7 1.5.2 Data reduction, development, installation, end main- tonanco of the instruments will be performed by the Instrumonteation Group, (Problom 6.4f). 1.5.3 Gamma field, diroctional gamma, and betc surface oud) will be coordinated by the Radiological Survey Group (Problom 6.40). 1.5.4 Arrangement, installation, and maintenance of the weshdorm system will be performed tiith the help of the Ships! Operctions Officer and mcmbers of Transit ABLE's crow, 1.6 Assumptions and Limitations 1.6.1 Same as in basic plen,. 1.6.2 It is assumed that tho gamma rediction ficld result- ing from a semi-infinite enveloping contaminating modium will be identi-~ cal at all woatherside detoctor stctions on tho ship, and that this gemma radicstion ficld is not cffectod by the washdom, 1.6.3 It is assumed thet the relative contributions to the gemma radiation field, caused by (1) the envoloping contaminnting nedium, and (2) the contaminant collected on the ship's woather surfrces, can be determined, 1.6.4 It is assumed that differonces in the gemma rediation ficld obsorved et a given location and time on the two ships are attri-~ butable to the washdowm action alone excopt in the vicinity of the ventilation test spices, 1.6.5 Some extrapolation of attenuation factors may be necessary for paragraph 3.1.1 if there is a significant variation in the moan gamma rediction onergy. 1.6.6 The washdom waterflov to specific sroas will be estimated only by means of pressure reedings end nozzle cheractcristics,. ST. LOUIS FRC 1.6.7 Thore arc three types of washed protecting domes over the gamma radiction detection stctions but only two of these are cclibreted for the offects of contaminated water as specified in Teb A-8, The offoct on the third type will bo obtained by means of interpolation of the results obtained on the other two, Gees SS