance the facility utiliza-tion and finances significantly.

The UFTR has increased the physical security at the facility by a series of modifications and additions to the existing systems. However, we have been able to maintain our public information programs by better regulating the access to the Reactor Cell.

The re-licensing process is being continued, with most of the new version of a SAR to be finished by April, 1980.

It should be emphasized that present and proposed research projects do in-dicate a pressing need for upgrading the UFTR power to 500 kwth. This should be actively pursued during 1980 and final decisions on the subject made.

2 UNIVERSITY OF FLORIDA PERSONNEL ASSOCIATED WITH THE REAC'IOR A. Personnel Employed by the UFTR N.J. Diaz - Professor and Director of Nuclear Facilities, Reactor Supervisor tC.B. Fountain - Senior Reactor Operator and Assistant Reactor Supervisor H. Gogun - Senior Reactor Operator (full time)

G. Fogle - Reactor Operator (full time)

J. Cantlin - Reactor Operator (1/3 time)

B. Other Licensed Operators G.R. Dalton - Professor and Senio. Reactor Operator, Nuclear Engineering Sciences Department B.D. Carter - Reactor Operator C. Radiation Control Office T.J. Bauer - Radiation Control Officer H.G. Norton - Radiation Control Technician G.R. Renshaw - Radiation Control Technician D.L. Monroe - Radiation Control Technician T.R. LaVoy - Nuclear Technician (1/2 time)

B.L. Blackwell - Nuclear Technician (1/2 time)

D. UFTR Subcommittee of University Radiation Control Committee G.R. Dalton - Chairman N.J. Diaz - Member M.J. Ohanian - Member T.J. Bauer - Member W.E. Bolch - Member t No longer employed by the UFTR cffective July 31,1979

3 E. Line Responsibility for the UFTR Administrative Control R.Q. Marston, President, University of Florida W.!!. Chen, Dean, College of Engineering E.E. Carroll, ? , Acting Chairman, Department of Nuclear Engineering Sciences N.J. Diaz, Director of Nuclear Facilities and Reactor Supervisor F. Line Responsibility for the Radiation Control Office R.Q. Marston, President, University of Florida W.E. Elmore, Vice-President, Administrative Af fairs B.G. Dunavant, Director, Occupational llealth and Safety T.J. Bauer, Radiation Control Officer e

4

4 III. FACILITY OPERATION The UFTR overall utilization suffered a significant decrease during this reporting period. A combination of factors contributed to the smaller use of the facilities for both teaching, research and training. This seems to be a cyclic problem, which has been observed previously at university facilities and at the UFTR in particular.

A reduction in the number of laboratory periods and reactor operations courses lowered the teaching use. Lack of high neutron fluxes hampered re-search projects; some consistent users had to use the Georgia Tech Reactor be-cause of much larger neutron fluxes. Also, the UFTE lacked the manpower to actively search for and support other research projects. The operations of 1979 did not include a utility operators training program.

It is felt that these decreases are temporary and that the 1979-1980 will see the UFTR returning to its high and profitable utilization pattern.

Changes in regulations and standards affecting the research, testing and training reactors continue to occur. Most significant have been the regu~ ttions and guidelines for increasing physical security, safeguards and emergency pre-paredness.

Shown in Table I is a summary of the reactor utilization for this report period. The list categorizes the twenty-two different research projects, teach-ing and training activities.

The total reactor on-time was about 300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br />.

Shble II summarizes the different categories of reactor utilization, irrad-iation time. teaching and training, checkout and calibrations, and experimental set-up services. The total recorded inciltiy utilization time was about 770 hours0.00891 days <br />0.214 hours <br />0.00127 weeks <br />2.92985e-4 months <br />.

Detailed in Table III are the monthly and total energy generation. The UFTR generated 9 Mw-brs during this period. Table IV shows the reactor full power running by month and total.

