Models SRJ-7 and HRJ-7 Juno Survey Meters

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XI0 XI00 SELECTOR SWITCH CALIBRATION CONTROLS (UNDER PLUGS ) METER -. ZERO CONTROL G TAB / INTERNAL ZERO CONTROL (UNDER PLUG) TECH N I GAL A S SO C IAT ES JUNO MODEL 7
1 . GENERAL DESCRIPTION MANUAL OF OPERATION JUNO RADIATION SURVEY METER MODELS SRJ-7 AND HRJ-7 THE JUNO SURVEY METER IS A PORTABLE, BATTERY OPERATED INSTRUMENT FOR MEASURING THE INTENS1 TY OF, AND DISTINGUISHING BETWEEN ALPHA, BETA AND GAMMA RADIATION. THIS INSTRUMENT IS NORMALLY SUPPLIED IN TWO MODELS: SRJ-7 (STANDARD RANGE) WHICH HAS A SENSITIVITY RANGE SUITABLE FOR ALL ROUTINE AP- PLICATIONS; AND HRJ-7 (HIGH RANGE) FOR USE WHERE EXCEPTIONALLY HIGH RADIA- TION LEVELS ARE LI KELY TO BE ENCOUNTERED. To EASI LY I DENTI FY THE HIGH RANGE JUNO (HRJ-71, THE RANGE SELECTOR SWITCH KNOB AND THE METER FACE ARE RED IN COLOR. BOTH MODELS MEET A.E.C. SPECIFICATIONS. THE INSTRUMENT COMPRI SES AN I ONI ZATI ON CHAMBER, AN ELECTROMETER CI RCUI T, AN INDI CATI NG METER CALI BRATED DI RECTLY IN MR/HR, A REMOVABLE PLUG-IN BATTERY PACK, AND TWO ABSORPTION FI LTERS FOR THE REJECTION OF ALPHA AND BETA PARTI- CLES. THE JUNO IS SELF-CONTAINED IN A HARD-CHROME PLATED ALUMINUM CASE WHICH CAN BE EASILY DECONTAMINATED WHEN NECESSARY. THE MODEL 7 JUNO IS DESIGNED TO PERMIT OPERATION UNDER HIGH HUMIDITY CONDITIONS. THE SWITCH BOX, WHICH CONTAINS THE HI-MEG GRID RESISTORS (R-I, R-2, AND R-3) AND THE ELECTROMETER TUBE (V-11, IS SEALED BY MEANS OF GASKETS. A REPLACEABLE DESICCANT CARTRIDGE IS USED TO TAKE CARE OF ANY LEAKAGE OF MOISTURE INTO THE BOX. I I . SPECIFICATIONS RANGES: MODEL SRJ-7 JUNO (STANDARD RANGE): 50, 500, 5000 MR/HR FULL-SCALE (IMPROVED A.E.C. MODEL SlC-17B). WHITE METER FACE. MODEL HRJ-7 JUNO (HIGH RANGE): 250, 2500, 25,000 MR/HR FULL-SCALE. (IMPROVED A.E.C. MODEL SlC-17D). RED METER FACE. IONIZATION CHAMBER: VOLUME: 27 CUBIC INCHES WINDOW OPENING: 3" x 4 s/arr ALPHA SCREE ? : 0.3 MI L RUBBER HYDROCHLORIDE (0.45 MG/CM 1. ALPHA REJECTION ABSORBER: 0.01l' CELLULOSE ACETATE SHEET (36 MG/CM*). BETA REJECTION: 0.102~1 ALUMINUM (720 MG/CM~) DISTANCE FROM BOTTOM OF FEET TO THE ALPHA SCREEN 1 .7 CM. ACCURACY: $lo$ TO -5% OF GAMMA RADIATION INTENSITY WHEN AIR DENS1 TY CORRECTIONS ARE MADE. - 1 -
Page 1 and 2: I MANUAL OF OPERATION JUNO RADIATIO
Page 3: MANUAL OF OPERATION JUNO RADIATION
Page 7 and 8: SUPPORTED BY AN ANTI-VIBRATION TUBE
Page 9 and 10: SRJ-7 HRJ-7 V. CALl8RATlON CONS1 DE
Page 11 and 12: JUNO MODEL 7 PARTS LIST R 1 STANDAR
Page 13 and 14: I------------- SHIELD -1 I a I v- I
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Page 18 and 19: Models SRJ-7 and HRJ-7 have similar
Page 20 and 21: MANUAL OF OPEWTION e JUNO RADIATION
Page 22 and 23: Tube : Ranges : 1 each Sub-Miniatur
Page 24 and 25: 75 micro amps also. These two curre
Page 26 and 27: indications on the meter will not b
Page 28 and 29: TECHNICAL JUNO MODEL 6 ASSOCIATES P
Page 30 and 31: TECHNICAL ASSOCIATES BURBANK, CALIF
Page 34 and 35: _I_ ___I_- __ci____ __I-- II-_____
Page 36 and 37: Bulletin No 167 INSTRUMENTATION FOR
Page 38 and 39: Bulletin No. 168 INSTRUMENTATION FO
Page 40 and 41: T E C H N I C A L ASSOCIATES INSTRU
Page 42 and 43: 7 . PRICE LIST (Continued) C-2b c-l
Page 44 and 45: PRICE LIST IN GENERAL Unit prices a
Page 46 and 47: P ECI F I CAT1 ONS RADIATION RANGES
Page 48 and 49: for use with Technical Associates S
Page 50 and 51: PECIFICATIONS MODELS DS-5B and DS-5
Page 52 and 53: ALOGEN QUENCHED permanently sensiti
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Bulletin No. 162 162 162 162 162 16
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T E C H N I C A 1 ASS0 C I AT E S 1
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Bu//etin No. 159 & INSTRUMENTATION
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Bulletin No. 159 MODELS SRJ-6 and H
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Bullefin No. 185 INSTRUMENTATION FO
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4-DIGIT SODECO REGISTERS CLOTHING P
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HIGH VOLTAGE POWER SUPPLY MODEL RHV
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! - ALOGEN QUENCHED permanently sen
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FROM: NUCLEAR CORPBRATPON OF AMERIC
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L . . . PRICE LIST TECHNICAL ASSOCI
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PRICE LIST (Continued) Bulletin No
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Bulletin No. 189 189 189 189 189 Mo
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Bulletin No. 206 UNIVERSAL LEAD SHI
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Bultetin No. 783 ,./ 0 Built-in tra
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Bullefin No. 200 A DECADE SCALER, M
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& FRISKER-MONITOR, u MODEL FM-1 0 I
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Bullefin No. 205 GAMMA SCINTILLATIO
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Bulletin No. ?80 INSTRUMENTATION FO
