ML20055G011
| ML20055G011 | |
| Person / Time | |
|---|---|
| Site: | Aerotest |
| Issue date: | 06/30/1990 |
| From: | Figueredo D AEROTEST OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20055G010 | List: |
| References | |
| NUDOCS 9007200050 | |
| Download: ML20055G011 (4) | |
Text
37,1% > c.
, i u
, , .,t y:,
Qin ,
c' .' . {l
~ - +~ - -- -
V;:g .>.\ y -)l
[.1 71 ' , . . .
- f - m .
19
- " . j
- ,
a
- i I t.
I '.
i ..
ANNUAL--
SUMMARY
OF. CHANGES, TESTS .AND EXPERIMENTS 1-ii
' j. l 1;
' PERFORMED AT THE .
.t :
q . AER0 TEST R'ADIOGRAPilY AND RESEARCH REACTOR' e
(ARRR) i DOCKET NO. 50 228 FOR' THE PERIOD ENDING JUNE 30, 1990-
/ -i !
'j .
- I m-
~
1 Lj BY t i
- i 'l ff D. E. FIGUEREDO .
- j DEPUTY REACTOR SUPERVISOR.
APPROVED BY:
Hugo Simens
. - - PRESIDENT.
' AER0 TEST OPERATIONS, INC.
.t n~= ;
-900720005o 900706 8
.PDR ADOCK 0500 R 3
[.
z: W .;) ~ :
't
^..\' ,
-.)
= ~- '
ug> ' +.:, aq ' p. '.
( -l j]ii . .
' *ff : .'Q 4:
e t s: '
m .t D
, '~SECTION _1 h :
PART I - CHANCES q A._- During the year the former Reactor Supervisor retired from active k ,
employment.at Aerotest. His place was taken, on an interim basis, by'the 'q y President of the Company. '
' B. Two sharp carthquakes were felt in the area of the reactor during
.this report year. The_ earthquake of October 17, 1989 occurred after the-4 reactor 'had been : shutdown' for the day. The event of April-6, 1990 occurred y during_ shift operations'and. caused an automatic scram. Both events tripped a- 'the carth. motion sensor, which had not occurred from earth motion at any >
. previous _ time. 'After.each. earthquake the reactor was closely inspected for. =!
ng . damage-and none-was found. Jin addition, Control Rod Drop-Tests and Reactivity. q hl?? Measurements were made~to. assure that the reactor was functioning normally, g These tests showed no' anomalies. 1
-t C. Most.of the reactor console electronics are-the 1965 vintage, non-solid state units which were part of the original-installation. These
-units, although perfectly usable, now require.more maintenance'and experience more breakdowns: (and ' attendant spurious scrams) than would. be expected ,with' :
. state'of art components.
D. Reactor operations have stab 111 zed on a. normal two shift routine .,
.between the. hours of>8AM and llPM daily. This has led to 11% more accumulated- l 1341 in this year than . int last year, and 32% more than two years ago. Further D 1
extending the hoursLof operation is not contemplated at this time. 'f I
E .' On-October'.9. 1989, 17 graphite reflector elements, obtained from (
LU.C. Berkeley, were added to the core of the reactor. This change added 46crin reactivity, which.was=wc11'within_thet$3.00 margin all'wed o by the }~
' Technical Specifications. t j
o bJ PART II - EXPERIMENTS
^
One new experiment was performed during the year. The experiments per-
-formed in this reporting period were as follows: )
l
'XPERIMENT l NUMBER- ;
114 Neutron radiography performed in the radiography facilities.
I av 116 Irradiation of hydrocaroon activation analysis sampics, q u > ,
120 Irradiation of. plastic slides impregnated with microscopic
',, quantities of fissionable materials-for the McClellan Air:
Force Base and General Electric Company.
- O -
124 Irradiation of solid state electronic components to determine. i n o, radiation damage. effects. 4 4
a b
~
a' m,
hs 4
.y.
{
O ,'
'U1 db )
- ~ ~ ~ ' ~ ~ ~ ' ~ '
_, , p :y. ,.
+
h; '?
y ,
- ? '
SECTION4- II .-
4 ARRR M0NTilLY ;
OPERATIONS
SUMMARY
~DATE ~0PERATING KILOWATT ACCUMULATED EXPERIMENTS & : UNSCHEDULED-110V RS Il00RS kw fl0URS IRR A DI ATIONS SHUT DOWNS -
u
- 7 237 59054 6583746 7- -1 A 8'-89 249 62226 6645972 8
- 0
- ;9-89 205 51328 6697300 5 '0
.10-89 240- 59748 6757048 7 ~1 11 236 58848 6815894 5 2-
.12-89 207 51711 6367605 6 -1 1-90 282- 70469 6938074 4 0 2-90 229 57191 6995265 5 1 3-90 .253 63206 7058471 7 0 e
- 4. 4190 247- 61505 7119976 'S 3 5-90 290 72412 7192388 6 -2
- 6-90 230 57255 7249643_ -4' 0 TOTALS 2905 724953 7249643 69 11 i
a
s -- >
vHe..c r ., ,
, i
-ARRR UNSCHEDULED POWER REDUCTIONS ,
TYPE OF SCRAM CHANNEL AFFECTED Oper. Barth
- f' Date Auto Man. Spur. Error Cal 1 2 3 4 Quaka H20 Comments 1
. .1 28-89 -
X X X X X 8"Enreinn 2 10-18-8 7 X X Power,n 3- 11-20-8 )
Spurious-
,#- X t fnne _
, 4 11-20-8 ) X X SPuripus E "*#
cb 5 l2-28-8 ) X X X X X f niliiro .
m ;6 ?-13-90 X X X 'X X 7> 4-6-90 X X
!" spurious 8 4-9-90 X X fant L "9' 4-12-90 X X X X X p werfailure spurious-X X fagt 10 5-10-90 spurious X fast 11- 5-10-9( I . X l'
W
,l f
i k L
=%e
<. l
}
'g>
---