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5 Described in Table V are the reasons and dates of unscheduled shut-downs and reportable incidents. No reportable incidents occurred during this reporting period.

An inspection of the UFTR core and fuel shoved no observable degrad-ation. Radiological surveys confirm that the fuel integrity has been main-tained. Detailed visual inspections indicate the asse=blies have not suffered deformations that would affect coolant flow.

]

6 TABLE I

SUMMARY

OF REACTOR USAGE (September 1978 - August 1979)

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NOTE: The projects marked with a i indicate those experiments con-sidered to be " IRRADIATION" experiments. The projects marked with a tt indicate an operating reactor demonstration run.

Project or User Experiment Time

  • t He -Ne Laser Gas Experiment **

Dr. R.T. Schneider, Nuclear Engineering Sciences Department 20.14 hrs.

t NAA of Hair Samples Dr. G.S. Roessler, Nuclear Engineering Sciences Department 4.98 hrs.

t NAA of Metal Carbides Dr. W.H. Ellis, Nuclear Engineering Sciences Department 0.30 hrs.

t.!M of Clay Samples Dr. G.S. Roessler, Nuclear Engineering Sciences Department 6.13 hrs.

t NAA of Mercury Sample Dr. W.H. Ellis, Nuclear Engineering Sciences Department 2.0 hrs.

t NAA of Biological Samples Dr. G.S. Roessler, Nuclear Engineering Sciences Department 1.0 hrs.

t NAA of Steel Dr. W.H. Ellis, Nuclear Engineering Sciences Department 3.1 hrs, t NAA of Human Hair Dr. G.S. Roessler, Nuclear Engineering Sciences Department 8.4 hrs.

t !UUL of Biological Samples Dr. G.S. Roessler, Nuclear Engineering Sciences Department 7.8 hrs.

t NAA of Shark Tissue Christelle Harrod, Department of Chemistry, Florida State University 5.5 hrs.

t NAA of Hair Samples Dr. G.S. Roessler, Department of Nuclear Engineering Sciences 6.2 hrs.

t NAA of Sea Bottom Sediment **

G.R. Chopin, Department of Chemistry, Florida State University 8.5 hrs.

t ' Decomposition of UF as**

6 Dr. R.T. Schneider, Nuclear Engineering Sciences Department 3.5 hrs.

  • Experiment Time:

Ecactor Key-On time for described experiments.

include time for check-outs, testing, set-up, etc. Does no_t

    • Funded by Federal Grant or Contract.

T Project or User Experiment Time

  • l i Nuclear Engineering Laboratory I, ENU 4505 L Dr. W.H. Ellis, Nuclear Engineering Sciences Department 38.7 hrs.

t Nuclear Engineering Laboratory II, ENU 6516L Dr. E.E. Carroll, Nuclear Engineering Sciences Department 6.6 hrs.

Principles of Nuclear Reactor Operations, ENU 5176 Dr. N.J. Diaz and Dr. E.T. Dugan, Nuclear Engineering Sciences Department 112.97 hrs.

it Nuclear Regulatory Commission Reactor Operator Examination Mr. J. Buzy (NRC) 1.9 hrs.

UFTR Reactor Operator Training UFTR Licensed Staff 45.5 hrs.

UFTR Instrument Alignments and Calibrations UFTR Staff 24.6 hrs.

, TOTAL TIME................ 307.82 hrs, b

l i

  • Experiment Time: Reactor Key-On time for described experiments. Does not include time for check-outs, te sting, set-up, etc.
    • Funded by Federal Grant or Contract i

8 TABLE II-COMMERCIAL, IRRADIATION, AND MISCELLANEOUS REAC7OR UTILIZATION

SUMMARY

Kei On *1btal Time (hrs) Utilizatio'. (hrs)

Commercial Usage 0.0 0.0 University Related Irradiations 77.6 174.8 Student Operator Training 45.5 91.5

    • Reactor Calibration, Reactor Operation Demonstrations and Nuclear Engineering Laboratories (less foil irradiations) and Argon-41 Measurements 182.9 450.4 N.R.C. Reactor Operator Examination 1.9 3.7 ,.

