StephcenG. FRrantze Director, Reed College Reactor · REED RESEARCH REACTOR ANNUAL REPORT September...

REED COLLEGE Portland, Oregon 97202

REACTOR FACILITY

September 22, 2009

Document Control DeskUS Nuclear Regulatory CommissionWashington, DC 20555

Docket 50-288

Enclosed is Reed College Reactor's Annual Report.

Please feel free to contact me for additional information.

Regards,

StephcenG. FRrantzeDirector, Reed College Reactor

3203 SE Woodstock Blvd., Portland, OR 97202-8199 503-777-7222 Fax: 503-777-7274reactor(a)reed.e&i

REED RESEARCH REACTOR

ANNUAL REPORT

September 1,2008 -- August 31,2009

This page is intentionally blank.

REED RESEARCH REACTORANNUAL REPORT

September 1,2008 -- August 31,2009

3203 Southeast Woodstock Blvd.Portland, Oregon 97202-8199

503-777-7222Fax: 503-777-7274

http://[email protected]

Stephen G. FrantzDirector; Reed Research ReactorProgram Director, Nuclear Science

Consortium of the Willamette Valley


TABLE OF CONTENTS

O VERVIEW ................................................................................................................ 7

PEOPLE .......................................................................................................................... 9

Reactor Staff ............................................................................................................ 9Reactor Review Com m ittee ................................................................................ 1I

FACILITIES ................................................................................................................... 13

Reactor Facility ................................................................................................. 13Rotating Specim en Rack Facility ........................................................................ 13Pneum atic Transfer System ................................................................................ 13In-Core Facilities ................................................................................................ 14In-Pool Facilities ................................................................................................ 14Beam Facilities ................................................................................................. 14

USERS ........................................................................................................................... 15

Reactor Operations Sem inar .............................................................................. 15Outside U sers ...................................................................................................... 16Colleges and Universities .................................................................................. 16High Schools and M iddle Schools .............................................. ............................. 16Special Groups ................................................................................................... 16High School Student Project .............................................................................. 17Concordia University ......................................................................................... 17Scaler Kits .............................................................................................................. 18Reed Classes .................................................................................................... 18Industrial and Com m ercial Applications .......................................................... 18

REACTOR OPERATIONS ................................................ 19

Operations ............................................................................ 19Unplanned Reactor Shutdowns .................................... 20

REACTOR M AINTENANCE ........................................................................................... 21

Significant M aintenance .................................................................................... 211OCFR50.59 Evaluations ................................................................................... 21

RADIATION PROTECTION ......................................................................................... 25

Personnel Dosim etry ......................................................................................... 25Fixed Area Dosim etry ....................................................................................... 25Gaseous Releases .............................................................................................. 26Liquid Waste Releases ................................................. 26Solid W aste Disposal ......................................................................................... 26Environm ental Sam pling ......................................................................................... 26


OVERVIEW

This report covers the period from September 1, 2008 to August 31, 2009, and is intendedto fulfill the reporting requirements of the U.S. Nuclear Regulatory Commission LicenseNo. R-1 12, Docket 50-288, the U.S. Department of Energy, and the Oregon Departmentof Energy Rule No. 345-030-010.

We specifically wish to thank Portland'General Electric and Concordia University fortheir financial aid.

Reed College operates a 250 kW TRIGA® Mark I reactor. The Reed College ResearchReactor has been a resource for research and educational projects in the Portland areasince 1968. The main uses of the Reed Research Reactor are instruction and research,especially in the field of trace-element analysis.

During the year there were 617 visitors from schools, colleges, universities, and specialgroups. Additionally, there were 553 visitors as part of Reed College activities(prospective students, family of students, Reed classes, etc.). There were 1020 entriesinto the reactor bay by 43 students as part of the reactor training program and summerinternships. Finally, there were 35 entries by 9 members of the NRC, plus 2 individualsfrom the State of Oregon.

