WEEK 14th: Prepare for the presentation

Pray for the successfull

WEEK 13th: Manage the poster

Yhe picture above is the poster that has been complete create for my presentation

WEEK 12th: Essemble and build the full device

Safety precaucation is the main factor that i need to prepare, so that the x-ray tube has been bounded and has been provided with head sink as well as switch to make sure the machine is 100%safe

WEEK 11th: Finding the lead sheet for safety precausion

The lead sheet that has been bought specification is 0.045 mm. So that, the requirement for my device is 1cm and its need to be bounded layer by layer to make sure that safety precaution is better

WEEK 10th: finding the housing for the device

The housing that i want to use actually is kind of "lead box" because it can increase the safety precausion but because of the price is very expensive than i just can make it by using a plastic tool box like figure above.

*try to find at another place including oversea to find the cheap lead box but still cant be found

WEEK 9th: Buy the others component

The simple and the other component that easily can buy th Jalan Pasar as shown as pic above
*the list of component has been provided inside the report

WEEK 8th: Ion ray gun, detail and its function (precaution)

This is simply a "gun" that charges nearby particles and is not confined to a vacuum tube. In any case, it could also be called a high voltage power supply.

What do you do with such a device? Well for starters you can light up certain phosphorescent or fluorescent materials by simply pulling the trigger and hitting them with the ion beam. It can light up fluorescent lights from a distance by merely shooting them with this gun. It can also supposedly charge capacitors at a distance and operate a number of electrical devices remotely. Most interesting of all, however, is that this gun is capable of inducing severe shocks from a small distance.

I bought the kit for the device from Information Unlimited and assembled it.The device generates about 100,000V and is very capable of inducing painful electric shocks and even acrid ozone gas.

The best way to ensure the most of the electricity is discharged from the end of the voltage multiplication circuit is to attach a sharp object such as a needle to the end of the safety resistor, using epoxy or some sort of adhesive, while making sure the two components are connected. This provides an excellent point for the ionization energy to transfer to the surrounding air. If you do not have a sharp point where you want the ionization to occur, it will probably take place on the capacitor leads, which are rather sharp. Make sure that when you are soldering the multiplication circuit the solder forms globules rather than the so-called icicles and the effectiveness of the ion gun will be greatly increased.

If want more power, remove the safety resistor on the end, but be careful since it hurts bad enough to get a shock with the resistor.

How does this device work? Essentially, it is supplied with a direct voltage by the 12V source (usually batteries). This is changed into an oscillating signal by an RC combination. This signal is passed through the transformer, which increases the original voltage by a factor of about 300. This higher voltage is placed across a series of diodes and high voltage capacitors, which form what is known as a voltage multiplication circuit.

The diodes prevent the capacitors from discharging in reverse and make the capacitors appear to be wired in series. As you may know, when two capacitors are in series, they act the same way as batteries do in series and their voltages simply add up. In this case, it produces an extremely high voltage. Fortunately, the capacitors are only able to hold a certain amount of energy before discharging. This prevents them from releasing a continuous output and gives them a charging time. If the output was produced only by the transformer, there would be no charging time and the output would be continuous.

R1 2.2K 1/4W Resistor

R2,7 27Ohm 1/4W Resistor

R3 220Ohm 1/4W Resistor

R4,5 100MOhm Resistor

C1 .47 MFd/50V Capacitor

C2,3 .047 to .068 MFd Capacitor

C4 1MFd 100V Capacitor

C5 .001MFd/15KV Capacitor

D1 22KV 5MA Avalanche Diodes

Q1 MJE3055 T0220 NPN GP Transistor

T1 2100:8:8

BH1 8 Cell AA Battery Holder

S1 Push Button Switch

CL1 Battery Snap Clip

HS1 Heat Sink Bracket

WEEK 7th: Assemble the Ion Ray Gun

As the pic above is the "ion ray gun" which is are not assemble yet , and the second pic is when the ion ray gun has been assemble 100% and has been put inside their housing to make sure the people surrounding is save from the high voltage

WEEK 6th: Import the ion ray gun as a power supply

Its very difficult to import this ion ray gun because of the custom procedure. It is because this devise has been stuck at custom because of the price is more than rm500 and i need to pay the tax, this procedure is take a couple of day to declare. But it still can be import after that

WEEK 5th: Vacuum Tube 2X2A imported

The first component that has been import is this Vacuum tube 2X2A.