Reactor Tours (47 tours conducted for 446 persons representing high school.,

junior college and universi*.y students and teachers including interested per-sons from the general public. Congress-man Don Fuqua toured the UPTR in December, 1978.) 6.0 49.3 TOTALS 313.9 769.7

  • includes key on time plus set-up, check-out and removal times
  • includes time for routine operability checks, e.g. weekly, daily, etc.

9 TABLE III MONTHLY REACTOR ENERGY GENERATION Monthly Totals KW-HRS of Energy Produced September, 1978 0.0 October, 1978 310.3 November, 1978 1,404.7 Decenber, 1978 844.2 January , 1979 58.1 February, 1979 955.2 March, 1979 1,744.9 April, 1979 273.0 May, 1979 1,649.7 J';ne, 1979 710.0 July, 1979 1,024.2 f.u gus t , 19'9 105.0 TOTAL FOR PERIOD 9,079.3 Number of MW-HRS Produced = 9.079

10 TABLE IV MONTilLY FULL-POWER-IlOURS SUFD!ARY Monthly Totals llours At Full Power September, 1978 0,00 October, 1978 2.58 November, 1978 13.35 December, 1978 8.17 January, 1979 0.46 February, 1979 9.27 March, 1979 16.73 April, 1979 2.31 May, 1979 14.73 June, 1979 7.10 July, 1979 9,10 August, 1979 1.05 TOTAL FOR PERIOD 84.85 Total llours of Operation a': Full Power = 84.85

11 TABLE V UNSCHEDULED SCRAMS Date Occurrence 27 November, 1978 Electrical Transient 6 March, 1979 Operator Error 20 April, 1979 Electrical Transient 26 July, 1979 Electrical Transient 26 July, 1979 Operator Error Note: None of These Scrams were Reportable as an Abnormal Occurrence

12 IV.

MODIFICATIONS TO Tile OPERATING CilARACTERISTICS OR CAPABILITIES OF THE UFTR Effective September 20, 1978, the control circuitry for the reactor control rod drive motors was modified so that the drive motors are deenergized whenever the reac-tor key is in "off". This is expected to extend the lifetime of these motors which have experienced premature failure due to a deterioration of the motor bearing lubri-cant. This deterioration is believed to be caused by the long-term heating caused by continuous energization.

Effective October 9,1978, a Reactor " KEY-ON" elapsed time meter was installed to more accurately monitor reactor usage.

Effective October 13, 1978, the Reactor Cell viewing window was removed and filled in with concrete blocks to improve the physical security of the UPTR.

Effective December 6, 1978, steel fire doors were installed in the UFTR air lock, control room, and rear vehicle door. This was done to increase the protec-tion of the UFTR against fire and has the additional advantage of improving physical security of the UFTR.

Effective June 5, 1979, a door control system for the upper and lower Reactor Building doors was installed. Three stations are provided with door position indi-cation and an electric pushbutton to momentarily unlatch the door when depressed.

The upper door is controlled from the secretary's office on the second floor and the lower door f rom the Reactor Console or the Staff Of fice adjacent to the door. The sys-tem is designed to operate with an intercom system still under evaluation. This sys-tem will allow control of the access of people to the Reactor Building.

Ef fective June 7,1979, an alarm and indicating system (in addition to the pre-sent security alarm) was installed for the personal accese. door located in the West end of the Reactor Cell. This system provides, at the operating console, indication of the position of the door and an audible alarm if the door is opened. The security of the Reactor Cell is therefore improved.