Including tours and research conducted at the facility, the Reed Research Reactorcontributed to the educational programs of 4 colleges and universities in addition to 16pre-college groups. During the year the reactor was taken critical 369 times on 135 days.The total energy produced was approximately 99 megawatt-hours.

The reactor staff consists of a Director, an Associate Director, a Health Physicist, andReed College undergraduate students who are licensed by the NuclearRegulatoryCommission as reactor operators or senior reactor operators. As this report is being'written the licensed operating staff consists of 17 women and 19 men. During thereporting period, all 13 reactor operator candidates passed their NRC exams and all 9senior reactor operator candidates passed their NRC exams.

There were no radiation exposures to individuals in excess of one percent of the limitduring the year. There were no releases of liquid radioactive material from the facilityand airborne releases were well within regulatory limits. There was one shipment ofradioactive waste.

The Nuclear Regulatory Commission conducted their annual inspection duringNovember 2008. There was one Level III Violation based on the overpower event on July21,2008.

Please note that the next annual report will cover September 1, 2009 to June 30, 2010 tosynchronize the report with our other requirements.

Reed Research Reactor Annual Report 2008-2009 Page 7Reed Research Reactor Annual Report 2008-2009 I Page 7


Reed Research Reactor Annual Report 2008-2009 Page 8Reed Research Reactor Annual Report 2008-2009 Page 8

PEOPLE

Reactor Staff

During the period September 1, 2008 to August 31, 2009, the staff consisted of:

Reactor Director:

Associate Director:

Reactor Supervisor:

Training Supervisor:

Assistant Training Supervisor:

Requalification Supervisor:

Radiation Safety Officer:

Health Physicist:

Senior Reactor Operators (SRO):

Stephen Frantz (4/94 - Present)

Robin Bjorkquist (7/09 - Present)Vanessa Holfeltz (7/07 - 7/09)

Reuven Lazarus (5/09 - Present)Robin Bjorkquist (8/07 - 9/09)

Rosie Cottingham (5/09 - Present)Tiffany Cook (8/07 - 5/09)

Mary Solbrig (5/09 - Present)Reuven Lazarus (5/08 - 5/09)

Celia Oney (5/09 - Present)

Kathleen Fisher (1/03 - Present)

Becky Day (4/07 - 5/09)

SophieRobinStevenFluffyTomTiffanyRosieBenStephenAngelaVanessaCindyMolly

BerkmanBjorkquistCaseCassChartrandCookCottinghamFischerFrantzFreyHolfeltzJoeKing

ReuvenTracyCeliaJosephCarlLauraJeremyErinMarySarahMoriahStephen

LazarusMehokeOneyParmaleeRodriguezSardSilverSmithSolbrigSpiegelTobinvon Kugelen

Reed Research Reactor Annual Report 2008-2009 Page 9

Reactor Operators (RO):

KaileighCalebConstanceMatthewKathleenFrancisWesleyRachelToddEdwardKimberlyCaseyMatthewAlinaBenjamin

AhlquistArataBaileyCarlsonConahanDieterleEricksonFordyceGarronGriffithHartfieldHurstellJemielitaKassenbrockLarson

May-LingDanielEllenBrianaMaggie

AlexNealBrandyNickAhmadJonahErikHarryDaniel

LiLidral-PorterMcManisPattonPost

RagusReynoldsRyanSalterShabbarSimpsonThomasTraulsenWall

The list of operators includes everyone who held a license at any time during thereporting period. Reactor Operators who upgrade their licenses to Senior ReactorOperators during the reporting period are listed under Senior Reactor Operators. All ofthe licensed operators are Reed College undergraduate students with the exception of thedirector and associate director.

As this report is being written there are 7 women and 12 men with Reactor Operatorlicenses and 10 women and 7 men with SeniorReactor Operator licenses.


