Difference between revisions of "Mini-prototype"

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A CAEN 4 channel high voltage supply ([http://www.caen.it/nuclear/product.php?mod=N470&fam=nimps N470]) will be used to supply HV for the drift chambers.  The supply is capable of monitoring currents at the microAmp(<math>\mu</math>A) level and voltages at the Volt (V) level.
 
A CAEN 4 channel high voltage supply ([http://www.caen.it/nuclear/product.php?mod=N470&fam=nimps N470]) will be used to supply HV for the drift chambers.  The supply is capable of monitoring currents at the microAmp(<math>\mu</math>A) level and voltages at the Volt (V) level.
  
==== Signal Processing====[[Image:Eelectronics.jpg | 100 px]]
+
==== Signal Processing====
 +
[[Image:Eelectronics.jpg | 100 px]]<br>
 
The output signals from the drift chamber will be processed through several  
 
The output signals from the drift chamber will be processed through several  
 
[http://iac.isu.edu/mediawiki/index.php/Image:Eelectronics.jpg NIM based modules].
 
[http://iac.isu.edu/mediawiki/index.php/Image:Eelectronics.jpg NIM based modules].

Revision as of 17:08, 18 August 2007

Drift Chamber prototypes were constructed to evaluate drift chamber designs for CLAS12 MiniPrototypeWirePattern.jpg

Mini-prototype Performance Measurements

General Operating Condition

Chamber Ionization Gas

Our initial plan will be to use [math]ArCO_2[/math] (75/25) flowing though the chamber at a flow rate high enough to exchange the volume once a day.

high Voltage supply

A CAEN 4 channel high voltage supply (N470) will be used to supply HV for the drift chambers. The supply is capable of monitoring currents at the microAmp([math]\mu[/math]A) level and voltages at the Volt (V) level.

Signal Processing

Eelectronics.jpg
The output signals from the drift chamber will be processed through several NIM based modules.

Dan or Phil:  Insert specs of amplifier needed to see DC signals

A descriminator from

Cosmic tests

Place chamber between two plastic scintillator paddles to check signals.

scope pulses

DAQ

describe the DAQ for measuring detector output

Electron test facility

IAC 25 MeV electron accelerator

secondary electron beam setup

Description of collimation system goes here as well as lead pencil target. Description of how beam size will be measured or why it isn't needed.

stepper device

Drift Chamber efficiency

Efficiency -vs- Distance

Plastic feedthrough

Metal feedthrough