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[Deleted], Z Division, Lawrence Livermore National Laboratory, Challenges of Advanced Nuclear Weapon Development in Pakistan, May 1999. Top Secret/Codeword.

• Challenges of Advanced Nuclear Weapon Development in Pakistan U I Ii ___ _ _ _ _ __ b o' Q _ Foreign Nuclear Programs Section Z Division NAI Directorate Lawrence Livermore National Laboratory May1999 This work has been funded by the Office of Intelligence US Department of Energy lX £ b Co -J l '3J ftLC iW tS DAI# This document contains Restricted Data as defined In the Atomic Energy Act of 1954 Unauthorized disclosure subject to Administrative and Criminal Sanctions CNWDI Sigma 1 NOFORN ORCON Gamma Controlled Item - I Classified b ---- - - i • Name 1111d 11111 '• rr r l l' Derived from - - M_ul tip_le_s_ou_rc_e- -s_ _ Gu de or aoun e and dale r- ' Qv ' · Il J sd-32s-001 a-99-G _ Page 4 I ' lrus page is intentionally blank --·------ - - Contents U Executive Summary U Introduction U Pakistan's_Present_ clear Weapon Status U 7 8 8 10 12 13 16 18 '' 19 20 21 21 22 23 23 _ _____ _ ___ __ _ _ ---- - i - ---- 24 Policy Implications U · • •- - - - 'is - Conclusions U' i 27 References U 28 Distribution U 30 Figures U A re Figure 2 9 11 Figure 3 rL -_ - __ - - i -_ a _- _ ---- -- 11 15 ----------- ------- ·t J 'i - j _ • I ' -------- -------- - SC-326-0018·99-G Page 6 This page is intentionally blank - ---------- --------·--- ------------· - __ Challenges of Advanced Nuclear Weapon Development in Pakistan U I ' t Executive Summary U - 't tiC 2 ' I i - ry - b I l Introduction U _ _ I b 1 l - - - - - - - --- - --- - - --- 'DO '-7 J ---------- ·------ _ - - -- - i SC-328-0018-99-G Page9 b e e_ L 1 L ------ ----- _ __ ---- ------ - - - -- - · --· ' SC-326-0018-99-G Page 10 - - - kJE SI ·- -· ----- ---- I '·- 1 I l - ' • U Temperature in thermonuclear work is usually expressed in terms of equivalent kinetic energy 1 keV 1 16 x 107 K bu1 h · --------------- SC-326-0018-99-G Page 12 ·- ' _ I I ' SC-326-0018-99-G Page 14 1 06 1 1 3 SC-326-0018-99-G Page 15 1 b · I r l I I' I I ---··- __ _ _ 'l ' - I l · ' ' l cf-3 _ j SC-326-0018·99-G - - - - - - - -- - - - ----- - 17 _ --··- --- - ·--- ·-- -- Page - - -- - - _ ' ' JC b l 3 SC-326-0018-99-G Page 18 ___ --- -- -·· - 4 _ __ bor b ·J b • I • I I 'IJ I b · 1 L I l 1 • SC-326-0018-99-G Page 20 -- IJ Ol b ' · b I ' --· - - - - - - - · - - -- - -i • bl· b - bl I I II ' 'I I I I I I I --· -- · -1 't _ I ' l _ b I ------ - - -------' I ' l Ij I t oS b ·J I I I ·o l I I ' I i I I I r I SC-326-0018·99-G Page 24 l yde Ot _ 'O '-' r t bl' - - · i· - l ' I I I • U Slifer stands for ihorted location indicator by trequency of tlectromagnetic sonance a way of measuring the rate at which a cable extending away from the shot point is shorted at the shot end by the expanding shock wave Because the rate depends upon the yield the latter can be determined Gas sampling is a way of sampling the air in the shot cavity ules to days after the shot by pumping through a preemplaced hose or permeable cable for gaseous fission products and chemical tracer gases to determine the number of fissions and thus the nuclear yield -l ------ ------ · t 1 r-t b I SC-326-0018-99-G - I tr 1r tn· -- 7' • Page 25 tlJ Policy Implications U • I _J _ -· I l t '• j SC-326-0018-99-G Page 27 b t I • • Conclusions U _ ___ ___ _ - - -- ' I ' Y' 1 ' I • SC-326-0018-99-G • Page 28 I · I uc ear ue issues of 6 February 1989 6 March 1989 3 April 1989 1 May 1989 U Tritium Transfer to Nuclear Weapons Program Detailed JPRS-TND-90-013 Near East South Asia pp 35-38 8 August 1990 U l I r b • I I I • SC-326-0018-99-G Page 30 ' ---------- ________ _____ Distribution- U ----------- -'I - Lawrence Livermore National Laboratory Internal Distribution D lrecto r's Office hot Internal Z Division DDO I 1 • Air Force •·1 -I•• - _ ·- --------- ------ • I ' -- ---- I ' · ___ jSC-326-0018-99-G Page 31 t L 1 Defense Tbrnt Rec uction Agency Joint Special Operations Command De Los Alamos National Laboratory Department of Ene Headquarters - ·L • SC-326-0018-99-G Page 32 ------ - - - - - ·- ---·-·-·---·- - - ----- - • • • • p · Lockheed Martin Energy System Oak Ridge r Jational Laboratory National Air Intelligence Center 'bl I Office of Naval Intelligence 1 b 1 fo Sandia National Laboratory Albuquerque Savannah River J National Securi · aency I I U S Strategic Command I I I t • • • •••• _ • • -- --- i t'r-1'-- - - - vL b 1 '