Reactor Review Committee

The Reed Research Reactor has two oversight committees: the Reactor Safety Committeeand the Reactor Operations Committee. Together they comprise the Reactor ReviewCommittee. The Reactor Safety Committee is concerned with emergency preparedness,health physics, radiation safety, physical security, environmental impact, and theinterface between the Reed Research Reactor, Reed College, and the surroundingcommunity. The Reactor Operations Committee deals with the day-to-day operations ofthe reactor, reactor maintenance, reactor safety, operator training, and operatorrequalification. The membership of the committees during the reporting period is shownbelow:

Reactor Safety CommitteeWayne Lei - Chair (Director of Research and Development, Portland General Electric)Norm Dyer (OAR Services)Daniel Gerrity (Chemistry Faculty, Reed College)Kathleen Fisher (Director, Reed Environmental Health and Safety)

Reactor Operations CommitteeDarrell Schroeter - Chair (Physics Faculty, Reed College)Steve Reese (Radiation Center Director, Oregon State University)Juliet Brosing (Physics Faculty, Pacific University)Ron Ross (Portland General Electric)

Ex Officio without vote on both committees:

Peter Steinberger (Dean of the Faculty, Reed College)Stephen Frantz (Director, Reed Research Reactor)Vanessa Holfeltz (Associate Director, Reed Research Reactor)Robin Bjorkquist (Reactor Supervisor)Becky Day (Health Physicist, Reed Research Reactor)




L FACILITIES

Reactor Facility

In addition to the reactor, Reed College has a radiochemistry lab. The equipmentavailable at the reactor facility includes high purity germanium gamma spectrometers,alpha spectrometers, a whole body counter, gas flow proportional counters, ion chambers,beta counters, Geiger Muller tubes, neutron detectors, alpha detectors, and thermoluminescent dosimeter readers. These instruments are used for experiments and trainingin nuclear science and radiation detection. Two exit monitors are in the control room. Aliquid scintillation detector serves the campus radioisotope committee. The reactorfacility has several systems for performing irradiations, described below.

Rotating Specimen Rack Facility

The rotating specimen rack ("lazy susan") is located in a well on top of the graphitereflector surrounding the core. The rack consists of a circular array of 40 tubularreceptacles, each of which can accommodate two irradiation tubes. Vials holding up to17 ml (four drams) are used in this system. Samples are loaded in the specimen rack priorto the start-up of the reactor. The rack automatically rotates during irradiation to ensureeach sample receives the same neutron flux. Typically, researchers use the rotating rackwhen long irradiation times (generally greater than five minutes) are required. Theapproximate thermal neutron flux in a rotating rack positionat full power is1.7 xlO•2 n/cm2s with a cadmium ratio of 6. The specimen rack can be used for gammairradiations (approximately 8 Rad/min) when the reactor is shutdown.

Pneumatic Transfer System

The pneumatic transfer system ("rabbit") consists of an irradiation chamber in the outerF-ring of the core and its associated pump and piping. This allows samples to betransferred in and out of the reactor core very rapidly while the reactor is at power.

Routine use of the pneumatic transfer system involves placing samples into vials, whichin turn are placed in special capsules known as "rabbits." The capsule is loaded into thesystem in the laboratory next to the reactor and is then transferred pneumatically into thecore-irradiation position. At the end of a predetermined time the sample is transferredback to the receiving terminal, where it is removed for measurement. The transfer timefrom the core to the terminal is about seven seconds, making this method of irradiatingsamples particularly useful for experiments involving radioisotopes with short half-lives.The flux in the core terminal is approximately 5x101 2 n/cm2 s when the reactor is at fullpower.


In-Core Facilities

The central thimble is a water-filled irradiation chamber about 3 cm in diameter. Itprovides the highest available neutron flux, about l x 10"3 n/cm 2s. Special sample holdersare used in the central thimble to provide maximum flexibility in experiment design.