13 V. SIGNIFICANT MAINTENNICE AND TEST OF REACTOR SYSTEMS Date Description 1 September, 1978 Repaired Nuclear Instrument Chart Recorder Drive Shaft 8 September, 1978 Replaced Radiation Fbnitor Battery Packs 12 September, 1978 Replaced all Motion Sensor Battery Packs 14 September, 1973 Repaired Dump Valve Base Plate 20 September, 1978 Modified the Control Rod Drive Circuitry to Deenergize the Drive Motors When the Reactor Key is "0FF" 20 September, 1978 Timed Control Blade Free-Fall Drop Times (S-1) 22 September, 1978 Replaced Core Vent Fan Motor Bearings 22 September, 1978 Conducted Quarterly Evacuation Drill (Q-3) 5 October, 1978 Replaced Safety Blade #2 Shaf t Bearings and Travel Limit Switches 5 October, 1978 Replaced Nuclear Recorder Linear Scale Pen 6 October, 1978 thterial Status Report Completed (S-3) 9 October, 1978 Installed " KEY-ON" Elapsed Time Meter 10 October, 1978 Repaired Open Motor Lead for the Reactor Vent 10 October, 1978 Quarterly Scram Checks Completed (Q-1) 12 October, 1978 Replaced Failed 60-amp Fuse for the Well Pump Motor No Observable Motor or Circuit Defect Found 13 October, 1978 Balanced Vent Fan to reduce vibration 17 October, 1978 Control Blade Reactivity Measurements Completed (S-2) 25 October, 1978 Replaced Ceramic Filter in Shield Tank System 30 October, 1978 Shield Tank Pump, Replaced Failed Motor Bearings 13 Noiember, 1978 Replaced Shield Tank Demineralizer

lh Date Description 20 November, 1978 Area Monitor Calibration Completed (Q-2) 27 November, 1978 Replaced Broken Rupture Disc 6 December, 1978 Steel Fire Doors Installed in UFTR Air Lock, Control Room, and Rear Vehicle Door 7 December, 1c'8 Measured Core Vent and Diluting Fan Flow Rate (A-1) 7 December, 1978 Argon-41 }kasurement Completed (S-4) 8 December, 1978 Repaired Broken Striker Bar of the Air Particulate Detector Recorder 8 December, 1978 Evacuation Drill Involving Local Police, Fire Depart-ment, and Hospital Completed (Q-3) 2 January, 1979 Replaced Regulating Blade Dib ital Position Indicator 5 January, 1979 Replaced Safety #3 Digital Position Indicator 5 January, 1979 Quarterly Scram Checks Completed (Q-1) 22 January, 1979 Cleaned, Lubricated, Replaced Slidewires, and Cali-brated the 2-pen Nuclear Recorder 9 February, 1979 Electrically Shielded Leads on 2-pen Nuclear Recorder 16 February, 1979 Replaced Failed +15v Power Supply in Nuclear Instru-ment Wide Range Drawer 19 February, 1973 Replaced Failed Circuit Board in Regulating Blade Digital Position Indicator 22 February, 19/9 Replaced Safety #3 Blade Drive Motor 27 Februar, , 1979 Repaired Leaking Scott Emergency Air Pack Regulator 1 Fbrch, 1979 Area Monitor Calibration (Q-2) 6 March, 1979 Air Particulate Detector - Repaired Meter, Replaced Motor Bearings, Replaced Vanos and Discharge Line 16 bbrch, 1979 Evacuation Drill Completed (Q-3) 21 bbrch, 1979 Control Blade Reactivity Measurements Completed (S-2) 22 lurch, 1979 Repaired Lock Mounting on Air Lock Door

