Classified Abs t rac t s 392- -402 163

Vacuum Apparatus and Auxiliaries

20. P u m p i n g S y s t e m s

20 17 Cr~ogemc pump tests with hydrogen under ul tra-high ~acuum conditions with range 4 2K and 2.5K See Abstr No 373

20 392. P r e h m m a r ) es t imates for s team-le t air ejectors. I/." S 4 ) A n o n , Chem Enzng 71 13~, 1964 120-122

21. P u m p s a n d P u m p F l u i d s

21 I0 The pumping speed o f t i tanium sputter pumps in ul tra-high ~aeuum See Abs t r N o 344

21 25 11 Desorption experJn)ents in an ultra-high )acuum s~stem, pumped h,~ molecular siege trapped oil diffusion pumps See Ab~tr No 345

21 16 Desorption or 'gases m getter-ion pumps. See ~b~tr No 366

21 17 14 The Ihermo-moleeular pump. a ne~ l,~pe of ~acuum pump See +Xb~tr No a53

21 393 Studies on a mechanical booster ~acuum pump (Japon) M Suznki ~_ec Pap In~t P h ~ Chem Re~ 57 12), Jtlne 196"£ 79-81

21 394 -~ diffusion pump ~lth a new nozzle (G~)/n~,n~) H B(,)llinger, E~p/ Te(hn Ph~ 1114) ,190~,312-~10

22. G a u g e s

22 12 Par t ia l pressure analysis and partial pressure gauges See ~b~tr No 351

22 14 Theory of the Klumb-Schwarz type radiometer gauge. See Ab~tr No 354

22 18 Compara t ive measurements between the Bayard-Alper t gauge and Laf fer ty ' s magnet ron gauge See ~bs t r No 378

22 38 The mass spectrometr ic stud~ of the reaction o f meth) l radicals with oxygen See Abs t r No 439

22 38 A mass spectrometer for s tud)rag chemical reactions. See Abs t r N o 441)

22 16 Gas desorption from the ionization gauge and the pressure in high- ,~acuum s}s tems of small volume. See Abs t r No 362

22 61 12 Problems in establ ishing s tandards for vacuum measuremen t and in cal ibrat ing ~aeuum gauges. See Abs t r No 449

22 18 Difference between nude and enclosed ion gauges on an oil-free system. See Abs t r No 379

22 14 M a s s spectrometer sampling through a small hole m the adiabat ic flow region See Ab~tr No 356

22 12 Theory of Imeant~ of hot cathode ionization gauge. See Ab~tr No 349

22 19 14 The calculation of radiometer forces on measur ing sys tems exhibi- ting rotary s~mmetr~. See Ab~tr No 352

22 27 The MC10 ana l ss i s cell of the Hehtes t 2002 leak detector. See Abstr No 410

22 16 I he interaction of gases and solids in practical desices. See Ab~tr No 370

, , ) ,~

395 Higher pressures ( ~ 1 torr) mass spectrometer (/. ' S 4 ) T ~A M a r t m e t a / , S c w n c e 138 12 Oct 1962, 77-83

22 396 Regulation of iomzation gauge emission current to better than .05 per cent ( L' S -1 ) K '~ Yee and R J Carpen te r R(,i Set hl~oUm 34 (10), Oct 1963 1101

.,) ..)

397. LIItra-hlgh ~acuum ionization gauges ~lth directly heated eleclrodes. (China) C ~ H x ~ a e t a l . -1ctaPh~s 5tnlCa 19121 1903 83-89

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398. Differential manomete r of high sensiti~iU). 4Ftltttt£,) 1 L Peube C R -1cad A¢/ (France) , 257 117), 21 Sept 196], 2"~97-2399

22 14 399. Ionization gauges as a thermal condueti~it) ~aeuum gauge. ( L S -1) -~ D Cro~el l and E L Foles , Re~ Sol In~ttum 34 (7 ) . 1963,

-) ,q_l

400 Quadrupole high frequency mass spectrometer for residual anal~sm in high vacuum systems. (,G~tman~) q-he quad rupo l e tube is 20cm long, o f all metal cons t ruc t ion and bakeable up to 450 C No deflecting magne t [7 used, the m ass separa t ion being per formed b~ means o f a hJgh frequency electric field The ion source Is In the form of a nude sys tem and the no rma l ion collector can be exchanged agains t a secondar3 electron m u h ] p h e r The ma~s range is f rom 1 to 120, ~ l th a resolut ion M M of approx imate ly 100 For 100 per cent t ransmiss ion , the sens[tt~lt3 is o f the order o f 2 10 ~ A ' t o r r The lowest detectable partial pressure ),, m the region o f 10 -t3 torr (German) )

~A J

C Brunnee et al I/a/~ttltm TechnA, 13 12), March 1964, 35-42

22 401. Ionization-type vacuum gauge ~i th electron multiplier out- put. ( U S -1) J B H u d s o n et a l , Rer Sc~ Ins t rum, 35 [I), Jan 1964, 127

22 402. Anomalous residual currents with ul tra-high ~aeuum use o f Bayard-AIper t iomzatton gauges. (U S A ) T E H a r t m a n , Rel Set l n s t rum , 34 111), No~, 1963, 1190-1195.