A fuel replacement source holder assembly can also be used as an irradiation facility. Thechamber fits into a fuel-element position within the core itself. It holds only one speciallypositioned irradiation container 7.5 cm in length and 2.5 cm in diameter.

Foil-insertion holes, 0.8 cm in diameter, are drilled at various positions through the gridplates. These holes allow inserting special holders containing flux wires into the core, toobtain neutron flux maps of the core.

In-Pool Facilities

Near core, in-pool irradiation facilities can be arranged for larger samples. Neutron fluxeswill be lower than in the lazy susan and will depend on the sample location.

An iridium gamma irradiator is also in the reactor pool for gamma only irradiations.

Beam Facilities

The central thimble can be evacuated with gas, producing a vertical neutron beam. Thisbeam can be used to generate directional neutron flux, or for. limited irradiations abovethe tank. Prompt gamma analysis and neutron radiography can be done. The flux abovethe beam exit is approximately Ix106 n/cm 2s when the reactor is af full power.


U SER S

Reactor Operations Seminar

The Reed Research Reactor conducts an annual seminar series. This non-credit courseserves as an introduction to nuclear reactor theory, health physics, and reactor operation.Some of the. students continue with in-depth reactor operator training and subsequentlyapply for a reactor operator license. If successful, the individual may be hired to operatethe reactor. In addition, existing reactor operators may take the NRC senior reactoroperator exam to upgrade their licenses.

During the reporting period, 13 out of 13 reactor operator candidates and 9 out of 9 seniorreactor operator candidates passed their NRC exams.

Historically. students who fail the NRC exam only fail one section and they are allowed toretake that section later. Figure 2 is a graph of the number of license application eachyear showing how many new RO and SRO licenses were awarded at Reed and how manyfailed to obtain a license. Following the large class, in 2005 we began limiting the numberof license candidates.

35

30 -EFailures

10

5

'H -4'4 - - - -~ '- - - -4 '- '- - -4

Figure 2 Reed Research Reacto r License Exam Results


Outside Users

During the year there were 617 visitors from schools, colleges, universities, and special.groups. Additionally, there were 553 visitors as part of Reed College activities(prospective students, family of students, Reed classes, etc.). There were 1020 entriesinto the reactor room by 43 students as part of the reactor training program andinternships. There were 118 entries by 27 individuals for reactor maintenance andinspections. 43 members of emergency response organizations came for training. Finally,there were 35 entries by 9 members of the NRC, plus 2 individuals from the State ofOregon.

The following institutions have participated in facility tours, experiments, and researchprojects in the reporting period.

Colleges and UniversitiesClark CollegeConcordia UniversityPacific UniversityPortland Community College

Hihh Schools and Middle SchoolsAlice Ott Middle SchoolCatlin Gabel High SchoolC.S. Lewis AcademyLake Oswego High SchoolOwyhee Combined School, NVPioneer SchoolRoosevelt High School (SEIS)Southridge High SchoolSunset High SchoolWilson High SchoolWoodlawn High School

Special GroupsBend Science StationBoy ScoutsI Have a Dream FoundationMESA Science CampON SemiconductorsPortland Parks Senior TourSaturday AcademySummer Institute for Intercultural Communication


Figure 3 is a graph showing the history of visiting groups.

40

.Collegesi and Universities-

-4, -High Schools and Middle Schools *'

gýSpecialG~roupsý30 ,

25 iAA A

, 8%

15 -' A

1 0 ......... .... ............ ...... . .. _ .. . .... ............................................................. .. ........ .......... .. •..... ...... . ........... ................. ............. ....•................... l...r.. .. .. .... . .. ......

• A - -A . *

- A

, 0 .......... 1

195 0 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009

Figure 3 Visiting Groups

Many reactor tours include hands-on use of facility equipment to conduct experiments inradiation science, health physics, and nuclear physics. A typical lab involves determining

the background of a Geiger Muller scalar system and then determining the half-life of asample of radioactive material. College classes are generally more closely tailored to theindividual interests and needs of the Consortium faculty member involved. Experimentsinclude more direct use of the reactor itself by the students, more detailed analysis ofmaterials, and emphasize the incorporation of other classroom activities as much aspossible.

