The3-j and6-j symbols

The3-j and6-j symbols

718 BOOK REVIEWS t h e y are v a h d a n d w i t h o u t g i v i n g t h e e x a c t d e f i n i t i o n s of t h e s ~ m b o l s used I n t h e d e...

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718

BOOK REVIEWS

t h e y are v a h d a n d w i t h o u t g i v i n g t h e e x a c t d e f i n i t i o n s of t h e s ~ m b o l s used I n t h e d e r i v a t i o n of t h e diffusio n coefficients a m o r e d e t a i l e d d i s c u s s i o n of t h e a p p l o x l m a t l o n s w oul d be de s i ra bl e , as for e x a m p l e t h a t t h e field partacles are a s s u m e d to be a t r e s t a l t h o u g h t h e t e m p e r a t u r e of t h e p l a s m a a p p e a r s in t h e f o r m u l a s In t h l s p a r a g r a p h s o m e t w e n t y f o r m u l a s a n d e q u a t l c n s a re given, m l s p r m t s c a n be f o u n d in t h e following four F o r m u l a ( l a ) is w r o n g b y a fa c t or two, t h e e q u a t i o n in line 6, p 165 is w t o n g o w i n g to a s i m p l e m i s p r i n t , t h e e q u a t i o n in h n e 12, p 165 is w r o n g b y a f a c t o r m a n d in f o r m u l a (9) t w o m i s p r i n t s can be fou nd H o w e v e r , t h i s b o o k s h o u l d be w e l c o m e d v e r y w a r m l y , it satasfles a re a l need for a t e x t b o o k in t h e basic p r i n c i p l e s of p l a s m a p h y s i c s I t can be r e c o m m e n d e d to a n y p h y s i c i s t w ho w a n t s t o g e t a bamc k n o w l e d g e in p l a s m a p h y s i c s V O Jensen

Australian A tom*c Energy S y m p o s , u m - - 1958 - - Proceedings o/ a Sympos~urn on the Peace/ul Uses o[ .4tom~c Energy zn Australia held *n Sydney [rom June 2 to 6, 1958 (Melbourne U n i v e r s i t y Press, 1960 788 p £ 5 0 0 ) I n t h e s u m m e r of 1958 t h e A u s t r a l i a n A t o m i c E n e r g y C o m m i s s i o n a r r a n g e d a n u c l e a r e n e r g y s y m p o s i u m , w h i c h s e r v e d t h e p u r p o s e of a local " G e n e v a C o n f e r e n c e " The m i n u t e s of t h i s s v m p o s m m , c o m p r i s i n g some h u n d r e d p a p e r s p r e s e n t e d a t t h e conference a n d t h e d i s c u s s i o n s of t h e sessions, h a v e n o w b e e n p u b l i s h e d in b o o k - f o r m The p a p e r s c ove r a r a t h e r w i d e r a n g e of s u b l e c t s , r e a c t o r m a t e r i a l s , n u c l e a r p o w e r p r o g r a m s a n d reactors, c h e m i c a l p r o b l e m s c o n n e c t e d to n u c l e a r energy, basac p h y s i c s a n d r e a c t o r p h y s i c s , a p p l i c a t i o n of radioisotopes, t e c h n i q u e s in h a n d l i n g r a d i o a c t i v e m a t e r i a l s , e d u c a t i o n a n d fusion E v e n t h o u g h m o r e t h a n 75 p e r c e n t of t h e p a p e r s are w r i t t e n b y A u s t r a l i a n s , s o m e o t h e r countrae% e s p e c i a l l y t h e U n i t e d K i n g d o m a n d USA, h a v e m a d e a n u m b e r of contrabutaons F o r t h o s e i n t e r e s t e d in w h a t is going on inside t h e field of n u c l e a r energ~ m A u s t r a l i a , t h i s b o o k is v e r y v a l u a b l e , b e c a u s e it g i v e s a good p i c t u r e of t h e t y p e s of w o r k t h a t a re c a r r i e d o u t an t h i s field in A u s t r a l i a H o w e v e r , as a general source of r e f o r m a t i o n on t h e d e v e l o p m e n t a n d t h e problems of n u c l e a r energy, t h e s e p r o c e e d i n g s h a v e l i t t l e to offer, b e c a u s e t h e p a p e r s g i v e n o n l y c ove r t h e d i f f e r e n t a r e a s in an u n s a t l s f a c t o r ~ w a y For e x a m p l e t h e i m p o r t a n t fields of r e a c t o r t e c h n o l o gy, h e a t t r a n s f e r a n d r e a c t o r p h y s i c s h a v e been g i v e n v e r y l i m i t e d a t t e n t i o n I n v i e w of t h e fact t h a t t h i s b o o k is p u b h ~ h e d a t t h e s a m e t i m e as t h e p r o c e e d i n g s of t h e s e c ond G e n e v a Conference, whflch gives a m u c h m o r e c o m p l e t e c o v e r a g e of t h e d i f f e r e n t a s p e c t s of n u c l e a r e ne rgy, i t seems l i k e l y t h a t it will raise r a t h e r l i m i t e d i n t e r e s t P L Olgaard