35 Date Description 26 March, 1979 Completed Control Blade Drop Time Checks (S-1) 27 March, 1979 Cleaned and Leak Tested Sb-Be Source 28 March, 1979 Nuclear Instrument Alignment Completed (A-2) 10 April, 1979 Material Status Report Comp 1..ted (S-3) 20 April, 1979 Quarterly Scram Checks Completed (Q-1) 25 April, 1979 Repaired Striker Pointer on Air Particulate Detector Recorder 22 May, 1979 Secondary Cooling Shif ted To and From City Water Supply for Training 24 tby, 1979 Area Fbnitor Calibration Completed (Q-2) 5 June, 1979 Replaced Both Diluting Fan Belts 5 June, 1979 Reactor Building Door Control System Installed 7 June, 1979 Rear Reactor Cell Door Alarm and Indicating System Installed 13 June, 1979 Core Vent and Diluting Fan Flow Rate Check Completed (A-1) 13 June, 1979 Argon-41 Measurement Completed (S-4) 25 June, 1979 Replaced Resins for Wall-Mounted Demineralizer, Cleaned and Adjusted Flow Meter 25 June, 1979 Replaced Shield Tank Ceramic Filter 28 June, 1979 Installed Double Duplex Electrical Outlet Behind the Reactor Control Console 29 June, 1979 Evacuation Drill Completed (Q-3) 9 July, 1979 Replaced Circuit Board for Digital Display for Safety Blade #3 Red Position Indicator 20 July, 1979 Quarterly Scram Checks Completed (Q-1) 31 July, 1979 Completed Inspection of In-Core Fuel Bundles 6 August, 1979 Replaced Demineralizer Resin and Ceramic Filter in the Primary Purification System. Disassembled and Cleaned the Flow Meter

16 Date Description 13 August, 1979 Removed and Flushed the Primary Heat Exchanger with 10% Acetic Acid (Secondary Side Only) 20 August, 1979 Primary IIcat Exchanger Reinstalled and Tested Satis-factorily 29 August, 1979 Area and Stack Radiation Monitor Calibration Com-pleted (Q-2)

17 VI. CHANGES 70 TECHNICAL SPECIFICATIONS AND STANDAPD OPERATING PROCEDURES A. There were no changes to the Technical Specifications during this reporting period.

B. Revisions to Standard Operating Procedures

1. UPTR - SOP - A.1 - Pre-operational Checks
a. Coversheet Rev. 8, 9/78
b. Page 6 Rev. 8, 9/78
c. Page 11 Rev. 8, 9/78
d. Page 12 Rev. 8, 9/78
c. Page 15 Rev. 8, 9/78
f. Page 19 Rev. 9, 9/78
g. Page 20 Rev. 8, 9/78
h. Page 21 Rev. 8, 9/78
1. Page 22 Rev. 8, 9/78
2. UFTR - SOP - A.5 - Experiments
a. Page 2 Rev. 2, 2/79
3. UFTR - SOP - B.lA - Emergency Procedures - Radiological (working hours)

. a. Coversheet Rev. 2,12/78

b. Page 3 Rev. 2,12/78
4. UFTR - SOP - B.lB - Emergency Procedures - Radiological (non-working hours)
a. Coversheet Rev. 2,12/78

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C. Additions to Standard Operating Procedures

1. UFTR - SOP - E.5 - Instrument Calibration
a. Coversheet Orig., 9/78
b. Page 1 Orig., 9/78
c. Page 2 Orig., 9/78
d. Page 3 Orig., 9/78
c. Page 4 Orig., 9/78 Page 5
f. Orig., 9/78
g. Page 6 Orig., 9/78
h. Page 7 Orig., 9/78
1. Page 8 Orig., 9/78
2. UFTR - SOP - E.3A - Operatica of City Water Cooling System
a. Page 1 Orig., 5/79
b. Page 2 Orig., 5/79
3. UFTR - SOP - F.2 - Procedures
a. Page 1 Orig., 5/79
b. Page 2 Orig., 5/79
c. Page 3 Orig., 5/79

18 VII. RADIOACTIVE RELEASES AND EINIRONMENTAL SURVEILLANCE

'Ihe following is a summary of radioactive effluents released to the ensir-onment from the reactor complex.

