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INDC(SEC)-46/U+R+F+SIN DC INTERNATIONAL NUCLEAR DATA ...

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94 PLUTONIUM 239 NEUTRCN N,2N (CONTINUED)<br />

STATUS<br />

STATUS<br />

ALD MATHER+ - AWREZO-72/7 2. IN PROGRESS 6 TO 13 MEVo<br />

94 PLUTONIUM 239 NEUTRCN N.3N<br />

66206.8 1 So 0 MEV 20o0X 1 FR AoMICHAUDON BRC<br />

STATUS<br />

STATUS<br />

ALD MATHER* - AWRE/0-72/72, IN PROGRESS 6 TO 13 MEVo<br />

94 PLUTONIUM 239 NEUTRON FISSICN CROSS <strong>SEC</strong>TION<br />

661.0 4S 1 Oo 0 KEV ISoO MEV 1 o 0 X USA GoEcHANSEN LAS<br />

RELATIVE TO U- 235C<br />

ENERGY RESOLUTION 3 PERCENT. ENERGY<br />

CALIBRATION 1 PERCENTo<br />

631439 1o 00 EV 1 Co 0 MEV BoHUTCHINS GEB<br />

PRIORITY ENERGY RANGE<br />

ACCURACY<br />

1 1 EV TO 10 KEV 3 PERCENT<br />

2 10 KEV TO 1 MEV 2 TO 5 PERCENT<br />

1 1 MEV TO 10 MEV 5 PERCENT<br />

VERIFICATION OF CURRENT ACCURACY OR INTERMEDIATE<br />

ACCURACY USEFUL;<br />

NEED RELATED ACCURACY FOR 5-10 PERCENT ENERGY BINS<br />

FOR FAST REACTOR CALCULATIONSo<br />

NEW REOUESTc<br />

691<strong>46</strong>7 1o 00 EV 1Oo 0 MEV<br />

COECTILL<br />

Po Bo HEMMIG<br />

ANL<br />

AEC<br />

A: ACCURACY 3 PERCENT BELOW 20 KEV, 2 PERCENT, 20 KEV<br />

TO 3 MEV, E PERCENT, 3 MEV TO 10 MEVo<br />

O: HIGHEST PRIORITY FOR FAST REACTOR CALCULATIONSo<br />

692426 lo 00 MEV 5o 00 MEV<br />

CoGoCAMPBELL<br />

WIN<br />

0: RATIO TO U-235 FISSION CROSS <strong>SEC</strong>TION ACCEPTABLEo<br />

A: ACCURACY FOR AVERAGE VALUE OF THE ERROR BETWEEN<br />

E AND 2EC<br />

o: FOR FAST REACTORSO<br />

M: MODIFIED (PARTIALLY FULFILLEDLO<br />

693076 2So 3 MV 15o 0 MEV MoMoISLAM RAM<br />

FOR FAST REACTORSc<br />

714024 lo 00 KEV 4o 00 MEV CCP MoNoNIKOLAEV FE I<br />

RATIO TO U-235 FISSION CS IS WANTED BUT ABSOLUTE<br />

MEASUREMENT AND MEASUREMENT OF RATIOS TO B-l0<br />

(N. ALPHA) . L I-6(N, ALPHA ) CROSS <strong>SEC</strong>TIONS AND<br />

OTHER STANDARDS WOULD BE VERY USEFULo<br />

BELOW 30 KEV MEASUREMENTS OF TRANSMISSION CURVES<br />

BY FLAT RESPONSE DETECTOR AND BY SELF DETECTION<br />

METHOD WITH FISSION DETECTOR WANTED FOR<br />

SELFSH1ELOING EVALUATIONo<br />

THESE CURVES MUST BE MEASURED WITH ATTENUATITNS OF<br />

THE PRIMARY BEAM DOWN TO 1 PERCENTo<br />

ACCURACY REQUIRED TO BETTER THAN 2o 0 PERCENTo<br />

OPTIMUM PRECISION OF 10 5 PERCENT DESIRED IN<br />

REGION 2C KEV TO 1 MEVo<br />

LETHARGY RESOLUTION OF ABOUT 0o2 CONSIDERED<br />

SUFFICIENT FOR SUCH MEASUREMENTSo<br />

SEE GENERAL COMMENTS IN THE INTRODUCTION,<br />

REQUEST CONSIDERED FULFILLED, WHEN AT LEAST THREE<br />

MEASUREMENTS WITH DIFFERENT METHODS AGREE WITHIN<br />

REQUESTED ACCURACYo<br />

FIRST PRIORITY BECAUSE IT IS DIFFICULT TO<br />

INTERPRET THE SELF-SHIELDING FACTORS FROM<br />

MACROSCOPIC <strong>DATA</strong> ONLYo<br />

SUBSTANTIAL MOO I F ICA T ION So<br />

721065 2So 3 MV lo 00 KEV<br />

BoHUTCHINS<br />

GEB<br />

DIRECT MEASUREMENTS DISAGREEo<br />

IMPROVED PRECISION NEEDED FOR THERMAL REACTORSo<br />

U AND PU HALF LIVES SHOULD BE CONFIRMED AS THEY<br />

AFFECT THIS MEASUREMENTo<br />

SUBSTANTIAL MODIFICATIONSo<br />

221066 1 Oo 0 KEV 14o 0 MEV<br />

Po Bo HEMMIG<br />

AEC<br />

Q: RELATIVE TO U-235c<br />

AVERAGES OVER 10 TO 20 PERCENT ENERGY INTERVALS<br />

WANTEDo<br />

A: ENERGY RESOLUTION 3 PERCENT, ENERGY<br />

CALIBRATION 1 PERCENTo<br />

241125 1Oo 0 KEV lo 00 MEV<br />

BoHUTCHINS<br />

0: RATIO TO U-235 (N.F) WANTEDo<br />

M: NEW REQUESTo<br />

242606 lo 00 KEV 5o00 MEV SWC Ho HAEGGBLOM<br />

A: ACCURACY 2 PERCENT TO 1 MEV,<br />

0: FAST REACTOR CALCULATIONSo<br />

5 PERCENT ABOVEo<br />

242635 1 So 0 MEV AoMICHAUDON BRC<br />

A: ACCURACY 5 PERCENT TO 1 KEV. 2 PERCENT ABOVEo<br />

0: FOR CRITICAL ASSEMBLIES,<br />

FISSION LIST PAGE IIo 87

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