1. NeD

2. Measurement of the energy spectrum of cosmic-ray induced neutrons aboard an ER-2 high-altitude airplane P. Goldhagena,*, M. Reginattoa, T. Knissb, J.W. Wilsonc, R.C. Singleterryc, I.W. Jonesc, W. Van Stevenincka US Department of Energy, Environmental Measurements Laboratory

5. Neutron Flux @ Palestine, Texas 31N, 95W Calibrated Value from Table and Flux Calculator () = 1 neutron /cm^2/s Altitude (km)Internet Flux 1.28 (184.57) 0.0122 (80.33) 3.4 (96.61) 10 (114.53) 10.2 (161.29)MEAN STANDARD DEVIATION 00.90.004880.011200.009320.007860.005580.009460.00168 1.5243.170.017180.039460.032810.027680.019650.033320.00591 3.0489.240.050060.115030.095640.080680.057290.097120.01722 4.57222.920.124180.285320.237240.200120.142100.240900.04272 6.09649.320.267220.613970.510510.430630.305780.518370.09192 7.6293.550.506851.164570.968330.816820.580010.983240.17436 9.144158.770.860221.976471.643411.386270.984381.668720.29591 10.668244.251.323353.040582.528212.132631.514352.567140.45523 12.192344.811.868184.292423.569093.010652.137833.624050.64265 13.716452.032.449105.627164.678923.946832.802594.750970.84248 15.24556.733.016366.930545.762654.861003.451735.851401.03762 16.764651.463.529618.109806.743195.688124.039066.847041.21418 18.288731.793.964849.109807.574686.389504.537117.691331.36389 19.812796.424.315009.914358.243666.953814.937818.370611.48435 21.336846.274.5850910.534928.759657.389075.246888.894551.57726 22.86883.444.7864810.997639.144397.713615.477349.285211.64653 24.384910.44.9325511.333259.423467.949015.644499.568571.69678 25.908929.475.0358711.570659.620858.115525.762739.769001.73232 27.432942.645.1072211.734599.757178.230515.844389.907421.75687 28.956951.485.1551211.844649.848678.307695.89919 10.0003 31.77335 29.7954.65.1720211.883489.880968.334935.91853 10.0331 31.77916

7. The role of cosmic rays in the atmospheric processes Y I Stozhkov Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia

12. Weight Budget: Sensor circuitry / PMTs and Bases 111 g Frame90 g Control circuitry (Balloon SAT)70 g Moderating Material/ Scintillator88.4 / 30 g Power Source67.6 g Support System/ Platforms15 g Insulation15 g TOTAL487 g* (398.4) *Weights listed are subject to change as specific sensors and components are found and completed.

13. 1.0 Payload Design 1.1 Frame 1.1.1 Balloon attachments 1.2 Sensing Structure 1.2.1 PMT/Diode attachment 1.2.2 Scintillation base 1.2.3 Photon shielding 1.2.4 Photon capture 1.2.5 Photon noise reduction 2.0 Electrical Design 2.1 Preamp 2.2 Discriminator 2.2.1 Comparator 2.3 Counter 2.4 Basic Stamp 2.5 Sensing 2.5.1 DC/DC Converter 2.5.2 Photodiode 2.5.3 PMT 2.5.3.1 Base 2.5.3.2 Structural platform 3.0 Software Design 3.1 Basic Stamp 3.1.1 Pre-flight initialization 3.1.2 Flight software 3.1.3 Post flight data retrieval 3.2 PC software 3.2.1 Calibration 3.2.2 Altitude-Time converter 3.2.3 Graphical representation 4.0 Power 4.1 BalloonSat 4.2 PMT 4.2.1 DC/DC converter 4.3 Photodiodes 4.3.1 DC/DC converter 4.4 Preamp/Discriminator