A. Caseous (Argon-41)

Month PCi Released PCi/ml PCi/ml**

September 78 0.00 0.00 0.00 October 78 1.38 X 10 1.05 X lo- 5.27 X 10-November 78 6.26 X 10 4.78 X 10~ 2.39 X 10 December 78 3.76 X 10 2.62 X 10" 1.31 X 10~

~

January 79 2.59 X 10 1.80 X 10~ 8.99 X 10 February 79 4.62 X 10 2.96 X 10 1.48 X 10~

March 79

~

7.78 X 10 5.4 X 10~ 2.70 X 10 April 79 1.22 X 10 8.46 X 10' 4.23 X 10~

K2y 79 7.35 X 10 5.12 X 10~ 2.56 X 10 June 79 3.16 X 10 2.2 X 10- 1.10 X 10 3.18 X lo-

~

July 79 4.56 X 10 1.59 X 10

~

August 79 4.68 X 10 3.26 X 10~ 1.63 X 10 Total Argon-41 Released = 40.46 Ci

  • MPC for an Uncontrolled Area = 4.0 X 10~ PCi/ml
    • Reflects the Authorized Dilution Rate of 200 B. Liquid Waste from the UPTR/ Nuclear Sciences Complex

_ There were 645,000 liters

  • discharged to the campus sanitary sewage system during this reporting period.

ECi/m16 pCi/m16 September 78 0.0 March 79 1 X 10' October 79 0.0 April 79 5.5 X 10' November 78 0.0 May 79 9 X 10~

December 78 3 X 10~ June 79 NDA

_ January 79 0.0 July 79 NDA February 79 0.0 August 79 0.0 2

  • The liquid effluent discharged into the holding tanks comes from twenty laboratories within the Nuclear Sciences Center as well as from the UPTR complex.

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    • No Detectable Activity (NDA) Minimum Detectable Activity = 2.4 X 10-9pCi/ml

19 7he UFTR normally releases to the holding tanks approximately 1500 milliliters of primary coolant per week due to waste from primary sampling. The average acti-vity for this coolant was 6.17 X 10~ PCi/ml for the reporting period.

On November 27, 1979 approximately 185 liters were released to the holding tanks at 6.58 X 10~ pCi/ml.

On April 25, 1979 approximately 198 liters were released to the holding tanks at 1.26 X 10~ pCi/ml.

The total release of primary coolant to the holding tanks from the UFTR was approximately 461 liters and less than 1.0 micro-curie of beta-gamma activity.

There was no detectable alpha activity released. Allowing for decay in the holding tanks, characteristic half-life of 15 hours1.736111e-4 days <br />0.00417 hours <br />2.480159e-5 weeks <br />5.7075e-6 months <br />, the activity was reduced to less than 1.0 X 10~ microcurie total beta-ganna activity diluted to an average con-centration of less than 3.0 X 10~ pCi/ml released to the environment.

C. The UFTR maintains continuous film badge monitoring in areas adjacent to the UFTR complex. All exposures have indicated less than 10 milliroentgens per month.

During the reporting period there were only two personnel who received greater than 10 mrem for a one month period.

1. January,1979 - One Reactor Operator received 30 mrem gamma whole body dose believed to be the result of wearing his film badge during a set of dental X-rays.
2. January, 1979 - An experimenter received 80 mrem gamma whole body dose while cleaning an irradiated piece of experimental apparatus.

April,1979 - The same experimenter received 30 mrem gamma whole body dose during welding of irradiated experimental equipment.

July,1979 - The same experimenter received 40 mrem gamma whole body dose while manipulating some experimental equipment stored in the hot cave adjacent to the reactor cell.

Dosimeter exposure measurements for visitors to the UFTR were all less than 5 milli-roentgen each for this reporting period.

20 VIII. EDUCATION, RESEARCH, AND TRAINING UTILIZATION I

Note: The participating students are indicated with an *. Other participants I are faculty or staf f members of the University of Florida, unless speci-fically designated otherwise. A ** indicates those students working on theses or dissertations.

