or PROGRAM 22 Project 22.1 - Time Intensity Measurements - Louis Wouters - UCRL 22.2 - Remote Alpha Measurements On the Ursula complex of islands, which are shown as Ruby and Sally on this map, we are going to make measurements on Yuma and Kickapoo, in a manner quite similar to those described by Bob Patten, his alpha measurements, The Mohawk experiment is a sanewhat more complicated experiment in which we will attempt not just to measure the reaction rate, but also an interval of time between two portions of that experiment. In all the Ursula complex experiments, we will have detectors both in the cab and back in the vicinity of the blockhose, with coaxial cables bringing signals into the recording station. The magnitude of that program can probably best be estimated by saying that there will be of the order of 30 oscillo- scopes (that is 30 of these recording type oscilloscopes) in the blockhouse. The Tare experiment at Bikini, the one called Zuni, is sanewhat more along the lines of what UCRL has done in the past on CASTLE, except for the fact that we are not bringing 12 miles of pipe with us. And that has its canplications, because the pipe does insure that there won't be any jet aircraft, ships, a piece of angle iron all these things that people have mentioned - in the path of our gammarays for the ten or several microseconds that we have to have a clear path. And, I do want to make that point. I think that is one value of a meeting lile this, that we do need, along our two channels that we will be looking at, an absolutely clear path. Since we are going to have the air attenuation there already, we can't afford to have any additional equipment in the way. To explain that a little more, those of you that were on CASTLE will remember that we had vacuum pipes leading fram the zero site to the vicinity of the recording station. In this case, we will have two observation channels which will not be parallel, there will be a slight angle to them, so that they will diverge fran the zero Site on Tare to a position several yards apart at the far eni, the blockhouse end, of Tare site. Now, that experiment will involve again about 3 oscilloscopes in the blockhouse, and a total of about six detectors scattered at various points on the island, at the end of these transmission paths and at the zero site, As far as I know, our operational plan is to attempt to set up the permanent atations as early in the progran as possible. I am hoping, personally, that all of our own installation work - the progress of our work will be such that we will be able to start dry running around April 15th. The manpower requirement, I think, is in, and also most of the construction requirements have been in for some time. I don't believe there willbe any more construction, except for the possibility of reactivating same station somewhere on one of two sets of islands, in an unoccupied blockhouse if we can find one that could be used, and this has to do with the extra tests that have been brought up once or twice “here before.