Several special programs for gifted children use the reactor for projects. These aredesigned to enrich their educational program and prepare them for college. Some of thegroups who use the reactor target minority and disadvantaged youth who are historicallyunder-represented in science professions.

High School Student Project

The Reed Research Reactor continues to be used in independent science projects initiatedby students from several Oregon and Washington State high schools.

Concordia University

The reactor provides training and experiments involving radiation, radioactive material,and trace element analysis for Concordia University Classes.


Scaler Kits

Through the generosity of Portland General Electric, the reactor lends out kits containinga Geiger counter, a scaler, and some small exempt sources to local high schools.

Reed Classes

* Chemistry 271 students used neutron activation analysis to determine chemicalcomposition of an unknown compound.

* Chemistry 101 students determined the half-lives of chemical forms of vanadium." There was one Senior Thesis. Lillian Kuehl analyzed selenium uptake in plants as

it affects herbivory.

Industrial and Commercial Applications

The Reed Research Reactor is available for industrial or commercial concerns when itdoes not conflict with our educational goals. As in the past, the primary operationsinvolved neutron activation analysis of materials or environmental samples. The facilityalso provides radiation protection training to interested parties and schools in the area.

During this reporting period Reed irradiated antimony sources for a customer forberyllium mining.


REACTOR OPERATIONS

Operations

During the year the reactor was taken critical 369 times on 135 days. The total energyproduced was approximately 99 megawatt-hours. The large total megawatt-hour was dueto a special project activating antimony for a customer. Operating history by monthappears in table 1. A history of the data is shown in figure 4.

Times Critical Days Operated MW-hoursSeptember 44 19 26.02October 43 15 16.44

November 59 24 24.41December 6 2 0.41January 16 10 2.03February 5 3 1.50March 50 12 4.62April 60 18 10.08May 44 15 4.44June 12 4 0.98July 9 5 3.03

August 21 8 5.48Total 369 135 99.43

Table 1 Operating History

400

350

300

250

200

150

100

50

01992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 "2009

Figure 4 Operations


Unplanned Reactor Shutdowns

There were six inadvertent reactor shutdowns (scrams) as shown in table 2. There were nounexplained scrams that required ROC permission to restart. The number of unplannedreactor shutdowns is consistent with the past as shown in figure 5. Note that following theover power event of 2008, we have lowered the scram setpoints from approximately 109% toapproximately 101%, thus there is more likely to be a scram from overshooting the targetpower.

Date Scram Type Cause Of Scram11/09/08 Linear, Percent Power Overshot target power.11/12/08 Linear, Percent Power, Manual Facility power was momentarily interrupted.12/04/08 Linear Placed channel in test while at power.01/21/09 Percent Power Overshot target power.05/06/09 None Facility power was momentarily interrupted.06/29/09 Percent Power Overshot target power.

Table 2 Unplanned Reactor Shutdowns

25

20

is

10

5

01995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009

Figure 5 Unplanned Shutdowns


IREACTOR MAINTENANCE

Significant Maintenance

Reactor staff performs routine equipment checks on a daily, weekly, bimonthly,semiannual (January and July) and annual (January) basis as required by facilityprocedures. Reed College maintenance personnel assist with routine preventativemaintenance to auxiliary equipment. Significant maintenance operations that were notpart of a regular schedule are listed in table 3.

