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I refer to your memo of December 9to W. Agntw. Referring t o your first p8ragraph, it is probably not quite correct X t is strictly a budgetary matter, and the to i adic atc that tha DOE is limiting LMPF production periods t o 50% as an energy-saving measure. budget lnvolvas many things besides energy costs - such as maintenance costs, equipment costs, as well as personnel levels. Again, referring to your first paragr8ph, we should look atthe possibility of providing the on another pion channel for some of your biological studies, and for some of the users not directly asrocfated vlth human trial - related research. If we could do that, we’might then be able to provide 16 hours per d8y of treatment time for your program. This should double your present accession rate, i f you could provide t h e medical staff for such an effort. We are indeed running, with reasonable succesa, at 300 pA. However dfff i cult fer ; and although I believe ue shall achieva 1 mA as per our schedule, provided we have adequate development funds, it could easily be that the decrease in reliability at 1 nrlL would force us to run at considerably below that current f o r production runs requiring high be8m 300 PA, and 26 vecks of operation, we are already expariencfng t h e kind of difficulties with overworking our personnel that you recite for your We simply don’t hov vhat the problems will be. The budgetary analysis you make inthe last paragraph of page 2 is qualitatively correct, but a quantitative evaluation is given in the Finally, your desire to have nine weeks of essentially continuous On the one hand this may forcerunning gives us o graat deal of pain. upon us unscheduled downtimes of four- OT five-week duration. On the other hand our physicists are very unhappy that they do not have some
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8ub rt anti al bre8kr during a cycle t o recuperate, to think,to repair faulty equipment and t o take uh8tevcr measures they can t o optimize their use of berm the. The problem is that on so- channels an experimental group is obliged t o rua 24 hours per day, seven days per vetk for the duration of the cycle, uSich is ouch worse than even the However, as you know, u t are going to ex per h nt with 8 very long This should sive you ac y c l e next summer - approximately eighc weeks. chance to see how uny patients you can access in a cycle which i 8 alnost uloa as you want, and i t Will give us8 chance t o experience the kind of problems such 8 long cycle presents t o US in the accelerator,Inthe experimental area8 and among our user constituency. 8 major effort to improve our funding situation. Mwill be better able to ass.- the fruits of that effort and also the fu sibi lit y of longer duty cycles. your program continues t o colmund the highest possible priority that is consistent with our resources, DOE guidelines and legal constraints. Z aut presently makbg Atthe end of the aIa any case let me re-emphasize that Enc. Cycle 20 and 21 draft schedules Heno t o H. Agntw, November 11, 1977