This is the x-ray tube that can produce an x-ray (radiation).
Eventhought the intensity of photon that has been produce but it still dangerous for human being.

*the data sheet is provided inside the report

WEEK 4rd: Seeking for help from experience people

IN this week im trying to find the person that has an experience about x-ray to give their suggestion and he is:

*Pic is loading

AZAHARI BIN ZAINI
26 YEARS OLD
AS A X-RAY TECHNICIAN AT HOSPITAL KUALA LUMPUR (HKL)

with him the most things that has been discuss is about the safety precausion

WEEK 3rd: Confirmation of the purchasing of the part and component of the project device

WEEK 2nd: Starting doing the survey of component and part of the project device

To build this device, its need to import a lot of thing from an oversea because of this limitation, its need to import one-by one to avoid from the problem related with the Malaysians custom.

This is the important things that need to buy from oversea


Figure 1. The diagram shows the three main parts of a homemade X-ray machine: a high voltage power supply, an X-ray tube, and shielding for safety.

1.X-RAY TUBE

2.HIGH VOLTAGE POWER SUPPLY

3.LEAD SHIELDING 

1.For the XRAY TUBE (2X2A) has been import from

http://www.tubesandmore.com/products/T-2X2A_2Y2_879

2.For the High voltage power supply, that has been replace with another type of device which is ion ray gun and it has been import from

www.amazing1.com

3.For shielding lead that just import from Malaysia only (save budget)!!!

So that, there the 3 things that very important to have in order to make the device is functioning

WEEK 1st: Refresh the project knowledge

This project need to be done with carefully because of the radiation factor, need to be specific about  the radiation behavior and the detail about it to make sure people surrounding is safe.

What is radiation?

Figure 1. The electromagnetic spectrum, marked off above in various frequency (Hz) ranges, is composed of non-ionizing radiation and ionizing radiation. We spend most of our lives being constantly, and safely, exposed to many types of radiation including radio waves, microwaves, and visible light. (OSHA, 2011)

• Breaking important chemical bonds

• Producing free radicals: these are extremely reactive ions in the body that interrupt normal function and cause cellular and tissue damage when they react with biological pathways

• Creating new, harmful, chemical bonds between macromolecules that would otherwise not occur

• Directly damaging molecules like DNA, RNA, and proteins that are responsible for normal cellular function

What exactly are X-rays, and how are they made?

Figure 2. This photograph shows what two modern X-ray tubes look like. (Raziel, Wikimedia Commons, 2007)

How dangerous is radiation, and how is it measured?

Radiation Measurement	Quantifies	SI unit	Traditional unit	Equivalency
Absorbed dose	Conveys the raw amount of radiation energy that is absorbed by an object	gray	rad	1 gray = 100 rad
Biologically effective dose	Conveys the absorbed dose corrected for how harmful that type of radiation is to human tissue	sievert	rem	1 sievert = 100 rems

Table 1. Radiation measurements can be quantified in a variety of ways.

Factor of radiation effect body:

• Time: The less time you spend exposed to radiation the lower your dose. When experimenting, make sure you know exactly what you need to get done with the radiation. If necessary, go through a dry run practicing all your motions without the radiation. Only use the radiation when you have worked out all the other potential problems with your experimental procedure.