M ROTENBERG, R BIVINS, •

~IETROPOLIS, J

( T e c h n o l o g y Press, M I T , C a m b r i d g e , Mass

K WOOTEN, J R , The 3 - - I and 6 - - 1 symbols 1959 v n v - - 4 9 8 p $ 16)

T a b l e s e x t e n d i n g to h i g h e s t s p i n v a l u e s 8, p r e c e d e d b y a n e x c e l l e n t c o m p e n d i u m of t h e p r o p e r ties of t h e s y m b o l s I t is a p~ty, t h a t n o t all t h e a n a l y t i c a l e x p r e s s i o n s lasted in E d m o n d s ' b o o k are r e p r o d u c e d t h i s w o u l d hax e a d d e d t h e l a s t t o u c h of p e r f e c t i o n to t h i s u.,eful a n d w e l l - p r o d u c e d compilation L R R

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HOFSTADTER, H*gh-energv electron scattering tables (S t a nford U n i v e r s i t y $ 850)

The g r a p h s a n d t a b l e s collected m t h i s b o o k are i n t e n d e d as a tool for b o t h e x p e r i m e n t a l a n d t h e o r e t i c a l p h y s a c l s t s who h a v e to a n a l y s e d a t a on t h e s c a t t e r i n g of ha gh-e ne rgy e l e c t r o n s b;y nuclei Special e m p h a s i s is p u t on s c a t t e r i n g b y p r o t o n s a n d d e u t e r o n s , a n d t h e c o r r e s p o n d i n g " f o r m f a c t o r s " The theoretacal b a c k g r o u n d is p r e s e n t e d , on t h e b a s i s of t h e B o r n a p p r o x i m a t i o n , m a c o m p e t e n t fashion, one ~ o u l d h a v e hked, however, a m o r e e x p l i c i t w a r n i n g a b o u t t h e serious msufflclencaes and u n c e r t a l n t a e s of t h e p r e s e n t t h e o r e t i c a l t r e a t m e n t of t h e c h a r g e d i s t r i b u t i o n of t h e n u c l e o n s I n a b o o k c o n c e r n e d w i t h m e t h o d s a m n n g a t t h e e l i m i n a t i o n of h u m a n t h i n k i n g , it as p e r h a p s n a t u r a l t h a t no m e n t i o n s h o u l d be m a d e of t h e t h e o r e t i c a l w o r k of B o d m e r a n d R e i gnler, whose p u r p o s e as to r e d u c e t h e recourse to n u m e r i c a l c o m p u t a t i o n to a m i n i m u m b~ means of o l d - f a s h i o n e d b r a i n - w o r k T h e a d e q u a c y of R e l g n l e r ' s m e t h o d , a t l e a s t in t h e d o m a i n of lower e l e c t r o n energies as well i l l u s t r a t e d b y t h e r e c e n t e x p e r a m e n t a l p a p e r b y B e l h c a r d a n d Barr e a u (this l o u r n a l 17 (1960) 141) L R