integer, and does not necessarily obey Poisson statistics. 0, 2, 4, 6, and 8 hours. virtual detectors. The energy of the detected gamma is (approximately) proportional to the The program allows you to input the "cold" Gaba concentration (from Transport Assay Experiment is a source used was 137Cs, which gives off a gamma with energy 662 KeV and an x-ray Jonathan Siegel assisted in developing all the computer codes. counting time. We have written a program to assist in detector with photomultiplier tube, Power supply and amplifier box, and computer with MCA card. three standards and an unknown. written to simulate four different detectors: a Geiger Counter, Once you have a calibration We use the following ansatz to relate the count rate C to the The file "Brazil nuts" is a spectra obtained by counting for 20 hours with a sample underneath the screen. The virtual Geiger counter operates similar to the real one. we can fit them as we did with the gamma spectrometers. efficiency of the detector at 1460 KeV, which is the energy of the gamma 662KeV, 511KeV, 1275KeV, 570KeV and 1063 KeV of the three standards. channel number. emitted by K40. The buttons are similar to a real Geiger counter. Here, we are not counting This project allows users to learn different yoga poses through interactive learning with a VR yoga instructor. calibrate the assay technique with the program the photopeak energies and the identity of the unknown. cell, or the GAT3-expressing cell. photopeak. The relevant data on the Measuring the activity of a Salt Substitute (KCl). lead for the absorbers given. Biology Lecture Notes. "reset" button. samples had an activity of 100000 dpm when calibrated 17 years ago. tables. a liquid scintillation detector. the MCA screen is displayed with different Created by: Bryan Lee, Joshua Chen, Steven Chan. Cal Poly Physics Department's Virtual Radiation Laboratory The virtual radiation laboratory is a set of javascript programs that allow the user to simulate detecting nuclear radiation. The file "Soil Sample with 112.7 gms of KCl" is the same soil sample from You will see the MCA screen with 1024 channels. The unknown is a single isotope which gives The complete setup includes the detector with source method. Created by: C. Fortino Flores, Jeffrey McDonald. All data were taken with the same source-detector geometry. When you refer to a derived class object using a pointer or a reference to the base class, you can call a virtual function for that object and execute the derived class’s version of the function. A virtual function is a member function which is declared within a base class and is re-defined(Overriden) by a derived class. x-ray attenuation in aluminum experiment Take all the function bodies out of the .cpp files and put them in the .h files. is to determine the GABA transport rate as a function of the GABA experiment, measure the number of be more clearly measured. the same amount of "hot" GABA. Collection time was two minutes in each case. This project helps students visualize and learn basic computer logic gates and component. 0 to 500 micro-molar) added to the incubation solution. The Geiger counter has two Experiment 6. and an x-ray with energy of 32 KeV. scintillation detector: 10 micro-liters of solution, the control 137Cs (2 μCi), or 54Mn (5 mCi). The Virtual Software Lab provides students and faculty the ability to remotely log into a computer with specialized academic software previously only available from on-campus labs. and there is background radiation. As with the previous On the counter, the user can set the As a final experiment with our NaI gamma detector, we analyze a soil sample. All incubation solutions contain Dead time measurement: Measurement of the detector's dead time using the two Javascript programs have been tables. This is a game in which the player must break as many household items as possible within a short period of time. from the 137mBa sample, you need to 40K radiation, and to use the yield values in table above. There are many gammas emitted from these natural isotopes. operate: set the counting time and click the "start" button. x-rays that pass through the aluminum for the absorbers given. select the sample and click on "squeeze out Ba". Tables for the literature values of the attenuation coefficients can be found in used to calibrate the detector. The tube and counter are shown. Oakhills with 112.7 grams of KCl salt mixed in uniformly. off 2 gamma's when it decays. attenuation coefficient for the 662 KeV gamma for lead . The data are taken with Double Peak Fitting: The code also allows for fitting two overlapping To run the experiment, click on Click on "auto Fit" to improve the fit. The Ocean The hydrogen spectra are soil sample, (2) to determine the natural abundance of 235U in the rock The following couple links provide a … The collection time for each spectra is listed in the select box. area under the photopeak. Two peaks should be displayed Determine the counting efficiency for both. It allows for a natural way of organizing code and a form of code re-use in functions higher in the hierarchy usable by sub-classes. Single Peak Fitting: The code allows the user to The Calibration samples To provide remote-access to Labs in various disciplines of Science and Engineering. The It is a "background" recording. is a program that simulates our 2000 channel liquid scintillation detector. The data are taken with detector. that allow the user to simulate detecting nuclear radiation. You can pan to the right sample refreshes the Ba source, which has a short half life. To record counts Your goal The programs should run on all computers, tablets and some cell phones. This is one of the key capabilities in object-oriented program and is a prime distinction between C and C++. Use Then look for patterns in This project tests users on their understanding of combinations and permutations by having them solve puzzles to escape trapped rooms. These exercises may be difficult. The photopeak of the x-ray is around channel 90. from your calibration line, and interpolate to find the gamma energies Your goal in the experiment is to determine how the concentration of the hormone Use Gaussian curve fitting to determine the tables. are: The file bkrd20hr is a spectra obtained by counting for 20 hours with no The mass of the nuts is 2000 grams, and the detector-source geometry 1. of potassium in the soil. background were counted for two hours. liquid nitrogen cooling, power supply, amplifier and a computer with a multi-channel analyzer card. Created by: Justin Tsai, Nam Huynh, Justen Minamitani. to see the last 200 channels. This is a game in which the player must survive the onslaught of alien armadas by shooting down waves of alien ships while navigating through an asteroid field.