• Distance: Like most other physical phenomena, radiation decreases with distance in accordance with the inverse square law. This means that the further away you are from the source of the radiation, the less radiation you'll be exposed to. Try to plan your experiments so that you, and anyone else around, are standing as far away from the radiation source as possible.

• Shielding: As ionizing radiation passes through matter, the intensity of the radiation is diminished. Thus, to protect yourself from radiation you should erect a barrier or shield. However, the material you use matters significantly; some materials reduce the intensity of radiation more than others. Every material has a "halving thickness." This is the thickness required to reduce the radiation intensity by half. So if the halving thickness of a material is 1 inch, then a 1 inch thick sheet will cut the radiation to 50%. Two inches will cut the radiation to 25%, 3 inches to 12.5%, and so forth. Traditionally lead is used for shielding because it has a very low halving thickness (0.4 inches). Before working with radiation, erect the shielding. When working with radiation, staying behind the shielding can be an effective way of diminishing your radiation exposure.

How much radiation can be safely exposed to?

• A single chest X-ray or dental X-ray, both of which are considered to be medically safe, exposes a patient to 10mrem of radiation. Limiting your exposure for a single experiment to 10mrem would be similar to getting an X-ray.

• The international safety standard is 5,000mrem or less per year. Your annual exposure, both normal and experimental, should fall below the 5,000mrem level.

The word "radiation" might make you think of disaster-filled science-fiction movies and mutant monsters, but the truth is radiation is a daily part of all of our lives. Radiation exists all around us. It is in our homes as part of our radios and microwave ovens, and we (like all other creatures and objects on Earth) experience extremely low levels every moment from our natural environment.

Most simply put, radiation is energy that travels through space as either waves or high speed particles. There are two types of radiation: non-ionizing radiation andionizing radiation. Together these two types of radiation form the electromagnetic spectrum, shown below in Figure 1.

Non-ionizing radiation does not have as much energy as ionizing radiation; thus, it is generally less harmful. The energy contained in non-ionizing radiation is enough to make the electrons in atoms or molecules wiggle and dance but not enough to strip the electrons away. In contrast, ionizing radiation has enough energy to ionize (strip away an electron leaving an unpaired electron behind) atoms and molecules, hence the name. This process and the resulting ions can cause serious damage to tissues and cells. It causes damage through several mechanisms, including:

Depending on the amount and duration of ionizing radiation exposure, all or none of these types of damage can occur. Extremely high doses of radiation can lead to radiation sickness or even death. An above average amount of radiation exposure can be responsible for increasing one's chance of developing cancer.

Not all ionizing radiation is bad though. Ionizing radiation can be used in the medical field for imaging, for example X-rays to look at bone, or treatment as in the case of cancer radiation.

X-rays are a type of ionizing radiation that exhibit both wave-like and particle-like properties. The wavelengths of X-rays are so short that they can travel very far through matter. For this reason they are both useful and dangerous. Safety precautions need to be taken to make sure the ionizing radiation does not damage living tissue.

X-rays are produced when electrons give up some of their energy when they react with either the nucleus of an atom or orbital electrons. There are two atomic ways for this to occur. In both cases free electrons are shot at a target of heavy atoms (like Tungsten). In the Bremsstrahlung process, the high-velocity free electrons slow down as they interact with the target atom, especially its high proton-count nucleus. This slowdown is translated into electromagnetic energy and radiated out in the form of X-rays. In the K-shell emission process, the high-velocity electrons knock out electrons from the inner orbit (K-shell) of the target atoms. Higher-energy electrons from the target atoms' outer orbit descend in to the lower-energy inner orbit to fill in the space created in the inner orbit. The descent releases excess electromagnetic energy in the form of X-rays. Tungsten is the typical target for either of these X-ray generating processes in an X-ray tube like the one shown in Figure 2 below.