Date Maintenance09/25/08 Replaced secondary cooling tower fan belt.12/09/08 Sent Linear Channel module to General Atomics for repair12/10/08 Replaced old Multitrend Recorder with new model.12/17/09 Reinstalled Linear Channel.01/08/09 Replaced Fire Detection System01/26/09 Replaced broken pipe on secondary cooling tower.03/04/09 Replaced secondary heat exchanger pressure gage.03/11/09 Relocated rabbit exhaust connection to the stack.03/20/09 Changed primary filter.05/14/09 Made adjustments to operation of ventilation system.06/10/09 Replaced secondary heat exchanger temperature probes.06/11/09 Replaced switch for primary pump.06/11/09 Changed primary demineralizer resin.07/17/09 Bypassed filter housing alarm on APM.07/22/09 Installed additional fuel racks near core.07/23/09 Repainted control room and hallway.07/27/09 Replaced flooring in control room and hallway.

Table 3 Significant Maintenance Operations

10CFR50.59 Evaluations

Screen Number: 08-09 Date: 9/23/08

Remove the old Mt. Hood Soap Company Safe from the reactor bay.

The safe is very large and hard to move. It is beyond the staff's ability to safely moveit. A professional safe mover will be used to remove it from the bay. The reactor baydoors will have to be opened to get it out per our new procedure. If we get any newfuel we Will need a new safe to store the new fuel until it goes into the reactor pool.


Remove the inoperable fume hoods in the reactor bay. They were only functioning asenclosed tables. They must be decontaminated before removal.

Reed Research Reactor Annual Report 2008-2009 Page 2]Reed Research Reactor Annual Report 2008-2009 Page 21

The dirty hood is contaminated and decontamination will be difficult due to thecomplicated surfaces. The safety concern is that some of the parts inside the hood areasbestos. An approved asbestos remediation company must remove them.


Replace reactor bay floor linoleum.

There are no reactor safety concerns. The pool will be covered to keep out straymaterials. The safety concern is that the flooring is asbestos backed so a professionalasbestos abatement company must be used. All the flooring will have to be surveyedfor radiological contamination after removal. The reactor room will be unavailable forother work during the time period, so weekly checklists and wipes will be scheduledaround the process. Any asbestos flooring which is radiologically contaminated willtake special precautions to dispose of. The asbestos abatement company will be:

Lake Oswego Insulation0425 S.W. Iowa StreetPortland, OR 97239


Add a small portable washing machine next to the deep sink in the reactor bay to laundercontaminated lab coats and towels.

The safety concern is that the washing machine may overflow. This would spreadsoapy water over the reactor bay, which would eventually end up in the reactor pool.The clean up would take a long time. There are already other sinks and pipes thatcould similarly overflow to the pool, but this may be more prone to error. Onlytrained staff should use the washing machine to minimize the chances of mishap.There will be laundry detergent stored in the reactor bay. There are other cleaningagents in the bay, already, but the amount of laundry detergent should be kept to theminimum necessary. There will be liquid bleach used in the reactor bay. The quantitythere should be kept to a minimum, with the large containers kept elsewhere. Thewashing machine discharge will go into the deep sink in the reactor bay. This iswhere we hand-wash our lab coats, so the trace amounts of radioactivity going intothe sink will not change.


Add a small exhaust system from the top of the dirty table in the reactor bay to thenormal exhaust system. The fan will have its own switch to turn on when we are openingTriga tubes on the dirty table and it will be off otherwise. It will turn off in isolation.

This will alter the ventilation system by adding another air inlet to the exhaust plenumbetween the reactor bay exhaust grill and the damper, V-10, V-13, and V-14.Normally the new table exhaust fan will be off, but when samples are being opened atthe dirty table the fan may be turned on to draw any gasses from the samples out theexhaust stack and away from the person opening the vials. The gasses will continueon through the normal exhaust stack and the exhaust monitors. When the table

ReedResarchReator nnul Rport200-200 Pae 2Reed Research Reactor Annual Report 2008-2009 Page 22

exhaust fan is turned on, damper V-10 will close to ensure we are not recirculatingthe gasses into the reactor bay. The fan will be started and stopped from a switch inthe reactor bay. Normally it would only be used with opening Triga tubes that havecome out of the lazy susan. It is expected that this will average fewer than four hoursper week. On ventilation isolation signal the table exhaust fan will turn off so that thesystem will work as originally designed. The only difference would be that instead ofall 630 liters per second of air being draw into the exhaust plenum between thereactor bay exhaust grill, a small fraction would go-through the idle table exhaustduct. This should not change the negative pressure in the bay under isolation. Thiswill have no more than a minimal effect on safety systems.