1. Ile -Ne Laser Gas Experiment - Dr. R.T. Schneider, Dr. R.A. Walters, D .B . Ca r te r * , J. Cox*, M. Howe *, R. Liang*, T. Roxey*, L. Zapato*

I (Nuclear Engineering Sciences)

Gain measurements were made on a nuclear pumped laser amplifier. The UFTR I was used as a neutron source to study the effects of tie (n,p) T reaction as a pumping source for a nuclear pumped laser. A vacuum system for VUV spectro-scopy was included.

2. Neutron Activation Analysis of Metal Carbides - Dr. W.!!. Ellis, K. Schacter*

(Nuclear Engineering Sciences)

Irradiation of a metal alloy to determine eletaental composition, and to be used for a test of a gamma analysis program.

3. Neutron Activation Analysis of Florida Chert (Clay) - Dr. G .S . Roessler, S.T. liwang* (Nuclear Engineering Sciences)

Determination of trace element composition of samples of Florida chert from various locations.

4. Neutron Activation Analysis of Human liair - Dr. G.S. Roessler, J. Swanson*,

M. Williams *, (Nuclear Engineering Sciences)

Elemental composition variances between individuals and between various locations on an individual's head were determined. 'Ihis served as an evaluation I of technique for crime laboratory research.

I 5. Neutron Activation Analysis of Mercury Sample - Dr. W.H. Ellis, M. Alkowni*

(Nuclear Engineering Sciences)

Irradiation of a mercury standard as part of an on-going study monitoring dentists and dental assi stants.

6. Neutron Activation Analysis of Biological Samples - Dr. G.S. Roessler, J. Swanson*, M. Williams * (Nuclear Engineering Sciences)

Evaluation of system sensitivity for tissue and blood analysis.

I

21

7. Neutron Activation Analysis of Steel Alloy - Dr. W.H. Ellis, K. Schacter*

(Nuclear Engineering Sciences)

Irradiation of a steel sample to determine elemental composition and to be used for a test of a gamma analysis program.

8.

thutron Activation Analysis of Human Hair - Dr. G.S. Roessler, J. Swanson*,

M. Williams * (Nuclear Engineering Sciences)

Comparison of elemental composition of hair samples from randomly selected subjects.

9.

_ Neutron Activation Analysis of Biological Samples - Dr. G.S. Roessler, J. Swanson*, M. Williams * (Nuclear Engineering Sciences)

Evaluation of system sensitivity for tissue and blood analysis.

10.

Neutron Activation Analysis of Shark Tissue - J. Swanson (Nuclear Engineering Sciences), C. Harrod * (Florida State University, Department of Chemistry)

The use of neutron activatf on analysis to determine trace amounts of Hg-196 in freeze dried shark tissue.

11. Reactivity Check of Pyrex Tubes - Dr. R.A. Walters, J. Cox*, R. Liang*(Nuclear Engineering Sciences)

Check of the reactivity effect of pyr ax tubes to be used in a UF6 gas experi-ment.

12. UF Decomposition - Dr. R.T. Schneider, J. Cox*, B. Carter *, M. Rowe*,

6 R. Liang*

(Nuclear Engineering Sciences)

To determine the effects of neutron flux on the stability of UF ~

6 ing and interaction with fission products.

13. Neutron Activation Analysis of Sea Bottom Sediment - J. Swanson* (Nuclear Engineering Sciences), G. Choppin, S. Arthur *(Florida State University, Department of Chemistry)

Evaluation of the concentration of rare carths in sea bottom sediment.

14. Neutron Activation Analysis of Quartz Vials - Dr. W.H. Ellis, J. Swanson*

(Nuclear Engineering Sciences)

Neutron Activation Analysis to evaluate the purity of quartz vials to be used to bold biological samples.

