- Hits: 687
system test specification of LINAC
SYSTEM TEST CASES
00001: Ensure complete emptying of air
| Step | Step description | Expected result |
| precondition | system is off | |
| Switch on the system | turn on the pump | 95% vacuum |
| Having a leak | we found a leak in the anode, the cathode and the joint between the cathode and the pump hose | Seal the leakage places |
| Switch Off the system | Turn Off the pump | the pump stops pulling out the air |
| Silicon use | Put silicon in places where air leaks | Stop leakage and get 95% vacuum when we restart the pump. |
| Postcondition | System is off |
00002: power supply
| Step | Step description | Expected result |
| Precondition | System is Off | |
| Switch On the system | turn on the power supply (P1) | Get continuous power (6 V) |
| Switch Off the system | turn Off the power supply (P1) | Continuous power stops |
| Postcondition | System is Off |
00003: Get electrons
| Step | Step description | Expected Result |
| Precondition | System is Off | |
| Switch On the pump | turn On the pump | 95 % vacuum |
| Switch On the power supply | Turn on the power supply | Get continuous power (6 V) |
| Burning the Tungsten (or use a electron gun) | Burn the Tungsten by supplying it with 6 V power |
Get electrons around the Tungsten (the lamp will light) |
| Switch Off the power supply | turn Off the power supply | the lamp will turn Off |
| Switch Off the pump | turn Off the pump | the pump stops pulling out the air |
| Postcondition | System is Off |
00004:High voltage
| Step | Step description | Expected Result |
| Precondition | System is Off | |
| Switch On the system | Turn On the HV | Get continuous power ( between 5 Kv and 60 Kv ) |
| Switch Off the system | Turn Off the HV | Continuous power stops |
| Postcondition | System is Off |
00005: Acceleration of electrons
| Step | Step description | Expected Result |
| Precondition | System is Off | |
| Switch On the pump | turn On the pump | 95% vacuum |
| Switch On the power supply | turn On the power supply | Get continuous power (6 V) |
| Switch On the High Voltage | Turn on the HV power supply | Get continuous power ( between 5 Kv and 60 Kv ) |
| electrons acceleration | Connecting the high voltage to the anode and the cathode (while controlling the change of force until we see the passage of electrons and their acceleration) | Electrons leaving the anode accelerate towards the cathode and collide with it |
| Switch Off the HV | Turn off The HV power supply | Electrons acceleration Stop |
| Switch Off the power supply | turn Off the power supply | the lamp will turn Off |
| Switch Off the pump | turn Off the pump | the pump stops pulling out the air |
| Postcondition | System is Off |