Amendment Number 8 to Technical Specifications.

The details will not be included since the NRC has deferred action on this until the newlicensed is issued in 2010-11.



L4


RADIATION PROTECTION

Personnel Dosimetry

During the period July 1, 2008 to June 30, 2009 personnel dosimeters were issued to 45Reed students and staff. Since dosimeters are changed on a calendar. quarter schedule,this period is the closest to the reporting period. Individuals were issued beta-gammasensitive ring badges and whole-body badges. The Director and Associate Director wereissued beta-gamma-neutron sensitive dosimetry.

During the year the largest annual whole body dose was 14 mrem deep dose equivalent.The largest annual extremity dose was 140 mrem shallow dose equivalent. Both of thesewere staff members (not students). No one exceeded two percent of the federal limits.'

Fixed Area Dosimetry

Radiation levels are continually monitored to provide an indication of the averageradiation levels in the reactor bay and dose outside the facility. All dosimeters monitorbeta and gamma radiation. Two locations also measure neutron dose.

The deep dose equivalent radiation measured by fixed dosimeters during the period July1, 2008 to June 30, 2009 are shown in Table 4. Since dosimeters are changed on acalendar quarter schedule, this period is the closest to the reporting period. The largerthan normal doses along the south wall are due to storing the antimony source whilewaiting for shipment.

Location Height Radiation Jul 1 - Oct 1 - Jan 1 - Apr 1- Total

(m) Detected Sep 30 Dec 31 Mar 31 Jun30

East Wall 1.5 y3, ,n 69 79 13 61 222North Wall 1.6 Y3,, 73 83 21 67 244

West Wall 1.0 13,yn 79 76 22 79 256

South Wall 1.6 Y3,, 207 215 43 106 571North Wall 2.3 Y3, , 72 67 30 60 229

North Outside 2.8 13, 14 7 31 24 76Roof Outside 0.4 Y3,, 5 1 M M 6East Outside 1.5 13, M M M M M

South Outside 0.4 Y3,, M M M M M

Counting Room 1.5 y3,y M M M 4 4Control Room 1.5 13,7 108 124 ý23 46 301

Table 4 Area Radiation Dosimeters.(doses are in mrem per calendar quarter)


Gaseous Releases

The only routine release of gaseous radioactivity is from 41Ar (1.83-hour half-life) and16N (7.13-second half-life). These come from activation of pool water and air in the poolwater and in the irradiation facilities. For calendar year 2008, the average gaseousactivity at the site boundary was 2.96 x 10"0 pCi/ml, which would deliver a dose to amember of the public of approximately 1.48 mrem, well below regulatory guidelines andconstraints. Figure 6 shows the gaseous releases for each year.

1.E-06

1.E-07

1.E-08

1.E-09

I.E-IO

1.E-11

1.E-121992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009

Figure 6 Gaseous Releases Activity (/Ci/ml) at Site Boundary

Liquid Waste Releases

No liquid radioactive waste was released from the Reed Research Reactor during thisreport period.

Solid Waste Disposal

There was one shipment of radioactive waste from the facility during this reportingperiod. On June 18, 2009, three 55-gallon drums containing a total of 6.61 mCi of wastewere shipped via Thomas Grey & Associates to US Ecology in Richland, WA.

Environmental Sampling

Soil samples taken from the area surrounding the facility showed no activity abovebackground. Water samples taken from the facility's secondary cooling system showedno activity above background. The nearby canyon was sampled for activation productsand tritium, but showed no activity above normal background.


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