L --

22

15. Xe-Br Eximer Emissions - Dr. R. A. Walters, J. Cox* (Nuclear Engineering Sciences)

Ultraviolet diagnostics of charged particle excited gases.

16. UF Decomposition - Dr. R.T. Schneider, J. Cox*, B. Carter *, M. Rowe*,

6 R. Liang* (Nuclear Engineering Sciences Experimental measurement of the efficicncy of energy transfer from the He (n,p) T reaction to optical excimer emissions.

17. Nuclear Engineering Laboratory I (ENU 4505) - Dr. W.H. Ellis, Y. Schacter*,

Themis Kanellopoulos* , T. SooHoo* (Nuclear Engineering Sciences)

This Nuclear Engineering Laboratory for undergraduate students used the UFTR for a series of experiments and exercises that included: radiation fic1d surveys and radiation protection, measurement of th diffusion length of neutrons in graphite, low and high power reactor operations, 1/m approach to critical by control blade, temperature coefficient measurements, and blade reactivity measure-ments by blade drop and positive period techniquc ,.

18. Nuclear Engineering Laboratory II (ENU 6516) - Dr. E.E. Carroll, T. Kanellopoulos*

T. SooHoo* (Nuclear Engineering Sciences)

This Nuclear Engineering Laboratory for graduate students used the UPTR for a series of experiments dhat included statistical weights and danger coefficients.

19. Principles of Nuclear Reactor Operations (ENU 5176) - Dr. N. Diaz, Dr. E. Dugan, UPTR Staff (Nuclear Engineering Sciences)

For this course, students are assigned in pairs to spend two hours weekly in the UFTR cell performing reactor startups, shutdowns, operations at power, as well as tests and calibrations of reactor systems and nuclear instruments normally done as routine checkouts. This course is recommended for senior undergraduate and graduate students in Nuclear Engineering. All student activities in the UFTR are performed under the direction of a licensed Reactor Operator or Senior Reactor Operator.

20. Nuclear Regulatory Commission Reactor Operator Examination - J. Buzy (NRC)

J. Cantlin (RO candidate)

-V

23

21. UFTR Instrument Alignments and Calibrations - UFTR . Staff performed cilibration check of primary coolant flow meter and temperature recorder and a calorimetric run was made to check the calibration of the nuclear instruments.

Blade worth determinations were made using the control blade drop technique.

22. UPTR Requalification Training - UPTR Licensed Staff A new requalification program was established this year to more closely follow the recommended NRC guidelines.

'Ihis requalification program establishes a required number of startups, weekly checks, daily check, drills, and lectures for each operator to participate in order to maintain proficiency.

m m

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'IllESES , PUBLICATIOilS, REPORTS AND ORAL PRESEllTATIONS I

IX.

OF WORK RELATED 10 illE USE AND OPERATION OF T!!E UPTP I 1. "Nuc1 car Pumped Laser Reactors," Dr. R.T. Schneider and Dr. R.A. Walters, Transactions of the American fluclear Society, Vol. 32, June, 1979.

2. "UV Diagnostics of Charged Particle Excited Gases", Dr. R.T. Schneider, Dr. R.A. Walters, J. Cox, Final Repn t for DAS660-78-60045, U.S. Army, BMDATC University of Florida, May,1979
3. Oral presentation given at a contractors meeting for DASG-60-79-C-0083, Dr. R.A. Walters, University of Florida, August, 1979.
4. "!Ieutron Activation Analysis of Chert", Sun Tae liwang, Masters Project, University of Florida, March 1979.
5. "fluclear Pumped lle-tie Lasers", Dr. R.T. Schneider, D.D. Carter, M.J. Rowe, Applied Physics Letters (Awaiting Publication), 1979.
6. Oral Presentation given to the tJational Aeronautics and Space Administration, Dr. R.T. Schneider, University of Floriala, August, 1979.
7. Thesis prepared by J. Mack and B. Carter, University of Florida, 1979.

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