Medical X-ray machines, and our homemade x-ray machine, use X-ray tubes to produce and control X-rays. These tubes have a cathode which releases electrons in to the vacuum and an anode that collects the electrons. This flow of electrons from cathode to anode is known as the beam. When the vacuum tube is hooked up to a high voltage power supply, the energy is sufficient to accelerate electrons to extreme velocities until they collide with the metal anode. This collision knocks off inner orbital electrons from the anode atoms. The subsequent act of other orbital electrons filling in the gap is what causes X-rays to be emitted. The energy of the X-rays emitted is directly proportional to the voltage applied through the tube. The minimum voltage needed to produce X-rays from a vacuum tube is approximately 20,000 V (20 kV).

As mentioned above in the description of "What is radiation?", ionizing radiation is capable of causing significant damage to living cells. That doesn't mean that just any exposure will cause harm. A small amount over a short period of time may be harmless. To answer whether a specific exposure is harmful or harmless, scientists focus on quantifying and measuring the dose.

There are two ways of expressing the dose. The first is the absorbed dose. This is a measure of the total amount of ionizing radiation energy absorbed by an object. The SI (International System of Units) unit for 1 joule of ionizing radiation absorbed by 1 kilogram of matter is called the gray. In the United States the absorbed dose is traditionally reported in rads as opposed to gray. Table 1 below shows how to convert between rads and gray. However, not all ionizing radiation has the same effect on human tissue. For example, alpha particles, a different type of ionizing radiation, are 20 times more likely to cause cellular damage than X-rays for an equivalent absorbed dose. To reflect those differences scientists refer to the biologically equivalent dose. To calculate the biologically equivalent dose, the absorbed dose is multiplied by a relative harm factor for that type of radiation. Sieverts are the SI unit of measurement for biologically effective dose; in the United States the traditional unit is rems. Table 1 below shows how to convert between rems and sieverts.

When working with radiation, the biologically effective dose is what matters most for personal safety. For X-rays, the relative harm factor is 1; this means that a 1 rad absorbed dose is equivalent to a 1 rem biologically effective dose.

Whether it comes from the ground, the sky, or medical treatment, humans are constantly exposed to ionizing radiation from the world around them. This is a normal occurrence, and has always been the case. According to the America nuclear society the average person is exposed to a dose of approximately 620 mrem per year (a mrem is one thousandth of a rem). That is just an average though, and the actual figure may fluctuate widely per person depending on where they live and the medical procedures they've had that year. The international standard is to allow people who work with and around radioactive material (researchers, nuclear power plant workers, X-ray technicians etc.) to have exposures of no more than 5,000 mrem total per year. The 5,000 mrem annual dose is considered to be safe and not significantly increase the risk for radiation-related health effects.

You can estimate your own annual radiation dose using the American Nuclear Society's interactive radiation dose chart.

At high biologically effective doses ionizing radiation can cause serious tissue damage. For this reason, anyone doing experiments with radioactive materials must monitor how much radiation they are being exposed to. This can be done simply with a Geiger counter. Geiger counters are tools that detect and measure ionizing radiation. Borrow or purchase a reliable Geiger counter before doing any radiation experiments!

Carefully read the instruction manual that comes with the Geiger counter, or if you are borrowing one, make sure you are carefully instructed by someone already trained to use the Geiger counter. Geiger counters typically give readings in some fraction of sieverts or rems per hour. You can use this information and the time you spend experimenting to calculate your total exposure dose (time in hours multiplied by the Geiger counter's mrem per hour reading). It is always wise to decrease your exposure as much as possible.

When experimenting with ionizing radiation, like X-rays, diminishing your and everyone else's exposure should be the first priority. Ionizing radiation can have serious health effects at high biologically effective doses including skin burns, an increase in cancers, radiation sickness, and even death.

There are three components that figure into the total radiation dose: time, distance, and shielding.

With radiation the answer is usually the less the better. Here are a couple of facts to keep in mind.

REFERENCE:

www.sciencebuddies.org/science-fair-projects/project_ideas/Xray_Safety.shtml