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7M -9161
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Bulletin No. 187 INSTRUMENTATION FO
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Bulletin No. ?89 INSTRUMENTATION FO
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...................................
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Bulletin No. 182 204 204 204 204 20
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Bulletin No. 168 168 168 168 168 16
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.- /" ,,/ NUCLEAR INSTRUMENT & CHEM
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~ 5, The plug-$n Geiger tube (mode%
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csPBide with %he atoms of gas in &h
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CA.LIBUTION COE1RECTI[QNS * A plo%
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G.M. TUBE CK 1020 i TUBE SGKET TUBE
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3e The %op piece may be folded to o
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falls to the background value, the
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BATTERIES B1 B1 B3 RESISTORS SECTIO
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l v i m .- I t-"I c; *I a' - -*--
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w. BULLETIN V-4010 $ micro- microam
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model V multiple range model Model
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the Analyzer January 1965 Volume VI
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6 c
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i L Beckm a n 1 . . ~ C , . D . * O
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1 Fire-gas analyzer used in trainin
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J Infrared spectrophotometers and r
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the instrument range. At the 400 cm
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1 3 9 4 4 1 3 4 5 2 4 13 3 2 8 3 2
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I 3 1 11 4 1 5 1 1 5 4 2 11 1 2 14
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t - ... t Literature New literature
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c BUSINESS REPLY MAIL No postage st
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HoodFoomNo. 1 It fl 3-53 h
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I Beckman./ Pnst ructions I BECKMAN
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Section 1. INTRODUCTION A. DESCRIPT
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1 - 2% 8 10- CURRENT 10-9 10-l' 11
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Section 2. INSTALLATION A, SPACE RE
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2. Cable for Recorder. To connect t
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Section 3, OPERATION A. OPERATING C
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e difficult to obtain permanent adj
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Section 4. MAINTENANCE A. EQUIPMENT
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a. Connect a known current of amper
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d. Use small radium source to adjus
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I-i E. F. Johnson I 1.105- 520 P I
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amplifier behaves like a high-gain
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The change in voltage necessary to
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Syinbo 1 Section 6. PARTS LIST De s
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I I------- AMPLIFIER UNIT REGULATED
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OPERATING P ROC E D U RE Without th
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COLLECT PREPAID 1 DATE SHIPPED SHIP
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SECTION I OPERATION Figure 1. Model
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6. METER Indicates the magnitude of
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SECTION II MAINTENANCE c* II I&l In
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- Input Signal Current R1 To Input
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7. FEEDBACK CIRCUIT The filtered vo
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i i Beckman 1500 Micro-Micro I I I
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E. CURRENT CALIBRATION The current
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is required. Actual trial replaceme
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F3’V7’V8’ LFI LF2 ‘SI ‘75
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Symbol Description Beckman Part c1
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(' A> '3 ) , , J * b . '-- Another
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Models SRJ-7 and HRJ-7 Juno Survey Meters

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